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Naval History and Heritage Command

NH 115154 Gyro compass testing

Gyro compass testing
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Title: Gyro compass testing
Caption: Compasses lined up for another part of the test - that of swinging as a pendulum. After a continuous swing for two hours they are not allowed to vary over 1° each side of meridian. The Sperry Gyroscope Co., Brooklyn, New York.
Description: Copied by L.C. Handy, Washington, D.C.
Catalog #: NH 115154
Copyright Owner: Naval History and Heritage Command
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Original Medium: BW Photo
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