Lights and Shapes
Be aware of the following items in Collision Regulations.
A "masthead light" means a white light placed over the fore and aft centerline of a pleasure craft showing an unbroken light over an arc of the horizon of 225 degrees and so fixed as to show the light from right ahead to 22.5 degrees abaft the beam on either side of a pleasure craft.
"Sidelights" means a green light on the starboard side and a red light of the port side each showing an unbroken light over an arc of the horizon of 112.5 degrees and so fixed as to show the light from right ahead to 22.5 degrees abaft the beam on its respective side. Memory aid: port wine is red.
"Sternlight" means a white light placed as nearly practical at the stern showing an unbroken light over an arc of the horizon of 135 degrees and so fixed as to show the light 67.5 degrees from the right aft on each side of a pleasure craft.
"All-round light", white, means a white light showing an unbroken light over an arc of the horizon of 360 degrees.
"All-round light", green, means a green light showing an unbroken light over an arc of the horizon of 360 degrees.
"All-round light", red, means a red light showing an unbroken light over an arc of the horizon of 360 degrees.
"Towing light" means a yellow light having the same characteristics as the "Sternlight" defined above and identifies a vessel engaged a towing operation.
"Flashing light" means a light flashing at regular intervals at a frequency of 120 flashes or more per minute.
"Special flashing light" means a yellow light flashing at regular intervals at a frequency of 50 to 70 flashes per minute, placed as far forward and as nearly as practicable on the fore and aft centreline of a vessel and showing an unbroken light over an arc of the horizon of not less than 180 degrees nor more than 225 degrees and so fixed as to show the light from right ahead to abeam and not more than 22.5 degrees abaft the beam on either side of the vessel.
"Blue flashing light" means a blue all-round light flashing at regular intervals at a frequency of 50 to 70 flashes per minute.
