Armstrong Whitworth Argosy was a British three-engined biplane aircraft built by Armstrong Whitworth Aircraft and operated by Imperial Airways 1926-1935. In the vernacular as a car "flying" is known, was one of the earliest forms of air transport of passengers. Armstrong Whitworth Argosy was based on a statement of Imperial Airways, that all their plans were multi-engine design for security reasons. You must replace the old single-engine de ...