131-584: The Central Gliding School ( CGS ) is the Royal Air Force 's primary institution for the training of gliding instructors for the instruction of Royal Air Force and Air Cadet personnel. It is administered under No. 2 Flying Training School and is responsible for the standardisation of the Air Cadet gliding syllabus and its instructors. The Central Gliding school was formed on 9 August 1971 at RAF Spitalgate by merging No. 1 and No. 2 Gliding Centres. It
262-679: A Private Finance Initiative with newly purchased Sikorsky S-92 and AgustaWestland AW189 aircraft. The new contract means that all UK SAR coverage is now provided by Bristow aircraft. In 2018, the RAF's vision of a future constellation of imagery satellites was initiated through the launch of the Carbonite-2 technology demonstrator. The 100 kg Carbonite-2 uses commercial off-the-shelf (COTS) components to deliver high-quality imagery and 3D video footage from space. The Royal Air Force celebrated its 100th anniversary on 1 April 2018. It marked
393-399: A V-tail configuration, are used to move the boom by creating aerodynamic forces. They are actuated hydraulically and controlled by the boom operator using a control stick. The boom operator also telescopes the boom to make the connection with the receiver's receptacle. To complete an aerial refueling, the tanker and receiver aircraft rendezvous, flying in formation. The receiver moves to
524-520: A carrier air wing ) to extend the range of its strike aircraft. In other cases, using the buddy store method allows a carrier -based aircraft to take-off with a heavier than usual load less fuel than might be necessary for its tasking. The aircraft would then topped-up with fuel from an HDU-equipped "buddy" tanker, a method previously used by the Royal Navy in operating its Supermarine Scimitar , de Havilland Sea Vixen , and Blackburn Buccaneers ; in
655-637: A wing commander and, for a fast-jet squadron, have an complement of around twelve aircraft. Independent flights are so designated because they are explicitly smaller in size than a squadron. Many independent flights are, or have been, front-line flying units. For example, No. 1435 Flight carries out air defence duties for the Falkland Islands , with four Eurofighter Typhoon fighters based at RAF Mount Pleasant . Support capabilities are provided by several specialist wings and other units. Command, control, and support for overseas operations
786-455: A Hose Drum Unit (HDU). When not in use, the hose/drogue is reeled completely into the HDU. The receiver has a probe , which is a rigid, protruding or pivoted retractable arm placed on the aircraft's nose or fuselage to make the connection. Most modern versions of the probe are usually designed to be retractable, and are retracted when not in use, particularly on high-speed aircraft. At the end of
917-587: A Return-To-Launch-Site abort capability if necessary. At its most efficient altitude and speed, the Blackbird was capable of flying for many hours without refueling. The SR-71 used a special fuel, JP-7 , with a very high flash point to withstand the extreme skin temperatures generated during Mach 3+ cruise flight. While JP-7 could be used by other aircraft, its burn characteristics posed problems in certain situations (such as high-altitude, emergency engine starts) that made it less than optimal for aircraft other than
1048-540: A boom system followed quickly in the autumn of 1948. The first use of aerial refueling in combat took place during the Korean War, involving F-84 fighter-bombers flying missions from Japanese airfields, due to Chinese-North Korean forces overrunning many of the bases for jet aircraft in South Korea, refueling from converted B-29s using the drogue-and-probe in-flight refueling system with the probe located in one of
1179-580: A feat made possible by four aerial refuelings from four pairs of KB-29M tankers of the 43d ARS. Before the mission, crews of the 43rd had experienced only a single operational air refueling contact. The flight started and ended at Carswell Air Force Base in Fort Worth, Texas with the refuelings accomplished over the Azores , Saudi Arabia , the Pacific Ocean near Guam , and between Hawaii and
1310-403: A flexible hose that trails from the tanker aircraft. The drogue (or para-drogue ), sometimes called a basket , is a fitting resembling a shuttlecock , attached at its narrow end (like the "cork" nose of a shuttlecock) with a valve to a flexible hose. The drogue stabilizes the hose in flight and provides a funnel to aid insertion of the receiver aircraft probe into the hose. The hose connects to
1441-404: A four-aircraft strike package. USAF KC-135 and French Air Force KC-135FR refueling-boom equipped tankers can be field-converted to a probe-and-drogue system using a special adapter unit. In this configuration, the tanker retains its articulated boom, but has a hose/drogue at the end of it instead of the usual nozzle. The tanker boom operator holds the boom still while the receiver aircraft flies
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#17327830489071572-634: A front-line training responsibility – their job is to group the University Air Squadrons and the Volunteer Gliding Squadrons together. The commanding officer of No. 2 FTS holds the only full-time flying appointment for a Group Captain in the RAF, and is a reservist. Aerial refueling Aerial refueling ( en-us ), or aerial refuelling ( en-gb ), also referred to as air refueling , in-flight refueling ( IFR ), air-to-air refueling ( AAR ), and tanking ,
1703-493: A hose-and-drogue system, dubbed UPAZ, and thus later Russian aircraft may be equipped with probe and drogue. The Chinese PLAF has a fleet of Xian H-6 bombers modified for aerial refueling, and plans to add Russian Ilyushin Il-78 aerial refueling tankers. Tankers can be equipped with multipoint hose-and-drogue systems, allowing them to refuel two (or more) aircraft simultaneously, reducing time spent refueling by as much as 75% for
1834-644: A minor role in the Korean War , with flying boats taking part. From 1953 to 1956 the RAF Avro Lincoln squadrons carried out anti- Mau Mau operations in Kenya using its base at RAF Eastleigh . The Suez Crisis in 1956 saw a large RAF role, with aircraft operating from RAF Akrotiri and RAF Nicosia on Cyprus and RAF Luqa and RAF Hal Far on Malta as part of Operation Musketeer . The RAF suffered its most recent loss to an enemy aircraft during
1965-416: A much smaller position-keeping tolerance, staying properly connected to a KC-135 adapter unit is considerably more difficult than staying in a traditional hose/drogue configuration. When fueling is complete, the receiver carefully backs off until the probe refueling valve disconnects from the valve in the basket. Off center disengagements, like engagements, can cause the drogue to "prang" the probe and/or strike
2096-444: A new jet endurance record. FRL still exists as part of Cobham plc . Modern specialized tanker aircraft have equipment specially designed for the task of offloading fuel to the receiver aircraft, based on drogue and probe, even at the higher speeds modern jet aircraft typically need to remain airborne. In January 1948, General Carl Spaatz, then the first Chief of Staff of the new United States Air Force , made aerial refueling
