Air-sea rescue ( ASR or A/SR , also known as sea-air rescue ), and aeronautical and maritime search and rescue ( AMSAR ) by the ICAO and IMO , is the coordinated search and rescue (SAR) of the survivors of emergency water landings as well as people who have survived the loss of their seagoing vessel. ASR can involve a wide variety of resources including seaplanes , helicopters , submarines , rescue boats and ships. Specialized equipment and techniques have been developed. Both military and civilian units can perform air-sea rescue. Its principles are laid out in the International Aeronautical and Maritime Search and Rescue Manual . The International Convention on Maritime Search and Rescue is the legal framework that applies to international air-sea rescue.
195-445: Air-sea rescue operations carried out during times of conflict have been credited with saving valuable trained and experienced airmen. Moreover, the knowledge that such operations are being carried out greatly enhanced the morale of the combat aircrew faced not only with the expected hostile reaction of the enemy but with the possible danger of aircraft malfunction during long overwater flights. As such, many militaries have opted to develop
390-475: A Sikorsky S-51 , occurred in 1946. Over the following decades, more capable rotorcraft, such as the Sikorsky SH-3 Sea King and Eurocopter HH-65 Dolphin , made longer range operations possible, with parallel advances in equipment improving both the speed and the level of help that air-sea rescue platforms could provide. The 1980s additionally saw the formal introduction of training programs for
585-645: A blue-water navy was vital for global power projection; Tirpitz had his books translated into German, while Wilhelm made them required reading for his advisors and senior military personnel. However, it was also an emotional decision, driven by Wilhelm's simultaneous admiration for the Royal Navy and desire to surpass it. Bismarck thought that the British would not interfere in Europe, as long as its maritime supremacy remained secure, but his dismissal in 1890 led to
780-592: A grenade at the Archduke's car and injured two of his aides. The other assassins were also unsuccessful. An hour later, as Ferdinand was returning from visiting the injured officers in hospital, his car took a wrong turn into a street where Gavrilo Princip was standing. He fired two pistol shots, fatally wounding Ferdinand and his wife Sophie . According to historian Zbyněk Zeman , in Vienna "the event almost failed to make any impression whatsoever. On 28 and 29 June,
975-540: A guerrilla warfare campaign and only surrendered two weeks after the armistice took effect in Europe. Before the war, Germany had attempted to use Indian nationalism and pan-Islamism to its advantage, a policy continued post-1914 by instigating uprisings in India , while the Niedermayer–Hentig Expedition urged Afghanistan to join the war on the side of Central Powers. However, contrary to British fears of
1170-596: A PBY Catalina, was given the mission of plucking downed airmen from the ocean in January 1943. From January to August, such rescue flights based at Guadalcanal saved 161 aviators. Beginning in November 1943, during the Gilbert and Marshall Islands campaign , American submarines were tasked with the rescue of U.S. Navy and Marine airmen downed during aircraft carrier attack operations. Submarines were often vectored to
1365-562: A United States naval aviator in an M.5. The Aeromarine Plane and Motor Company modified the Felixstowe F.5 into Aeromarine 75 airliner flying boats which with Aeromarine West Indies Airways flew Air Mail to Florida, Bahamas, and Cuba along with being passenger carriers. The German aircraft manufacturing company Hansa-Brandenburg built flying boats starting with the model Hansa-Brandenburg GW in 1916. The Austro-Hungarian firm, Lohner-Werke began building flying boats, starting with
1560-425: A capable air-sea rescue component, and ensure that such assets are available during most deployments. Early air-sea rescue operations were performed by flying boats or floatplanes , with the first dedicated unit operating such aircraft being established near the final months of World War I . While initially restricted to in-shore operations and with limited equipment, capabilities and resources would be expanded over
1755-408: A change in policy and an Anglo-German naval arms race began. Despite the vast sums spent by Tirpitz, the launch of HMS Dreadnought in 1906 gave the British a technological advantage. Ultimately, the race diverted huge resources into creating a German navy large enough to antagonise Britain, but not defeat it; in 1911, Chancellor Theobald von Bethmann Hollweg acknowledged defeat, leading to
1950-613: A direct threat. The 1908–1909 Bosnian Crisis began when Austria annexed the former Ottoman territory of Bosnia and Herzegovina , which it had occupied since 1878. Timed to coincide with the Bulgarian Declaration of Independence from the Ottoman Empire, this unilateral action was denounced by the European powers, but accepted as there was no consensus on how to resolve the situation. Some historians see this as
2145-469: A five-seat Sanchez-Besa from 1 August 1912. The French Navy ordered its first floatplane in 1912. None of these crafts to date were flying boats. In 1911–12, François Denhaut constructed the first flying boat , with a fuselage forming a hull, using various designs to give hydrodynamic lift at take-off. Its first successful flight was on 13 April 1912. Throughout 1910 and 1911 American pioneering aviator Glenn Curtiss developed his floatplane into
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#17327759552662340-470: A flying boat’s fuselage provides buoyancy, it may also utilize under-wing floats or wing-like hull projections (called sponsons ) for additional stability. Ascending into common use during the First World War , flying boats rapidly grew in both scale and capability during the interwar period , during which time numerous operators found commercial success with the type. Flying boats were some of
2535-698: A fully enclosed cabin. Trials of the America began on 23 June 1914 with Porte also as Chief Test Pilot; testing soon revealed serious shortcomings in the design; it was under-powered, so the engines were replaced with more powerful engines mounted in a tractor configuration. There was also a tendency for the nose of the aircraft to try to submerge as engine power increased while taxiing on water. This phenomenon had not been encountered before, since Curtiss' earlier designs had not used such powerful engines nor large fuel/cargo loads and so were relatively more buoyant. In order to counteract this effect, Curtiss fitted fins to
2730-581: A further sum" from the Women's Aerial League of Great Britain. American businessman Rodman Wanamaker became determined that the prize should go to an American aircraft and commissioned the Curtiss Aeroplane and Motor Company to design and build an aircraft capable of making the flight. Curtiss' development of the Flying Fish flying boat in 1913 brought him into contact with John Cyril Porte ,
2925-471: A gap between the German armies as they closed on Paris. The French army, reinforced by the British expeditionary corps, seized this opportunity to counter-attack and pushed the German army 40 to 80 km back. Both armies were then so exhausted that no decisive move could be implemented, so they settled in trenches, with the vain hope of breaking through as soon as they could build local superiority. In 1911,
3120-585: A glide." At Felixstowe, Porte made advances in flying boat design and developed a practical hull design with the distinctive "Felixstowe notch". Porte's first design to be implemented in Felixstowe was the Felixstowe Porte Baby , a large, three-engined biplane flying-boat, powered by one central pusher and two outboard tractor Rolls-Royce Eagle engines. Porte modified an H-4 with a new hull whose improved hydrodynamic qualities made taxiing, take-off and landing much more practical, and called it
3315-493: A heavily modified Short Empire flying boat. The larger Maia took off, carrying the smaller Mercury loaded to a weight greater than it could take off with. This allowed the Mercury to carry sufficient fuel for a direct trans-Atlantic flight with the mail. Unfortunately this was of limited usefulness, and the Mercury had to be returned from America by ship. The Mercury did set a number of distance records before in-flight refuelling
3510-436: A high level, they must be expert in first aid treatment methods, and they are often highly trained technicians crucial to the operation of the rescue craft. Flying boat A flying boat is a type of seaplane with a hull , allowing it to land on water. It differs from a floatplane in having a fuselage that is purpose-designed for flotation, while floatplanes rely on fuselage-mounted floats for buoyancy . Though
3705-418: A higher degree on hoists , rescue baskets , and rescue swimmers. Helicopters became frequently used, due to a number of advantages; they could fly in rougher weather than fixed-wing aircraft and could deliver injured passengers directly to hospitals or other emergency facilities. Helicopters can hover above the scene of an accident while fixed-wing aircraft must circle, or for seaplanes, land and taxi toward
3900-404: A joint bid. A company under combined ownership was then formed, Qantas Empire Airways. The new ten-day service between Rose Bay, New South Wales (near Sydney ), and Southampton was such a success with letter-writers that before long the volume of mail was exceeding aircraft storage space. A better solution to the problem was sought by the British government during the early 1930s, who released
4095-452: A number of contracted Sikorsky SAR helicopters from bases in Dublin, Waterford, Shannon and Sligo under the €500 million contract, from 2010, a previous fleet of Sikorsky S-61N helicopters were replaced with five newer Sikorsky S-92 helicopters. One of the new S-92 helicopters is located at each of the four IRCG bases, with one spare replacement aircraft being rotated between bases. In 2020,
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#17327759552664290-548: A possibility. This was accentuated by British and Russian support for France against Germany during the 1911 Agadir Crisis . German economic and industrial strength continued to expand rapidly post-1871. Backed by Wilhelm II, Admiral Alfred von Tirpitz sought to use this growth to build an Imperial German Navy , that could compete with the British Royal Navy . This policy was based on the work of US naval author Alfred Thayer Mahan , who argued that possession of
4485-458: A publicity stunt. It flew to America in 1930–31, crossing the Atlantic via an indirect route over 9 months. It was the largest flying boat of its time, but was severely underpowered and was limited by a very low operational ceiling. Only three were built, with a variety of different engines installed, in an attempt to overcome the lack of power. Two of these were sold to Italy. The Dornier Wal
4680-444: A rescue site by aircraft providing coordinates, but too many layers of command slowed the cooperation considerably. Long-range naval patrol aircraft were fitted with extra radio equipment to allow direct contact with surface and underwater units. By the end of 1944, some 224 airmen had been rescued by submarine. Dumbo aircraft , converted land-based heavy bombers named after Walt Disney 's animated flying elephant, were sent aloft in
