Auster J/1 Autocrat
Production version with Blackburn Cirrus Major engine.
Several later fitted with engines up to the 150 h.p.
Lycoming O-320-A1A.
Auster J/1A Autocrat
additional (fourth-seat) for joyriding.

Auster J/1N Alpha
powered by a de Havilland Gipsy Major I engine and with enlarged tail surfaces.

Auster J/1S Autocrat
powered by a 145 h.p.
de Havilland Gipsy Major 10 Mk 2-2 engine.

Auster J/1U Workmaster
An agricultural workhorse using a strengthened Autocrat airframe with dorsal fin fillets added, low pressure tyres and a 180 hp (134 kW) Lycoming engine.
Spray equipment was suspended from the fuselage and wings, fed by a 90 gal tank; 10 built.

Auster J/1Y
Developed from the J/1U for a Portuguese contract, powered by a 160 hp (119 kW) Avco Lycoming O-320 engine, subsequently re-designated and produced as the Auster D.5.

Auster J/2 Arrow
A two-seater development powered by a Lycoming O-145-B3 engine.

Auster J/3 Atom
Intended as a lightweight, low-powered version of the J/2, the sole J/3, powered by a 65 hp Continental A65-12, was not a success and further work was abandoned.

Auster J/4
Sales of the American engined J/2 were limited by import restrictions on the engine in the English market so Auster re-engined the two seater with a 90 hp Blackburn Cirrus Minor I to stimulate home sales.

Auster J/4 Archer
The name for the J/4s sold in Australia.

Auster J/5
Civil version, also operated by the RNZAF and RRAF (54 aircraft)
Auster J/5A
Agricultural version with spray bars, spray tank etc. (
5 aircraft)
Auster J/5B Autocar
production version, 82 built.

Auster J/5E Autocar
prototype export version with a Blackburn Cirrus Major 3 engine.

Auster J/5F Aiglet Trainer
Production version, 92 built.

Auster J/5G Autocar
export version with a Blackburn Cirrus Major 3 engine, 94 built.

Auster J/5GL
One Auster J/5G fitted with a Lycoming piston engine.

Auster J/5H Autocar
with Blackburn Cirrus Major 2 engine, one rebuilt from J/5B
Auster J/5K Aiglet Trainer
Blackburn Cirrus Major 3 engine, one built.

Auster J/5L Aiglet Trainer
de Havilland Gipsy Major 1 engine.
27 built.

Auster J/5P Autocar
version with a de Havilland Gipsy Major 1 engine, 24 built.

Auster J/5Q Alpine
Lower powered version of the J/5R with a de Havilland Gipsy Major 1 engine, 4 built.

Auster J/5R Alpine
production version with de Havilland Gipsy Major 10 engine, 6 built.

Auster J/5T Autocar
development aircraft with 185 hp (138 kW) Continental E-185-10 piston engine, one built (G-25-4, c/n 3421).

Auster J/5V Autocar
development aircraft with 160 hp (119 kW) Avco Lycoming O-320 engine, one built.

Auster J/8L Aiglet Trainer
J/5K re-engined with a de Havilland Gipsy Major 1 engine.
Auster J/1 Autocrat
Production version with Blackburn Cirrus Major engine. Several later fitted with engines up to the 150 h.p. Lycoming O-320-A1A.
Auster J/1A Autocrat
additional (fourth-seat) for joyriding.
Auster J/1N Alpha
powered by a de Havilland Gipsy Major I engine and with enlarged tail surfaces.
Auster J/1S Autocrat
powered by a 145 h.p. de Havilland Gipsy Major 10 Mk 2-2 engine.
Auster J/1U Workmaster
An agricultural workhorse using a strengthened Autocrat airframe with dorsal fin fillets added, low pressure tyres and a 180 hp (134 kW) Lycoming engine. Spray equipment was suspended from the fuselage and wings, fed by a 90 gal tank; 10 built.
Auster J/1Y
Developed from the J/1U for a Portuguese contract, powered by a 160 hp (119 kW) Avco Lycoming O-320 engine, subsequently re-designated and produced as the Auster D.5.
Auster J/2 Arrow
A two-seater development powered by a Lycoming O-145-B3 engine.
Auster J/3 Atom
Intended as a lightweight, low-powered version of the J/2, the sole J/3, powered by a 65 hp Continental A65-12, was not a success and further work was abandoned.
Auster J/4
Sales of the American engined J/2 were limited by import restrictions on the engine in the English market so Auster re-engined the two seater with a 90 hp Blackburn Cirrus Minor I to stimulate home sales.
Auster J/4 Archer
The name for the J/4s sold in Australia.
Auster J/5
Civil version, also operated by the RNZAF and RRAF (54 aircraft)
Auster J/5A
Agricultural version with spray bars, spray tank etc. (5 aircraft)
Auster J/5B Autocar
production version, 82 built.
Auster J/5E Autocar
prototype export version with a Blackburn Cirrus Major 3 engine.
Auster J/5F Aiglet Trainer
Production version, 92 built.
Auster J/5G Autocar
export version with a Blackburn Cirrus Major 3 engine, 94 built.
Auster J/5GL
One Auster J/5G fitted with a Lycoming piston engine.
Auster J/5H Autocar
with Blackburn Cirrus Major 2 engine, one rebuilt from J/5B
Auster J/5K Aiglet Trainer
Blackburn Cirrus Major 3 engine, one built.
Auster J/5L Aiglet Trainer
de Havilland Gipsy Major 1 engine. 27 built.
Auster J/5P Autocar
version with a de Havilland Gipsy Major 1 engine, 24 built.
Auster J/5Q Alpine
Lower powered version of the J/5R with a de Havilland Gipsy Major 1 engine, 4 built.
Auster J/5R Alpine
production version with de Havilland Gipsy Major 10 engine, 6 built.
Auster J/5T Autocar
development aircraft with 185 hp (138 kW) Continental E-185-10 piston engine, one built (G-25-4, c/n 3421).
Auster J/5V Autocar
development aircraft with 160 hp (119 kW) Avco Lycoming O-320 engine, one built.
Auster J/8L Aiglet Trainer
J/5K re-engined with a de Havilland Gipsy Major 1 engine.
Auster J family