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Navigation lights (Maritime Safety Queensland)
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At night they have special navigation lights: in addition to the "normal" navigation lights, [14] a pilot boat has a white round light at top and below that a red round light, while a fishing vessel has the red light at top and the white light below.

To remember this, some people use the mnemonic "white cap, red nose" to reflect the idea that pilots consumed a lot of alcohol while waiting for ships, thus the white captain's cap with a red nose below it. Pilot boats often also use bright colors, like flashy yellow, to make them clearly visible and distinctive in even the worst conditions. This last mainly applies to the so-called pilot tenders: the vessels that go to the ships to bring the pilot on board of arriving ships or pick them up from departing ships.

Depending on the local situation the tenders might be launched directly from a nearby harbour or they are coming from the central large pilot station : a pilot boat located at a pre-defined location at sea near a Marine Navigation Lights For Boats 80 pilotage area.

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Edmund Blunt. Charles H. Edwin Forrest. In region B port marks are green and starboard red. Where a channel divides the mark at the junction is called a "preferred channel mark" or "junction buoy". The mark has the colour and shapes corresponding to Navigation Lights For Boats Wikipedia Mp4 the preferred channel with a band of the other colour to indicate it is the other hand mark for the subsidiary channel. The red cylinder is a port hand mark for the main channel, the green band indicates a starboard mark for the minor channel.

Cardinal marks warn of a danger wrecks, shoals, bends, spits etc. There are four varieties: north, east, south and west. A north cardinal mark is placed to the north of a hazard and indicates safe water is to the north of the mark. East, south and west are placed accordingly.

Cardinal marks are yellow and black with two cones at top marks. Black with a horizontal red band and two black balls as a top mark. The mark indicates a danger shoal, rock, wreck etc. Red and white vertical stripes with a single red sphere for a top mark. It indicates that there is safe water all around it.

The usual use is to indicate the start of a channel or port approach. Indicates a newly discovered or created danger that is not yet marked on charts or in update notices thereto. The mark is used for a short time until the danger is either removed or else marked conventionally with lateral or cardinal marks.

The mark has blue and yellow vertical stripes and a yellow and blue light. The topmark is a vertical yellow cross. Yellow with an "X" topmark. Used to mark other features such as swimming areas, anchorages, pipelines.

The exact reason is marked on charts. A sector light is one which shows different colours depending upon the angle of approach. They are commonly used to indicate the safe channel white and show red or green if the vessel is out of the safe channel. There are also other markers that give information other than the edges of safe waters. Most are white with orange markings and black lettering. They are used to give direction and information, Navigation Lights For Boats Led 800 warn of hazards and destructions, mark controlled areas, and mark off-limits areas.

These ATONs do not mark traffic channels. AtoNs can be integrated with automatic identification system AIS. AIS transmitted form an actual aid buoy, lighthouse etc. This is known as a "synthetic ATON". Synthetic and virtual AIS AtoNs mark their messages as repeats to indicate that the location of the transmitter is not the location of the AtoN.

Lead marks as in "leading a ship into a safe place" and lights are fixed markers that are laterally displaced to allow a mariner to navigate a fixed channel along the preferred route. They are also known as "channel markers".

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