2227-484: A pioneer of long-distance aviation. During the 1920s, he made long-distance flights to places as far afield as Africa and Australia and he began experimenting with the possibilities of in-flight refueling to extend the range of flight. Cobham was one of the founding directors of Airspeed Limited , an aircraft manufacturing company that went on to produce a specially-adapted Airspeed Courier that Cobham used for his early experiments with in-flight refueling. This craft
2358-407: A position behind the tanker, within safe limits of travel for the boom, aided by director lights or directions radioed by the boom operator. Once in position, the operator extends the boom to make contact with the receiver aircraft. Once in contact, fuel is pumped through the boom into the receiver aircraft. While in contact, the receiver pilot must continue to fly within the "air refueling envelope",
2489-620: A quarter of Bomber Command's personnel were Canadian. Additionally, the Royal Australian Air Force represented around nine per cent of all RAF personnel who served in the European and Mediterranean theatres. During the Battle of Britain in 1940, the RAF defended the skies over Britain against the numerically superior German Luftwaffe . In what is perhaps the most prolonged and complicated air campaign in history,
2620-584: A similar dropped line from the receiver, allowing the refueling to commence. In 1935, Cobham sold off the airline Cobham Air Routes Ltd to Olley Air Service and turned to the development of inflight refueling, founding the company Flight Refuelling Ltd . Atcherly's system was bought up by Cobham's company, and with some refinement and continuous improvement through the late '30s, it became the first practical refueling system. Sir Alan Cobham 's grappled-line looped-hose air-to-air refueling system borrowed from techniques patented by David Nicolson and John Lord, and
2751-594: A single Hawker Tempest F.6 in January 1949. Before Britain developed its own nuclear weapons , the RAF was provided with American nuclear weapons under Project E . However, following the development of its own arsenal, the British Government elected on 16 February 1960 to share the country's nuclear deterrent between the RAF and submarines of the Royal Navy, first deciding to concentrate solely on
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#17327830489072882-417: A single mission, without landing to install an adapter. Other tankers are equipped with hose-and-drogue attachments that do not interfere with the operation of the centerline boom: many KC-135s are equipped with dual under-wing attachments known as Multi-point Refueling System (MPRSs), while some KC-10s and A330 MRTTs have similar under-wing refueling pods (referred to as Wing Air Refueling Pods or WARPs on
3013-460: A small number of FRL looped-hose units and fitted a number of B-29s as tankers to refuel specially equipped B-29s and later B-50s. The USAF made only one major change in the system used by the RAF. The USAF version had auto-coupling of the refueling nozzle, where the leader line with the refueling hose is pulled to the receiver aircraft and a refueling receptacle on the belly of the aircraft, allowing high-altitude air-to-air refueling and doing away with
3144-575: A squadron of Javelin air defense aircraft was refueled in stages from the UK to India and back (exercise "Shiksha"). After the retirement of the Valiant in 1965, the Handley Page Victor took over the UK refueling role and had three hoses (HDUs). These were a fuselage-mounted HDU and a refueling pod on each wing. The center hose could refuel any probe-equipped aircraft, the wing pods could refuel
3275-578: A support enabler role. A Control and Reporting Centre (CRC) at RAF Boulmer is tasked with compiling a Recognised Air Picture of UK air space and providing tactical control of the Quick Reaction Alert Force . In order to achieve this Boulmer is supported by a network of eight Remote Radar Heads (RRHs) spread the length of the UK. The UK operates permanent military airfields (known as Permanent Joint Operating Bases) in four British Overseas Territories . These bases contribute to
3406-600: A top priority of the service. In March 1948, the USAF purchased two sets of FRL's looped-hose in-flight refueling equipment, which had been in practical use with British Overseas Airways Corporation (BOAC) since 1946, and manufacturing rights to the system. FRL also provided a year of technical assistance. The sets were immediately installed in two Boeing B-29 Superfortresses , with plans to equip 80 B-29s. Flight testing began in May 1948 at Wright-Patterson Air Force Base , Ohio , and
3537-490: A war that remained under low profile. The Konfrontasi against Indonesia in the early 1960s did see use of RAF aircraft, but due to a combination of deft diplomacy and selective ignoring of certain events by both sides, it never developed into a full-scale war. The RAF played a large role in the Aden Emergency between 1963 and 1967. Hawker Hunter FGA.9s based at RAF Khormaksar , Aden , were regularly called in by
3668-999: Is also responsible for the RAF Medical Services, RAF Support Force, consisting of the RAF's engineering, logistics, intelligence, signals, musical and mountain rescue assets, RAF's Combat and Readiness Force, comprising the RAF Regiment , and the Air Security Force, comprising RAF Police . It oversees stations at RAF Benson and RAF Brize Norton in Oxfordshire, RAF Henlow in Bedfordshire, RAF Honington in Suffolk, RAF Odiham in Hampshire and RAF Northolt in West London. No. 11 Group
3799-501: Is at RAF High Wycombe co-located with Air Command. Groups are the subdivisions of operational commands and are responsible for certain types of capabilities or for operations in limited geographical areas. There are five groups subordinate to Air Command, of which four are functional and one is geographically focused: No. 1 Group is responsible for combat aircraft (comprising the Lightning Force and Typhoon Force) and
3930-472: Is not compatible with flying boom equipment, creating a problem for military planners where mixed forces are involved. Incompatibility can also complicate the procurement of new systems. The Royal Canadian Air Force currently wish to purchase the F-35A , which can only refuel via the flying boom, but only possess probe-and-drogue refuelers . The potential cost of converting F-35As to probe-and-drogue refueling (as
4061-814: Is part of the Ministry of Defence and body legally responsible for the defence of the United Kingdom and its overseas territories . The Chief of the Air Staff chairs the Air Force Board Standing Committee (AFBSC) which decides on the policy and actions required for the RAF to meet the requirements of the Defence Council and His Majesty's Government . The Chief of the Air Staff is supported by several other senior commanders: Administrative and operational command of
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4192-447: Is relatively light (typically soft canvas webbing) and subject to aerodynamic forces, it can be pushed around by the bow wave of approaching aircraft, exacerbating engagement even in smooth air. After initial contact, the hose and drogue is pushed forward by the receiver a certain distance (typically, a few feet), and the hose is reeled slowly back onto its drum in the HDU. This opens the tanker's main refueling valve allowing fuel to flow to
