Storage Battery
The complete failure of the electrical plant aboard a modern ship is an event of rare occurrence. If, however, such a contingency should occur, provision has been made for it in the Gyro-Compass equipment by supplying a storage battery of sufficient capacity to operate the entire equipment for a period of two hours. The battery is so connected electrically as to keep itself in a charged condition while the compass is operating under normal conditions.
FIGS. 19, 20, 21, 22, 23. Sperry Gyro-Compass Repeaters.
FIGS. 24, 25, 26. Sperry Gyro-Compass Bearing Repeater With Azimuth Circle.
FIGS. 27, 28, 29, 30. Bearing Repeater Mounted in Pelorus Stand.
Malay pirates use the swift-sailing Proa.
Figure 31.