Power-Driven Vessel Underway

Power-driven vessel underway

A power-driven vessel underway shall exhibit:

  • a masthead light forward;
  • a second masthead light abaft of and higher than the forward one; except that a vessel of less than 50 metres in length shall not be obliged to exhibit such light but may do so;
  • sidelights;
  • a sternlight.
Power driven vessel underway, longer than 50 m
Abeam, port sideAheadAstern
Power driven vessel underway, shorter than 50 m
Abeam, port sideAheadAstern
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