4323-657: Is responsible for integrating operations across the air , cyber and space domains whilst responding to new and evolving threats. It includes the RAF's Battlespace Management Force which controls the UK Air Surveillance and Control System (ASACS). The group oversees stations at RAF Boulmer in Northumberland, RAF Fylingdales in North Yorkshire and RAF Spadeadam in Cumbria. No. 22 Group
4454-731: Is responsible for the supply of qualified and skilled personnel to the RAF and provides flying and non-flying training to all three British armed services. It is the end-user of the UK Military Flying Training System which is provided by civilian contractor Ascent Flight Training . The group oversees stations at RAF College Cranwell in Lincolnshire, RAF Cosford and RAF Shawbury in Shropshire, RAF Halton in Buckinghamshire, MOD St Athan in
4585-592: Is second to none, and that makes a decisive air power contribution in support of the UK Defence Mission". The mission statement is supported by the RAF's definition of air power , which guides its strategy. Air power is defined as "the ability to project power from the air and space to influence the behaviour of people or the course of events". Today, the Royal Air Force maintains an operational fleet of various types of aircraft, described by
4716-618: Is the process of transferring aviation fuel from one aircraft (the tanker ) to another (the receiver) while both aircraft are in flight. The two main refueling systems are probe-and-drogue , which is simpler to adapt to existing aircraft and the flying boom , which offers faster fuel transfer, but requires a dedicated boom operator station. The procedure allows the receiving aircraft to remain airborne longer, extending its range or loiter time. A series of air refuelings can give range limited only by crew fatigue /physical needs and engineering factors such as engine oil consumption. Because
4847-517: Is typically provided through Expeditionary Air Wings (EAWs). Each wing is brought together as and when required and comprises the deployable elements of its home station as well as other support elements from throughout the RAF. Several Expeditionary Air Wings are based overseas: The RAF Schools consist of the squadrons and support apparatus that train new aircrew to join front-line squadrons. The schools separate individual streams, but group together units with similar responsibility or that operate
4978-479: Is used on US Navy & Marine Corps F-35Bs and F-35Cs ) added to the early-2010s political controversy which surrounded F-35 procurement within the RCAF. These concerns can be addressed by drogue adapters (see section "Boom drogue adapter units" above) that allow drogue aircraft to refuel from boom-equipped aircraft, and by refuelers that are equipped with both drogue and boom units and can thus refuel both types in
5109-594: The 1948 Arab–Israeli War : during the withdrawal of the former Mandatory Palestine in May 1948 where British Supermarine Spitfire FR.18s shot down four Royal Egyptian Air Force Spitfire LF.9s after the REAF mistakenly attacked RAF Ramat David airbase; and during encounters with the Israeli Air Force which saw the loss of a single de Havilland Mosquito PR.34 in November 1948 and four Spitfire FR.18s and
5240-709: The Aéro-Club de France and the 34th Aviation Regiment of the French Air Force were able to demonstrate passing fuel between machines at the annual aviation fete at Vincennes in 1928. The UK's Royal Aircraft Establishment was also running mid-air refueling trials, with the aim to use this technique to extend the range of the long-distance flying boats that serviced the British Empire . By 1931 they had demonstrated refueling between two Vickers Virginias , with fuel flow controlled by an automatic valve on
5371-653: The British Army as close air support to carry out strikes on rebel positions. The Radfan Campaign (Operation Nutcracker) in early 1964 was successful in suppressing the revolt in Radfa, however it did nothing to end the insurgency with the British withdrawing from Aden in November 1967. One of the largest actions undertaken by the RAF during the Cold War was the air campaign during the 1982 Falklands War , in which
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5502-584: The British Empire , including establishing bases to protect Singapore and Malaya. The RAF's naval aviation branch, the Fleet Air Arm , was founded in 1924 but handed over to Admiralty control on 24 May 1939. The RAF adopted the doctrine of strategic bombing , which led to the construction of long-range bombers and became its main bombing strategy in the Second World War . The Royal Air Force underwent rapid expansion prior to and during
5633-678: The London Eye , the RAF Memorial and (at 13.00) the Ministry of Defence building . Four major defence reviews have been conducted since the end of the Cold War: the 1990 Options for Change , the 1998 Strategic Defence Review , the 2003 Delivering Security in a Changing World and the 2010 Strategic Defence and Security Review (SDSR). All four defence reviews have resulted in steady reductions in manpower and numbers of aircraft, especially combat aircraft such as fast-jets. As part of
5764-666: The Royal Naval Air Service (RNAS). Following the Allied victory over the Central Powers in 1918, the RAF emerged as the largest air force in the world at the time. Since its formation, the RAF has played a significant role in British military history . In particular, during the Second World War , the RAF established air superiority over Nazi Germany 's Luftwaffe during the Battle of Britain , and led
5895-584: The Royal Naval Air Service (RNAS). This was done as recommended in a report prepared by the South African statesman and general Jan Smuts . At that time it was the largest air force in the world. Its headquarters was located in the former Hotel Cecil . After the war, the RAF was drastically cut and its inter-war years were relatively quiet. The RAF was put in charge of British military activity in Iraq , and carried out minor activities in other parts of
6026-683: The Royal Navy 's Fleet Air Arm and the British Army 's Army Air Corps also operate armed aircraft. The Royal Air Force was formed towards the end of the First World War on 1 April 1918, becoming the third independent air force in the world after the Mexican Air Force (established 5 February 1915) and the Finnish Air Force (established 6 March 1918), by merging the Royal Flying Corps (RFC) and
6157-618: The Short Empire flying boat Cambria from an Armstrong Whitworth AW.23 . Handley Page Harrows were used in the 1939 trials to perform aerial refueling of the Empire flying boats for regular transatlantic crossings. From 5 August to 1 October 1939, sixteen crossings of the Atlantic were made by Empire flying boats, with fifteen crossings using FRL's aerial refueling system. After the sixteen crossings further trials were suspended due to
6288-417: The UK Military Flying Training System which is dedicated to training aircrew for all three UK armed services. Specialist ground crew training is focused at RAF Cosford , RAF St Mawgan and MOD St. Athan . Operations are supported by numerous other flying and non-flying stations, with activity focussed at RAF Honington which coordinates Force Protection and RAF Leeming & RAF Wittering which have
6419-631: The United States Air Force , the RAF formed its own RPAS squadron in 2007 when No. 39 Squadron was stood up as a General Atomics MQ-9A Reaper unit at Creech AFB , Nevada. The RAF's 90th anniversary was commemorated on 1 April 2008 by a flypast of the RAF's Aerobatic Display Team the Red Arrows and four Eurofighter Typhoons along the River Thames , in a straight line from just south of London City Airport Tower Bridge,