4875-598: A result of this action, British flying boats were dazzle-painted to aid identification in combat. The Curtiss Aeroplane and Motor Company independently developed its designs into the small Model "F", the larger Model "K" (several of which were sold to the Russian Naval Air Service), and the Model "C" for the U.S. Navy. Curtiss among others also built the Felixstowe F.5 as the Curtiss F5L, based on
5070-449: A retired Royal Navy lieutenant, aircraft designer and test pilot who was to become an influential British aviation pioneer. Recognising that many of the early accidents were attributable to a poor understanding of handling while in contact with the water, the pair's efforts went into developing practical hull designs to make the transatlantic crossing possible. At the same time the British boat building firm J. Samuel White of Cowes on
5265-834: A revolt in India, the outbreak of the war saw a reduction in nationalist activity. Leaders from the Indian National Congress and other groups believed support for the British war effort would hasten Indian Home Rule , a promise allegedly made explicit in 1917 by Edwin Montagu , the Secretary of State for India . In 1914, the British Indian Army was larger than the British Army itself, and between 1914 and 1918 an estimated 1.3 million Indian soldiers and labourers served in Europe, Africa, and
5460-516: A significant escalation, ending any chance of Austria cooperating with Russia in the Balkans, while also damaging diplomatic relations between Serbia and Italy. Tensions increased after the 1911–1912 Italo-Turkish War demonstrated Ottoman weakness and led to the formation of the Balkan League , an alliance of Serbia, Bulgaria, Montenegro , and Greece . The League quickly overran most of
5655-545: A similar offer of his expertise to the RAF and he soon began to collaborate with Lawrence in the development of 40 ft (12.2 m) long high-speed launches, purpose-built for sea rescue. The result, built by the BPBC, was the 200-Class Seaplane tender; powered by two 100 HP engines it had a top speed of over 36 knots. Testing on the launch continued from 1931–32 to ensure that the engines could run at sustained high speeds. The ship
5850-667: A single Sunderland operating off Norway was attacked by six German Junkers Ju 88C fighters; during the engagement, it shot one down and damaged another until it retreated and drove off the rest. The Germans reputedly nicknamed the Sunderland the Fliegendes Stachelschwein ("Flying Porcupine") due to its defensive firepower. Sunderlands in the Mediterranean theatre proved themselves on multiple high-profile occasions, flying many evacuation missions during
6045-493: A specification calling for a new large aircraft capable of carrying up to 24 passengers in spacious comfort along with adequate room for airmail or freight while simultaneously being capable of a cruising speed of 170 mph and a range of at least 700 miles; the capacity for an extended range of 2,000 miles to serve the North Atlantic route was also stipulated. Originally intended for use by IAL, partner Qantas agreed to
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6240-686: A three-year-old child who had been submerged in 42 degree water for approximately 15 minutes. After being resuscitated by EMS and at a paediatric trauma center, it was reported in August of that year that the child made a "complete recovery." Since 1993, the Government Flying Service (GFS) has provided air-sea rescue services; prior to this point, the Royal Hong Kong Auxiliary Air Force has been responsible for this. The GFS operates maritime SAR within
6435-478: A war on two fronts; the Schlieffen Plan envisaged using 80% of the army to defeat France, then switching to Russia. Since this required them to move quickly, mobilization orders were issued that afternoon. Once the German ultimatum to Russia expired on the morning of 1 August, the two countries were at war. At a meeting on 29 July, the British cabinet had narrowly decided its obligations to Belgium under
6630-402: A weak Ottoman government, rather than an ambitious Slav power like Bulgaria . Russia had ambitions in northeastern Anatolia while its clients had overlapping claims in the Balkans. These competing interests divided Russian policy-makers and added to regional instability. Austrian statesmen viewed the Balkans as essential for the continued existence of their Empire and saw Serbian expansion as
6825-562: A weak hull and poor water handling. The combination of the new Porte-designed hull, this time fitted with two steps, with the wings of the H-12 and a new tail, and powered by two Rolls-Royce Eagle engines, was named the Felixstowe F.2 and first flew in July 1916, proving greatly superior to the Curtiss on which it was based. It was used as the basis for all future designs. It entered production as
7020-455: A whole, the Somme offensive led to an estimated 420,000 British casualties, along with 200,000 French and 500,000 Germans. The diseases that emerged in the trenches were a major killer on both sides. The living conditions led to disease and infection, such as trench foot , lice , typhus , trench fever , and the ' Spanish flu '. At the start of the war, German cruisers were scattered across
7215-580: Is active in Australia's southern and western regions, primarily provides helicopter-based near-shore activities. In Queensland , the Service patrols the southeast coast, performing beach patrols, search & rescue, shark sightings and warnings and assisting Surf Lifesavers in the water and on the beach, utilising (VH-NVG) a Eurocopter EC135 . Rescue swimmers have been used for air-sea rescue work to assist in picking up survivors who are not able to reach
7410-508: Is known, however, that from 1908 to 1913, military spending by the six major European powers increased by over 50% in real terms. The years before 1914 were marked by a series of crises in the Balkans, as other powers sought to benefit from the Ottoman decline. While Pan-Slavic and Orthodox Russia considered itself the protector of Serbia and other Slav states, they preferred the strategically vital Bosporus straits to be controlled by
7605-574: The Schutzkorps was established, and carried out the persecution of Serbs. The assassination initiated the July Crisis, a month of diplomatic manoeuvring between Austria-Hungary, Germany, Russia, France and Britain. Believing that Serbian intelligence helped organise Franz Ferdinand's murder, Austrian officials wanted to use the opportunity to end their interference in Bosnia and saw war as
7800-641: The World War . In August 1914, the magazine The Independent wrote "This is the Great War. It names itself". In October 1914, the Canadian magazine Maclean's similarly wrote, "Some wars name themselves. This is the Great War." Contemporary Europeans also referred to it as " the war to end war " and it was also described as "the war to end all wars" due to their perception of its unparalleled scale, devastation, and loss of life. The first recorded use of
7995-655: The Apollo space missions to pull astronauts and their capsules from the ocean. Sixteen Westland Sea King SAR helicopters were in operation with the Royal Navy at the time of the 1982 Falklands War . SAR helicopters were assigned search and rescue patrols; both the Sea King and Westland Wessex rotorcraft repeatedly succeeded in plucked airmen from the icy waters. Helicopters were also used to transport troops and provide logistical support; on one occasion, they facilitated
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8190-695: The Australian Naval and Military Expeditionary Force landed on the island of New Britain , then part of German New Guinea . On 28 October, the German cruiser SMS Emden sank the Russian cruiser Zhemchug in the Battle of Penang . Japan declared war on Germany before seizing territories in the Pacific, which later became the South Seas Mandate , as well as German Treaty ports on
8385-538: The Felixstowe F.1 . Porte's innovation of the "Felixstowe notch" enabled the craft to overcome suction from the water more quickly and break free for flight much more easily. This made operating the craft far safer and more reliable, although similar devices had been in use in France since 1911. The "notch" breakthrough would soon after evolve into a "step", with the rear section of the lower hull sharply recessed above
8580-683: The German seizure of Crete , each carrying as many as 82 passengers. One Sunderland flew the reconnaissance mission to observe the Italian fleet at anchor in Taranto before the famous Royal Navy Fleet Air Arm 's torpedo attack on 11 November 1940 . The largest flying boat of the war was the Blohm & Voss BV 238 , which was also the heaviest plane to fly during the Second World War and
8775-603: The Gnome Omega –powered Hydravion , a trimaran floatplane. Fabre's first successful take off and landing by a powered floatplane inspired other aviators and he designed floats for several other flyers. The first hydro-aeroplane competition was held in Monaco in March 1912, featuring aircraft using floats from Fabre, Curtiss, Tellier and Farman. This led to the first scheduled seaplane passenger services at Aix-les-Bains , using
8970-589: The Heinkel He 59 , a twin-engine biplane with pontoons . A total of 14 He 59s were sent to be fitted with first aid equipment, electrically heated sleeping bags, artificial respiration equipment, a floor hatch with a telescoping ladder to reach the water, a hoist, signaling devices, and lockers to hold all the gear. The United States Coast Guard acquired its first seaplanes in 1925 at Air Station Gloucester , and used them for coastal patrol as well as single, uncoordinated air rescue units. The air complement grew in
9165-763: The Isle of Wight set up a new aircraft division and produced a flying boat in the United Kingdom. This was displayed at the London Air Show at Olympia in 1913. In that same year, a collaboration between the S. E. Saunders boatyard of East Cowes and the Sopwith Aviation Company produced the "Bat Boat", an aircraft with a consuta laminated hull that could operate from land or on water, which today we call an amphibious aircraft . The "Bat Boat" completed several landings on sea and on land and
9360-675: The Korean War and into the mid-1950s. The SB-17 began serving in Korea, but dropped only a few lifeboats to save several lives before being phased out in late 1951—there were enough SB-29 Super Dumbos and Grumman SA-16A Albatross flying boats to satisfy the need. Other air-sea rescue aircraft used in the Sea of Japan and the Yellow Sea include the PB-1G land-based maritime patrol bomber and
9555-648: The Lohner E in 1914 and the later (1915) Lohner L which was copied widely. In September 1919, British company Supermarine started operating the first flying boat service in the world, from Woolston to Le Havre in France , but it was short-lived. A Curtiss NC-4 became the first aircraft to fly across the Atlantic Ocean in 1919, crossing via the Azores . Of the four that made the attempt, only one completed
