A single engined triplane, the Snark did not fly until after the end of the war, only three being built.
The specification asked for a fighter capable of operations at high altitude and powered by the ABC Dragonfly engine, which was an air-cooled radial engine which had been ordered in large numbers based on promises of high performance and ease of production.
Sopwith produced two designs to meet this requirement, a biplane, the Snapper, and a triplane, the Snark.
[3][a] The first prototype was complete by October 1918, but flight-ready engines were not available until March 1919, and the Snark did not make its first flight until July 1919.
[4] While it demonstrated reasonable performance and good maneuverability,[3] (although not as good as the earlier Sopwith Triplane[5]), by this time, it had been realised that the Dragonfly engine had serious problems, being prone to overheating and severe vibration, and plans for production of the Snark had been abandoned.