What was the fastest plane of World War 1?
The fastest World War 1 plane was the single-seat biplane, called “ Sopwith Dragon ”, which was used by the United Kingdom Royal Air Force. It could achieve a top speed of 150 mph (240 km/h). By the way, an interesting list of the WW1 airplanes, ranked by speed may be found here: World War 1 Aircraft Ranked-by-Speed.
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