AIR FORCE - AF - U.S. Air Force https://yse.yabesh.ir/std/handle/yse/49 2026-05-06T21:46:39Z 2026-05-06T21:46:39Z MIL-S-6252D AIR FORCE - AF - U.S. Air Force https://yse.yabesh.ir/std/handle/yse/218340 2017-09-04T18:36:26Z 1958-01-01T00:00:00Z MIL-S-6252D; SPECIFICATIONS, DETAIL, FIXED WING AIRCRAFT,PREPARATION OF AIR FORCE - AF - U.S. Air Force 1958-01-01T00:00:00Z