Site Navigation:

Site Search:

Looking for more? Search for Articles on the Nauticapedia Site.

Cardinal Aids to Navigation / Cardinal Buoys

2016

Cardinal Buoys

North Cardinal Buoy VK at Fulford Reef (Photo from the Captain Alec Provan collection. )

The Canadian Aids To Navigation System states that "Cardinal aids may be in the form of either buoys or fixed aids. However, their predominant use is in the form of buoys in the Canadian system."

Cardinal Buoys are yellow and black. They usually carry white lights. The black topmark cones point to the black portion(s) of the buoy. They have lettered designations – no numbers. They carry white retroreflective material. They carry two conical topmarks and the direction of points have significance.

A north cardinal aid indicates that the safest water exists to the north. A north cardinal buoy is coloured black and yellow in approximately equal areas above the waterline, the top half of the buoy being black and the lower half being yellow. It displays identification letter(s) and if it carries a light, the light is white and is a quick flashing (Q)1s or very quick flashing (VQ)5s light, and if it carries a topmark, the topmark is two black cones, one above the other, pointing upward.

An east cardinal aid indicates that the safest water exists to the east. An east cardinal buoy is coloured black with one broad yellow horizontal band. It displays identification letter(s) and if it carries a light, the light is white and is a group quick flashing three Q(3)10s or a group very quick flashing three VQ(3)5s light, and if it carries a topmark, the topmark is two black cones, one above the other, base to base.

Cardinal Buoys

East Cardinal Buoy PB (Photo from the John MacFarlane collection. )

Cardinal Buoys

East Cardinal Buoy PJ (Photo from the collection. )

A south cardinal aid indicates that the safest water exists to the south. It is coloured with yellow on the top half and black on the lower half. It displays unique identification letters. It can be spar shaped although other shapes may be employed. If it carries a top mark it will display two black cones - one above the other with both points downward. It will carry white reflective material. If it is lit it displays a white light and exhibits a group of six plus long flashes or a group of very quick flashing six plus long flashes.

A west cardinal aid indicates that the safest water exists to the west. It is coloured with yellow and a black horizontal band midway between the top and the water level. It displays unique identification letters. It can be spar shaped although other shapes may be employed. If it carries a top mark it will display two black cones, one above the other, point to point. It will carry white reflective material. If it is lit it displays a white light in nine (15s) quick flashing groups or a group of nine very quick flashing (10s).


Nauticapedia

Site News: December 21, 2024

The vessel database has been updated and is now holding 94,824 vessel histories (with 16,274 images and 13,929 records of ship wrecks and marine disasters).

Vessel records are currently being reviewed and updated with more than 45,000 processed so far this year (2024).

The mariner and naval biography database has also been updated and now contains 58,599 entries (with 3996 images).

Thanks to Ray Warren who is beginning a long process of filling gaps in the photo record of vessel histories in the database. Ray has been documenting the ships of Vancouver Harbour for more than 60 years.

Thanks to contributor Mike Rydqvist McCammon for the hundreds of photos he has contributed to illustrate British Columbia’s floating heritage.

My very special thanks to our volunteer IT adviser, John Eyre, who (since 2021) has modernized, simplified and improved the update process for the databases into semi–automated processes. His participation has been vital to keeping the Nauticapedia available to our netizens.

© 2002-2023