9750-668: The PBY Catalina and Short Sunderland played key roles in both the Pacific Theater and the Atlantic of the Second World War. The popularity of flying boats gradually tailed off during the Cold War era, partially because of the difficulty in maintaining operations in inclement weather when sea conditions may easily prevent takeoffs and landings while land based aircraft are unaffected, and investments in airports during
9945-753: The Pacific War to patrol likely areas where American airmen might ditch . The Dumbo would radio the position of any survivors spotted in the water, and it would drop emergency supplies such as an airborne lifeboat, by parachute. A nearby ship or submarine could be requested to come rescue the survivors, or an air-sea rescue station could be signaled to send a rescue boat or flying boat. In the last eight months of World War II , Dumbo operations complemented simultaneous United States Army Air Forces heavy bombing operations against Japanese targets. On any one large-scale bombing mission carried out by Boeing B-29 Superfortresses , at least three submarines were posted along
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#173277595526610140-505: The RNAS . These boats were regarded primarily as seaplane tenders , being primarily tasked with the movement of cargo, munitions and crew from the land to the seaplane. Although the launches and pinnaces were equipped for rescue purposes, they were hindered in this role by the fact that they were hard pressed to make 10 knots (19 kilometres per hour) and were in a bad state of disrepair following their war service. The poor navigation skills of
10335-721: The Rüstungswende or 'armaments turning point', when he switched expenditure from the navy to the army. This decision was not driven by a reduction in political tensions but by German concern over Russia's quick recovery from its defeat in the Russo-Japanese War and subsequent 1905 Russian Revolution . Economic reforms led to a significant post-1908 expansion of railways and transportation infrastructure, particularly in its western border regions. Since Germany and Austria-Hungary relied on faster mobilisation to compensate for their numerical inferiority compared to Russia,
10530-781: The Sikorsky H-5 helicopter, and later the H-19 . Rafts were often dropped which inflated upon impact with the water. Operating in coordination with the U.S. Navy, the USCG painted their air-sea rescue assets white. Shortly after the Korean War, some Douglas C-54 Skymasters were converted to air-sea rescue work and redesignated SC-54; the type quickly replaced all of the remaining Flying Fortresses and Super Fortresses still in service. The SC-54 sometimes carried an airborne lifeboat and could carry more rescue supplies over longer distances. In
10725-403: The United States entered the war on the Allied side following Germany's resumption of unrestricted submarine warfare against Atlantic shipping. Later that year, the Bolsheviks seized power in the Russian October Revolution , and Soviet Russia signed an armistice with the Central Powers in December, followed by a separate peace in March 1918. That month, Germany launched an offensive in
10920-458: The Vietnam War , American naval vessels and aircraft from both the U.S. Navy and the U.S. Air Force participated in air-sea rescue patrols in the Gulf of Tonkin . The helicopter most closely associated with long-range U.S. air-sea rescue operations in Southeast Asia was the Sikorsky S-61R , called the "Pelican" or "Jolly Green Giant", a variation of the SH-3 Sea King . First acquired by the U.S. Navy in 1961 for anti-submarine warfare , variants of
11115-413: The camouflage scheme of their area of operation. Rescue flights were to be protected by fighter aircraft when possible. In October 1940, yellow-painted Sea Rescue Floats were placed by the Germans in waters where air emergencies were likely. The highly visible buoy-type floats held emergency equipment including food, water, blankets and dry clothing, and they attracted distressed airmen from both sides of
11310-423: The hydrophone and depth charges were introduced, destroyers could potentially successfully attack a submerged submarine. Convoys slowed the flow of supplies since ships had to wait as convoys were assembled; the solution was an extensive program of building new freighters. Troopships were too fast for the submarines and did not travel the North Atlantic in convoys. The U-boats sunk more than 5,000 Allied ships, at
11505-442: The tank . After the First Battle of the Marne in September 1914, Allied and German forces unsuccessfully tried to outflank each other, a series of manoeuvres later known as the " Race to the Sea ". By the end of 1914, the opposing forces confronted each other along an uninterrupted line of entrenched positions from the Channel to the Swiss border. Since the Germans were normally able to choose where to stand, they generally held
11700-588: The 1839 Treaty of London did not require it to oppose a German invasion with military force; however, Prime Minister Asquith and his senior Cabinet ministers were already committed to supporting France, the Royal Navy had been mobilised, and public opinion was strongly in favour of intervention. On 31 July, Britain sent notes to Germany and France, asking them to respect Belgian neutrality; France pledged to do so, but Germany did not reply. Aware of German plans to attack through Belgium, French Commander-in-Chief Joseph Joffre asked his government for permission to cross
11895-431: The 1879 Dual Alliance , which became the Triple Alliance when Italy joined in 1882. For Bismarck, the purpose of these agreements was to isolate France by ensuring the three Empires resolve any disputes between themselves. In 1887, Bismarck set up the Reinsurance Treaty , a secret agreement between Germany and Russia to remain neutral if either were attacked by France or Austria-Hungary. For Bismarck, peace with Russia
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#173277595526612090-441: The 1913 Treaty of London , which had created an independent Albania while enlarging the territories of Bulgaria, Serbia, Montenegro and Greece. However, disputes between the victors sparked the 33-day Second Balkan War , when Bulgaria attacked Serbia and Greece on 16 June 1913; it was defeated, losing most of Macedonia to Serbia and Greece, and Southern Dobruja to Romania. The result was that even countries which benefited from
12285-454: The 1930s in Germany. In 1935, Lieutenant Colonel Konrad Goltz of the German Air Force ( Luftwaffe ), a supply officer based at the port of Kiel , was given the task of organizing the Seenotdienst (Sea Rescue Service), an air-sea rescue organization focusing on the North Sea and the Baltic Sea . To this end, Goltz gained coordination with aircraft units of the Kriegsmarine as well as with civilian lifeboat societies. Early in 1939, with
12480-453: The 1930s with the establishment of Air Station Salem and in the 1940s with the first formation of a dedicated U.S. domestic air-sea rescue service on the East Coast in 1944 at Salem. The first multiple air-sea rescue operation occurred on 18 December 1939. A group of 24 British Vickers Wellington medium bombers were frustrated by low clouds and fog in their mission to bomb Wilhelmshaven , and they turned for home. The formation attracted
12675-521: The 1930s, flying boats made it possible to have regular air transport between the U.S. and Europe, opening up new air travel routes to South America, Africa, and Asia. Foynes , Ireland and Botwood , Newfoundland and Labrador were the termini for many early transatlantic flights. In areas where there were no airfields for land-based aircraft, flying boats could stop at small island, river, lake or coastal stations to refuel and resupply. The Pan Am Boeing 314 Clipper planes brought exotic destinations like
12870-399: The 400-nautical-mile (740 km) radius of the Hong Kong Flight Information Region (FIR). Air-sea rescue is provided by its fleet of seven Airbus Helicopters H175 . His Majesty's Coastguard are in charge of maritime search and rescue missions in the United Kingdom. The Coastguard is one of the four emergency services that can be contacted on 999 . Their role is to initiate and coordinate
13065-648: The Argentine side, the Fuerza Aerea Argentina used Bell 212 from the islands and the ad hoc unit Escuadrón Fénix from the mainland. The Ejercito Argentino helicopters, in particular UH-1H , rescued several downed pilots as well, most notably Argentine Naval Aviation Lt Arca by Capt Jorge Svendsen who was decorated with the Valour in Combat Medal for this action. The Chicago Fire Department formed an Air Rescue Helicopter unit in 1965 with two Bell 47Gs at Midway Airport and operated Air Rescue and Sea Rescue as separate units until 1979. Originally based at Midway Airport, CFD Air Rescue operated two Bell 47Gs . Later,
13260-409: The Austrians and Serbs clashed at the battles of the Cer and Kolubara ; over the next two weeks, Austrian attacks were repulsed with heavy losses. As a result, Austria had to keep sizeable forces on the Serbian front, weakening their efforts against Russia. Serbia's victory against Austria-Hungary in the 1914 invasion has been called one of the major upset victories of the twentieth century. In 1915,
13455-593: The Austrians briefly occupied the Serbian capital, Belgrade . A Serbian counter-attack in the Battle of Kolubara succeeded in driving them from the country by the end of 1914. For the first 10 months of 1915, Austria-Hungary used most of its military reserves to fight Italy. German and Austro-Hungarian diplomats scored a coup by persuading Bulgaria to join the attack on Serbia. The Austro-Hungarian provinces of Slovenia , Croatia and Bosnia provided troops for Austria-Hungary. Montenegro allied itself with Serbia. Bulgaria declared war on Serbia on 14 October 1915 and joined in
13650-493: The Balkan Wars, such as Serbia and Greece, felt cheated of their "rightful gains", while for Austria it demonstrated the apparent indifference with which other powers viewed their concerns, including Germany. This complex mix of resentment, nationalism and insecurity helps explain why the pre-1914 Balkans became known as the " powder keg of Europe ". On 28 June 1914, Archduke Franz Ferdinand of Austria , heir presumptive to Emperor Franz Joseph I of Austria , visited Sarajevo ,
13845-557: The CFD flew a Bell UH-1 "Huey" and a Bell 206 L-4. Currently, CFD Air Sea Rescue (ASR) operates two Bell 412EPs , with two pilots and two firefighters working as rescue divers. Additionally, the CFD operates a dive truck "Dive Team 687" and a fast response boat, the "Eugene Blackmon 688." CFD practices tethered, tender-directed dive search patterns, from shore or in-water. CFD ASR responded to 249 water rescue incidents in 2014, and its members logged over 3200 hours of training. In one notable incident from 18 April 2008, CFD ASR members rescued
14040-521: The Central Powers. However, the pro-German King Constantine I dismissed the pro-Allied government of Eleftherios Venizelos before the Allied expeditionary force arrived. The Macedonian front was at first mostly static. French and Serbian forces retook limited areas of Macedonia by recapturing Bitola on 19 November 1916 following the costly Monastir offensive , which brought stabilisation of
