Annex I, section 9(b) – Horizontal sectors
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1260 Rev.1 – Unified Interpretations of COLREG 1972, as Amended – (23 May 2014) - Annex – Unified Interpretations of COLREG 1972, as Amended - Annex I, section 9(b) – Horizontal sectors

Annex I, section 9(b) – Horizontal sectors

  1 In order to comply with the one (1) mile requirement in 9(b)(ii), the screening of each all-round light shall be as follows:

  • where

  • Θ1: Screened angle of one all-round light

  • Θ2: Screened angle of the other all-round light

  2 Screenings details and the arrangement of obstacles are to be considered when carrying out the drawing approval process.


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