Handley Page R/200
Designed to meet Admiralty requirement N.2a of 1917, the R/200 was a two seat reconnaissance fighter to operate as a seaplane or from the decks of the carriers HMS Furious and Argus.
Two prototypes with 200 hp Hispano-Suizas were built. The wing trailing edges were entirely taken up by ailerons and camber changing flaps, all of the same size. To speed production and minimise spares, the left ailerons were interchangable with the right flaps and vice versa, and the fin and each half of the tailplane, and the rudder and each elevator, were identical.
The R/200’s performance was undistinguished, and another four prototypes and twenty production aircraft were cancelled.