INTA HM.1

The INTA HM.1, also known as Huarte Mendicoa HM-1, was a 1940s Spanish primary trainer designed by the Instituto Nacional de Técnica Aeronáutica (INTA) and built for them by Aeronáutica Industrial S.A..

Development
The HM.1 was designed by INTA as a two-seat primary training monoplane with a fixed tailwheel landing gear. It was followed by a number of similar aircraft with equipment and accommodation changes. The last of the family was the HM.7 built in 1947 which was an enlarged four-seat version powered by a 240 hp (179 kW) Argus As 10C engine, the HM.7 was the last powered aircraft designed by the Institute.

Variants

 * HM.1
 * Two-seat primary trainer


 * HM.2
 * enclosed-cabin version of the HM.1 with retractable landing gear.


 * HM.3
 * open-cockpit floatplane variant


 * HM.5
 * single-seat advanced trainer


 * HM.7
 * enlarged four-seat version


 * HM.9
 * two-seat glider tug

Operators

 * Spanish Air Force
 * Spanish Air Force