At first sight, apart of those contra-rotating props, this neat sketch looks like an Allied early interpretation of the German Fw 190A. In fact, this Bristol Centaurus-powered “clone” was one of the two Boulton Paul’s proposals (the P.103A was a RR Griffon-engined version) to fulfill the Royal Navy N.7/43 fighter specification. That requirement was conceived to supply, at last, the Fleet Air Arm with an up-to-date all-British carrier fighter after years of barely satisfactory landplane conversions (Sea Hurricanes & Seafires) and American types. In the end, after a tortuous path, it was the Sea Fury the one which answered the “Senior Service” prayers…., but only after the war ended.
Ah, that cockpit canopy.