Model Variants (Including Prototypes)
S.A. - Base Series Designation
A.1 - Initial production model; fitted with Le Rhone 9C engine of 80 horsepower; tapered tail fin; 11 examples completed.
A.2 - Fitted with Le Rhone 9J engine of 110 horsepower; revised tail fin; 35 examples completed.
A.3 - Dual-control trainer; 2 x 0.303 Lewis guns, one per crewman for training purposes; powered by Le Rhone 9J engine.
A.4 - Based on A.2 with Le Rhone 9C engine; 59 examples produced.
S.D. - Dimensionally larger variant; additional gunner's tub fitted aft of the pilot; powered by Renault 8Fg engine of 220 horsepower.
S.G. - Sans gunner's position; nacelle-mounted machine guns; 2 examples completed.
S.H. - Proposed variant