1427 Unified Interpretation of COLREG 1972

Annex I, section 10(a)(i) Vertical sectors

Annex I, section 10(a)(i) – Vertical sectors
The vertical sectors of electric lights, as fitted, with the exception of lights on sailing vessels, should ensure that at least the required intensity is maintained at all angles from 5° above to 5° below the horizontal when measured at even keel.

Annex I, section 9(a)(i) Horizontal sectors

Annex I, section 9(a)(i) – Horizontal sectors
COLREG Annex I, section 9(a)(i) would require the full intensity of the side lights to be maintained in the forward direction of 1° outside the prescribed sector with the practical cut-off between 1° and 3°. This is needed to enable other vessels to determine a "head-on-situation" as per COLREG rule 14.

• Informatietype: Internationaal
• Documentsoort: Circulaire niet in wetten.nl
• Toegangsrechten: Extern
• Identificatie: PUC_2189_14
• Versie: 2
• Datum beschikbaarheid: 01-10-2012
• Geldigheid van: 01-01-2013
• Wijzigingsdatum: 24-11-2016
• Titel: 1427 Unified Interpretation of COLREG 1972
• Organisatie: International Maritime Organization (IMO)
• Taal: Nederlands
• Thema: 1400 until 1499