Sopwith Sparrow

The Sopwith Sparrow was a manned light aircraft developed from the Sopwith A.T. (Aerial Target) drone and was powered by a 35 hp (26 kW) ABC Gnat engine.^[1]

References

1. King, H.F. (1981). Sopwith Aircraft 1912–1920 (1st ed.). London: Putnam. pp. 233-234. ISBN 0-370-30050-5.

• Mills, Steve (2019). The Dawn of the Drone: from the back room boys of the Royal Flying Corps. Havertown: Casemate. ISBN 9781612007908.