6550-476: The West Coast . Cobham's company FRL soon realized that their looped-hose system left much to be desired and began work on an improved system that is now commonly called the probe-and-drogue air-to-air refueling system and today is one of the two systems chosen by air forces for air-to-air refueling, the other being the flying-boom system. In post-war trials the RAF used a modified Lancaster tanker employing
6681-740: The Westland Puma HC2 for search and rescue. No. 230 Squadron , based at Medicina Lines , Brunei, also operate the Puma HC2. A flying squadron is an aircraft unit which carries out the primary tasks of the RAF. RAF squadrons are somewhat analogous to the regiments of the British Army in that they have histories and traditions going back to their formation, regardless of where they are based or which aircraft they are operating. They can be awarded standards and battle honours for meritorious service. Most flying squadrons are commanded by
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#17327830489076812-433: The "receptacle" in the receiver aircraft during fuel transfer. A poppet valve in the end of the nozzle prevents fuel from exiting the tube until the nozzle properly mates with the receiver's refueling receptacle. Once properly mated, toggles in the receptacle engage the nozzle, holding it locked during fuel transfer. The "flying" boom is so named because flight control surfaces , small movable airfoils that are often in
6943-708: The 1991 Gulf War , the 1999 Kosovo War , the 2001 War in Afghanistan , the 2003 invasion and war in Iraq , the 2011 intervention in Libya and from 2014 onwards has been involved in the war against the Islamic State . The RAF began conducting Remotely-piloted Air System (RPAS) operations in 2004, with No. 1115 Flight carrying out missions in Afghanistan and Iraq with the General Atomics MQ-1 Predator . Initially embedded with
7074-716: The Allied strategic bombing effort. The RAF's mission is to support the objectives of the British Ministry of Defence (MOD), which are to "provide the capabilities needed to ensure the security and defence of the United Kingdom and overseas territories, including against terrorism; to support the Government's foreign policy objectives particularly in promoting international peace and security". The RAF describes its mission statement as "... [to provide] an agile, adaptable and capable Air Force that, person for person,
7205-443: The Battle of Britain contributed significantly to the delay and subsequent indefinite postponement of Operation Sea Lion , Hitler's plans for an invasion of the UK. In the House of Commons on 20 August, prompted by the ongoing efforts of the RAF, Prime Minister Winston Churchill made a speech to the nation, where he said " Never in the field of human conflict was so much owed by so many to so few" . The largest RAF effort during
7336-504: The Berlin Blockade take place. As part of Operation Pitting , the RAF helped evacuate over 15,000 people in two weeks. Between April and May 2023, the RAF helped evacuate over 2,300 people from Sudan due to the 2023 Sudan conflict as part of Operation Polarbear . In April 2024, Typhoon FGR4s operating from RAF Akrotiri, Cyprus, engaged and destroyed Iranian drones over Iraqi and Syrian airspace during Iran's strikes against Israel . The professional head and highest-ranking officer of
7467-470: The Blackbird constantly leaked fuel before heating expanded the airframe enough to seal its fuel tanks. Following the supersonic dash the SR-71 would then rendezvous with a tanker to fill its now nearly empty tanks before proceeding on its mission. This was referred to as the LTTR (for "Launch To Tanker Rendezvous") profile. LTTR had the added advantage of providing an operational test of the Blackbird's refueling capability within minutes after takeoff, enabling
7598-406: The Boeing plant at Renton, Washington . Boeing went on to develop the world's first production aerial tanker, the KC-97 Stratofreighter , a piston-engined Boeing Stratocruiser (USAF designation C-97 Stratofreighter ) with a Boeing-developed flying boom and extra kerosene (jet fuel) tanks feeding the boom. The Stratocruiser airliner itself was developed from the B-29 bomber after World War II . In
7729-452: The Buccaneer's case using a bomb-bay-mounted tank and HDU. The tanker aircraft flies straight and level and extends the hose/drogue, which is allowed to trail out behind and below the tanker under normal aerodynamic forces. The pilot of the receiver aircraft extends the probe (if required) and uses normal flight controls to "fly" the refueling probe directly into the basket. This requires a closure rate of about two knots (walking speed) to push
7860-401: The F-84's wing-tip fuel tanks. The flying boom is a rigid, telescoping tube with movable flight control surfaces that a boom operator on the tanker aircraft extends and inserts into a receptacle on the receiving aircraft. All boom-equipped tankers (e.g. KC-135 Stratotanker , KC-10 Extender , KC-46 Pegasus ) have a single boom and can refuel one aircraft at a time with this mechanism. In
7991-409: The Gliding Scholarship syllabus. This RAF article is a stub . You can help Misplaced Pages by expanding it . Royal Air Force The Royal Air Force ( RAF ) is the air and space force of the United Kingdom , British Overseas Territories and Crown Dependencies . It was formed towards the end of the First World War on 1 April 1918, on the merger of the Royal Flying Corps (RFC) and
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#17327830489078122-405: The HDU. If the hose is pushed in too far or not far enough, a cutoff switch will inhibit fuel flow, which is typically accompanied by an amber light. Disengagement is commanded by the tanker pilot with a red light. The US Navy , Marine Corps , and some Army aircraft refuel using the "hose-and-drogue" system, as do most aircraft flown by western European militaries. The Soviet Union also used
8253-507: The Houses of Parliament, Conservative MP and Minister of State for the Armed Forces , Andrew Robathan , announced that the RAF's QRA force had been scrambled almost thirty times in the last three years: eleven times during 2010, ten times during 2011 and eight times during 2012. RAF Coningsby in Lincolnshire and RAF Lossiemouth in Moray both provide QRA aircraft, and scramble their Typhoons within minutes to meet or intercept aircraft which give cause for concern. Lossiemouth generally covers
8384-405: The KC-10). A small number of Soviet Tu-4s and Tu-16s (the tanker variant was Tu-16Z). used a wing-to-wing method. Similar to the probe-and-drogue method but more complicated, the tanker aircraft released a flexible hose from its wingtip. An aircraft flying alongside had to catch the hose with a special lock under its wingtip. After the hose was locked and the connection was established, the fuel
8515-400: The KC-97, the mixed gasoline/kerosene fuel system was clearly not desirable and it was obvious that a jet-powered tanker aircraft would be the next development, having a single type of fuel for both its own engines and for passing to receiver aircraft. The 230 mph (370 km/h) cruise speed of the slower, piston-engined KC-97 was also a serious issue, as using it as an aerial tanker forced
