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MIL-C-81412 1966 Edition, March 17, 1966
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COMPASS SET, GYROSCOPE REFERENCE NAVIGATIONAL
Includes all amendments and changes through Interim Notice 2, April 30, 1997
Additional Comments: INACTIVE FOR NEW DESIGN AFTER 4/30/97
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The equipment covered by this Specification is a 5.5 degree per hour, magnetic slaved, directional gyro stabilized compass set for use in military aircraft.

There are two configurations of the Compass Set. The Type I configuration includes the ML-1 transmitter with an integral mechanical-magnetic compensator. The Type II configuration includes the ML-1 transmitter without the above compensator and with the Compensator, Electronic, Magnetic Compass CN-1142/ASN-75. (See 6.8)

No data is required by this Specification (other than reports accompanying samples submitted for testing) or by applicable documents, unless specified in the contract or order. (See 6.7)