Sopwith S.P.Gn

The Sopwith Pusher, gun, was a gun-carrying two-seat pusher biplane with twin floats. Six of these floatplanes were ordered from the recently-founded Sopwith Aviation Company by the Greek government in March 1914, but immediately commandeered by the Admiralty when war was declared in August that year, subsequently serving with the RNAS.

The Gun Bus was a land based version.