The USAAF L-4 crew who shot down a German Fi 156 Storch with their Colt. 45 Pistols and scored the last American air-to-air victory over Germany of WWII The USAAF L-4 crew who shot down a German Fi 156 Storch with their Colt. 45 Pistols and scored the last American air-to-air victory over Germany of WWII