3 Pull-out manoeuvre
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.1053 – Explanatory Notes to the Standards for Ship Manoeuvrability – (Adopted on 16 December 2002) - Annex - Explanatory Notes to the Standards for Ship Manoeuvrability - Appendix 4 - Additional Manoeuvres - 3 Pull-out manoeuvre

3 Pull-out manoeuvre

 After the completion of the turning circle test the rudder is returned to the midship position and kept there until a steady turning rate is obtained. This test gives a simple indication of a ship’s dynamic stability on a straight course. If the ship is stable, the rate of turn will decay to zero for turns to both port and starboard. If the ship is unstable, then the rate of turn will reduce to some residual rate of turn (seefigure A4-1). The residual rates of turn to port and starboard indicate the magnitude of instability at the neutral rudder angle. Normally, pull-out manoeuvres are performed in connection with the turning circle, zig-zag, or initial turning tests, but they may be carried out separately.

Parent topic: Appendix 4 - Additional Manoeuvres
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