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The Airco DH.9A is a British single-engined light bomber that was designed and first used shortly before the end of the First World War.It was a development of the unsuccessful Airco DH.9 bomber, featuring a strengthened structure and, crucially, replacing the under-powered and unreliable inline 6-cylinder Siddeley Puma engine of the DH.9 with the American V-12 Liberty engine.
Data from The British Bomber since 1914, Aircraft Profile No. 62: The de Havilland D.H.9 General characteristics Crew: two Length: 30 ft 5 in (9.27 m) Wingspan: 42 ft 4 + 5 ⁄ 8 in (12.919 m) Height: 11 ft 3 + 1 ⁄ 2 in (3.442 m) Wing area: 434 sq ft (40.3 m 2) Airfoil: RAF-16 Empty weight: 2,360 lb (1,070 kg) Gross weight: 3,790 lb (1,719 kg) Powerplant: 1 × Armstrong Siddeley Puma 6 ...
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A slat is an aerodynamic surface on the leading edge of the wing of a fixed-wing aircraft.When retracted, the slat lies flush with the rest of the wing. A slat is deployed by sliding forward, opening a slot between the wing and the slat.
In 1919 the Royal Navy had an urgent need for a three-seat spotter/reconnaissance aircraft. To save money, the Airco DH.9A was adapted from part completed airframes, available in large numbers following the end of the First World War and the cancellation of orders. [1]
The squadron was first formed as No. 12 Squadron of the Royal Naval Air Service, a training unit of No. 1 Wing, founded at Hondschoote on 8 June 1917. However, unlike other RNAS units it was not absorbed into the RAF as No. 212 Squadron, and was disbanded on 1 April 1918.
The Goral was an all-metal framed, fabric-covered biplane using DH9A wings of two-bay construction and of slight stagger, with parallel interplane struts. There were ailerons on all wings. The fuselage was oval in cross section and quite slim.
The DH.4 was designed by Geoffrey de Havilland as a light two-seat combat aircraft, intended to perform both day bomber and aerial reconnaissance missions. [3] The intention was for it to be powered by the newly developed 160 hp (120 kW) Beardmore Halford Pullinger (BHP) engine.