The company recognised a need for a four-seat touring aircraft to complement the three-seat Auster J/1 Autocrat. The J/5 Autocar looked similar to the Autocrat, but was a new model featuring wing-root fuel tanks and an enlarged cabin. The designation of J/5 for the Autocar followed on from its progenitor, the wartime Model J, which was designated the Auster AOP.V by the Royal Air Force. Postwar models derived from the Model J commenced with the J/1 Autocrat - note the use of J/1, not J-1. The prototype Autocar G-AJYK, a model J/5B, first flew in August 1949 and was exhibited at the Farnborough Air Showin September. A demand for a more powerful version for the tropics produced in 1950 the J/5E powered by a 155 hp Blackburn Cirrus Major engine. This was further developed as the J/5G which was first flown in 1951 and is also referred to as the Cirrus Autocar. The later J/5P reverted to a more powerful de Havilland Gipsy Major engine. Other variants were built as one-off development aircraft, and some were converted in Australia with more mordern engines.
Operations
of Cowes, Isle of Wight, acquired a J/5G Autocar and fitted it with an experimental hydro-ski undercarriage and emergency under-wing floats. With this equipment, the aircraft could remain almost stationary on the water. The majority of the production Autocars were exported to sixteen countries and later resold in five further territories. The Autocar has been primarily operated byprivate pilot owners and by aero clubs but some were used by small charter firms in the UK and elsewhere as taxi and photographic aircraft. Pest Control Ltd took delivery of five J/5G Autocars in 1952 for crop spraying operations in Sudan.
Variants
;Auster J/5B Autocar:production version with a 130 hp de Havilland Gipsy Major 1 engine. ;Auster J/5E Autocar:prototype export version with a Blackburn Cirrus Major 3 engine, one built. ;Auster J/5G Autocar:export version with a 155 hp Blackburn Cirrus Major 3 engine. ;Auster J/5GL:one Auster J/5G converted in Australia by Kingsford SmithAviation Services fitted with a Lycoming piston engine. ;Auster J/5G Super Autocar:One J/5G converted in Australia by Kingsford Smith Aviation Services with a 225 hp Continental O-470 engine. ;Auster J/5H Autocar:with 145 hp Blackburn Cirrus Major 2 engine, one rebuilt in Australia by Kingsford Smith Aviation Services from J/5B ;Auster J/5P Autocar:version with a 145 hp de Havilland Gipsy Major 10 engine. ;Auster J/5T Autocar:development aircraft with 185 hp Continental E-185-10 piston engine, one built ;Auster J/5V Autocar:development aircraft with 160 hp Lycoming O-320 engine, one built ;Kingsford Smith Bushmaster
