Usually, planes were identified by their year of build, number of seats, engine, and horsepower. Thus Hanriot's first aeroplane was the '1907 monoplane', type IV was the '1911 the designation HD. was kept for aircraft already in production, but the prefix was changed to LH. for new designs. Hanriot aircraft adopted the single letter 'H , However, French and British aircraft production was still essentially needed for domestic use so that deliveries to Belgium were slow and in limited numbers. To be able to rely on yet another source for fighter aircraft procurement, the Belgian authorities turned to the French constructor Hanriot which produced the nimble but very maneuverable , production : 17.31 [tonkm/hour] oil and fuel consumption per tonkm : 1.53 [kg] _ I_°==/ ° Literature : Praktisch handboek vliegtuigen deel 1 page 153. Fighters 1914-19 page 66. Jane´s fighting aircraft WWI page 114. DISCLAIMER Above calculations are based on published data, they must be. regarded as indication not as facts., The Hanriot HD.1 was a French World War I single seat fighter. Rejected for service with French squadrons in favour of the SPAD S.7, the type was supplied to the Belgians and the Italians with whom it proved highly successful. 831 of a total production of about 1200 were in fact produced by Italian companies under licence.. Development and Production. The Hanriot company produced a series of , The nimble Hanriot H.D.1 was never accepted by France's Aviation Militaire, probably because it used the same engine as the Nieuport 16 and 17, which was already in production.It found great proponents, though, in Italy and Belgium and (after the war) Switzerland. It was unusual in having pronounced dihedral in the upper wing but none in the lower, a design which may have improved pilot sight , Production list - Aviation website for aircraft and airline information (flight, photo, travel, fleet listing, production list of Airbus Boeing Douglas Embraer Dash, ATR, Sukhoi, Saab), plane photos for planespotters, flightlog database, aviation news, aviation store..