8646-421: The RAF as being "leading-edge" in terms of technology. This largely consists of fixed-wing aircraft, including those in the following roles: fighter and strike , airborne early warning and control , intelligence, surveillance, target acquisition, and reconnaissance (ISTAR), signals intelligence (SIGINT), maritime patrol, air-to-air refueling (AAR) and strategic & tactical transport . The majority of
8777-508: The RAF is delegated by the Air Force Board to Headquarters Air Command , based at RAF High Wycombe in Buckinghamshire . Air Command was formed on 1 April 2007 by combining RAF Strike Command and RAF Personnel and Training Command , resulting in a single command covering the whole RAF, led by the Chief of the Air Staff. Through its subordinate groups , Air Command oversees the whole spectrum of RAF aircraft and operations. United Kingdom Space Command (UKSC), established 1 April 2021 under
8908-408: The RAF operated alongside the Fleet Air Arm . During the war, RAF aircraft were deployed in the mid-Atlantic at RAF Ascension Island and a detachment from No. 1 Squadron was deployed with the Royal Navy, operating from the aircraft carrier HMS Hermes . RAF pilots also flew missions using the Royal Navy's Sea Harriers in the air-to-air combat role, in particular Flight Lieutenant Dave Morgan
9039-546: The RAF's intelligence, surveillance, target acquisition, and reconnaissance (ISTAR) capabilities. It oversees stations at RAF Coningsby and RAF Waddington in Lincolnshire, RAF Lossiemouth in Moray and RAF Marham in Norfolk. The group's Eurofighter Typhoon FGR4 aircraft protect UK and NATO airspace by providing a continuous Quick Reaction Alert capability. No. 2 Group controls the Air Mobility Force which provides strategic and tactical airlift , air-to-air refuelling and command support air transport (CSAT). The group
9170-427: The RAF's rotary-wing aircraft form part of the tri-service Joint Aviation Command in support of ground forces. Most of the RAF's aircraft and personnel are based in the UK, with many others serving on global operations (principally over Iraq and Syria ) or at long-established overseas bases ( Ascension Island , Cyprus , Gibraltar , and the Falkland Islands ). Although the RAF is the principal British air power arm,
9301-401: The Royal Air Force is the Chief of the Air Staff (CAS). He reports to the Chief of the Defence Staff , who is the professional head of the British Armed Forces . The incumbent Chief of the Air Staff is Air Chief Marshal Sir Richard Knighton who was appointed in 2023. The management of the RAF is the responsibility of the Air Force Board , a sub-committee of the Defence Council which
9432-716: The Second World War. Under the British Commonwealth Air Training Plan of December 1939, the air forces of British Commonwealth countries trained and formed " Article XV squadrons " for service with RAF formations. Many individual personnel from these countries, and exiles from occupied Europe , also served with RAF squadrons. By the end of the war the Royal Canadian Air Force had contributed more than 30 squadrons to serve in RAF formations, similarly, approximately
9563-600: The Suez Crisis, when an English Electric Canberra PR7 was shot down over Syria . In 1957, the RAF participated heavily during the Jebel Akhdar War in Oman, operating both de Havilland Venom and Avro Shackleton aircraft. The RAF made 1,635 raids, dropping 1,094 tons and firing 900 rockets at the interior of Oman between July and December 1958, targeting insurgents, mountain top villages and water channels in
9694-562: The USAF to build jet tankers based on the Boeing 367-80 (Dash-80) airframe. The result was the Boeing KC-135 Stratotanker , of which 732 were built. The flying boom is attached to the rear of the tanker aircraft. The attachment is gimballed , allowing the boom to move with the receiver aircraft. The boom contains a rigid pipe to transfer fuel. The fuel pipe ends in a nozzle with a flexible ball joint. The nozzle mates to
9825-522: The USSR first had it been ordered to do so. The bombers would fly orbits around their assigned positions from which they were to enter Soviet airspace if they received the order, and the tankers would refill the bombers' fuel tanks so that they could keep a force in the air 24 hours a day, and still have enough fuel to reach their targets in the Soviet Union. This also ensured that a first strike against
9956-817: The United States and works in close cooperation with the U.S. Air Force in the development of the Lockheed Martin F-35B Lightning . No. 80 Squadron is part of the Australia, Canada and United Kingdom Reprogramming Laboratory (ACURL) at Eglin Air Force Base , Florida, and is tasked with compiling and testing the Mission Data File Sets (MDFS) for the F-35. No. 84 Squadron is located at RAF Akrotiri, operating
10087-764: The Vale of Glamorgan, RAF St Mawgan in Cornwall and RAF Valley on Anglesey. The No. 22 Group also manages the Royal Air Force Air Cadets . An RAF station is ordinarily subordinate to a group and is commanded by a group captain . Each station typically hosts several flying and non-flying squadrons or units which are supported by administrative and support wings. Front-line flying operations are focused at eight stations: Flying training takes places at RAF Barkston Heath , RAF College Cranwell , RAF Shawbury and RAF Valley , each forming part of
10218-497: The air force's V bomber fleet. These were initially armed with nuclear gravity bombs , later being equipped with the Blue Steel missile . Following the development of the Royal Navy's Polaris submarines , the strategic nuclear deterrent passed to the navy's submarines on 30 June 1969. With the introduction of Polaris, the RAF's strategic nuclear role was reduced to a tactical one, using WE.177 gravity bombs. This tactical role
10349-501: The aircraft having to fly to a lower altitude to be depressurized so a crew member could manually do the coupling. This air-to-air refueling system was used by the B-50 Superfortress Lucky Lady II of the 43rd Bomb Wing to make its famous first non-stop around-the-world flight in 1949. From 26 February to 3 March 1949, Lucky Lady II flew non-stop around the world in 94 hours and 1 minute,
10480-483: The aircraft made its mission impossible without aerial refueling. Based at Beale AFB in central California , SR-71s had to be forward-deployed to Europe and Japan prior to flying actual reconnaissance missions. These trans-Pacific and trans-Atlantic flights during deployment were impossible without aerial refueling. The SR-71's designers traded takeoff performance for better high-speed, high-altitude performance, necessitating takeoff with less-than-full fuel tanks from even
10611-408: The aircraft to be refueled (very close "line astern" formation flying) has resulted in the activity only being used in military operations ; there are no regular civilian in-flight refueling activities. Originally trialed shortly before World War II on a limited scale to extend the range of British civilian transatlantic flying boats , and then employed after World War II on a large scale to extend
10742-449: The aircraft's fuselage and causing damage. The other major difference with this system is that when contacted, the hose does not "retract" into an HDU. Instead, the hose bends depending on how far it is pushed toward the boom. If it is pushed too far, it can loop around the probe or nose of the aircraft, damage the windscreen, or cause contact with the rigid boom. If not pushed far enough, the probe will disengage, halting fueling. Because of
