Avia 57
Introduction The '''Avia 57''' was a 1930s Czechoslovak 14-passenger commercial transport, designed by Robert Nebesář and built by Avia. The type was not a success.
Development The Avia 57 was a three-engined low-wing monoplane that first flew in 1935.Powered by three Hispano-Suiza 9Vd radial engines, it had landing gear that retracted into the nacelles of the wing-mounted engines.
Specifications
References ===Notes======Bibliography===*