Engineering · Auxiliary — Steering Gear
An electro-hydraulic steering gear moves the rudder by:
- AAn electric motor geared directly to the rudder stock
- BHydraulic rams or a rotary vane driven by a variable-delivery pump✓ Correct
- CCompressed air cylinders
- DSteam-driven reciprocating engines
Explanation
Most modern steering gears are electro-hydraulic: an electric motor drives a pump (often variable-delivery) that supplies oil to rams or a rotary-vane actuator on the rudder stock to turn the rudder.
Authority: Auxiliary Machinery (USCG engineering topic)
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