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|manufacturer=[[Hurel-Dubois]]
|manufacturer=[[Hurel-Dubois]]
|designer=
|designer=
|first flight=25 August {{avyear|1948}}
|first flight=25 August 1948
|introduced=
|introduced=
|retired=
|retired=28 September 1954
|status=
|status=
|primary user=
|primary user=
|more users=
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|produced=
|produced=
|number built=one
|number built=1
|variants with their own articles=
|variants with their own articles=
}}
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The '''Hurel-Dubois HD.10''' was a French research aircraft first flown in 1948 to investigate [[Maurice Hurel]]'s ideas about [[Aspect ratio (wing)|high aspect ratio wings]]. It was a single-seat monoplane with retractable tricycle undercarriage and [[twin tail]]s, 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 200 hours of flight time and is now preserved in the ''[[Musée de l'Air et de l'Espace]]'' in Paris.
The '''Hurel-Dubois HD.10''' was a French research aircraft first flown in 1948 to investigate Maurice Hurel's ideas about [[Aspect ratio (wing)|high aspect ratio wings]]. It was a single-seat monoplane with a retractable tricycle undercarriage and [[twin tail]]s, 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 and 27 minutes of flight time and is now preserved in the ''[[Musée de l'Air et de l'Espace]]'' in Paris.


==Design and development==
<!-- ==Development== -->
The French aircraft designer Maurice Hurel set up the Société des Avions Hurel-Dubois, with the industrialist Léon-Joseph Dubois, in November 1947, to develop Hurel's theories about the use of high aspect ratio wings.<ref name="am1022p85">{{harvnb|Carbonel|2022|p=85}}</ref> To demonstrate the practicality of these ideas, Hurel designed a single-engined prototype, the HD.10, with construction entrusted to the [[Pierre Levasseur (aircraft builder)|Établissements Pierre Levasseur]].<ref name="am1022p86">{{harvnb|Carbonel|2022|p=86}}</ref>

The HD.10 was a high-winged [[tractor configuration]] [[monoplane]] with the metal wing braced by single [[Bracing_(aeronautics)#Lift_struts|lift struts]] to the fuselage. [[Flap_(aeronautics)#Fowler_flap|Fowler flaps]] were fitted to the wing. The fuselage was of fabric-covered steel tube construction with the pilot sitting in an enclosed [[cockpit]] under the trailing edge of the wing. A [[twin tail]] was fitted, and the aircraft had a manually actuated retractable [[tricycle landing gear]]. The aircraft was initially powered by a {{convert|40|hp|kW|abbr=on}} [[Mathis (automobile)|Mathis]] engine.<ref name="am1022p867">{{harvnb|Carbonel|2022|pp=86–87}}</ref><ref name="jawa51 p127c"/>

The aircraft made its first flight, with Hurel at the controls, on 25 August 1948.<ref name="am1022p86"/> The aircraft was underpowered with the Mathis, and it was re-engined with a {{convert|75|hp|kW|abbr=on}} [[Praga D]]. Testing at the [[Centre d'Essais en Vol]] resulted in the aircraft's vertical tail surfaces being enlarged.<ref name="am1022p87">{{harvnb|Carbonel|2022|p=87}}</ref> It made its final flight on 20 June 1954, having completed more than 218 flight hours. It was then delivered to the [[Musée de l'Air et de l'Espace|''Musée de l'Air'']] at [[Paris–Le Bourget Airport]] for preservation and display.<ref name="am1022p87"/>
<!-- ==Operational history== -->
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==Specifications==
==Specifications==
{{Aircraft specs
{{Aircraft specs
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|wing area sqm=
|wing area sqm=
|wing area sqft=48.4
|wing area sqft=48.4
|wing area note=<ref name="jawa51 p127c">Bridgeman 1951, p. 127c.</ref>
|wing area note=<ref name="jawa51 p127c">{{harvnb|Bridgman|1951|p=127c}}</ref>
|aspect ratio=32.5:1<ref name="jawa51 p127c"/>
|aspect ratio=32.5:1<ref name="jawa51 p127c"/>
|airfoil=
|airfoil=
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|more performance=
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|avionics=
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|lists=<!-- related lists -->
|lists=<!-- related lists -->
}}
}}

