The port side of a vessel carries a red light, whilst the starboard side carries a green one. A white light would be either in the centre to act as a headlight or extra illumination for the benefit of other vessels, or on the masthead to indicate the height of the boat.
dark out
dark out
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you are approaching head on.
Its a motor boat, coming straight against you.
it tells you the boat is approaching you head on
If you see both the red and green lights but not the white one, the boat is coming right for you and something's wrong because the white light has to be visible from any angle for a distance of two miles. <<>> If there's no white light it's a sailing boat. If you see red and green the boat is under sail and you are lined up with its bows. A small motor boat also needs a white light high up and visible all round.
If you see both the red and green lights but not the white one, the boat is coming right for you and something's wrong because the white light has to be visible from any angle for a distance of two miles. <<>> If there's no white light it's a sailing boat. If you see red and green the boat is under sail and you are lined up with its bows. A small motor boat also needs a white light high up and visible all round.
When you see green and white lights on another boat, you should slow down. This means that you are approaching another boat and you should reduce your speed.
If you see both the red and green lights but not the white one, the boat is coming right for you and something's wrong because the white light has to be visible from any angle for a distance of two miles. <<>> If there's no white light it's a sailing boat. If you see red and green the boat is under sail and you are lined up with its bows. A small motor boat also needs a white light high up and visible all round.