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78-414: The Convair F2Y Sea Dart is an American seaplane fighter aircraft that rode on twin hydro-skis during takeoff and landing. It flew only as a prototype , and never entered mass production. It is the only seaplane to have exceeded the speed of sound. It was created in the 1950s, to overcome the problems with supersonic planes taking off and landing on aircraft carriers . The program was canceled after

156-511: A Delta Dagger on water skis. Convair's proposal gained an order for two prototypes in late 1951. Twelve production aircraft were ordered before a prototype had even flown. No armament was ever fitted to any Sea Dart built, but the plan was to arm the production aircraft with four 20mm Colt Mk12 cannon and a battery of folding-fin unguided rockets . Four of this order were redesignated as service test vehicles, and an additional eight production aircraft were soon ordered as well. The aircraft

234-488: A United States naval aviator in an M.5 The German aircraft manufacturing company Hansa-Brandenburg built flying boats starting with the model Hansa-Brandenburg GW in 1916, and had a degree of military success with their Hansa-Brandenburg W.12 two-seat floatplane fighter the following year, being the primary aircraft flown by Imperial Germany's maritime fighter ace, Friedrich Christiansen . The Austro-Hungarian firm Lohner-Werke began building flying boats, starting with

312-652: A Wright Model B floatplane, by Frank Coffyn in 1911. The Wright Brothers, widely celebrated for their breakthrough aircraft designs, were slower to develop a seaplane; Wilbur died in 1912, and the company was bogged down in lawsuits. However, by 1913, the Wright Brother company developed the Wright Model CH Flyer. In 1913, the Wright company also came out withe Wright Model G Aerboat, which was

390-458: A damper. A tapered rod is used on some designs to change the size of the orifice as the piston moves, providing greater resistance as compression of the strut increases. Additionally, a check valve is sometimes used to uncover additional orifices so that damping during compression is less than during rebound. Oleo struts absorb and dissipate forces by converting a portion of the accumulated kinetic energy into thermal energy. Pneumatic systems like

468-459: A feature of both flying-boat hulls and seaplane 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 a weak hull and poor water handling. The combination of

546-464: A five-seat Sanchez-Besa from 1 August 1912. The French Navy ordered its first floatplane in 1912. On May 10, 1912 Glenn L. Martin flew a homemade seaplane in California , setting records for distance and time. In 1911−12, François Denhaut constructed the first seaplane with a fuselage forming a hull, using various designs to give hydrodynamic lift at take-off. Its first successful flight

624-683: A fluid that does not; in this use, an engine-driven pump is used to pressurize the hydraulic fluid . Another such example was a US patent filed by Jarry Hydraulics during 1958. During the 1960s, the British Ministry of Technology sponsored research into theoretical studies into improved oleo-damping technology. In 2012, it was proposed that the vibration-damping qualities of the oleo strut could be enhanced by using semi-active control to adjust fluid viscosity. The use of oleo struts for electric-powered automatic guided vehicles has also been evaluated. According to Engineering360, by 2019,

702-643: 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

780-658: A hulled seaplane resulted in the 1913 Model E and Model F , which he called "flying-boats". In February 1911, the United States Navy took delivery of the Curtiss Model E and soon tested landings on and take-offs from ships, using the Curtiss Model D. There were experiments by aviators to adapt the Wright Model B to a water landing. The first motion picture recorded from an airplane was from

858-681: 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

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936-595: 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

1014-529: A seaplane with an enclosed cabin (a first for the company);the chief engineer of this version was Grover Loening . 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 . The latter's first attempts to fly attracted large crowds, though

1092-465: A series of unsatisfactory results and a tragic accident on 4 November 1954, in which test pilot Charles E. Richbourg was killed when the Sea Dart he was piloting disintegrated in midair. The four surviving planes were retired in 1957, but some were kept in reserve until 1962. The Sea Dart began as Convair 's entry in a 1948 U.S. Navy contest for a supersonic interceptor aircraft . At the time, there

1170-521: A towed kite glider on floats. The first of his unpowered flights was 150 yards (140 m). 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 United States. On 28 March 1910, Frenchman Henri Fabre flew the first successful powered seaplane,