==References==
==References==
{{reflist}}
{{reflist}}
* {{cite book|last=Bridgman|first=Leonard|title=Jane's All The World's Aircraft 1951–52|year=1951|publisher=Sampson Low, Marston & Company, Ltd.|location=London}}
* {{cite book|last=Bridgman|first=Leonard|title=Jane's All the World's Aircraft 1951–52|year=1951|publisher=Sampson Low, Marston & Company, Ltd.|location=London}}
* {{cite magazine |last=Carbonel |first=Jean-Christophe |title=Database: Hurel-Dubois Aircraft |magazine=[[Aeroplane Monthly|Aeroplane]] |date=October 2022 |volume=50 |issue=10 |pages=83–99 |issn=0143-7240}}
* {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |pages=523–24 }}
* {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |pages=523–24 }}
* {{cite book |title=World Aircraft Information Files |publisher=Bright Star Publishing|location=London |pages=File 896 Sheet 30 }}
* {{cite book |title=World Aircraft Information Files |publisher=Bright Star Publishing|location=London |pages=File 896 Sheet 30 }}


==External links==
==External links==
{{commonscat|Hurel-Dubois HD.10}}
{{commons category|Hurel-Dubois HD.10}}
*[http://www.airliners.net/photo/Hurel-Dubois-HD-10/0941166/L/ F-BFAN at the Musee d'l'Air]
*[http://www.pyperpote.tonsite.biz/listinmae/index.php?option=com_content&view=article&id=120:hurel-dubois-hd-10-nd1-f-wfan&catid=53:qentre-hallsq-c-et-d&Itemid=54 the HD.10 at the Musee d'l'air]
*[http://www.aviafrance.com/hurel-dubois-hd-10-aviation-france-8262.htm Aviafrance - HD.10]
*[http://www.airteamimages.com/hurel-dubois-hd-10_F-WFAN_-private_114045.html HD.10 image]


{{Hurel-Dubois aircraft}}
{{Hurel-Dubois aircraft}}
{{aviation lists}}


[[Category:French experimental aircraft 1940–1949]]
[[Category:1940s French experimental aircraft]]
[[Category:Hurel-Dubois aircraft]]
[[Category:Hurel-Dubois aircraft]]
[[Category:High-wing aircraft]]
[[Category:High-wing aircraft]]
[[Category:Single-engined tractor aircraft]]
[[Category:Single-engined tractor aircraft]]
[[Category:Aircraft first flown in 1948]]
[[Category:Twin-tail aircraft]]

Latest revision as of 19:16, 24 February 2023

HD.10
Role Research aircraft
National origin France
Manufacturer Hurel-Dubois
First flight 25 August 1948
Retired 28 September 1954
Number built 1

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 a 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 and 27 minutes of flight time and is now preserved in the Musée de l'Air et de l'Espace in Paris.

Design and development[edit]

The French aircraft designer Maurice Hurel set up the Société des Avions Hurel-Dubois, with the industrialist Léon-Joseph Dubois, in November 1947, to develop Hurel's theories about the use of high aspect ratio wings.[1] To demonstrate the practicality of these ideas, Hurel designed a single-engined prototype, the HD.10, with construction entrusted to the Établissements Pierre Levasseur.[2]

The HD.10 was a high-winged tractor configuration monoplane with the metal wing braced by single lift struts to the fuselage. Fowler flaps were fitted to the wing. The fuselage was of fabric-covered steel tube construction with the pilot sitting in an enclosed cockpit under the trailing edge of the wing. A twin tail was fitted, and the aircraft had a manually actuated retractable tricycle landing gear. The aircraft was initially powered by a 40 hp (30 kW) Mathis engine.[3][4]

The aircraft made its first flight, with Hurel at the controls, on 25 August 1948.[2] The aircraft was underpowered with the Mathis, and it was re-engined with a 75 hp (56 kW) Praga D. Testing at the Centre d'Essais en Vol resulted in the aircraft's vertical tail surfaces being enlarged.[5] It made its final flight on 20 June 1954, having completed more than 218 flight hours. It was then delivered to the Musée de l'Air at Paris–Le Bourget Airport for preservation and display.[5]

Specifications[edit]

Data from aviafrance[6]

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) [4]
  • Aspect ratio: 32.5:1[4]
  • 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)

References[edit]

  1. ^ Carbonel 2022, p. 85
  2. ^ a b Carbonel 2022, p. 86
  3. ^ Carbonel 2022, pp. 86–87
  4. ^ a b c Bridgman 1951, p. 127c
  5. ^ a b Carbonel 2022, p. 87
  6. ^ Parmentier, Bruno. "Hurel-Dubois HD-10". Aviafrance. Retrieved 4 January 2014.
  • Bridgman, Leonard (1951). Jane's All the World's Aircraft 1951–52. London: Sampson Low, Marston & Company, Ltd.
  • Carbonel, Jean-Christophe (October 2022). "Database: Hurel-Dubois Aircraft". Aeroplane. Vol. 50, no. 10. pp. 83–99. ISSN 0143-7240.
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. pp. 523–24.
  • World Aircraft Information Files. London: Bright Star Publishing. pp. File 896 Sheet 30.

External links[edit]