Keywords: tbt throwbackthursday usaf air force airforce f-51 f51 mustang outdoor F-51 Mustangs rest at the 169th Fighter Squadron in Peoria, Ill., circa 1948. Led by Lt Col Ralph Pickering, the 169 FS held its first drill in December 1946, and it received federal recognition on June 21, 1947. #USAF #Mustang #tbt F-51 Mustangs rest at the 169th Fighter Squadron in Peoria, Ill., circa 1948. Led by Lt Col Ralph Pickering, the 169 FS held its first drill in December 1946, and it received federal recognition on June 21, 1947. #USAF #Mustang #tbt |