Testing
Each Sperry Gyro-Compass is on test for several days. During this time it is put through every devisable test to simulate the conditions under which it will have to operate. Figures 38 and 39 show a compass mounted on a stand which is operated by means of motor driven gears, cams, etc., so as to reproduce the roll, pitch and yaw of a ship at sea. Absolute accuracy of the Master Compass and all repeaters while operating under this condition is required.
The purchaser is thereby assured that the compass to be installed upon his ship will have had all manufacturing inaccuracies or so-called “kinks” worked out. A record of the test accompanies each compass.