Marine night lights and day shapes of boats.

Power boat or "power-driven vessel" means any vessel propelled by machinery

Sailing vessel, means any vessel under sail provided that propelling machinery, if fitted, is not being used.

Motor sailing, the triangle pointing down with sail up means she is being propelled by machinery. So a power vessel.

Power driven vessel over 50m in length.

Anchored vessel. Note the black ball in the rigging, it is displayed in the area above the anchored end.

Anchored vessel. Note the black ball , it is displayed in the area above the anchored end. Note the shape/size does not increase with vessel size.

A vessel aground, under 12m in length. no day shapes displayed

A vessel aground, Over 12m in length. Displaying day shapes of 3 black balls in a vertical line

Constrained by Draft Black cylinder in rigging. Due to her water draft she needs the deepest parts of a channel for her passage. Stay clear of her.

Divers Boat. White and blue swallow tailed flag. Flag Alfa He has divers in the water ,pass wide and slow.

Fishing A vessel engaged in Trawling he is hauling his nets and displaying his fishing sign. 2 black cones points together.

Fishing A vessel engaged in fishing, other than trawling with fishing sign up. 2 black cones points together

An air-cushion vessel or Hovercraft. Shall exhibit an all-round flashing yellow light day and night.

A Pilot boat. A vessel engaged on pilotage duty shall exhibit: a flag, white over red. Stay clear as she may have a very big boat following her .

Due to the nature of her work is restricted in her ability to manoeuvre . In best to be seen vertical line . A Black ball ,black diamond, black ball.

Tug and Tow Tow under 200 meters . No day shapes for tow under 200m ; Restricted in ability to manoeuvre (black, ball, diamond, ball).

Towing Tow over 200 meters (diamond on both vessels) Restricted in ability to manoeuvre (black, ball diamond ball).

Vessel not under command. Through exceptional circumstance is unable to manoeuvre as required by the Rules. Two black balls in a vertical line.

A vessel engaged in mine-clearance operations . 3 black balls displayed in a triangular shape, point up. Dangerous 1000m clearance at all times.

Power Boat under 50m, Motor sailing. Seen from ahead. White masthead/steaming light, and port and starboard lights showing.

Sailing vessel under sail seen from the port quarter. Port light just and stern light.

Power vessel over 50m, displaying 2 steaming lights and port light. Seen from just off the port Bow.

A Vessel aground Over 50m 2 white masthead lights (anchor), the higher being at the front and 2 red vertical lights. (not under command )

Constrained by Draft 3 red vertical lights. Due to her water draft she needs the deepest parts of a channel for her passage. Stay clear of her.

Fishing A vessel engaged in Trawling Green over white and navigation lights, and work lights on. Give them a wide berth as nets out behind.

Fishing A vessel engaged in fishing, other than trawling ; with a red over white masthead lights, port and starboard lights; seen from ahead.

Red Jet ferry shall exhibit an all-round flashing yellow light day and night when in displacement mode same as air-cushion vessel or Hovercraft

A Pilot boat. A vessel engaged on pilotage duty shall exhibit: when on duty, white over red all-round light. Seem from stern .

Restricted in her ability to manoeuvre . Seen in a vertical line . Red ,white, Red light & navigation lights. Divers can use lights for night diving.

Towing Tow over 200 meters Three white vertical lights, navigation lights, port side seen. Note towed object has a single red

Tug and Tow Tow under 200 meters . Two white vertical lights , seem from starboard .

Vessel not under command” through exceptional circumstance is unable to manoeuvre as required by the Rules. Two red vert lights no steaming light

A vessel engaged in mine-clearance operations . 3 green lights displayed in a triangular shape, point up. Dangerous 1000m clearance at all times