4.4 Rate of Turn
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Statutory Documents - IMO Publications and Documents - Circulars - Safety of Navigation - Circular SN/Circ.227- Guidelines for the Installation of a Shipborne Automatic Identification System (AIS) – (6 January 2003)Amended by SN/Circ.245 - Annex - Guidelines for the Installation of a Shipborne Automatic Identification System (AIS) - 4 Dynamic data input - 4.4 Rate of Turn

4.4 Rate of Turn

 All ships may not carry a Rate-Of-Turn (ROT) Indicator according to resolution A.526(13). However, if a rate-of-turn indicator is available and it includes an IEC 61162 interface, it should be connected to the AIS.

If ROT information is not available from a ROT indicator, the direction of turn may (optionally) be derived from heading information through:

  • The compass itself,
  • An external converter unit (see paragraph 4.3),
  • The AIS itself (see annex 1).
Parent topic: 4 Dynamic data input
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