10873-409: The aircraft's fuselage. Some tankers have both a boom and one or more complete hose-and-drogue systems. The USAF KC-10 has both a flying boom and a separate hose-and-drogue system manufactured by Cobham . Both are on the aircraft centerline at the tail of the aircraft, so only one can be used at once. However, such a system allows all types of probe- and receptacle-equipped aircraft to be refueled in
11004-416: The area in which contact with the boom is safe. Moving outside of this envelope can damage the boom or lead to mid-air collision, for example the 1966 Palomares B-52 crash . If the receiving aircraft approaches the outer limits of the envelope, the boom operator will command the receiver pilot to correct their position and disconnect the boom if necessary. When the desired amount of fuel has been transferred,
11135-612: The arrival of jet fighters and bombers. During the early stages of the Cold War, one of the first major operations undertaken by the RAF was the Berlin Airlift , codenamed Operation Plainfire. Between 26 June 1948 and the lifting of the Russian blockade of the city on 12 May 1949, the RAF provided 17% of the total supplies delivered, using Avro Yorks , Douglas Dakotas flying to Gatow Airport and Short Sunderlands flying to Lake Havel. The RAF saw its first post-war engagements in
11266-574: The bombers' airfields could not obliterate the US's ability to retaliate by bomber. In 1958, Valiant tankers in the UK were developed with one HDU mounted in the bomb-bay. Valiant tankers of 214 Squadron were used to demonstrate radius of action by refueling a Valiant bomber non-stop from UK to Singapore in 1960 and a Vulcan bomber to Australia in 1961. Other UK exercises involving refueling aircraft from Valiant tankers included Javelin and Lightning fighters, also Vulcan and Victor bombers. For instance, in 1962
11397-528: The brothers John, Kenneth, Albert, and Walter Hunter set a new record of 553 hours 40 minutes over Chicago using two Stinson SM-1 Detroiters as refueler and receiver. Aerial refueling remained a very dangerous process until 1935, when brothers Fred and Al Key demonstrated a spill-free refueling nozzle, designed by A. D. Hunter . They exceeded the Hunters' record by nearly 100 hours in a Curtiss Robin monoplane, staying aloft for more than 27 days. The US
11528-414: The command of Air Vice-Marshal Paul Godfrey is a joint command, but sits "under the Royal Air Force." Godfrey is of equal rank to the commanders of 1, 2, 11, and 22 Groups. The new command has "responsibility for not just operations, but also generating, training and growing the force, and also owning the money and putting all the programmatic rigour into delivering new ..capabilities." UKSC headquarters
11659-594: The decline of the British Empire, global operations were scaled back, and RAF Far East Air Force was disbanded on 31 October 1971. Despite this, the RAF fought in many battles in the Cold War period. In June 1948, the RAF commenced Operation Firedog against Malayan pro-independence fighters during the Malayan Emergency . Operations continued for the next 12 years until 1960 with aircraft flying out of RAF Tengah and RAF Butterworth . The RAF played
11790-555: The delivery of Grade 2 (G2) and Grade 1 (G1) instructor training. The G2 course (approximately 4 months long) includes pilots seat conversion training, enabling the pilots to fly from both the front and back of the Viking T1. The Grade 1 syllabus allows pilots to conduct instructional sorties to cadets, and supervise flying above 500ft AGL (above ground level). G1 instructors are then allocated the ‘QGI’ (Qualified Gliding Instructor) qualification at RAF Syerston and are then able to deliver
11921-585: The development of Alexander P. de Seversky , between two planes occurred on 25 June 1923, between two Airco DH-4B biplanes of the United States Army Air Service . An endurance record was set by three DH-4Bs (a receiver and two tankers) on 27–28 August 1923, in which the receiver airplane remained aloft for more than 37 hours using nine mid-air refueling to transfer 687 US gallons (2,600 L) of aviation gasoline and 38 US gallons (140 L) of engine oil. The same crews demonstrated
12052-402: The drogue under the appropriate pressure (assuming the tanker crew has energized the pump). Tension on the hose is aerodynamically 'balanced' by a motor in the HDU so that as the receiver aircraft moves fore and aft, the hose retracts and extends, thus preventing bends in the hose that would cause undue side loads on the probe. Fuel flow is typically indicated by illumination of a green light near
12183-569: The first hint of something abnormal, a controller has the option to put them on a higher level of alert, 'a call to cockpit'. In this scenario the pilot races to the hardened aircraft shelter and does everything short of starting his engines". On 4 October 2015, a final stand-down saw the end of more than 70 years of RAF Search and Rescue provision in the UK. The RAF and Royal Navy's Westland Sea King fleets, after over 30 years of service, were retired. A civilian contractor, Bristow Helicopters , took over responsibility for UK Search and Rescue, under
12314-554: The flying boom system, along with Australia (KC-30A), the Netherlands (KDC-10), Israel (modified Boeing 707), Japan (KC-767), Turkey (KC-135Rs), and Iran (Boeing 707 and 747). The system allows higher fuel flow rates (up to 1,000 US gallons (3,800 L) / 6,500 pounds (2,900 kg) per minute for the KC-135, but does require a boom operator, and can only refuel one aircraft at a time. The probe-and-drogue refueling method employs
12445-455: The great bulk of the RAF's bombing campaign, mainly due to Harris, but it also developed precision bombing techniques for specific operations, such as the infamous "Dambusters" raid by No. 617 Squadron , or the Amiens prison raid known as Operation Jericho . Following victory in the Second World War, the RAF underwent significant re-organisation, as technological advances in air warfare saw
12576-676: The highest scoring pilot of the war. Following a British victory, the RAF remained in the South Atlantic to provide air defence to the Falkland Islands, with the McDonnell Douglas Phantom FGR2 based at RAF Mount Pleasant which was built in 1984. With the end of the Cold War and the collapse of the Soviet Union, the RAF's focus returned to expeditionary air power . Since 1990, the RAF has been involved in several large-scale operations, including
12707-399: The hose several feet into the HDU and solidly couple the probe and drogue. Too little closure will cause an incomplete connection and no fuel flow (or occasionally leaking fuel). Too much closure is dangerous because it can trigger a strong transverse oscillation in the hose, severing the probe tip. The optimal approach is from behind and below (not level with) the drogue. Because the drogue
12838-458: The hose was connected, the tanker climbed sufficiently above the receiver aircraft to allow the fuel to flow under gravity. When Cobham was developing his system, he saw the need as purely for long-range transoceanic commercial aircraft flights, but modern aerial refueling is used exclusively by military aircraft. In 1934, Cobham had founded Flight Refuelling Ltd (FRL) and by 1938 had used its looped-hose system to refuel aircraft as large as