1248-508: Is a pneumatic air–oil hydraulic shock absorber used on the landing gear of most large aircraft and many smaller ones. This design cushions the impacts of landing and damps out vertical oscillations. It is undesirable for an airplane to bounce on landing as it could lead to a loss of control, and the landing gear should not add to this tendency. A steel coil spring stores impact energy from landing and then releases it, while an oleo strut instead absorbs this energy, reducing bounce. As

1326-407: Is divided into two chambers that are connected by a small orifice of a precise, calculated size. When the aircraft is stationary on the ground, its weight is supported by the compressed gas in the cylinder. During landing, or when the aircraft taxis over bumps, the piston slides up and down. This movement compresses the gas, which acts as a spring, and forces oil through the orifice, which acts as

1404-839: Is sometimes used specifically to refer to a floatplane, rather than a flying boat. The word "seaplane" is used to describe two types of air/water vehicles: the floatplane and the flying boat . The term "seaplane" is used by some to mean "floatplane". This is the standard British usage. This article treats both flying boats and floatplanes as types of seaplane, in the US fashion. An amphibious aircraft can take off and land both on conventional runways and water. A true seaplane can only take off and land on water. There are amphibious flying boats and amphibious floatplanes, as well as some hybrid designs, e.g. , floatplanes with retractable floats. Modern (2019) production seaplanes range in size from flying-boat type light-sport aircraft amphibians, such as

1482-620: The Dornier Wal in 1924. The enormous Do X was powered by 12 engines and carried 170 people. It flew across the Atlantic to the Americas in 1929, 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 engines installed, in an attempt to overcome the lack of power. Two of these were sold to Italy. The military value of flying boats

1560-485: 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. The "notch" breakthrough would soon after evolve into a "step", with the rear section of the lower hull sharply recessed above the forward lower hull section, and that characteristic became

1638-605: The Gnome Omega -powered hydravion , a trimaran floatplane . Fabre's first successful take off and landing by a powered seaplane 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

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1716-643: The Icon A5 and AirMax SeaMax , to the 100,000 lb ShinMaywa US-2 and Beriev Be-200 multi-role amphibians. Examples in between include the Dornier Seastar flying-boat type, 12-seat, utility amphibian and the Canadair CL-415 amphibious water-bomber. The Viking Air DHC-6 Twin Otter and Cessna Caravan utility aircraft have landing gear options which include amphibious floats. Taking off on water

1794-626: The Lohner E in 1914 and the later (1915) widely copied Lohner L . 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 airplane to fly across the Atlantic Ocean in 1919, crossing with multiple stops via the Azores . Of the four that made

1872-662: The Short S.8 Calcutta . In 1928, four Supermarine Southampton flying boats of the RAF Far East flight arrived in Melbourne , Australia . The flight was considered proof that flying boats had become a reliable means of long-distance transport. In 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

1950-566: 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 is called an amphibious aircraft . The "Bat Boat" completed several landings on sea and on land and 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

2028-556: 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's 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 a fully enclosed cabin. Trials of the America began 23 June 1914 with Porte also as Chief Test Pilot; testing soon revealed serious shortcomings in

2106-551: The 123-foot-span five-engined Felixstowe Fury triplane (also known as the "Porte Super-Baby" or "PSB"). F.2, F.3, and F.5 flying boats were extensively employed by the Royal Navy for coastal patrols and to search 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 in a dogfight with ten German seaplanes, shooting down two confirmed and four probables at no loss. As

2184-681: The Cleveland Pneumatic Tool Company designed and introduced an oleo strut, one of the first to be purpose-designed for use on airplanes. The company subsequently marketed the product as an Aerol strut, which had entered widespread use within the United States within the space of a decade. By 1931, innovations in the field were being made in the United Kingdom , France , and North America. The oleo strut became commonly used for aviation purposes around

2262-417: 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. Two hundred forty-four were built in total. Towards the end of World War I, the aircraft were flown by Italian Navy Aviation, United States Navy and United States Marine Corps airmen. Ensign Charles Hammann won the first Medal of Honor awarded to

