British_Aircraft_Double_Eagle Knowpia

B.A.IV Double Eagle
	Double Eagle in 1936
Role	Twin-engined utility monoplane
National origin	United Kingdom
Manufacturer	British Aircraft Manufacturing Company
First flight	1936
Number built	3

The British Aircraft B.A.IV Double Eagle was a British twin-engined six-seater monoplane designed and built by the British Aircraft Manufacturing Company of London Air Park, Hanworth, England.

Design and development edit

The Double Eagle was a twin-engined high-wing monoplane with a retractable landing gear, the main gear retracting backwards into the engine nacelles.^[1] The first aircraft (Y-1) was powered by two 130 hp (97 kW) de Havilland Gipsy Major engines, and it first flew from Hanworth on 3 July 1936, later registered G-ADVV. The second aircraft (G-AEIN) was fitted with two de Havilland Gipsy VIs.^[1] Three aircraft were built, although one citation is claimed to say that only two Double Eagles were produced, and that both were impressed by the RAF.^[2]^{[dubious – discuss]}

Operational history edit

In 1940, the first aircraft (G-ADVV) was impressed into the Royal Air Force as ES949,^[1] and was finally used as an instructional airframe by Armstrong-Whitworth, and later Parnall.

On 29 September 1936, the second aircraft (G-AEIN), piloted by Tommy Rose, took off in the Schlesinger Race (from Portsmouth to Johannesburg). It was retired when it suffered damage at Almaza Airfield (Cairo), due to collapse of the undercarriage. ^[3] In 1940, it was impressed into the RAF as ES950, and ended its life in 1941 as an instructional airframe.^[1]

The third aircraft (ZS-AIY) was sold to the Aircraft Operating Company in South Africa as an aerial surveying aircraft, and was then re-registered ZS-AOC. In 1940, it was impressed into service with 60 Squadron of the South African Air Force as serial number 1415.^[1]^[4]

Operators edit

South Africa

South African Air Force, one only.

United Kingdom

Royal Air Force, two.

Specifications (with Gipsy Major) edit

Data from ^[1]

General characteristics

Crew: 1
Capacity: 5
Length: 29 ft 10 in (9.1 m)
Wingspan: 41 ft 0 in (12.5 m)
Empty weight: 2,000 lb (907 kg)
Gross weight: 3,500 lb (1,588 kg)
Powerplant: 2 × de Havilland Gipsy Major , 130 hp (97 kW) each

Performance

Maximum speed: 165 mph (265 km/h, 143 kn)
Cruise speed: 145 mph (232 km/h, 126 kn)

References edit

Notes edit

^ ^a ^b ^c ^d ^e ^f Jackson 1973, page 295
^ British Multi-Engined Support Aircraft of WW II, ed. Hooks M, Kelsey 2013
^ "One Out of Nine". Flight. 8 October 1936. p. 2707.
^ "South African Air Force (Unofficial)". 60 Squadron. Retrieved 19 September 2011.