Sunbeam (car Company) - First World War

First World War

Starting in 1912 they had also branched out into aircraft engines, introducing a series of engines that were not particularly successful commercially. Coatalen seemed to be convinced that the proper solution to any engine requirement was a design for those exact specifications, instead of producing a single engine and letting the aircraft designers build their aircraft around it. Their most numerous designs were the troublesome V8 Sunbeam Arab, which was ordered in quantity in 1917 but suffered from continual vibration and reliability problems and only saw limited service, and the more successful V12 Sunbeam Cossack. Meanwhile Coatalen continued to experiment with ever-more odd designs such as the star-layout Sunbeam Malay, which never got beyond a prototype, the air-cooled Sunbeam Spartan and the diesel-powered Sunbeam Pathan. The company was fairly successful with the introduction of newer manufacturing techniques, however, and was one of the first to build aluminium single-block engines, a design that would not become common until the 1930s.

During the First World War, the company built motorcycles, trucks, and ambulances. The company also participated in the Society of British Aircraft Constructors pool, who shared aircraft designs with any companies that could build them. Acting in this role, they produced 15 Short Bombers powered by their own Sunbeam Gurkha engines, 20 Short Type 827s, 50 Short 310s, and others including Avro 504 trainers; they even designed their own Sunbeam Bomber, which lost to a somewhat simpler Sopwith design. Sunbeam had produced 647 aircraft of various types by the time the lines shut down in early 1919.