| 词条 | British Aircraft Eagle | ||||||||||||||||||
| 释义 |
The B.A. Eagle was a light aircraft manufactured in the United Kingdom during the 1930s. It was a three-seat low-wing monoplane built by the "British Klemm Aeroplane Company" (which later became known as the British Aircraft Manufacturing Co.) Production was limited, with 43 aircraft built. Design and developmentThe British Klemm Aeroplane Company developed the B.K.1 Eagle, a three-seat light aircraft as a follow-up to the British Klemm Swallow, its licensed copy of the Klemm L.25. While similar to the Klemm Kl 32, it was an entirely independent design by G. Handasyde, the chief designer of British Klemm, first flying in early 1934.[1] The Eagle was a low-wing wooden monoplane with a retractable undercarriage. It had an enclosed cabin for the pilot and two passengers. Six of this initial version of the Eagle were built.[1] As was the case with the Swallow, a revised version was introduced in 1935 when British Klemm was renamed the British Aircraft Manufacturing Co. This version, the B.A. Eagle II had a revised rudder and a deepened rear fuselage. A total of 37 Eagle IIs were built, including a single example fitted with a fixed undercarriage. Operational historyEagles were mainly sold to private owners, with a few also being used by flying clubs or as executive transports. Eagles were also used for air racing, with several being entered into the King's Cup Races between 1935 and 1937. Single examples were also entered into the MacRobertson Air Race of 1934 between Britain and Australia and the 1936 Schlesinger Race between England and South Africa. Neither aircraft completed the races.[1] At the outbreak of the Second World War, seven Eagles were pressed into RAF service in the UK, with two in Australia and one in Kenya,[2] but the undercarriages proved vulnerable in RAF service, with most airframes being written off due to undercarriage failure.[1] Two aircraft survived the war to be flown by civil owners in Australia. Variants
Initial production version, six built.
Revised production version with modified structure, 37 built. Operators
SurvivorsTwo Eagles currently survive.
Exhibited at the Fundaćion Infante de Orleans air museum at Madrid, Spain. Still active 2009.[3]
Exhibited in Australia and still active in 2012.[4] Specifications (B.K. Eagle){{aircraft specifications|plane or copter?=plane |jet or prop?=prop |ref=British Civil Aircraft since 1919.[1] |crew=Two |capacity= |length main= 26 ft 0 in |length alt= 7.93 m |span main= 39 ft 3 in |span alt= 11.97 m |height main= 6 ft 9 in |height alt= 2.06 m |area main= 200 ft2 |area alt= 18.6 m2 |airfoil= |empty weight main= 1,450 lb |empty weight alt= 659 kg |loaded weight main= |loaded weight alt= |useful load main= |useful load alt= |max takeoff weight main= 2,400 lb |max takeoff weight alt= 1,091 kg |more general= |engine (prop)=de Havilland Gipsy Major |type of prop= 4-cylinder air-cooled inline engine |number of props=1 |power main= 130 hp |power alt= 97 kW |power original= |max speed main= 129 knots |max speed alt= 148 mph, 238 km/h |cruise speed main= 113 knots |cruise speed alt= 130 mph, 209 km/h |never exceed speed main= |never exceed speed alt= |stall speed main= |stall speed alt= |range main= 565 nm |range alt= 650 mi, 1,047 km |ceiling main= 16,000 ft |ceiling alt= 4,900 m |climb rate main= 700 ft/min |climb rate alt= 3.6 m/s |loading main= 12.0 lb/ft2 |loading alt= 58.7 kg/m2 |thrust/weight= |power/mass main= 0.054 hp/lb |power/mass alt= 0.089 kW/kg |more performance= |armament= |avionics= }} References1. ^1 2 3 4 {{cite book |last= Jackson|first= A.J.|authorlink= |coauthors= |title= British Civil Aircraft since 1919 Volume 1|year= 1974|publisher= Putnam|location= London|isbn=0-370-10006-9 }} 2. ^{{cite web |url=http://www.jaapteeuwen.com/ww2aircraft/html%20pages/BRITISH%20AIRCRAFT%20BKI%20EAGLE.htm |title=British Aircraft of World War II – British Aircraft Eagle |accessdate=2007-07-09 |work= |deadurl=bot: unknown |archiveurl=https://web.archive.org/web/20080703165351/http://www.jaapteeuwen.com/ww2aircraft/html%20pages/BRITISH%20AIRCRAFT%20BKI%20EAGLE.htm |archivedate=3 July 2008 |df=dmy-all }} 3. ^{{cite book |title=Aviation Museums and Collections of Mainland Europe |last= Ogden |first=Bob |year=2009|publisher= Air Britain (Historians) Ltd|page=527|isbn=978-0-85130-418-2}} 4. ^Air Britain News May 2012, p.594 External links{{commons category|British Aircraft Eagle 2}}
5 : British civil utility aircraft 1930–1939|British Aircraft Manufacturing aircraft|Low-wing aircraft|Single-engined tractor aircraft|Aircraft first flown in 1934 |
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