Armstrong Whitworth Apollo 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 over 1,000 mi (1,610 km) at a cruising speed of . The resulting design was the AW.55 Apollo, a low-wing cantilever monoplane with
Vickers E.F.B.1 Vickers E.F.B.1 The Vickers E.F.B.1 'Destroyer' was an early British military aircraft prototype. Although not itself a success, the design was considered worth developing, and a series of similar aircraft were produced in prototype form, eventually leading to the Vickers F.B.5 "Gunbus", which saw widespread service during World War I. The Experimental Fighting Biplane No. 1 (E.F.B.1) was designed in response to a British Admiralty requirement for an aircraft intended for an offensive role. As such, it was notable for being the first British aircraft to be specifically designed for a military role. A contract for an experimental prototype was