The Avro 638 Club Cadet was a modified version of the Avro Cadet, similarly intended for both private and club use. The Club Cadet was fitted with un-staggered wings, that could be folded to help save hangar space; the staggered biplane wings of the earlier Cadet were unsuitable to be adapted for folding. The prototype flew in May 1933, powered by an Armstrong-Siddeley "Genet Major" 135 h.p. radial piston engine, another 16 were built, and production finished in 1935.