MIL-T-8679, MILITARY SPECIFICATION: TEST REQUIREMENTS, GROUND, HELICOPTER (05 MAR 1954) [NO S/S DOCUMENT]

MIL-T-8679, MILITARY SPECIFICATION: TEST REQUIREMENTS, GROUND, HELICOPTER (05 MAR 1954) [NO S/S DOCUMENT]., This specification covers the ground testing of items peculiar to helicopters and of all types of helicopters in general