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

↑ King, H.F. (1981). Sopwith Aircraft 1912–1920 (1st ed.). London: Putnam. pp. 233-234. ISBN 0-370-30050-5. https://archive.org/details/sopwithaircraft00king.

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

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[King-1] King, H.F. (1981). Sopwith Aircraft 1912–1920 (1st ed.). London: Putnam. pp. 233-234. ISBN 0-370-30050-5. https://archive.org/details/sopwithaircraft00king.