Washington (aircraft)

Washington (aircraft). The Washington was the designation applied by the Royal Air Force to eighty-eight examples of the American Boeing B-29 Superfortress strategic bomber loaned to the United Kingdom under the Mutual Defense Assistance Act during the early Cold War. Serving as an interim strategic deterrent for RAF Bomber Command from 1950 until 1958, these aircraft filled a critical capability gap before the introduction of modern British jet bombers like the English Electric Canberra and Vickers Valiant. The Washington's service represented a significant chapter in Anglo-American military cooperation and the technological evolution of the postwar RAF.

Design and development

The Washington's design was identical to the late-World War II production B-29 Superfortress, a pioneering aircraft that featured a pressurized cabin, a sophisticated Central Fire Control system for its remote gun turrets, and powerful Wright R-3350 Duplex-Cyclone radial engines. Its development for RAF service was not a new design process but a political and logistical arrangement to rapidly equip Bomber Command with a credible long-range nuclear delivery platform amidst rising tensions with the Soviet Union. The acquisition was facilitated through the Mutual Defense Assistance Act, bypassing the lengthy development cycle of indigenous British designs like the proposed Avro Lincoln successor. Key modifications for RAF service were minimal, primarily involving the installation of British VHF radio equipment and the repainting of national insignia, as the aircraft were intended as a temporary stopgap measure.

Operational history

Operational history of the Washington began in March 1950 when the first aircraft arrived at RAF Marham for service with No. 115 Squadron RAF. Subsequently, they equipped three frontline squadrons—No. 15 Squadron RAF, No. 35 Squadron RAF, and No. 90 Squadron RAF—based primarily at RAF Coningsby and RAF Waddington. Their primary role was to train RAF crews in the techniques of long-range strategic bombing and nuclear weapon delivery, forming a vital component of the Western deterrent against the Soviet Union during the Korean War era. The Washington's service was not without challenges, as the complex R-3350 engines required intensive maintenance and were prone to overheating, issues that had also plagued the United States Army Air Forces during the Pacific War. By the mid-1950s, with the entry into service of the jet-powered English Electric Canberra and the Vickers Valiant, the Washingtons were rapidly phased out, with the last squadron disbanding in 1958.

Variants

Only one variant of the Washington was operated by the Royal Air Force, equivalent to the standard B-29A production model. A small number of specialized TB-29 trainer and WB-29 weather reconnaissance versions may have been briefly used for crew conversion and meteorological flights, but these were not formally designated as separate variants within RAF service. All loaned aircraft were conventional bombers, and no British modifications resulted in distinct subtypes, unlike the subsequent development of the Boeing B-50 Superfortress or the Soviet reverse-engineered Tupolev Tu-4.

Operators

The sole military operator of the Washington was the Royal Air Force, specifically RAF Bomber Command. * United Kingdom ** Royal Air Force *** No. 15 Squadron RAF – RAF Coningsby *** No. 35 Squadron RAF – RAF Coningsby *** No. 90 Squadron RAF – RAF Marham, later RAF Waddington *** No. 115 Squadron RAF – RAF Marham *** No. 192 Squadron RAF – Used for electronic intelligence missions. *** The Aeroplane and Armament Experimental Establishment at Boscombe Down also operated examples for trials.

Specifications (B-29 Washington)

General characteristics * Crew: 11 (Aircraft Commander, Pilot, Flight Engineer, Bombardier, Navigator, Radio Operator, Radar Operator, four Gunners) * Length: 99 ft 0 in (30.18 m) * Wingspan: 141 ft 3 in (43.05 m) * Height: 27 ft 9 in (8.46 m) * Powerplant: 4 × Wright R-3350-23 Duplex-Cyclone 18-cylinder air-cooled radial piston engines * Maximum speed: 357 mph (574 km/h, 310 kn) * Range: 3,250 mi (5,230 km, 2,820 nmi) * Service ceiling: 31,850 ft (9,710 m) Armament * Guns: 10 × .50 in (12.7 mm) M2 Browning machine gun in remote-controlled turrets, plus 2 × .50 in machine guns and 1 × 20 mm M2 cannon in tail position * Bombs: Up to 20,000 lb (9,100 kg) internally, including conventional bombs or a single Blue Danube nuclear fission bomb.

Category:Military aircraft of the United Kingdom Category:Bomber aircraft