AA-1A - One 81kW (108hp) Lycoming O-235-C2C flat four piston engine driving a two blade fixed pitch propeller.
AA-1C - One 85kW (115hp) O-235-L2C.
AA-1A - Max speed 222km/h (120kt), max cruising speed 203km/h (110kt), long range cruising speed 180km/h (97kt). Initial rate of climb 765ft/min. Service ceiling 13,750ft. Range with no reserves 805km (435nm).
AA-1C - Max speed 233km/h (126kt), max cruising speed 217km/h (117kt), long range cruising speed 178km/h (96kt). Initial rate of climb 700ft/min. Max range with reserves 648km (350nm).
AA-1A - Empty 442kg (975lb), max takeoff 680kg (1500lb).
AA-1C - Empty 485kg (1066lb), max takeoff 726kg (1600lb).
Total AA-1 production 1822, including 461 AA-1, 470 AA-1A, 680 AA-1B, and 211 AA-1C.
Two seat light aircraft
What became Grumman's first light aircraft came from the drawing board of noted kit aircraft designer Jim Bede.
The AA-1 began life as the Bede BD-1, a small and compact design using just 385 parts and bonded honeycomb construction. The original BD-1 was powered by a 65kW (90hp) Continental C90-14, and first flew on July 11 1963. Unlike other Bede designs however the BD-1 was not intended for kit building, instead Bede renamed his company the American Aviation Corporation, and placed the BD-1 in series production at the company's Cleveland plant.
Production aircraft differed from the prototype in having a revised wing layout and vertical tail, a wider track undercarriage and a more powerful Lycoming O-235. First production aircraft were designated the AA-1 Yankee and the first were delivered in 1968, the last in 1971.
The Yankee was replaced in production by the AA-1A Trainer, with a modified wing and equipped for pilot training. It flew for the first time on March 25 1970 and was certificated in January 1971.
In 1972 the AA-1A was replaced by the AA-1B, a revised version with greater takeoff weights. The AA-1B was available as the Trainer, or as the Tr2, a superior spec deluxe version with upmarket interior trim, wheel fairings and more comprehensive standard avionics fit.
Following Grumman Corporation's acquisition of American Aviation, the AA-1 was produced under the Grumman American Aviation Corporation banner. In 1978 Grumman American introduced the further improved AA-1C with greater takeoff weights, a more powerful O-235 engine and revised tail surfaces. The AA-1C was available as the T-Cat trainer model and as the Lynx more luxurious touring model.
AA-1 production was discontinued mid 1978, just before Gulfstream acquired Grumman American.