The Pup was a single-seat parasol wing monoplane with an Ava flat-four pusher engine mounted on the wing trailing edge. The wings could be folded back for storage. The Pup registeredG-AELR first flew in July 1936.
In 1937 the Pup was fitted with a 36 hp (27 kW) Bristol Cherub engine, a taller landing gear and a modified rudder. In August 1938 it crashed and was destroyed on takeoff.