Hanriot HD.8

Single-Seat, Single-Engine Fighter Prototype

France | 1918

"The single-example Hanriot HD.8 was done in by its experimental engine fit - the Le Rhone 9R - which proved troublesome in development."

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Hanriot HD.8 Single-Seat, Single-Engine Fighter Prototype.

1 x Le Rhone 9R 9-cylinder air-cooled rotary engine developing 180 horsepower and driving a two-bladed propeller unit at the nose.
Propulsion

124 mph
200 kph | 108 kts
Max Speed

249 miles
400 km | 216 nm
Operational Range

Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Hanriot HD.8 Single-Seat, Single-Engine Fighter Prototype.

1
(MANNED)
Crew

20.2 ft
6.15 m
O/A Length

31.5 ft
(9.60 m)
O/A Width

1,058 lb
(480 kg)
Empty Weight

1,543 lb
(700 kg)
MTOW

Armament
Available supported armament and special-mission equipment featured in the design of the Hanriot HD.8 Single-Seat, Single-Engine Fighter Prototype .

ASSUMED:
2 x 7.7mm Vickers Machine Guns in fixed, forward-facing mountings over the nose synchronized to fire through the spinning propeller blades.

Variants
Notable series variants as part of the Hanriot HD.8 family line.

HD.8 - Base Series Designation; single, flyable prototype completed.

Authored By: Staff Writer | Last Edited: 01/29/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

The HD.8 was a single-seat, single-engine biplane fighter prototype drawn up by the Hanriot concern of France during the World War 1 period (1914-1918). It was used in conjunction with the new Le Rhone 9R series 9-cylinder, air-cooled rotary engine of 180 horsepower which resulted in only a single example of this aircraft being completed largely due to issues with the experimental powerplant. Flight testing of the completed form was had from March to April of 1918 - 1918 being the last year of the war. However, the troublesome engine never proved itself satisfactory which, in turn, resulted in an official end of the program.

As completed (and flown), the aircraft borrowed established biplane fighter qualities of pervious Hanriot designs that began with the HD.1 of June 1916 and evolved through the capable HD.3 of June 1917. A biplane wing configuration was used with the sole pilot positioned under and aft of the upper wing member. The engine drove a two-bladed propeller unit at the nose in typical fashion and a traditional tail-dragger undercarriage configuration was used for ground-running. Dimensions included an overall length of 20.1 feet and wingspan of 31.5 feet. Empty weight was 1,060lb against an MTOW of 1,520lb.

With its Le Rhone engine, the aircraft was tested at speeds reaching 125 miles-per-hour and could stay aloft for some two hours on internal fuel.

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Operators
Global customers who have evaluated and/or operated the Hanriot HD.8. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 1 Units
Contractor(s): Hanriot - France

[ France (cancelled) ]

Going Further...
The Hanriot HD.8 Single-Seat, Single-Engine Fighter Prototype appears in the following collections:

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