14235-593: The Chinese Shandong peninsula at Tsingtao . After Vienna refused to withdraw its cruiser SMS Kaiserin Elisabeth from Tsingtao, Japan declared war on Austria-Hungary, and the ship was sunk in November 1914. Within a few months, Allied forces had seized all German territories in the Pacific, leaving only isolated commerce raiders and a few holdouts in New Guinea. Some of the first clashes of
14430-600: The Curtiss Model E, and soon tested landings on and take-offs from ships using the Curtiss Model D. In Britain, Captain Edward Wakefield and Oscar Gnosspelius began to explore the feasibility of flight from water in 1908. They decided to make use of Windermere in the Lake District , England's largest lake to test their floatplane. The latter's first attempts to fly attracted large crowds, though
14625-518: The Far East within reach of air travelers and came to represent the romance of flight. By 1931, mail from Australia was reaching Britain in just 16 days – less than half the time taken by sea. In that year, government tenders on both sides of the world invited applications to run new passenger and mail services between the ends of the British Empire , and Qantas and IAL were successful with
14820-473: The Felixstowe F.2A, being used as a patrol aircraft, with about 100 being completed by the end of World War I. Another seventy were built, and these were followed by two F.2c, which were built at Felixstowe. The Felixstowe F.5 was intended to combine the good qualities of the F.2 and F.3, with the prototype first flying in May 1918. The prototype showed superior qualities to its predecessors but, to ease production,
15015-623: The German High Seas Fleet was confined to port. German U-boats attempted to cut the supply lines between North America and Britain. The nature of submarine warfare meant that attacks often came without warning, giving the crews of the merchant ships little hope of survival. The United States launched a protest, and Germany changed its rules of engagement. After the sinking of the passenger ship RMS Lusitania in 1915, Germany promised not to target passenger liners, while Britain armed its merchant ships, placing them beyond
15210-640: The German Army increased in size from 1908 to 1914, he changed the allocation of forces between the two wings to 70:30. He also considered Dutch neutrality essential for German trade and cancelled the incursion into the Netherlands, which meant any delays in Belgium threatened the viability of the plan. Historian Richard Holmes argues that these changes meant the right wing was not strong enough to achieve decisive success. The initial German advance in
15405-804: The German right wing would sweep through the Netherlands and Belgium , then swing south, encircling Paris and trapping the French army against the Swiss border. The plan's creator, Alfred von Schlieffen , head of the German General Staff from 1891 to 1906, estimated that this would take six weeks, after which the German army would transfer to the East and defeat the Russians. The plan was substantially modified by his successor, Helmuth von Moltke
15600-541: The Germans bled heavily as well, with anywhere from 700,000 to 975,000 casualties between the two combatants. Verdun became a symbol of French determination and self-sacrifice. The Battle of the Somme was an Anglo-French offensive from July to November 1916. The opening day on 1 July 1916 was the bloodiest single day in the history of the British Army , which suffered 57,500 casualties, including 19,200 dead. As
15795-615: The Harbor Unit respond as well, meeting the helicopter at the incident site to pick up non-critically injured survivors who don't require air evacuation. After the January 2009 ditching of US Airways Flight 1549 in the Hudson River , NYPD air-sea rescue units pulled two survivors from the icy river and applied first aid for hypothermia, and divers swam through the submerged aircraft cabin to make certain all passengers were evacuated. The Westpac Lifesaver Rescue Helicopter Service
15990-538: The IRCG are launching a tender for a future SAR Aviation Contract, The New York Police Department has, since 1986, operated a coordinated air-sea rescue program based at Floyd Bennett Field , where scuba divers were stationed in shifts at a hangar containing helicopter rescue aircraft. The NYPD Aviation Unit operates night vision -equipped Bell 412 helicopters which fly to rescue locations carrying two pilots, one crew chief and two scuba divers. NYPD motor lifeboats from
16185-620: The L series, and progressing with the M series. The Macchi M.5 in particular was extremely manoeuvrable and agile and matched the land-based aircraft it had to fight. 244 were built in total. Towards the end of the First World War, the aircraft were flown by the Italian Navy Aviation, the United States Navy and United States Marine Corps airmen. Ensign Charles Hammann won the first Medal of Honor awarded to
16380-478: The Mark II lifeboat. The Fox boats successfully saved downed aircrew as well as glider infantrymen dropped in the water during Operation Market-Garden . The lifeboats carried emergency equipment, a radio, waterproof suits, rations and medical supplies. Aircraft suitability once again came in for discussion during the war. Ansons and Boulton Paul Defiants were not suitable for ASR operations. The Vickers Warwick
16575-688: The Middle East. In all, 140,000 soldiers served on the Western Front and nearly 700,000 in the Middle East, with 47,746 killed and 65,126 wounded. The suffering engendered by the war, as well as the failure of the British government to grant self-government to India afterward, bred disillusionment, resulting in the campaign for full independence led by Mahatma Gandhi . Pre-war military tactics that had emphasised open warfare and individual riflemen proved obsolete when confronted with conditions prevailing in 1914. Technological advances allowed
16770-691: The Navy, as a member of the Royal Naval Air Service . Appointed Squadron Commander of Royal Navy Air Station Hendon , he soon convinced the Admiralty of the potential of flying boats and was put in charge of the naval air station at Felixstowe in 1915. Porte persuaded the Admiralty to commandeer (and later, purchase) the America and a sister craft from Curtiss. This was followed by an order for 12 more similar aircraft, one Model H-2 and
16965-785: The Ottomans joined the Central Powers in November. Germany's strategy in 1914 was to quickly defeat France, then to transfer its forces to the east, but its advance was halted in September , and by the end of the year the Western Front consisted of a continuous line of trenches stretching from the English Channel to Switzerland. The Eastern Front was more dynamic, but neither side gained a decisive advantage, despite costly offensives. Italy , Bulgaria , Romania , Greece and others joined in from 1915 onward. In April 1917,
17160-613: The Ottomans' territory in the Balkans during the 1912–1913 First Balkan War , much to the surprise of outside observers. The Serbian capture of ports on the Adriatic resulted in partial Austrian mobilisation, starting on 21 November 1912, including units along the Russian border in Galicia . The Russian government decided not to mobilise in response, unprepared to precipitate a war. The Great Powers sought to re-assert control through
17355-569: The River Seine with a towed kite glider on floats. The first of his unpowered flights was 150 yards. He later built a powered floatplane in partnership with Louis Blériot , but the machine was unsuccessful. Other pioneers also attempted to attach floats to aircraft in Britain, Australia, France and the USA. On 28 March 1910, Frenchman Henri Fabre flew the first successful powered floatplane,
17550-613: The Russian Stavka agreed with the French to attack Germany within fifteen days of mobilisation, ten days before the Germans had anticipated, although it meant the two Russian armies that entered East Prussia on 17 August did so without many of their support elements. By the end of 1914, German troops held strong defensive positions inside France, controlled the bulk of France's domestic coalfields, and inflicted 230,000 more casualties than it lost itself. However, communications problems and questionable command decisions cost Germany
17745-562: The Sea King and the Seaguard , were made with a water-resistant hull which allowed them to settle directly onto the water for long enough to effect a rescue. Such amphibious helicopters came to the fore during the 1960s, but have been largely replaced by helicopters unable to land on water, due to high aircraft development costs. Amphibious helicopters paid dividends for rescue personnel who enjoyed greater safety and success during operations. Operations that use non-amphibious helicopters rely to
17940-650: The Serbian retreat toward the Adriatic coast in the Battle of Mojkovac on 6–7 January 1916, but ultimately the Austrians also conquered Montenegro. The surviving Serbian soldiers were evacuated to Greece. After the conquest, Serbia was divided between Austro-Hungary and Bulgaria. In late 1915, a Franco-British force landed at Salonica in Greece to offer assistance and to pressure its government to declare war against
18135-576: The Sikorsky facility in Bridgeport. Sikorsky chief pilot Jimmy Viner, along with USAAF Captain Jack Beighle flew a Sikorsky R-5 (S-48) to lift the two crew members using the hoist and deposit them safely ashore. The first military helicopter air-sea rescue was carried out in 1946 when a Sikorsky S-51 being demonstrated to the U.S. Navy was used in an emergency to pull a downed Navy pilot from
18330-651: The West was very successful. By the end of August, the Allied left, which included the British Expeditionary Force (BEF), was in full retreat , and the French offensive in Alsace-Lorraine was a disastrous failure, with casualties exceeding 260,000. German planning provided broad strategic instructions while allowing army commanders considerable freedom in carrying them out at the front, but von Kluck used this freedom to disobey orders, opening
18525-485: The Younger . Under Schlieffen, 85% of German forces in the west were assigned to the right wing, with the remainder holding along the frontier. By keeping his left-wing deliberately weak, he hoped to lure the French into an offensive into the "lost provinces" of Alsace-Lorraine , which was the strategy envisaged by their Plan XVII . However, Moltke grew concerned that the French might push too hard on his left flank and as
18720-427: The accident. Helicopters can save those stranded among rocks and reefs, where seaplanes are unable to go. Landing facilities for helicopters can be much smaller and cruder than for fixed-wing aircraft. Additionally, the same helicopter that is capable of air-sea rescue can take part in a wide variety of other operations including those on land. Disadvantages include the loud noise causing difficulties in communicating with
18915-446: The aggressor, German Chancellor Bethmann Hollweg delayed the commencement of war preparations until 31 July. That afternoon, the Russian government were handed a note requiring them to "cease all war measures against Germany and Austria-Hungary" within 12 hours. A further German demand for neutrality was refused by the French who ordered general mobilization but delayed declaring war. The German General Staff had long assumed they faced
