Cosmos Engineering

Cosmos Engineering was a company that manufactured aero-engines in a factory in Fishponds, Bristol during World War I.

Sir Roy Fedden, the company's principal designer, developed the 14-cylinder radial Mercury engine during this period.

[1] The company was one of the first to be brought under Admiralty control, and Fedden and his draughtsman Leonard Butler designed two engines during the war; the 14-cylinder Mercury and the larger, 9-cylinder Jupiter.

The Cosmos 10.5 of 1919, featured an air-cooled 3-cylinder radial layout 994-cc engine of 16 hp and pressed-steel wobbly-web wheels, and was significantly innovative for its time.

The factory on Lodge Causeway was subsequently taken over by Parnall & Sons for shop and ship fitting and aircraft component manufacturing.