Designed and built in 1950 the I-11 two-seat lightweight training/sporting aircraft. Two prototypes were built.
In 1954, AISA purchased the Spanish manufacturer Iberavia and took over the I-11 light plane project, eventually building around 400 examples as the AISA I-11B, with smaller canopy and tailwheel undercarriage.
Derived from the I-11 prototype, the I-11B differed from the production model in having a fixed nosewheel undercarriage and a larger cockpit canopy. The I-11B first flew on 16 October 1953. Inaugurated early in 1954, a production batch of 70 was built for Spanish Aero Clubs.
Some aircraft were powered by a 93 hp RNMA Flecha engine. Some 450 were built.
AISA I-11B
Engine: Continental C90-12F, 90 hp
Wingspan: 30 ft 7 in / 9.34 m
Wing area: 133.472 sq.ft
Length: 21 ft 3 in / 6.48 m
Height: 6.234 ft / 1.9 m
Empty weight: 926 lb / 421 kg
Normal TO weight: 1417 lb / 644 kg
Max TO weight semi-aerobatic: 1474 lb / 670 kg
Max. speed: 108 kt / 200 km/h
Cruise speed: 96 kt / 110 mph / 117 kph
Max ROC SL norm MTOW: 726 fpm / 200 m/min
Service ceiling: 15415 ft / 4700 m
Range: 349 nm / 403 mi / 650 km
Crew: 2
All Aero 