19110-426: The air route, and Dumbo aircraft sent to patrol the distant waters, and listen for emergency radio transmissions from distressed aircraft. At the final bombing mission on August 14, 1945, 9 land-based Dumbos and 21 flying boats covered a surface and sub-surface force of 14 submarines and 5 rescue ships. Helicopters were first introduced to the role of air-sea rescue in the 1940s. The United States Coast Guard (USCG)
19305-465: The aircraft crashed into the lake. Wakefield's pilot however, taking advantage of a light northerly wind, successfully took off and flew at a height of 50 feet to Ferry Nab, where he made a wide turn and returned for a perfect landing on the lake's surface. In 1913, the Daily Mail newspaper put up a £10,000 prize for the first non-stop aerial crossing of the Atlantic which was soon "enhanced by
19500-400: The aircraft failed to take off and required a re-design of the floats incorporating features of Borwick's successful speed-boat hulls. Meanwhile, Wakefield ordered a floatplane similar to the design of the 1910 Fabre Hydravion. By November 1911, both Gnosspelius and Wakefield had aircraft capable of flight from water and awaited suitable weather conditions. Gnosspelius's flight was short-lived as
19695-474: The attack by the Austro-Hungarian army under Mackensen's army of 250,000 that was already underway. Serbia was conquered in a little more than a month, as the Central Powers, now including Bulgaria, sent in 600,000 troops in total. The Serbian army, fighting on two fronts and facing certain defeat, retreated into northern Albania . The Serbs suffered defeat in the Battle of Kosovo . Montenegro covered
19890-555: The best flying boat of the conflict, the Kawanishi H8K . Its design was based upon its immediate predecessor, the Kawanishi H6K , but was a considerably larger and longer-ranged aircraft designed at the request of the Navy just prior to the outbreak of war. On the night of 4 March 1942, two H8Ks conducted the second raid on Pearl Harbor , refuelling en route by submarine at French Frigate Shoals in order to achieve
20085-543: The best way of achieving this. However, the Foreign Ministry had no solid proof of Serbian involvement. On 23 July, Austria delivered an ultimatum to Serbia, listing ten demands made intentionally unacceptable to provide an excuse for starting hostilities. Serbia ordered general mobilization on 25 July, but accepted all the terms, except for those empowering Austrian representatives to suppress "subversive elements" inside Serbia, and take part in
20280-483: The border and pre-empt such a move. To avoid violating Belgian neutrality, he was told any advance could come only after a German invasion. Instead, the French cabinet ordered its Army to withdraw 10 km behind the German frontier, to avoid provoking war. On 2 August, Germany occupied Luxembourg and exchanged fire with French units when German patrols entered French territory; on 3 August, they declared war on France and demanded free passage across Belgium, which
20475-486: The campaign saw the first use of anti-aircraft warfare after an Austrian plane was shot down with ground-to-air fire, as well as the first medical evacuation by the Serbian army. Upon mobilisation, in accordance with the Schlieffen Plan , 80% of the German Army was located on the Western Front, with the remainder acting as a screening force in the East. Rather than a direct attack across their shared frontier,
20670-649: The capital of the recently annexed Bosnia and Herzegovina . Cvjetko Popović , Gavrilo Princip , Nedeljko Čabrinović , Trifko Grabež , Vaso Čubrilović ( Bosnian Serbs ) and Muhamed Mehmedbašić (from the Bosniaks community), from the movement known as Young Bosnia , took up positions along the Archduke's motorcade route, to assassinate him. Supplied with arms by extremists within the Serbian Black Hand intelligence organisation, they hoped his death would free Bosnia from Austrian rule. Čabrinović threw
20865-578: The chance of a decisive outcome, while it had failed to achieve the primary objective of avoiding a long, two-front war. As was apparent to several German leaders, this amounted to a strategic defeat; shortly after the First Battle of the Marne , Crown Prince Wilhelm told an American reporter "We have lost the war. It will go on for a long time but lost it is already." On 30 August 1914, New Zealand occupied German Samoa (now Samoa ). On 11 September,
21060-604: The change being made official on 1 April 1940. BOAC continued to operate flying boat services from the (slightly) safer confines of Poole Harbour during wartime, returning to Southampton in 1947. When Italy entered the war in June 1940, the Mediterranean was closed to allied planes, and BOAC and Qantas operated the Horseshoe Route between Durban and Sydney using Short Empire flying boats. The Martin Company produced
21255-900: The conflict that eased the introduction of larger, and more efficient, land-based airliners. Despite being largely overshadowed, limited use of the type continued with some operators, such as in the case of the Shin Meiwa US-1A and the Martin JRM Mars . In the 21st century, flying boats maintain a few niche uses, such as dropping water on forest fires , air transport around archipelagos, and access to undeveloped areas. Many modern seaplane variants, whether float or flying boat types, are convertible amphibious aircraft where either landing gear or flotation modes may be used to land and take off. The quest for an aircraft that could take off or land from water began with float planes, which are not flying boats. The Frenchman Alphonse Pénaud filed
21450-404: The correct location. The first attempts at an airplane rescuing a downed flyer at sea took place in August 1911, during the 1911 Chicago International Aviation Meet , when, in separate incidents, aviators St. Croix Johnstone and René Simon crashed into Lake Michigan . In both cases, pilot Hugh Robinson , in a Curtiss hydroplane, went out to try to rescue them, but in the case of Johnstone it
21645-469: The cost of 199 submarines. World War I also saw the first use of aircraft carriers in combat, with HMS Furious launching Sopwith Camels in a successful raid against the Zeppelin hangars at Tondern in July 1918, as well as blimps for antisubmarine patrol. Faced with Russia in the east, Austria-Hungary could spare only one-third of its army to attack Serbia. After suffering heavy losses,
21840-522: The creation of new independent states, including Poland , Finland , the Baltic states , Czechoslovakia , and Yugoslavia . The League of Nations was established to maintain world peace, but its failure to manage instability during the interwar period contributed to the outbreak of World War II in 1939. Before World War II , the events of 1914–1918 were generally known as the Great War or simply
22035-449: The creation of strong defensive systems largely impervious to massed infantry advances, such as barbed wire , machine guns and above all far more powerful artillery , which dominated the battlefield and made crossing open ground extremely difficult. Both sides struggled to develop tactics for breaching entrenched positions without heavy casualties. In time, technology enabled the production of new offensive weapons, such as gas warfare and
22230-965: The crowds listened to music and drank wine, as if nothing had happened." Nevertheless, the impact of the murder of the heir to the throne was significant, and has been described by historian Christopher Clark as a "9/11 effect, a terrorist event charged with historic meaning, transforming the political chemistry in Vienna". Austro-Hungarian authorities encouraged subsequent anti-Serb riots in Sarajevo . Violent actions against ethnic Serbs were also organised outside Sarajevo, in other cities in Austro-Hungarian-controlled Bosnia and Herzegovina, Croatia and Slovenia. Austro-Hungarian authorities in Bosnia and Herzegovina imprisoned approximately 5,500 prominent Serbs, 700 to 2,200 of whom died in prison. A further 460 Serbs were sentenced to death. A predominantly Bosniak special militia known as
22425-579: The deployment of rescue swimmers , who have proved invaluable for recovering incapacitated personnel from the sea. Air-sea rescue operations have been prominent in several major conflicts, such as the Korean War , Vietnam War , and Falklands War . By the start of the twenty-first century, numerous civilian organizations have involved themselves in providing air-sea rescue services, in some circumstances taking over this function from incumbent military operators. Initial air-sea rescue operations were performed either by flying boats or floatplanes ; these were
22620-410: The distinction of being the first rescued and rescuer in an airship life-saving feat." Nonetheless, Robinson's role has been termed by one book as "the first airplane rescue at sea by another airplane". Still other books have implied or stated that Robinson did in fact pick up Simon, but this does not align with contemporary accounts. Dedicated air-sea rescue units were not organized by any nation until
22815-731: The end of World War I . Some rescues were performed, however, by individuals and groups acting on their own initiative, such as the United States Navy Reserve pilot Ensign Charles Hammann who, during the Adriatic Campaign , rescued a fellow aviator adrift in the Adriatic Sea by landing on the water in his seaplane. When the Marine Craft Section of the newly formed RAF , was formed in 1918, it inherited over 200 operational vessels, from
23010-672: The end of the conflict, the Navy opted to scaled back their order, buying only the five aircraft. The five Mars were completed, and the last delivered in 1947. The U.S. used several 4-engine flying boats during World War II, including those that had been operating as civilian airliners. This included five Boeing B-314 Clippers , four more as the C-98s; two Martin M-130 Clippers ,a Martin XPB2M-1/XPB2M-1R prototype, and one JRM-1 Mars ; three Sikorsky VS-44s (JR2S-1). However,
23205-790: The energetic attention of Luftwaffe pilots flying Bf 109 fighter aircraft as well as Bf 110 heavy fighters , and more than half of the Wellingtons went down in the North Sea. German Seenotdienst rescue boats based at Hörnum worked with He 59s to save some twenty British airmen from the icy water. In 1940, the Seenotdienst added bases in Denmark , the Netherlands and France . The Heinkel He 59s were painted white in June, with red crosses to indicate emergency services. A few French seaplanes were modified for rescue and attached to
23400-695: The expansion of the French colonial empire . In 1873, Bismarck negotiated the League of the Three Emperors , which included Austria-Hungary , Russia and Germany. After the 1877–1878 Russo-Turkish War , the League was dissolved due to Austrian concerns over the expansion of Russian influence in the Balkans , an area they considered to be of vital strategic interest. Germany and Austria-Hungary then formed
23595-632: The final Porte hull designs and powered by American Liberty engines . Meanwhile, the pioneering flying boat designs of François Denhaut had been steadily developed by the Franco-British Aviation Company into a range of practical craft. Smaller than the Felixstowes, several thousand FBAs served with almost all of the Allied forces as reconnaissance craft, patrolling the North Sea, Atlantic and Mediterranean oceans. In Italy, several flying boats were developed, starting with
