 On 21 July , Johnson shared in the destruction of another Bf 109 with Pilot Officer <unk> . Johnson 's wingman disappeared during the battle . Sergeant <unk> was mortally wounded but made a wheels @-@ up landing near St Omer . Impressed with his skilful flying while badly wounded , the Germans buried him with full honours . On 23 July , Johnson damaged another Bf 109 . During this battle Adolf Galland , Geschwaderkommodore ( Wing Commander ) of JG 26 was wounded ; his life was saved by a recently installed armour plate behind his head . 
