Ships Engine Telegraph - Automation Equiptment.

الوصف

An Engine OrderTelegraph or *****, often also chadburn[1], is a communications device used on a ship (or submarine) for the pilot on the bridge to order engineers in the engine room to power the vessel at a certain desired speed. In early vessels, from the ***0s until about ***0, the device usually consisted of a round dial about nine inches (~*0 centimetres) in diameter with a knob at the center attached to one or more handles, and an indicator pointer on the face of the dial. Modern *****s on vessels which still use them use electronic light and sound signals.