Utility production of basically 12 and 14hp models
continue along with the Beaverette. Standard 14 Van 12-cwt have a beam-type front axle, unlike a 10-cwt version (also for the RAF) which have the 12 HP engine, 8 ft 4 in (v. 9 ft) wheelbase and independent front suspension. 20 HP chassis differ from the 14 HP in having a six-cylinder engine of 2664-cc and 9 ft 8 in (v. 9 ft) wheelbase. Bore and stroke are the same as for the four-cylinder 14 HP, namely 73 x 106 mm. The bonnet is slightly longer. The RAF use similar ambulances on the 14 HP chassis, for domestic use. Their bodywork and finish, however, are more austere.
Standard 14 HP 12-cwt Van of the Royal Air Force. This van have forward end of saloon; others have a rather square cab and a wire-mesh radiator grille.
Standard Flying Twenty chassis with ambulance bodywork and canvas top cab.