Sopwith Triplane of 1917, surviving Triplanes were used as advanced trainers with No. 12 Naval Squadron. Sopwith Triplane The Sopwith Triplane was a British single seat fighter aircraft designed and manufactured by the Sopwith Aviation Company during the First World War. It was the first military triplane to see operational service. The Triplane joined Royal Naval Air Service squadrons in early 1917 and was immediately successful. It was nevertheless built in comparatively small numbers and was withdrawn from active service as Sopwith Camels arrived in the latter half of 1917. Surviving Triplanes continued to serve as operational trainers until the end of
Sopwith Gunbus as trainers, being used by the RNAS at Hendon, and remaining in service until the winter of 1915-16. The name "Gunbus" came from the Royal Flying Corps (RFC) pilot's slang term for an aeroplane - a "bus" - and was also used in the name of the Vickers Gunbus. Sopwith Gunbus The Sopwith Gunbus was a British fighter aircraft of the First World War. It was a single-engined pusher biplane based on a floatplane built by Sopwith before the war for Greece. Small numbers were built and used by the British Royal Naval Air Service, mainly as a trainer. In