Armstrong Whitworth Apollo Department at RAE Farnborough. The aircraft fuselage was used at Farnborough for water tank pressure testing until it was scrapped in the 1970s. Armstrong Whitworth Apollo The Armstrong Whitworth AW.55 Apollo was a 1940s British four-engine turboprop airliner built by Armstrong Whitworth at Baginton. The aircraft was in competition with the Vickers Viscount but was beset with engine problems and only two were built. The requirement resulted from the Brabazon Committee's Type II design, calling for a small, medium-range pressurized aircraft to fly its less-travelled routes which became Air Ministry Specification C.16/46 for an aircraft able to carry 24-30 passengers
Lockheed L-188 Electra de la Aviación Naval) at Bahía Blanca. As of July 2018, a total of 2 Electras remain in active airliner service. Other aircraft are in service as air tankers as follows: Of the total of 170 Electras built, as of June 2011, 58 have been written off because of crashes and other accidents. Lockheed L-188 Electra The Lockheed L-188 Electra is an American turboprop airliner built by Lockheed. First flown in 1957, it was the first large turboprop airliner built in the United States. Initial sales were good, but after two fatal crashes that led to expensive modifications to fix