Submarine Motion Control

Spares, repairs, post design services and field service support (including survey, fault diagnosis and in-situ repair) of the following systems: Motion control system aboard Trafalgar and Vanguard class submarines: The purpose of this equipment is to modulate the flow of hydraulic fluid to the rams which subsequently operate the hydroplanes and rudders in response to operator commands. Although the hydroplanes, rams and hydraulic supply are excluded from the scope, the autopilot, operator’s stickwheel and means of signal transmission from there to the hydromechanical ram-servo units which modulate the hydraulic flow are all included. On Trafalgar Class submarines, the autopilot is a hy…

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