23790-531: The first air-dropped lifeboat; a 32-foot (10 m) wooden canoe-shaped boat designed in 1943 by Uffa Fox was to be dropped by RAF Avro Lancaster heavy bombers for the rescue of aircrew downed in the Channel . The lifeboat was dropped from a height of 700 feet (210 m), and its descent to the water was slowed by six parachutes. It was balanced so that it would right itself if it overturned—all subsequent airborne lifeboats were given this feature. When it hit
23985-617: The first air-sea rescue was set up (the Directorate of Air Sea Rescue Services). The service the aircraft used were diverse. Westland Lysanders were used to scouting the coastlines, while the Supermarine Walrus was planned to be used for long-term use. By June 1941 rescue from the seas had increased to 35 percent. The Air Ministry decided the service could do better. It was merged with another Directorate, Aircraft Safety. On 23 September 1941 Air Marshal John Salmond took over
24180-449: The first patent for a flying machine with a boat hull and retractable landing gear in 1876 but failed to build one. Austrian Wilhelm Kress is credited by some with attempting to build the first successful seaplane Drachenflieger , a floatplane , in 1898, although its two 30 hp Daimler engines were inadequate for take-off and it later sank when one of its two floats collapsed. On 6 June 1905, Gabriel Voisin took off and landed on
24375-400: The first time on the Western Front. Several types of gas soon became widely used by both sides and though it never proved a decisive, battle-winning weapon, it became one of the most feared and best-remembered horrors of the war. In February 1916, the Germans attacked French defensive positions at the Battle of Verdun , lasting until December 1916. Casualties were greater for the French, but
24570-528: The flight plan; the aircraft was a conventional biplane design with two-bay, unstaggered wings of unequal span with two pusher inline engines mounted side-by-side above the fuselage in the interplane gap. Wingtip pontoons were attached directly below the lower wings near their tips. The design (later developed into the Model H ), resembled Curtiss' earlier flying boats, but was built considerably larger so it could carry enough fuel to cover 1,100 mi (1,800 km). The three crew members were accommodated in
24765-449: The flight. Before the development of highly reliable aircraft, the ability to land on water was a desirable safety feature for transoceanic travel. In 1923, the first successful commercial flying boat service was introduced with flights to and from the Channel Islands . The British aviation industry was experiencing rapid growth. The Government decided that nationalization was necessary and ordered five aviation companies to merge to form
24960-407: The following decades. By the start of World War II , various nations were operating capable air-sea rescue units that operated a combination of amphibious and land-based fixed wing aircraft. Amid World War II, a major innovation was introduced in the form of the helicopter , which provided hover capabilities that were revolutionary for air-sea rescue. The first military helicopter air-sea rescue, by
25155-417: The forward lower hull section, and that characteristic became a feature of both flying boat hulls and floatplane floats. The resulting aircraft would be large enough to carry sufficient fuel to fly long distances and could berth alongside ships to take on more fuel. Porte then designed a similar hull for the larger Curtiss H-12 flying boat which, while larger and more capable than the H-4s, shared failings of
25350-486: The front. Serbian and French troops finally made a breakthrough in September 1918 in the Vardar offensive , after most German and Austro-Hungarian troops had been withdrawn. The Bulgarians were defeated at the Battle of Dobro Pole , and by 25 September British and French troops had crossed the border into Bulgaria proper as the Bulgarian army collapsed. Bulgaria capitulated four days later, on 29 September 1918. The German high command responded by despatching troops to hold
25545-408: The globe, some of which were subsequently used to attack Allied merchant shipping . These were systematically hunted down by the Royal Navy, though not before causing considerable damage. One of the most successful was the SMS Emden , part of the German East Asia Squadron stationed at Qingdao , which seized or sank 15 merchantmen, a Russian cruiser and a French destroyer. Most of the squadron
25740-419: The grounds that rescue aircraft were part of the Geneva Convention agreement stipulating that belligerents must respect each other's "mobile sanitary formations" such as field ambulances and hospital ships . Churchill argued that rescue aircraft were not anticipated by the treaty, and were not covered. British attacks on He 59s increased. The Seenotdienst ordered the rescue aircraft armed as well as painted in
25935-428: The growing probability of war against Great Britain, the Luftwaffe carried out large-scale rescue exercises over water. Land-based German bombers used for search duties proved inadequate in terms of range, thus new bomber air bases were constructed along the coast to facilitate an air net over the Baltic and North seas. Following this, the Luftwaffe determined to procure a purpose-built air-sea rescue seaplane, choosing
26130-411: The helicopter were quickly utilized for many duties including rescue, and were operated as well by the United States Air Force (USAF) which developed an in-flight refueling system. In 1970, USAF Air Rescue and Recovery Service (ARRS) Sea Kings performed a Transatlantic flight from the U.S. to France using such refueling methods. At the same time as the Vietnam War, U.S. Navy helicopters were used during
26325-421: The high ground, while their trenches tended to be better built; those constructed by the French and English were initially considered "temporary", only needed until an offensive would destroy the German defences. Both sides tried to break the stalemate using scientific and technological advances. On 22 April 1915, at the Second Battle of Ypres , the Germans (violating the Hague Convention ) used chlorine gas for
26520-451: The initiative and undertook to purchase six of the new Short S23 "C" class or "Empire" flying boats as well. Being ordered from aviation manufacturer Short Brothers , the Empire was reportedly hailed as being "one of the world's boldest experiments in aviation", while early sceptics referred to the order less favourably as being a 'gamble'. IAL were so impressed by the Empire that it placed a follow-on order for another 11; when combined with
26715-438: The introduction of fast motorboat launches as rescue boats. Lawrence had experience using this type of vessel, having assisted with the 1929 Schneider Trophy race while at the helm of a Biscayne Baby, a fast boat when the temperamental engines were running. Meanwhile, Hubert Scott-Paine , the designer of the record breaking Miss Britain III and Miss England boats and founder of the British Power Boat Company (BPBC), made
26910-422: The investigation and trial of Serbians linked to the assassination. Claiming this amounted to rejection, Austria broke off diplomatic relations and ordered partial mobilisation the next day; on 28 July, they declared war on Serbia and began shelling Belgrade . Russia ordered general mobilization in support of Serbia on 30 July. Anxious to ensure backing from the SPD political opposition by presenting Russia as
27105-430: The largest aircraft built and flown by any of the Axis Powers . Only the first prototype ever flew, commencing flight trials in April 1944. Months later, it was strafed and partially sunk while moored on Lake Schaal , to the east of Hamburg ; it never returned to flight, instead being intentionally sunk in deep water after the end of the conflict. The Imperial Japanese Navy operated what has been often described as
27300-427: The largest aircraft of the first half of the 20th century, exceeded in size only by bombers developed during the Second World War . Their advantage lay in using water instead of expensive land-based runways, making them the basis for international airlines in the interwar period. They were also commonly used as maritime patrol aircraft and air-sea rescue , particularly during times of conflict. Flying boats such as
27495-424: The launch to communicate with the Station and the search aircraft, allowing for an efficient system of contact to be maintained. The Type Two 63 ft HSL was designed in 1937 by Hubert Scott-Paine; 63 foot long and known as the Whaleback from the distinctive curve to its deck. This was the main high speed launch class ship used during the Second World War and was instrumental in the rescue of Allied aircrew from
27690-666: The long-standing balance of power in Europe, as well as economic competition between nations triggered by industrialisation and imperialism . Growing tensions between the great powers and in the Balkans reached a breaking point on 28 June 1914, when a Bosnian Serb named Gavrilo Princip assassinated Archduke Franz Ferdinand , heir to the Austro-Hungarian throne. Austria-Hungary held Serbia responsible, and declared war on 28 July. After Russia mobilised in Serbia's defence, Germany declared war on Russia and France , who had an alliance . The United Kingdom entered after Germany invaded Belgium , whose neutrality it guaranteed, and
27885-403: The main 4-engined flying boat of the U.S. forces was the PB2Y Coronado , of which nearly 220 were used in several versions:maritime patrol, bombing, medical/hospital transport, and for regular cargo; it also served with British forces in the Battle for the Atlantic . World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War ,
28080-430: The month, June 1944, 355 were saved by ASR units of Coastal Command. In all, 10,663 persons were rescued by Coastal Command in ASR operations. Of this total, 5,721 were Allied aircrew, 277 enemy aircrew, and 4,665 non-aircrew. By the end of the war, British ASR had saved over 13,000 lives and was one of the largest such organisations in the world. In the Pacific Ocean theater , the first purposely assigned rescue aircraft,
28275-444: The most notable of these flights was a 43,500 km (27,000 mi) expedition conducted during 1927 and 1928; it was carried out by four Southamptons of the Far East Flight , setting out from Felixstowe via the Mediterranean and India to Singapore . Both the RAF and Supermarine acquired considerable acclaim from these flights, as well as proving that flying boats had evolved to become reliable means of long-distance transport. In
28470-448: The necessary range; poor visibility caused this attack on Pearl Harbor to fail to accomplish any significant damage. An improved H8K2 variant of the type, featuring extremely heavy defensive armament, was also introduced. In November 1939, IAL was restructured into three separate companies: British European Airways , British Overseas Airways Corporation (BOAC), and British South American Airways (which merged with BOAC in 1949), with
