| INTA HM.1 | |
|---|---|
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| An HM. 1 at the Museo del Aire, Cuatro Vientos, Madrid. | |
| Role | Primary trainer | 
| National origin | Spain | 
| Manufacturer | Aeronáutica Industrial S.A. | 
| Designer | Pedro Huarte-Mendicoa | 
| First flight | 1943 | 
| Number built | 200 | 
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. (AISA).[1]
Development
The HM.1 was designed by INTA as a two-seat primary training monoplane with a fixed tailwheel landing gear.[1] It was followed by a number of similar aircraft with equipment and accommodation changes.[1] 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.[1]
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
Specification HM.1
Data from Jane's Fighting Aircraft of World War II[2]
General 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)
 
References
Notes
Bibliography
- Bridgman, Leonard (1988). Jane's Fighting Aircraft of World War II. New York: Crescent Books. ISBN 0-517-67964-7.
 - The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
 
External links
 Media related to Huarte Mendicoa HM-1 at Wikimedia Commons
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