Today in History – May 5, 1943 – First flight of a production North American Aviation P-51B-1-NA Mustang
5 May 1943: First flight of a production North American Aviation P-51B-1-NA Mustang, 43-12093 (NAA serial number 102-24541). Following the RAF’s initial disappointing experience with the Mustang I (P-51A), Ronald Harker, a test pilot for Rolls-Royce, suggested fitting a Merlin 61 engine, a two-speed, two-stage, inter-cooled supercharger, designed by Stanley Hooker of Rolls-Royce. This gave an […]