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The Coffman engine starter (also known as a "shotgun starter") was a starting system used on many piston engines in aircraft and armored vehicles of the 1930s and 1940s. It used a cordite cartridge to move a piston, which cranked the engine.
The Coffman starter was an explosive cartridge operated device, the burning gases either operating directly in the cylinders to rotate the engine or operating through a geared drive. First introduced on the Junkers Jumo 205 diesel engine in 1936 the Coffman starter was not widely used by civil operators due to the expense of the cartridges. [11]
A teardrop shaped blister for a Coffman cartridge starter can be seen just behind the propeller. This aircraft carries a 30-gallon "slipper" drop tank under the fuselage. In the early months of 1942, with the clear superiority of the Focke-Wulf Fw 190 over the Spitfire Mk Vb, there was much pressure to get Spitfires into production using the ...
A NACA Hucks starter set up to start a Vought VE-7 A Hucks starter connected to start the engine of a Hawker Nimrod A Ford Model T-based Hucks starter owned by the Shuttleworth Collection. A Hucks starter is an auxiliary power unit, almost always a lorry or truck, that provides initial power to start up piston aircraft engines.
Mk VIs were built with the Coffman cartridge starter, with a small teardrop fairing just ahead of the compressor intake. [ 100 ] The engine was a Rolls-Royce Merlin 47 driving a four-bladed Rotol propeller of 10 ft 9 in (3.27 m) diameter; the new propeller provided increased thrust at high altitudes, where the atmosphere is much thinner.
The first Canberra B.2 prototype, VX165. The Air Ministry specification B.3/45 had requested the production of four prototypes. On 9 January 1946, English Electric received a contract to produce four prototypes, which received the Society of British Aerospace Companies designation A.1; work commenced on the construction of these prototype aircraft in that same year, which were all built on ...
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