3.3 Thruster system
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.645 – Guidelines for Vessels with Dynamic Positioning Systems – (Adopted on 6 June 1994) - Annex - Guidelines for Vessels with Dynamic Positioning Systems - 3 Functional Requirements - 3.3 Thruster system

3.3 Thruster system

  3.3.1 The thruster system should provide adequate thrust in longitudinal and lateral directions, and provide yawing moment for heading control.

  3.3.2 For equipment classes 2 and 3, the thruster system should be connected to the power system in such a way that 3.3.1 can be complied with even after failure of one of the constituent power systems and the trusters connected to that system.

  3.3.3 The values of thruster force used in the consequence analysis (see 3.4.2.4) should be corrected for interference between thrusters and other effects which would reduce the effective force.

  3.3.4 Failure of thruster system including pitch, azimuth or speed control, should not make the thruster rotate or go to uncontrolled full pitch and speed.

Parent topic: 3 Functional Requirements
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