2340-552: The Quadro range of motor scooters use the oleo strut, which is claimed to give favourable low speed lean characteristics. An oleo strut consists of an inner metal tube or piston , which is attached to the wheel axle, and which moves up and down in an outer (or upper) metal tube, or cylinder, that is attached to the airframe . The cavity within the strut and piston is filled with gas (usually nitrogen, sometimes air—especially on light aircraft ) and oil (usually hydraulic fluid), and

2418-532: 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 , 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

Convair F2Y Sea Dart - Misplaced Pages Continue

2496-428: The US, Wanamaker's commission built on Glen Curtiss's previous development and experience with the Curtiss Model F for the U.S. Navy, which rapidly resulted in the America , designed under Porte's supervision following his study and rearrangement of 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

2574-419: The aircraft failed to take off and required a re-design of the floats incorporating features from the boat hulls of the lake's motor boat racing club member Isaac Borwick. 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

2652-454: The airframe's limitations. Even before that, the Navy had been losing interest (problems with supersonic fighters on carrier decks having been overcome) and the crash relegated the Sea Dart program to experimental status. All production aircraft were cancelled, though the remaining three service test examples were completed. The two final prototypes never flew. Despite the fact that the airplane

2730-699: The attempt, only one completed the flight. In 1923, the first successful commercial flying-boat service was introduced, with flights to and from the Channel Islands . After frequent appeals by the industry for subsidies, the Government decided that nationalization was necessary and ordered five aviation companies to merge to form 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 and India using aircraft such as

2808-489: The considerable increase in the number and length of land-based runways during World War II. Further, as the speed and range of land-based aircraft increased, the commercial competitiveness of flying boats diminished; their design compromised aerodynamic efficiency and speed to accomplish the feat of waterborne takeoff and landing. Competing with new civilian jet aircraft like the de Havilland Comet and Boeing 707 proved impossible. Oleo (shock absorber) An oleo strut

2886-463: The design; it was under-powered, so the engines were replaced with more powerful tractor engines. 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's 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

2964-447: 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. The two years before World War I's breakout also saw the privately produced pair of Benoist XIV biplane flying boats, designed by Thomas W. Benoist , initiate the start of the first heavier-than-air airline service anywhere in

3042-399: The end of World War I. Another seventy were built, and these were followed by two F.2c, which were built at Felixstowe. In February 1917, the first prototype of the Felixstowe F.3 was flown. It was larger and heavier than the F.2, giving it greater range and heavier bomb load, but poorer agility. Approximately 100 Felixstowe F.3s were produced before the end of the war. The Felixstowe F.5

3120-507: 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 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 World War I on his Dornier Rs. I giant flying boat and perfected on

3198-739: 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 seaplanes were developed, starting with

Convair F2Y Sea Dart - Misplaced Pages Continue

3276-481: The first patent for a flying machine with a boat hull and retractable landing gear in 1876, but Austrian Wilhelm Kress is credited with building the first seaplane, Drachenflieger , in 1898, although its two 30 hp (22 kW) 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 the River Seine with

3354-426: The hull, they would be raised by a portside elevator just aft of the sail and set to take off on their own on a smooth sea but catapulted aft in a higher sea. The program only reached the "writing on a napkin" stage, for two problems were not addressed: the hole for the elevator would have seriously weakened the hull and the load of a laden elevator would also be difficult to transmit to the hull structure. The aircraft

3432-465: The investments in airports during the war but mainly because landplanes were less constrained by weather conditions that could result in sea states being too high to operate seaplanes while landplanes could continue to operate. In the 21st century, seaplanes maintain a few niche uses, such as for aerial firefighting , air transport around archipelagos, and access to undeveloped or roadless areas, some of which have numerous lakes. In British English, seaplane

3510-568: The largest aircraft built and flown by any of the Axis Powers . 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 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

3588-446: The mail. Unfortunately, this was too complex, and the Mercury had to be returned from America by ship. The Mercury did set some distance records before in-flight refuelling 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

3666-478: The mid-1930s. The engineer, Peter Thornhill, devised a novel undercarriage strut that used a free-floating piston, not only being a lighter arrangement but enabling the whole strut to be inverted and to work while at an angle, eliminating the weakness of using an oil and air mixture. Oleo-pneumatic technology was subsequently reused by the manufacturer to produce several other products, including hydraulic railway buffers and industrial shock absorbers. During 1926,

