Auster Avis
 The Auster Avis was a four-seat light aircraft developed from the Auster Autocrat. It featured a redesigned fuselage incorporating four doors and a circular cross-section towards the tail new undercarriage and new wing flaps. It was planned in two versions the Mk 1 for civil use and the Mk 2 for military and air ambulance duties. However only two prototypes were built and Auster abandoned the project in favour of the J-5 Autocar.