Hanriot H.43

The Hanriot H.43 was a military utility aircraft produced in France in the late 1920s and early 1930s which was primarily used by the Aéronautique Militaire as a trainer. While Hanriot had spent most of the 1920s manufacturing further and further developments of the HD.14 that had flown in 1920, the H.43 was an entirely new design. It was a conventional single-bay biplane with staggered wings of unequal span and a fuselage of fabric-covered metal tube. Accommodation for the pilot and passenger was in tandem, open cockpits and the main units of the fixed, tailskid undercarriage were linked by a cross-axle.

H.43
H.431
Role Military utility aircraft
National origin France
Manufacturer Hanriot
First flight 1927
Primary user Aéronautique Militaire
Number built ca. 160

Design and Development

Two prototypes in 1927 were followed by the LH.431 in 1928, a much-modified version that dispensed with the sweepback used on both the upper and lower wings of the H.43, had a new tail fin and added metal covering to the sides of the fuselage. This was ordered into production by the Aéronautique Militaire, which ordered 50 examples. These were slightly different again from the LH.431 prototype, having divided main undercarriage units, wings of slightly greater area, and redesigned interplane struts.

Operational history

From 1927 to 1933, the Army would purchase nearly 150 examples for a variety of support roles including training, liaison, observation, and as an air ambulance. At the Fall of France in 1940, 75 of these aircraft remained in service.

H.43 variants were also operated by civil flying schools in France, as well as 12 examples purchased for the military of Peru

Variants
Hanriot H.43 photo from L'Air May 15, 1928
  • H.43 – prototype with Salmson CM.9 engine (2 built)
  • H.430 – version with Salmson 9Ab engine (1 under construction but never completed)
  • H.431.01 – development of H.430 with revised wings, fin, and fuselage and Lorraine 7Ma engine (1 built)
  • LH.431 – production version with divided main undercarriage units and Lorraine 7Mc engine (62 built)
  • LH.432 – gunnery training version with machine gun on ring mount in rear cockpit (1 built, plus 1 converted from LH.431)
  • LH.433 – revised LH.431 with modified landing gear and tail fin, and Lorraine 7Me engine (26 built)
  • LH.434 – (1 built)
  • H.436 – dedicated trainer version based on LH.433 with Salmson 9Ab engine (50 built)
  • LH.437 – air ambulance version based on LH.433 (1 built, plus one converted from LH.431)
    • LH.437ter – air ambulance version with Salmson engine (1 converted from LH.437. Subsequently converted back and redesignated H.437/1).
  • H.438 – export version of LH.433 for Peru (12 built)
  • H.439 – civil trainer version, some with tailwheel in place of tailskid (13 converted from LH.431).

Operators
 France
 Peru
 Spain

Specifications (H.431)
Hanriot H.43 3-view drawing from L'Air May 15, 1928

Data from Jane's all the World's Aircraft 1928[1]

General characteristics

  • Crew: 2
  • Length: 7.24 m (23 ft 9 in)
  • Wingspan: 10.6 m (34 ft 9 in)
  • Height: 4.2 m (13 ft 9 in)
  • Wing area: 53.5 m2 (576 sq ft)
  • Empty weight: 842 kg (1,856 lb)
  • Gross weight: 1,420 kg (3,131 lb)
  • Powerplant: 1 × Salmson CM.9 9-cylinder air-cooled radial piston engine, 170 kW (230 hp)
  • Propellers: 2-bladed fixed pitch propeller

Performance

  • Maximum speed: 185 km/h (115 mph, 100 kn) 180 km/h (110 mph; 97 kn) at 2,000 m (6,600 ft)
173 km/h (107 mph; 93 kn) at 4,000 m (13,000 ft)
166 km/h (103 mph; 90 kn) at 5,000 m (16,000 ft)
  • Range: 450 km (280 mi, 240 nmi)
  • Endurance: 3 hours
  • Service ceiling: 6,000 m (20,000 ft)
  • Time to altitude: 2,000 m (6,600 ft) in 8 minutes 36 seconds
4,000 m (13,000 ft) in 22 minutes 12 seconds
5,000 m (16,000 ft) in 38 minutes
  • Wing loading: 50.3 kg/m2 (10.3 lb/sq ft)
  • Power/mass: 0.1236 kW/kg (0.0752 hp/lb)

See also

Related lists

References
Wikimedia Commons has media related to Hanriot H.43.
  1. Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. p. 103c.

Further reading
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 470.
  • World Aircraft Information Files. London: Bright Star Publishing. pp. File 896 Sheet 10.
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