12969-460: The hose which would cut off if contact was lost. Royal Air Force officer Richard Atcherley had observed the dangerous aerial-refueling techniques in use at barnstorming events in the US and determined to create a workable system. While posted to the Middle East he developed and patented his 'crossover' system in 1934, in which the tanker trailed a large hooked line that would reel in
13100-478: The late 1940s, General Curtis LeMay , commander of the Strategic Air Command (SAC), asked Boeing to develop a refueling system that could transfer fuel at a higher rate than had been possible with earlier systems using flexible hoses, resulting in the flying boom system. The B-29 was the first to employ the boom, and between 1950 and 1951, 116 original B-29s, designated KB-29Ps, were converted at
13231-782: The latest 2010 Strategic Defence and Security Review, the BAE Systems Nimrod MRA4 maritime patrol aircraft was cancelled due to over spending and missing deadlines. Other reductions saw total manpower reduced by 5,000 personnel to a trained strength of 33,000 and the early retirement of the Joint Force Harrier aircraft, the BAE Harrier GR7/GR9 . In recent years, fighter aircraft on Quick Reaction Alert (QRA) have been increasingly required to scramble in response to Russian Air Force aircraft approaching British airspace. On 24 January 2014, in
13362-484: The longest runways. Once airborne, the Blackbird would accelerate to supersonic speed using afterburners to facilitate structural heating and expansion. The magnitude of temperature changes experienced by the SR-71, from parked to its maximum speed, resulted in significant expansion of its structural parts in cruise flight. To allow for the expansion, the Blackbird's parts had to fit loosely when cold, so loosely, in fact, that
13493-475: The more maneuverable fighter/ground attack types. A byproduct of this development effort and the building of large numbers of tankers was that these tankers were also available to refuel cargo aircraft , fighter aircraft , and ground attack aircraft , in addition to bombers, for ferrying to distant theaters of operations. This was much used during the Vietnam War , when many aircraft could not have covered
13624-527: The much improved probe-and-drogue system, with a modified Gloster Meteor F.3 jet fighter, serial EE397 , fitted with a nose-mounted probe. On 7 August 1949, the Meteor flown by FRL test pilot Pat Hornidge took off from Tarrant Rushton and remained airborne for 12 hours and 3 minutes, receiving 2,352 imperial gallons (10,690 L) of fuel in ten refuelings from a Lancaster tanker. Hornidge flew an overall distance of 3,600 mi (5,800 km), achieving
13755-456: The newer jet-powered military aircraft to slow down to mate with the tanker's boom, a highly serious issue with the newer supersonic aircraft coming into service at that time, which could force such receiving aircraft in some situations to slow down enough to approach their stall speed during the approach to the tanker. It was no surprise that, after the KC-97, Boeing began receiving contracts from
13886-431: The northern sector of UK airspace, while Coningsby covers the southern sector. Typhoon pilot Flight Lieutenant Noel Rees describes how QRA duty works. "At the start of the scaled QRA response, civilian air traffic controllers might see on their screens an aircraft behaving erratically, not responding to their radio calls, or note that it's transmitting a distress signal through its transponder. Rather than scramble Typhoons at
14017-478: The occasion on 10 July 2018 with a flypast over London consisting of 103 aircraft. Between March 2020 and 2022, the RAF assisted with the response efforts to the COVID-19 pandemic in the United Kingdom as part of Operation Rescript . This saw the service provide repatriation flights and aeromedical evacuations of COVID-19 patients, drivers and call-handlers to support ambulance services and medics to assist with
14148-506: The outbreak of World War II. During the closing months of World War II, it had been intended that Tiger Force 's Lancaster and Lincoln bombers would be in-flight refueled by converted Halifax tanker aircraft, fitted with the FRL's looped-hose units, in operations against the Japanese homelands , but the war ended before the aircraft could be deployed. After the war ended, the USAF bought
14279-499: The physical defence and maintenance of sovereignty of the British Overseas Territories and enable the UK to conduct expeditionary military operations . Although command and oversight of the bases is provided by Strategic Command , the airfield elements are known as RAF stations. Four RAF squadrons are based overseas. No. 17 Test and Evaluation Squadron is based at Edwards Air Force Base , California, in
14410-445: The probe into the basket. Unlike the soft canvas basket used in most drogue systems, the adapter units use a steel basket, grimly known as the "iron maiden" by naval aviators because of its unforgiving nature. Soft drogues can be contacted slightly off center, wherein the probe is guided into the hose receptacle by the canvas drogue. The metal drogue, when contacted even slightly off center, will pivot out of place, potentially "slapping"
14541-585: The probe is a valve that is closed until it mates with the drogue's forward internal receptacle, after which it opens and allows fuel to pass from tanker to receiver. The valves in the probe and drogue that are most commonly used are to a NATO standard and were originally developed by the company Flight Refuelling Limited in the UK and deployed in the late 1940s and 1950s. This standardization enables drogue-equipped tanker aircraft from many nations to refuel probe-equipped aircraft from other nations. The NATO-standard probe system incorporates shear rivets that attach
14672-414: The range of strategic bombers , aerial refueling since the Vietnam War has been extensively used in large-scale military operations. Some of the earliest experiments in aerial refueling took place in the 1920s; two slow-flying aircraft flew in formation, with a hose run down from a hand-held fuel tank on one aircraft and placed into the usual fuel filler of the other. The first mid-air refueling, based on
14803-420: The range of 35–40% have been estimated for long-haul flights (including the fuel used during the tanker missions). Usually, the aircraft providing the fuel is specially designed for the task, although refueling pods may be fitted to existing aircraft designs in the case of "probe-and-drogue" systems. The cost of the refueling equipment on both tanker and receiver aircraft and the specialized aircraft handling of
14934-462: The receiver aircraft is topped-off with extra fuel in the air, air refueling can allow a takeoff with a greater payload which could be weapons, cargo, or personnel: the maximum takeoff weight is maintained by carrying less fuel and topping up once airborne. Aerial refueling has also been considered as a means to reduce fuel consumption on long-distance flights greater than 3,000 nautical miles (5,600 km; 3,500 mi). Potential fuel savings in
