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Know Your Horizon, Operating Bulletin 15-403, 1943

Sperry

Know Your Horizon, Operating Bulletin 15-403, 1943

$7.00

This is an original familiarization booklet published in 1943 by the Sperry Gyroscope company for pilots flying aircraft equipped with the Sperry Gyro Horizon Indicator (which was most aircraft during this time). 

This 5 x 8 inch 8-page booklet is in very good condition given its age. It came to us from the estate of a B-17 flight instructor.


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