Designed by Pierre Dupont, the Hanriot HD.1 biplane was small but agile. It was rejected by the French Air Service in late 1916 but found favor with the air services of Belgium and Italy, becoming the standard Italian fighter during World War I. Though not as fast as the Albatros scouts or the Hansa-Brandenburg D.I, it was sturdy, reliable and very maneuverable. Entering service during the summer of 1917, the HD.1 proved its worth throughout the war. On 26 December 1917, Italian pilots equipped with the Hanriot HD.1 engaged and destroyed eleven German reconnaissance aircraft at Istrana without incurring a single loss. Willy Coppens, Belgium's consummate balloon buster, scored most of his victories flying this aircraft. Squadrons Belgian Air Service: 1?e, 9me, 10me, 11me Specifications Country: France Manufacturer: Soci??EAnonyme des Appareils d'Aviation Hanriot Type: Fighter First Introduced: 1916 Number Built: 831 Engine(s): Le Rh?e 9JB, 9 cylinder, air cooled rotary, 120 hp Wing Span: 28 ft 6? in [8.7 m] Length: 19 ft 2? in [5.85 m] Height: 9 ft 7? in [2.94 m] Empty Weight: [385 kg] Gross Weight: 1,334 lb [605 kg] Max Speed: 115 mph [184 km/h] Ceiling: 20,670 ft [6,000 m] Endurance: 2? hours Crew: 1 Armament: 1 machine gun Aircraft Guests Search Copyright ? 1997-2002 Page revised on 09 January 2005