15065-430: The refueling valve to the end of the probe. This is so that if a large side or vertical load develops while in contact with the drogue, the rivets shear and the fuel valve breaks off, rather than the probe or receiver aircraft suffering structural damage. A so-called "broken probe" (actually a broken fuel valve, as described above) may happen if poor flying technique is used by the receiver pilot, or in turbulence. Sometimes
15196-419: The same aircraft type. Some schools operate with only one squadron, and have an overall training throughput which is relatively small; some, like No. 3 Flying Training School , have responsibility for all Elementary Flying Training (EFT) in the RAF, and all RAF aircrew will pass through its squadrons when they start their flying careers. No. 2 Flying Training School and No. 6 Flying Training School do not have
15327-592: The same flight, such as the KC-10, MPRS KC-135, or Airbus A330 MRTT. The development of the KC-97 and Boeing KC-135 Stratotankers was pushed by the Cold War requirement of the United States to be able to keep fleets of nuclear -armed B-47 Stratojet and B-52 Stratofortress strategic bombers airborne around-the-clock either to threaten retaliation against a Soviet strike for mutual assured destruction , or to bomb
15458-473: The same year, but these early experiments were not yet regarded as a practical proposition, and were generally dismissed as stunts. As the 1920s progressed, greater numbers of aviation enthusiasts vied to set new aerial long-distance records, using inflight air refueling. One such enthusiast, who would revolutionize aerial refueling was Sir Alan Cobham , member of the Royal Flying Corps in World War I , and
15589-475: The staffing of hospitals, testing units and vaccination centres. Under Operation Broadshare , the RAF has also been involved with COVID-19 relief operations overseas, repatriating stranded nationals and delivering medical supplies and vaccines to British Overseas Territories and military installations. The UK's 20-year long operations in Afghanistan came to an end in August 2021, seeing the largest airlift since
15720-624: The transoceanic distances without aerial refueling, even with intermediate bases such as Hickam Air Force Base , Hawaii and Kadena Air Base , Okinawa. In addition to allowing the transport of the aircraft themselves, the cargo aircraft could also carry matériel , supplies, and personnel to Vietnam without landing to refuel. KC-135s were also frequently used for refueling of air combat missions from air bases in Thailand. The USAF SR-71 Blackbird strategic reconnaissance aircraft made frequent use of air-to-air refueling. Indeed, design considerations of
15851-522: The two aircraft disconnect and the receiver aircraft departs the formation. When not in use, the boom is stored flush with the bottom of the tanker's fuselage to minimize drag. In the KC-97 and KC-135 the boom operator lies prone, while the operator is seated in the KC-10 , all viewing operations through a window at the tail. The KC-46 seats two operators at the front of the aircraft viewing camera video on 3D screens. The US Air Force fixed-wing aircraft use
15982-775: The utility of the technique on 25 October 1923, when a DH-4 flew from Sumas, Washington , on the Canada–United States border , to Tijuana, Mexico , landing in San Diego , using mid-air refuelings at Eugene, Oregon , and Sacramento, California . Similar trial demonstrations of mid-air refueling technique took place at the Royal Aircraft Establishment in England and by the Armée de l'Air in France in
16113-465: The valve is retained in the tanker drogue and prevents further refueling from that drogue until removed during ground maintenance. A "buddy store" or "buddy pod" is an external pod loaded on an aircraft hardpoint that contains a hose and drogue system (HDU). Buddy stores allow fighter / bomber aircraft to be reconfigured for "buddy tanking" other aircraft. This allows an air combat force without dedicated/specialized tanker support (for instance,
16244-555: The war was the strategic bombing campaign against Germany by Bomber Command. While RAF bombing of Germany began almost immediately upon the outbreak of war at first it was ineffectual; it was only later, particularly under the leadership of Air Chief Marshal Harris , that these attacks became increasingly devastating, from early 1943 onward, as new technology and greater numbers of superior aircraft became available. The RAF adopted night-time area bombing on German cities such as Hamburg and Dresden . Night time area bombing constituted
16375-666: Was continued by the V bombers into the 1980s and until 1998 by the Panavia Tornado GR1 . For much of the Cold War the primary role of the RAF was the defence of Western Europe against potential attack by the Soviet Union , with many squadrons based in West Germany . The main RAF bases in RAF(G) were RAF Brüggen , RAF Gutersloh , RAF Laarbruch and RAF Wildenrath – the only air defence base in RAF(G). With
16506-470: Was eventually modified by Airspeed to Cobham's specification, for a non-stop flight from London to India , using in-flight refueling to extend the plane's flight duration. Meanwhile, in 1929, a group of US Army Air Corps fliers, led by then Major Carl Spaatz , set an endurance record of over 150 hours with a Fokker C-2A named the Question Mark over Los Angeles. Between 11 June and 4 July 1930,
16637-417: Was mainly concerned about transatlantic flights for faster postal service between Europe and America. In 1931 W. Irving Glover, the second assistant postmaster, wrote an extensive article for Popular Mechanics concerning the challenges and the need for such a regular service. In his article he even mentioned the use of aerial refueling after takeoff as a possible solution. At Le Bourget Airport near Paris,
16768-416: Was publicly demonstrated for the first time in 1935. In the system the receiver aircraft, at one time an Airspeed Courier , trailed a steel cable which was then grappled by a line shot from the tanker, a Handley Page Type W10 . The line was then drawn back into the tanker where the receiver's cable was connected to the refueling hose. The receiver could then haul back in its cable bringing the hose to it. Once
16899-495: Was pumped. Some historic systems used for pioneering aerial refueling used the grappling method, where the tanker aircraft unreeled the fuel hose and the receiver aircraft would grapple the hose midair, reel it in and connect it so that fuel can be transferred either with the assistance of pumps or simply by gravity feed . This was the method used on the Question Mark endurance flight in 1929. The probe-and-drogue system
17030-660: Was renamed the Air Cadet Central Gliding School in 1984. It delivered gliding instruction and air experience to Air Training Corps cadets. Gliding Instructors from the ACCGS were regulated and examined under direction of the RAF Central Flying School (CFS) at RAF Cranwell. ACCGS and CFS examiners carried out currency and competency checks annually on Volunteer Gliding Schools (VGS) and their instructors. Instruction at CGS includes
17161-473: Was so successful that in June orders went out to equip all new B-50s and subsequent bombers with receiving equipment. Two dedicated air refueling units were formed on 30 June 1948: the 43d Air Refueling Squadron at Davis-Monthan Air Force Base , Arizona , and the 509th Air Refueling Squadron at Walker Air Force Base , New Mexico . The first ARS aircraft used FRL's looped-hose refueling system, but testing with
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