page_title: English Electric Canberra
section_title: Royal Air Force
hierarchical_section_title: English Electric Canberra / Operational history / Royal Air Force
caption_attribution_description: English: English Electric Canberra PR.3 WE140 of 540 Squadron RAF at London Heathrow airport
context_page_description: The English Electric Canberra is a British first-generation jet powered medium bomber. It was developed by English Electric during the mid-to-late 1940s in response to a 1944 Air Ministry requirement for a successor to the wartime de Havilland Mosquito fast bomber. Among the performance requirements for the type was the demand for an outstanding high-altitude bombing capability and high speed. These were partly accomplished by making use of newly developed jet propulsion technology. When the Canberra was introduced to service with the Royal Air Force, the type's first operator, in May 1951, it became the service's first jet-powered bomber.
  Throughout most of the 1950s, the Canberra could fly at a higher altitude than any other aircraft in the world. In 1957, a Canberra established a world altitude record of 70,310 feet. In February 1951, another Canberra set another world record when it became the first jet aircraft to make a non-stop transatlantic flight.
context_section_description: The Canberra B.2 started to enter service with 101 Squadron in January 1951, with 101 Squadron being fully equipped by May, and a further squadron, No. 9 Squadron equipping by the end of the year. The production of the Canberra was accelerated as a result of the outbreak of the Korean War, orders for the aircraft increased and outpaced production capacity, as the aircraft was designated as a "super priority". A further five squadrons were able to be equipped with the Canberra by the end of 1952; however, production in the 1951–52 period had only been half of the level planned, due to shortages in skilled manpower, material, and suitable machine tools.
  The Canberra replaced Mosquitos, Lincolns and Washingtons as front line bombers, showing a drastically improved performance, and proving to be effectively immune from interception during air defence exercises until the arrival of the Hawker Hunter. The Canberra also replaced the RAF's Mosquitos in the reconnaissance role, with the Canberra PR.3 entering service in December 1952. The improved Canberra B.6, with more powerful engines and a greater fuel capacity, started to supplement the B.2s in the UK based squadrons of Bomber Command from June 1954, when they replaced 101 Squadrons B.2s. This freed up older B.2s to allow Canberra squadrons to form overseas, with bomber and reconnaissance Canberra wings forming in RAF Germany and on Cyprus, with squadrons also being deployed to the Far East.
  The PR.7 variant of the Canberra, fitted with Avon 109 engines, executed a 1953 reconnaissance flight over the Soviet rocket launch and development site at Kapustin Yar, although the UK government has never admitted the existence of such a flight. Warned by either radar or agents inside the British government, the Soviets slightly damaged one aircraft. Further reconnaissance flights are alleged to have taken place along, and over, the borders of the Soviet Union in 1954 under the code name Project Robin, using the Canberra B.2 WH726. The USAF also used the Canberra for reconnaissance flights. The aircraft were no longer required after June 1956, following the introduction of the US Lockheed U-2 purpose-built reconnaissance aircraft; Project Robin was then terminated. These RAF Canberra overflights were later featured in the 1994 BBC Timewatch episode; "Spies in the Sky", and included interviews with some of the Soviet MiG-15 pilots who had attempted to intercept them.
  The Canberra was the victorious aircraft flown in The Last Great Air Race from London to Christchurch in 1953, piloted by Flight Lieutenant Roland (Monty) Burton, which touched down at Christchurch 41 minutes ahead of its closest rival, after 23 hours and 51 minutes in the air; to this day the record has never been broken.
  The Vickers Valiant entered service in 1955, capable of carrying much heavier weapon loads (including the Blue Danube nuclear weapon) over longer ranges than the Canberra. This led to the Bomber Command force of Canberras equipped for high-level conventional bombing to be gradually phased out. This did not mean the end of the Canberra in front line service, as it proved suitable for the low-level strike and ground attack role, and versions dedicated to this role were brought into service. The interim B(I).6, converted from the B.6 by adding provision for a pack of four Hispano 20 mm cannon in the rear bomb bay and underwing pylons for bombs and rockets, entered service in 1955, with the definitive, new build B(I).8, which added a new forward fuselage with a fighter-style canopy for the pilot, entering service in January 1956.
  An important role for the new low-level force was tactical nuclear strike, using the Low Altitude Bombing System (LABS) to allow a nuclear bomb to be delivered from low level while allowing the bomber to escape the blast of the weapon. RAF Germany's force of four squadrons equipped with the B(I).6 and B(I).8 could carry US-owned Mark 7 nuclear bombs from 1960, which were replaced by B43 nuclear bombs, also US-owned, from 1965. Three squadrons based on Cyprus and one at Singapore were
caption: Canberra PR.3 of No. 540 Squadron RAF at London Heathrow in June 1953
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