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Aviation History
1949
1949 - 1052.PDF
JUNE 2ND, 1949 FLIGHT Advertisements of accurate navigation Precise navigation and the efficient operation of aircraft between airport and airport depends on accurate azimuth and attitude references. Through- out the development of aviation Spegv|aye anticipated the exacting require- ments for improved performan^H^rJnstruments and Gyropilots. SPERRY GYRO-MAGNETIC COIV Accuracy : within \ degree. Weight : C.L.I 14| lb CL.2 25 !b. I The latest in aircraft compasses, representing the result of many I thousands of hours of operational experience with this design I Consisting of a Directional Gyro continuously monitored by a remote Detector Unit, it is free from Northerly turning error and Gyro wander. The military versions, Mark 4.F and 4,B, have been specified by the Royal Air Force and Royal Navy, and the civil versions, Types C.L.i and C.L.2, by B.O.A.C. and B.E.A. for their new aircraft. SPERRY '^3C-
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