Aeronáutica Industrial S.A.
AISA I-11
The AISA I‑11 was a low‑wing monoplane developed in Spain during the early 1950s by Aeronáutica Industrial S.A., a company that had grown out of the pre‑civil war AISA workshops. Designed as a two‑seat trainer and liaison aircraft, the I‑11 first flew on 14 July 1952 and entered limited production the following year. Its structure combined a mixed fabric‑covered wooden wing with a metal semi‑monocoque fuselage, giving a light yet sturdy airframe that could operate from short, unprepared fields. Powered by a 115 hp Continental C‑115 flat‑four engine, the aircraft reached a maximum speed of about 210 km/h, a service ceiling of 4 500 m and a range of 800 km. The cockpit featured dual controls and a bubble canopy that provided excellent visibility for both instructor and student. Although only about 30 units were built, the I‑11 proved valuable for the Spanish Air Force’s pilot‑training syllabus and for civilian clubs, demonstrating the feasibility of modern, low‑cost trainers in post‑war Europe. Its simple design, modest operating costs and adaptability helped sustain domestic aeronautical expertise until more advanced trainers arrived later in the decade. The I‑11 remains a noteworthy example of Spanish ingenuity in mid‑century aviation.