28665-409: The ocean, even to neutral ships. Since there was limited response to this tactic, Germany expected a similar response to its unrestricted submarine warfare. The Battle of Jutland in May/June 1916 was the only full-scale clash of battleships during the war, and one of the largest in history. The clash was indecisive, though the Germans inflicted more damage than they received; thereafter the bulk of
28860-486: The ocean. The first peacetime air-sea rescue squadron exclusively using helicopters was No. 275 Squadron RAF re-organized in 1953 at Linton-on-Ouse . The unit painted their Bristol Sycamore aircraft all yellow, with lettering on the side reading "RESCUE"—a paint scheme that has continued to the present. In the 1950s, some models of helicopter such as the Bell 47 and 48 were fitted with pontoons so that they could rest on both water and land. Other helicopters, such as
29055-481: The organisation. In October 1941 No. 275 Squadron RAF and No. 278 Squadron RAF were given to ASR work. This was supported by two squadrons from Coastal Command equipped with Hudsons. No. 16 Group was authorised to create No. 279 Squadron RAF on 24 October to act as a specialised ASR squadron. No. 280 Squadron RAF was created on 28 November 1941 and was given Anson aircraft in place of Hudsons, as they were desperately needed for A/S operations. The British developed
29250-418: The organization. In response to the heavy toll of German air action against Great Britain, Adolf Galland recommended that German pilots in trouble over the ocean make an emergency water landing in their aircraft instead of bailing out and parachuting down. The aircraft each carried an inflatable rubber raft which would help the airmen avoid hypothermia from continued immersion in the cold water, and increase
29445-430: The original order for 28 flying boats, this was the largest single order to have ever been placed for a British civil aircraft at that time. Delivering the mail as quickly as possible generated a lot of competition and some innovative designs. One variant of the Short Empire flying boats was the strange-looking " Maia and Mercury ". It was a four-engined floatplane "Mercury" (the winged messenger) fixed on top of "Maia",
29640-424: The over-water sectors of the Deutsche Luft Hansa South Atlantic Airmail service. The military value of flying boats was well recognized, and every country bordering on water operated them in a military capacity at the outbreak of the Second World War . Flying boats such as the PBM Mariner patrol bomber, PBY Catalina , Short Sunderland , and Grumman Goose were procured in large numbers. The Sunderland, which
29835-510: The pioneering approach used to pick up aviators or sailors who were has come into difficulties in the water. Any other aircraft design posed the additional danger of ditching in the water and requiring immediate rescue, while seaplanes could land on the water in an emergency and wait for rescue. Qualities such as their long range, endurance, and the ability to stay on station for long periods of time were commonly viewed as essential naval aviation requirements for rescue aircraft. Robust radio equipment
30030-499: The position and direction of British convoys—British officials determined that this constituted military reconnaissance , not rescue work. The Air Ministry issued Bulletin 1254 indicating that all enemy air-sea rescue aircraft were to be destroyed if encountered. Winston Churchill later wrote "We did not recognise this means of rescuing enemy pilots who had been shot down in action, in order that they might come and bomb our civil population again." Germany protested against this order on
30225-502: The post-war crews also restricted the scope of operations to a purely inshore one. T. E. Lawrence , better known as Lawrence of Arabia, joined the RAF in 1929, working at the flying boat station, Mount Batten in Plymouth Sound . He witnessed first-hand the deficiencies in the rescue system when a seaplane tender , despatched to save the survivors of an airplane crash in the Solent , arrived too late to save them before they drowned. He immediately began to press his commanding officer for
30420-516: The production version was modified to make extensive use of components from the F.3, which resulted in lower performance than the F.2A or F.3. The Felixstowe flying boats were extensively employed by the Royal Navy for coastal patrols, including searching for German U-boats . In 1918 they were towed on lighters towards the northern German ports to extend their range; on 4 June 1918 this resulted in three F.2As engaging with ten German seaplanes, shooting down two confirmed and four probables at no loss. As
30615-681: The protection of the " cruiser rules ", which demanded warning and movement of crews to "a place of safety" (a standard that lifeboats did not meet). Finally, in early 1917, Germany adopted a policy of unrestricted submarine warfare , realising the Americans would eventually enter the war. Germany sought to strangle Allied sea lanes before the United States could transport a large army overseas, but, after initial successes, eventually failed to do so. The U-boat threat lessened in 1917, when merchant ships began travelling in convoys , escorted by destroyers . This tactic made it difficult for U-boats to find targets, which significantly lessened losses; after
30810-420: The prototype XPB2M Mars based on their PBM Mariner patrol bomber, with flight tests between 1941 and 1943. The Mars was converted by the Navy into a transport aircraft designated the XPB2M-1R. Satisfied with the performance, 20 of the modified JRM-1 Mars were ordered. The first of the five production Mars flying boats entered service ferrying cargo to Hawaii and the Pacific Islands on 23 January 1944. Following
31005-453: The remaining as Model H-4 's. Four examples of the latter were assembled in the UK by Saunders . All of these were similar to the design of the America and, indeed, were all referred to as America s in Royal Navy service. The engines, however, were changed from the under-powered 160 hp Curtiss engines to 250 hp Rolls-Royce Falcon engines. The initial batch was followed by an order for 50 more (totalling 64 Americas overall during
31200-439: The rescue craft, especially those incapacitated by exposure to cold water. Since the mid-1980s when standards were set down for their instruction and implementation, rescue swimmers have deployed from rescue helicopters or rescue boats and have been trained to extricate downed airmen from fouled parachute lines and ejection seats. Rescue swimmers must meet a number of difficult requirements: their physical conditioning must be kept at
31395-410: The rescue of Special Air Service (SAS) troops trapped on a glacier in heavy wind and snow conditions. Two Royal Air Force SAR helicopters of No. 1564 Flight on detached duty continued to provide cover for the Falkland Islands until 2016. Since official records began in 1983, the Falklands SAR mission had reportedly responded to 1,305 callouts and given life-saving assistance to 1,883 people. On
31590-493: The sea after they were shot down. The failure of the Marine Craft Section during the Battle of Britain led to the creation of the Air Sea Rescue Services which with the motto 'the sea shall not have them', was created to coordinate at sea rescue with its own air sea rescue squadrons, Marine Branch and Royal Navy vessels, and Coastal Command flying boats. The principles of coordinating small surface boat rescue efforts with direction and assistance from air units were developed in
31785-414: The searches. Lifeboats are provided by volunteer agencies, most often by the Royal National Lifeboat Institution . Aircraft for an air-sea rescue were originally provided by the Royal Navy and Royal Air Force . Under the programme UK-SAR , they are now operated under contract by Bristow Helicopters . The Irish Coast Guard (IRCG) has responsibility for the Irish Search and Rescue Region. It operates
31980-406: The sides of the bow to add hydrodynamic lift, but soon replaced these with sponsons , a type of underwater pontoon mounted in pairs on either side of a hull. These sponsons (or their engineering equivalents) and the flared, notched hull would remain a prominent feature of flying boat hull design in the decades to follow. With the problem resolved, preparations for the crossing resumed. While the craft
32175-453: The state-owned Imperial Airways of London (IAL). IAL became the international flag-carrying British airline, providing flying boat passenger and mail transport links between Britain and South Africa using aircraft such as the Short S.8 Calcutta . During the 1920s, the Royal Air Force (RAF) Far East flight performed a series of "showing the flag" long-distance formation flights using the newly developed Supermarine Southampton . Perhaps
32370-416: The successful Curtiss Model D land-plane, which used a larger central float and sponsons. Combining floats with wheels, he made the first amphibian flights in February 1911 and was awarded the first Collier Trophy for US flight achievement. From 1912 his experiments resulted in the 1913 Model E and Model F , which he called "flying-boats". In February 1911, the United States Navy took delivery of
32565-619: The survivors and the strong downdraft that the hovering helicopter creates which increases wind chill danger for already-soaked and hypothermic patients. Helicopters also tend to have limited range and endurance. Toward the end of World War II, several B-29 bombers on each large-scale bombing mission were emptied of ammunition, filled with rescue supplies and rotated through Super Dumbo patrol duty as their squadron mates lumbered off filled with bombs. Following that conflict, 16 B-29 bombers were converted to full-time air–sea rescue duty and redesignated SB-29 Super Dumbo . The SB-29 served throughout
32760-415: The term First World War was in September 1914 by German biologist and philosopher Ernst Haeckel who stated, "There is no doubt that the course and character of the feared 'European War' ... will become the first world war in the full sense of the word." For much of the 19th century, the major European powers maintained a tenuous balance of power , known as the Concert of Europe . After 1848, this
32955-584: The threat posed by the closing of this gap was more important than competing with the Royal Navy. After Germany expanded its standing army by 170,000 troops in 1913, France extended compulsory military service from two to three years; similar measures were taken by the Balkan powers and Italy, which led to increased expenditure by the Ottomans and Austria-Hungary. Absolute figures are difficult to calculate due to differences in categorising expenditure since they often omit civilian infrastructure projects like railways which had logistical importance and military use. It
33150-496: The time available for rescue. British fighters such the Supermarine Spitfire and the Hawker Hurricane did not carry inflatable rafts, only lifejackets which were little help against the cold. In July 1940, a white-painted He 59 operating near Deal, Kent was shot down and the crew taken captive because it was sharing the air with 12 Bf 109 fighters and because the British were wary of Luftwaffe aircraft dropping spies and saboteurs. The German pilot's log showed that he had noted
