MIL-G-25597D, MILITARY SPECIFICATION: GYROSCOPE, DISPLACEMENT, ROLL AND PITCH, TYPE MD-1 (06-AUG-1973)

MIL-G-25597D, MILITARY SPECIFICATION: GYROSCOPE, DISPLACEMENT, ROLL AND PITCH, TYPE MD-1 (06-AUG-1973)., This specification covers the requirements for one type of roll and pitch, displacement gyroscope, designated Type MD-1.