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Masthead light

  • Description of scenario: Time of the day: From sunset to sunrise and from sunrise to sunset in restricted visibility
  • Rule(s) to be applied: Rule 21 (Definitions)
  • Applying the Rule(s) and comments: In accordance with Rule 21 (a) (Definitions), "masthead light " means a white light placed over the fore and aft centre line of the vessel showing an unbroken light over an arc of the horizon of 225° and so fixed as to show the light from right ahead to 22.5° abaft the beam on either side of the vessel.
    Comments:
    Masthead lights are sometimes called “steaming lights” because they are only placed on power-driven vessels.
  • Lights positions:

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This project has been funded with support from the European Commission.This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.