World war 2, Western Australia, Rottnest Island, Coast Artillery Instrumentation, Magslip Data Transmission System
A Magslip system enables the transmission of information from one alignment indicator to another – for example from a prediction device to a gun sight. The standard magslip chain consists of three elements : A transmitter, the rotor of which is offset mechanically by the controlling agent whose movement is to be transmitted. The Hunter hunter whose rotor is displaced electrically by the transmitter and operates the sensitive valve of an oil motor. A re-setter, which is driven mechanically by the movement of the oil motor and which re-centres the Hunter electrically, by altering the flux from its stator. This closes the valve and stops the motor as soon as the re-setter has been rotated through exactly the same amount as the transmitter was originally offset by the controlling agent. This is how the indicator dials were moved on the elevation and bearing receiver stations on the 9.2 inch guns
Details
Details
This entry is based on research, documentation and technical drawings prepared by John Mercer during many years as a leading member of the Rottnest Island Military Restoration Committee and the Defence Heritage Interpretation Plan Group.
Australian Army Museum of Western Australia
Australian Army Museum of Western Australia
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