▁the ▁right ▁shoulder ▁while ▁changing ▁am mun ition ▁drums . ▁Nothing ▁da unted , ▁he ▁shot ▁it ▁down ▁left - hand ed , ▁sending ▁it ▁down ▁in ▁fl ames . ▁ ▁The ▁following ▁day , ▁Col er ▁and ▁Glad man ▁ ▁were ▁forced ▁to ▁land ▁behind ▁British ▁lines , ▁the ▁gun ner ▁being ▁sever ely ▁wounded . ▁Their ▁conquer or ▁seems ▁to ▁have ▁been ▁Otto ▁K ön ne cke . ▁ ▁On ▁ 3 0 ▁August , ▁Col er ▁changed ▁g unn ers ▁and ▁plan es , ▁flying ▁Br istol ▁F . 2 ▁F ighter ▁No . ▁E 2 2 1 5 ▁when ▁he ▁destroyed ▁a ▁Pf al z ▁D . X II ▁and ▁a ▁F ok ker ▁D . V II ▁almost ▁simultaneously . ▁He ▁then ▁destroyed ▁two ▁enemy ▁f ighter ▁plan es ▁each ▁on ▁ 6 ▁September , ▁ 1 5 ▁September , ▁and ▁ 1 6 ▁September . ▁On ▁the ▁latter ▁date , ▁he ▁was ▁wounded ▁in ▁action . ▁Bruno ▁Lo er zer ▁scored ▁his ▁ 4 0 th ▁victory ▁by ▁pun ct uring ▁the ▁fuel ▁tank ▁and ▁cutting ▁the ▁a iler on ▁controls ▁on ▁Col er ' s ▁Br istol ▁and ▁driving ▁it ▁into ▁a ▁crash - land ing ▁near ▁Be ug ny . ▁While ▁Col er ▁was ▁power ▁div ing ▁into ▁this ▁controlled ▁crash , ▁two ▁Germ ans ▁who ▁were ▁ch asing ▁him ▁over ran ▁their ▁pros pective ▁target ▁and ▁were ▁shot ▁down ▁by ▁Col er ▁and ▁his ▁gun ner . ▁ ▁After ▁World ▁War ▁I ▁He ▁became