3744-594: 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 the Felixstowe F.2A, being used as a patrol aircraft, with about 100 being completed by

3822-550: The oleo-pneumatic strut had become the most common type of shock absorber in use on modern aircraft. The oleo strut has seen much use on the largest cargo airplanes in the world, such as the Antonov An-124 Ruslan ; it reportedly provides for a rough-field landing capacity while carrying payloads of up to 150 tons. This design also cushions the airframe from the impacts of taxiing , resulting in greater levels of comfort for passengers and crew. In non-aircraft use,

3900-523: The performance, twenty of the modified JRM-1 Mars were ordered. The first, named Hawaii Mars , was delivered in June 1945, but the Navy scaled back their order at the end of World War II, buying only the five aircraft which were then on the production line. The five Mars were completed, and the last delivered in 1947. After World War II, the use of flying boats rapidly declined for several reasons. The ability to land on water became less of an advantage owing to

3978-555: 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's development of the Flying Fish flying boat in 1913 brought him into contact with John Cyril Porte , a retired Royal Navy Lieutenant, aircraft designer and test pilot who was to become an influential British aviation pioneer. Recognising that many of

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4056-500: The remaining as Model H-4s . 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

4134-459: The shock-absorbing oleo legs they were extended on. Work on the skis and legs improved this situation somewhat, but they were unable to resolve the sluggish performance. The Sea Dart proved incapable of supersonic speed in level flight with the J34 engines; not helping was its pre- area rule shape, which meant higher transonic drag. The second prototype was canceled, so the first service test aircraft

4212-406: 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

4290-530: The strut compresses, the spring rate increases dramatically because the air is being compressed. The viscosity of the oil damps the rebound movement. The original design for the oleo-pneumatic shock-absorbing strut was patented by British manufacturing conglomerate Vickers Armstrong during 1915. It had been derived from the recuperative gear design of the Vickers gun , controlling recoil by forcing oil through precisely sized orifices. Vickers' oleo strut

4368-499: The terminals for many early transatlantic flights. In areas where there were no airfields for land-based aircraft, flying boats could stop at small river, lake or coastal stations to refuel and resupply. The Pan Am Boeing 314 "Clipper" flying boats brought new exotic destinations like the Far East within reach and came to represent the romance of flight. By 1931, mail from Australia was reaching Britain in 16 days, or less than half

4446-452: 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 Empire, and Qantas and IAL were successful with 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

4524-592: The vast distances of the Pacific Theater and Atlantic . They also sank numerous submarines and found enemy ships. 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. The largest flying boat of the war was the Blohm & Voss BV 238 , which was also the heaviest plane to fly during World War II and

4602-660: 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 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

4680-568: 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

4758-514: The wings to avoid ingesting spray. When these engines were not ready for the prototypes, twin Westinghouse J34-WE-32 engines of just over half the power were installed. The prototype was fitted with an experimental single ski, which proved more successful than the twin-ski design of the second service test aircraft. Testing with several other experimental ski configurations continued with the prototype through 1957, after which it

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4836-655: The world, and the first airline service of any kind at all in the United States. At the same time, the British boat-building firm J. Samuel White of Cowes on 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

4914-425: The world. By the twenty-first century, a wide range of different shock-absorbing struts were in use, but typically employ common principles, despite considerable variations in size, weight, and other characteristics. Refinements continued to be made to the technology behind the oleo strut. During 1954, hydropneumatic suspension was introduced, which uses the same principle of a gas that compresses ( nitrogen ) and

4992-572: Was attempted by some early flight attempts, but water take off and landing began in earnest in the 1910s and seaplanes pioneered transatlantic routes, and were used in World War I. They continued to develop before World War II, and had widespread use. After World War II, the creation of so many land airstrips meant water landings began to drift into special applications. They continued in niches such as access in remote areas, forest fire fighting, and maritime patrol. The Frenchman Alphonse Pénaud filed

5070-510: Was built and flown. This was fitted with the J46 engines, which performed below specification. However, speeds in excess of Mach 1 were attained in a shallow dive with this aircraft, making it the only supersonic seaplane to date. On 4 November 1954, Sea Dart BuNo 135762 disintegrated in midair over San Diego Bay during a demonstration for naval officials and the press, killing Convair test pilot Charles E. Richbourg when he inadvertently exceeded