33345-424: The vast distances of the Pacific Theater and the Atlantic , locating enemy vessels and sinking numerous submarines. In May 1941, the German battleship Bismarck was discovered by a PBY Catalina flying out of Castle Archdale Flying boat base , Lower Lough Erne , Northern Ireland. A flight of Catalinas spotted the Japanese fleet approaching Midway Island , beginning the Battle of Midway . On 3 April 1940,
33540-429: The war ended with the Armistice of 11 November 1918 . The Paris Peace Conference of 1919–1920 imposed settlements on the defeated powers, most notably the Treaty of Versailles , by which Germany lost significant territories, was disarmed, and was required to pay large war reparations to the Allies. The dissolution of the Russian, German, Austro-Hungarian, and Ottoman Empires redrew national boundaries and resulted in
33735-413: The war involved British, French, and German colonial forces in Africa. On 6–7 August, French and British troops invaded the German protectorates of Togoland and Kamerun . On 10 August, German forces in South-West Africa attacked South Africa; sporadic and fierce fighting continued for the rest of the war. The German colonial forces in German East Africa , led by Colonel Paul von Lettow-Vorbeck , fought
33930-566: The war). Porte also acquired permission to modify and experiment with the Curtiss aircraft. The Curtiss H-4s were soon found to have a number of problems; they were underpowered, their hulls were too weak for sustained operations and they had poor handling characteristics when afloat or taking off. One flying boat pilot, Major Theodore Douglas Hallam, wrote that they were "comic machines, weighing well under two tons; with two comic engines giving, when they functioned, 180 horsepower; and comic control, being nose heavy with engines on and tail heavy in
34125-438: The war. Both German and British rescue units checked the floats from time to time, picking up any airmen they found, though enemy airmen were immediately made prisoner of war . Prior to the Second World War, there was still no fully functional coordinated British air-sea rescue organisation for rescuing aircrew from the sea. The aircrew relied on the High Speed Launches (HSL) established at flying boat bases. On 14 January 1941,
34320-529: The water the parachutes were jettisoned and rockets launched 300 ft (90 m) lifelines. Coamings were inflated on the descent to give it self-righting. Fox's airborne lifeboat weighed 1,700 pounds (770 kg) and included two 4-horsepower (3 kW) motors—sufficient to make about 6 knots—augmented by a mast and sails along with an instruction book to teach aircrew the rudiments of sailing. The lifeboats were first carried by Lockheed Hudson aircraft in February 1943. Later, Vickers Warwick bombers carried
34515-418: The west , which despite initial successes left the German Army exhausted and demoralised. A successful Allied counter-offensive from August 1918 caused a collapse of the German front line. By early November, Bulgaria, the Ottoman Empire and Austria-Hungary had each signed armistices with the Allies, leaving Germany isolated. Facing a revolution at home , Kaiser Wilhelm II abdicated on 9 November, and
34710-410: Was "easily the greatest commercial success in the history of marine aviation". Over 250 were built in Italy, Spain, Japan, The Netherlands and Germany. Numerous airlines operated the Dornier Wal on scheduled passenger and mail services. Wals were used by explorers, for a number of pioneering flights, and by the military in many countries. Though having first flown in 1922, from 1934 to 1938 Wals operated
34905-410: Was a global conflict between two coalitions: the Allies (or Entente) and the Central Powers . Fighting took place mainly in Europe and the Middle East , as well as in parts of Africa and the Asia-Pacific , and in Europe was characterised by trench warfare ; the widespread use of artillery , machine guns, and chemical weapons (gas); and the introductions of tanks and aircraft . World War I
35100-442: Was adopted. Sir Alan Cobham devised a method of in-flight refuelling in the 1930s. In the air, the Short Empire could be loaded with more fuel than it could take off with. Short Empire flying boats serving the trans-Atlantic crossing were refueled over Foynes; with the extra fuel load, they could make a direct trans-Atlantic flight. A Handley Page H.P.54 Harrow was used as the fuel tanker. The German Dornier Do X flying boat
35295-425: Was an operational success and was followed up with the MkI and MkIA tenders, powered with Perkins Engines . These formed the mainstay of the Marine Section's rescue launches all the way through to the Second World War . Nine of these boats were ordered for use by the RAF Marine service by 1932. During 1935, larger 37 ft (11.3 m) boats were also ordered; these were fitted with wireless systems that allowed
35490-403: Was challenged by Britain's withdrawal into so-called splendid isolation , the decline of the Ottoman Empire , New Imperialism , and the rise of Prussia under Otto von Bismarck . Victory in the 1870–1871 Franco-Prussian War allowed Bismarck to consolidate a German Empire . Post-1871, the primary aim of French policy was to avenge this defeat, but by the early 1890s, this had switched to
35685-479: Was developed in parallel to the civilian Empire flying boat, was one of the most powerful and widely used flying boats throughout the conflict, while Catalinas were one of the most produced ASW of the war, with over 2,661 being produced in the US alone. Flying boats were commonly utilized to conduct various tasks, from anti-submarine patrol to air-sea rescue and gunfire spotting for battleships. They would recover downed airmen and operate as scout aircraft over
35880-406: Was duly awarded the Mortimer Singer Prize . It was the first all-British aeroplane capable of making six return flights over five miles within five hours. In the U.S. Wanamaker's commission built on Glen Curtiss' previous development and experience with the Model F for the U.S. Navy which rapidly resulted in the America , designed under Porte's supervision following his study and rearrangement of
36075-479: Was earmarked for the main ASR aircraft. Four 20-aircraft squadrons with specialised ASR conversion were to be made available by the spring, 1943. While development was slow, the effort paid off. In May 1943, 156 men of Bomber Command were rescued from the sea by No. 279 Squadron alone. By the end of 1943 Coastal Command had rescued 1,684 aircrew out of 5,466 presumed to have ditched in the sea. On D-Day , 6 June 1944, 163 aircrew and 60 other personnel were rescued. During
36270-400: Was found to handle "heavily" on takeoff, and required rather longer take-off distances than expected, the full moon on 5 August 1914 was selected for the trans-Atlantic flight; Porte was to pilot the America with George Hallett as co-pilot and mechanic. Curtiss and Porte's plans were interrupted by the outbreak of the First World War. Porte sailed for England on 4 August 1914 and rejoined
36465-414: Was initiated at Coast Guard Station Brooklyn in New York. In 1942, Royal Air Force and Royal Navy fliers trained in Brooklyn after which the British bought a large number of "hoverflies" from Sikorsky to re-organize 705 Naval Air Squadron . The first hoist lift rescue occurred on 29 November 1945, when a barge ran aground at Penfield Reef, off Fairfield, Connecticut, during heavy weather, very near to
36660-429: Was necessary for contact with land and ocean surface forces. Training and weather accidents could require an aircrew to be rescued, and seaplanes were occasionally used for that purpose. The limitation was that if the water's surface were too rough, the aircraft would not be able to land. The most that could be done was to drop emergency supplies to the survivors, or to signal surface ships or rescue boats to guide them to
36855-449: Was noticeably different from its UK and U.S.-built counterparts. It had wing-like protrusions from the fuselage, called sponsons , to stabilize it on the water without the need for wing-mounted outboard floats. This feature was pioneered by Claudius Dornier during the First World War on his Dornier Rs. I giant flying boat, and perfected on the Dornier Wal in 1924. The enormous Do X was powered by 12 engines and once carried 170 persons as
37050-415: Was one of the deadliest conflicts in history , resulting in an estimated 10 million military dead and more than 20 million wounded , plus some 10 million civilian dead from causes including genocide . The movement of large numbers of people was a major factor in the deadly Spanish flu pandemic. The causes of World War I included the rise of Germany and decline of the Ottoman Empire , which disturbed
37245-654: Was refused. Early on the morning of 4 August, the Germans invaded, and Albert I of Belgium called for assistance under the Treaty of London . Britain sent Germany an ultimatum demanding they withdraw from Belgium; when this expired at midnight, without a response, the two empires were at war. Germany promised to support Austria-Hungary's invasion of Serbia, but interpretations of what this meant differed. Previously tested deployment plans had been replaced early in 1914, but those had never been tested in exercises. Austro-Hungarian leaders believed Germany would cover its northern flank against Russia. Beginning on 12 August,
37440-600: Was returning to Germany when it sank two British armoured cruisers at the Battle of Coronel in November 1914, before being virtually destroyed at the Battle of the Falkland Islands in December. The SMS Dresden escaped with a few auxiliaries, but after the Battle of Más a Tierra , these too were either destroyed or interned. Soon after the outbreak of hostilities, Britain began a naval blockade of Germany . This proved effective in cutting off vital supplies, though it violated accepted international law. Britain also mined international waters which closed off entire sections of
37635-424: Was the first agency to evaluate the potential of helicopter rescue assistance, beginning in 1938. USCG Commander William J. Kossler witnessed a helicopter demonstration flight by Igor Sikorsky , flying the Vought-Sikorsky VS-300 , equipped with pontoons for water landings and at once saw the advantages of helicopter-equipped search and rescue squadrons. Two early Sikorsky R-4s were acquired in 1941, and training
37830-586: Was the foundation of German foreign policy but in 1890, he was forced to retire by Wilhelm II . The latter was persuaded not to renew the Reinsurance Treaty by his new Chancellor , Leo von Caprivi . This gave France an opening to agree the Franco-Russian Alliance in 1894, which was then followed by the 1904 Entente Cordiale with Britain. The Triple Entente was completed by the 1907 Anglo-Russian Convention . While not formal alliances, by settling long-standing colonial disputes in Asia and Africa, British support for France or Russia in any future conflict became
38025-437: Was too late as the flyer had already drowned. In contrast, Simon's plane had stayed afloat with Simon on top of it; Robinson spotted him and offered to pick him up and fly him back to shore. But Simon, who was comfortable and smoking a cigarette, preferred to wait for a boat to come and tow both him and his plane back to dry land, which is what happened. As per one account at the time, this decision "wrestled from Simon and Robinson
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