“De Havilland DH.51”的意思、由来-开放百科全书

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De Havilland DH.51

释义

Design and development
Operational service
Surviving aircraft
Specifications (DH.51)
See also
References
External links

name = DH.51

image = DH51.JPG

caption = Airworthy DH.51, G-EBIR, at the Shuttleworth Collection

}}{{Infobox Aircraft Type

type = Touring biplane

manufacturer = de Havilland

designer =

first flight = 1924

introduced =

retired =

produced =

number built = 3

status =

unit cost =

primary user =

more users =

developed from =

variants with their own articles =
}}

The de Havilland DH.51 is a 1920s British three-seat touring biplane built by de Havilland at Stag Lane Aerodrome, Edgware.

Design and development

De Havilland designed the DH.51 as an economical touring biplane, based on the 90 hp (67 kW) RAF 1A engine which was available from war-surplus stocks. The aircraft first flew in July 1924; it performed well but because it did not have a dual-ignition system it was refused a certificate of airworthiness. As it would have taken at least ten hours of flight testing to certify it with a single-ignition system, de Havilland decided to re-engine the aircraft instead. The aircraft was fitted with an ADC Airdisco Air-cooled V8 piston engine, which considerably improved performance but was no longer cheap to operate. As a result, only three aircraft were built. The first aircraft was fitted with single-bay wings and was designated the DH.51A. It was exported to Australia and later converted to a floatplane as the DH.51B.

Operational service

The first aircraft was exported to Australia in 1927, as a floatplane it capsized in Sydney Harbour in January 1931. The second aircraft was used in Britain until it was scrapped in 1933. The third aircraft was exported to Kenya in 1929. It returned to Britain in 1965 and is still in use today.

Surviving aircraft

The third aircraft built (registered G-EBIR and named Miss Kenya; built in 1925) is still airworthy and on public display at the Shuttleworth Collection, Old Warden, England.

Specifications (DH.51)

{{aircraft specifications
|plane or copter?=plane
|jet or prop?=prop
|ref=De Havilland Aircraft since 1909^[1]
|crew=
|length main= 26 ft 6 in
|length alt= 8.08 m
|span main= 37 ft 0 in
|span alt= 11.28 m
|height main= 9 ft 9 in
|height alt=2.97 m
|area main= 325 ft²
|area alt= 30.19 m²
|empty weight main= 1,342 lb
|empty weight alt= 609 kg
|loaded weight main=
|loaded weight alt=
|max takeoff weight main= 2,240 lb
|max takeoff weight alt= 1016 kg
|engine (prop)=ADC Airdisco
|type of prop= air-cooled V8 engine
|number of props=1
|power main= 120 hp
|power alt= 89 kw
|max speed main= 108 mph
|max speed alt=94 knots, 174 km/h
|stall speed main=43 mph
|stall speed alt=37 knots, 69 km/h
|range main=
|range alt=
|ceiling main= 15,000 ft
|ceiling alt= 4,570 m
|climb rate main=
|climb rate alt=
|loading main=
|loading alt=
|power/mass main=
|power/mass alt=
|armament=
}}

References

1. ^Jackson 1987, p. 199.

{{cite book |last= |first= |authorlink= |author2= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985)|year= |publisher= Orbis Publishing|location= |issn=}}
{{cite book |last= Jackson|first= A.J.|authorlink= |author2= |title= British Civil Aircraft since 1919 Volume 2|year= 1973|publisher= Putnam|location= London|isbn=0-370-10010-7 }}
{{cite book|last=Jackson|first=A.J.|title=De Havilland Aircraft since 1909|year=1987|publisher=Putnam|location=London|isbn=0-85177-802-X|edition=Third}}

External links

Photo of a De Havilland DH-51 Moth

5 : Single-engined tractor aircraft|Biplanes|British civil utility aircraft 1920–1929|De Havilland aircraft|Aircraft first flown in 1924

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