Hurel-Dubois HD.10

https://en.wikipedia.org/wiki/Hurel-Dubois_HD.10

The Hurel-Dubois HD.10 was a French research aircraft first flown in 1948 to
investigate Maurice Hurel's ideas about high aspect ratio wings. It was a
single-seat monoplane with retractable tricycle undercarriage and twin tails,
featuring a very high aspect-ratio wing of 32.5:1. This was mounted above the
aircraft's enclosed cockpit and braced with struts. Construction was of metal
throughout. Between 1948 and 1954, this aircraft accumulated some 218 hours 27
minutes of flight time and is now preserved in the Musée de l'Air et de l'Espace
in Paris.


Role
Research aircraft

National origin
France

Manufacturer
Hurel-Dubois

First flight
25 August 1948

Retired
28 September 1954

Number built
1

Specifications

General characteristics
Crew: 1
Length: 5.15 m (16 ft 11 in)
Wingspan: 12.00 m (39 ft 4 in)
Height: 1.55 m (5 ft 1 in)
Wing area: 4.50 m2 (48.4 sq ft) [2]
Aspect ratio: 32.5:1[2]
Gross weight: 480 kg (1,058 lb)
Powerplant: 1 × Praga D air-cooled flat four, 56 kW (75 hp)

Performance
Maximum speed: 250 km/h (160 mph, 130 kn)
Range: 1,000 km (620 mi, 540 nmi)
Service ceiling: 5,000 m (16,000 ft)



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