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 == Spain Spanish Air Force

== Specification HM.1 == Data from Jane's Fighting Aircraft of World War IIGeneral characteristics Crew: 2 Length: 7.65 m (25 ft 0 in) Wingspan: 9.65 m (31 ft 8 in) Height: 2.20 m (7 ft 2.25 in) Wing area: 14 m2 (150.6 sq ft) Empty weight: 620 kg (1,364 lb) Gross weight: 850 kg (1,870 lb) Powerplant: 1 × Elizalde G-IV-B Tigre 4-cylinder four-cylinder linear motor , 110 kW (150 hp) Performance

Maximum speed: 230 km/h (142.8 mph, 124.1 kn) Cruise speed: 195 km/h (121 mph, 105 kn) Endurance: 3 hours 30 minutes Service ceiling: 5,000 m (16,400 ft)

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== External links == Media related to Huarte Mendicoa HM-1 at Wikimedia Commons