 Johnson 's wartime record was 515 sorties flown , 34 aircraft claimed destroyed with a further seven shared destroyed ( three and one shared victories ) , three probable destroyed , 10 damaged , and one shared , destroyed on the ground . All his victories were fighters . As a Wing Leader , Johnson was able to use his initials " JE @-@ J " in place of squadron code letters . He scored the bulk of his victories flying two Mk IXs : EN398 / JEJ in which he shot down 12 aircraft and shared five plus six and one shared damaged , while commanding the Kenley Wing ; MK392 / JEJ , an L.F Mk . IX , 12 aircraft plus one shared , destroyed on the ground . His last victory of the war was scored in this aircraft . Johnson ended the war flying a Mk XIVE , MV268 / JEJ . His post @-@ war mount was MV257 / JEJ ; it was the last Spitfire to carry his initials . 
