
Описание
Страна: Франция
Год: 1918
J.Davilla, A.Soltan French Aircraft of the First World War (Flying Machines)
Hanriot HD.7
The Hanriot HD.7 was designed to meet the 1918 C1 classification calling for a single-seat fighter with twin machine guns and the ability to carry a camera for high-speed photoreconnaissance. Aircraft designed to meet this category and which were also powered by the 300-hp Hispano-Suiza 8F engine included the SPAD 18 Ca.1, SPAD 21, SPAD 22, Nieuport 29, Descamps 27, De Marcay C1, SAB.1, Moineau monoplane, Semenaud fighter, and the Hanriot HD.7.
The Hanriot HD.7 combined features from both the HD.3 and the HD.6. The wings and tail were basically the same as those on the HD.3, and the rudder was similar to that of the HD.6. The fuselage cowling closely surrounded the Hispano-Suiza 8F and twin Lamblin radiators were mounted on pylons which projected the units well below the fuselage. The placement of the radiators so close to the ground virtually assured that they would be damaged or torn off on landing. The fuselage was a redesign of that used on the HD.3, the most obvious changes being the provision of a single cockpit, elimination of the observer's station and machine gun ring, and modifications of the forward fuselage to permit mounting the Hispano-Suiza engine. Armament consisted of twin 7.7-mm Vickers machine guns.
The aircraft was test flown at Buc in November 1918 and later at Villacoublay. While its performance was respectable, it was inferior to the eventual winner of the competition, the Nieuport 29. No further development of the HD.7 was undertaken.
HD.7 Single-Seat Fighter with 300-hp Hispano- Suiza 8F
Span 9.80 m (some sources say 9.00 m); length 7.20 m; height 3.00 m; wing area 28.00 sq. m (25.5 sq. m)
Empty weight 1,230 kg; loaded 1,900 kg
Maximum speed: 214 km; climb to 5,000 m in 19 minutes 20 seconds; ceiling 7,250 m; range 900 km
Armament: twin synchronized 7.7 mm Vickers machine guns
One built
Hanriot HD.8
Considerable confusion exists as to the true identity of the aircraft carrying the HD.8 designation. It was built in 1922, and our source suggests it was based on the HD.7 but powered by a different motor. This version was flown in 1922 and had a maximum speed of 150 km/h. It is listed as being intended to meet the C1 classification for the navy, but further details or specifications and performance are lacking. The same source gives the 80-hp Le Rhone 9C engine as the power plant, but this seems to be a ridiculously outdated engine for use in a fighter.
It has also been suggested that the HD.8 was actually based on the HD 1 but fitted with a 170-hp Lc Rhone 9R engine. It seems this engine was quite troublesome and that the HD.8 (if, indeed, that was the identity of the aircraft powered by this engine) was test-flown in early 1918 by the company. As the type was not submitted for official testing, it is probable that the difficulties with the power plant were never actually solved. The specifications given below are for this aircraft
HD.8 Single-Seat Fighter with 170-hp Le Rhone 9R
Span 9.60 m; length 6.15 m; wing area 25 sq. m
Empty weight 480 kg; loaded weight 690 kg
Maximum speed: 200 km/h at 4,000 m; endurance 2 hours
Armament: two 7.7-mm Vickers machine guns (provisional)
One built
Описание:
- J.Davilla, A.Soltan French Aircraft of the First World War (Flying Machines)
- W.Green, G.Swanborough The Complete Book of Fighters
Фотографии
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J.Davilla, A.Soltan - French Aircraft of the First World War /Flying Machines/
The Hanriot HD.7 was designed to meet the 1918 C1 requirement. The Nieuport 29 won the competition and was selected for mass production.
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W.Green, G.Swanborough - The Complete Book of Fighters
Flown in 1918, the HD.7 was unsuccessful in competition with the Nieuport 29.
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J.Davilla, A.Soltan - French Aircraft of the First World War /Flying Machines/
The Hanriot HD.7 combined features from both the HD.3 and the HD.6. The wings and tail were basically the same as those found on the HD.3, and the rudder was similar to that found on the HD.6.