5148-619: Was built in Convair's San Diego facility at Lindbergh Field and was taken to San Diego Bay for testing in December 1952. On 14 January 1953, with E. D. "Sam" Shannon at the controls, the aircraft inadvertently made its first short flight during what was supposed to be a fast taxi run; its official maiden flight was on 9 April. The underpowered engines made the fighter sluggish, and the hydro-skis were not as successful as hoped; they created violent vibration during takeoff and landing, despite

5226-482: Was first applied to an aeroplane by the French aircraft company Breguet Aviation . The design proved to be viable and was extensively adopted across the aviation industry for fixed undercarriages, becoming simply referred to as an "Oleo unit" or undercarriage leg. Vickers' initial design had placed air above the oil, an arrangement that did not pose any problem until the introduction of retractable landing gear during

5304-404: 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 World War I. Porte sailed for England on 4 August 1914 and rejoined the Navy as

5382-534: 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, 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.5. Porte's final design at the Seaplane Experimental Station was

5460-457: Was much skepticism about operating supersonic aircraft from carrier decks. In order to address this issue, the U.S. Navy ordered many subsonic fighters. The worry had some foundation, since many supersonic designs of the time required long takeoff rolls, had high approach speeds, and were not very stable or easy to control—all factors that were troublesome on a carrier. Ernest Stout's team at Convair's hydrodynamic research laboratory proposed to put

5538-613: Was officially retired and had not flown since 1957, at least one F2Y was still in storage as of 1962. As a result, it was redesignated YF-7A under the 1962 United States Tri-Service aircraft designation system . All four remaining Sea Darts survive to this day. Data from Naval Fighters #23 : Convair XF2Y-1 And YF2Y-1 Sea Dart General characteristics Performance Armament Related development Aircraft of comparable role, configuration, and era Related lists Seaplane The use of seaplanes gradually tapered off after World War II, partially because of

5616-456: Was on 13 April 1912. Throughout 1910 and 1911, American pioneering aviator Glenn Curtiss developed his floatplane into 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 with

5694-603: Was placed into storage. The US was not the only country to consider the hydroski. The Saunders-Roe company of the United Kingdom, which had already built an experimental flying boat jet fighter, first flying in 1947 the SR.A/1 , tendered a design for a ski-equipped fighter, but little came of it. In the 1950s, the US Navy considered the internal arrangements of a submarine aircraft carrier that could carry three of these aircraft. Stored in pressure chambers that would not protrude from

5772-470: Was short-lived, as 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 (15 m) to Ferry Nab, where he made a wide turn and returned for a perfect landing on the lake's surface. In Switzerland, Émile Taddéoli equipped the Dufaux 4 biplane with swimmers and successfully took off in 1912. A seaplane

5850-399: Was such a success that the volume of mail soon exceeded aircraft storage space. A solution was found by the British government, who had requested Short Brothers to design a large long-range monoplane for IAL in 1933. Partner Qantas purchased six Short Empire flying boats. Delivering the mail as quickly as possible generated a lot of competition and some innovative designs. One variant of

5928-488: Was to be a delta-winged fighter with a watertight hull and twin retractable hydro-skis for takeoff and landing. When stationary or moving slowly in the water, the Sea Dart floated with the trailing edge of the wings touching the water. The skis were not extended until the aircraft reached about 10 miles (16 km) per hour during its takeoff run. The required power was supplied by a pair of afterburning Westinghouse XJ46-WE-02 turbojets, fed from intakes mounted high above

6006-645: Was used during the Balkan Wars in 1913, when a Greek "Astra Hydravion" did a reconnaissance of the Turkish fleet and dropped four bombs. 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 a further sum" from the Women's Aerial League of Great Britain . American businessman Rodman Wanamaker became determined that

6084-472: Was well-recognized, and every country bordering on water operated them in a military capacity at the outbreak of the war. They were utilized in various tasks from anti-submarine patrol to air-sea rescue and gunfire spotting for battleships. Aircraft such as the PBM Mariner patrol bomber, PBY Catalina , Short Sunderland , and Grumman Goose recovered downed airmen and operated as scout aircraft over

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