The red and green lights on a boat are side lights and assist in determining the direction the boat is facing. Red lights are on the port, or left side, while green lights are on the starboard, or right side. If you see only one side light, you are looking at that side of the boat. If you see both lights at the same time, that means that the boat is either headed towards you or away from you. If the red light is to the right, the boat is coming towards you (Red-Right-Returning). If the green light is to the right, the boat is going away from you.
See the associated link for US Coast Guard Navigational Rules of the Road
At night, boats are supposed to display navigational lights; these are red, green, and white. The lights are screened/shielded so that each light is only visible from a certain range of directions.If you are on a boat and can see the red, green, and white navigational lights from another boat all at the same time, you should watch out, because that means that it is moving directly toward you and there is the possibility of a collision.
A sailing vessel is approaching head-on. You must give way. The lights that are seen from the front of a small boat are red and green. They signify the port and starboard sides of the ship. Red is for the port (left) side and green is the starboard (right) side.
Properly, it is a white light, and elevated higher than the red/green lights on the front of the boat.
That a power driven ship is headed right for you. The green and red lights are the navigational side lanterns and the white light is the top light.
seeing the Red & Green lights without knowing what they are telling you means you should not be the operator of a boat of any kind until you learn that they are Navigation lights and even if you are not operating a power boat, you still need to understand what they mean. I suggest you do a boat lic. course before you cause an accident.
dont know...it means red
Navigation lights, green starboard and red port. Masthead and stern lights should be white
Another boat is approaching you. The red light is their port side and the green light is their starboard side. The port side is left.
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.
The rescue squad has red and green lights on their trucks.
Spotting a red and a green light on a boat at night is an indication that the boat has its bow pointed in your direction. If the boat is under way, it's coming at you.The red light is on the port or left side, the green on the starboard or right. These lights cannot be seen from dead astern, and only one color can be seen from beside (abeam) of the vessel.
If you are on the boat facing forward, The red light should be on the left (port) side, shining out forward and to the left. It should NOT be visible from directly behind or from the right side of the boat. Both red and green lights should ONLY be visible from directly in front of the boat.
This boat must have a white mast head light & a white stern light. Also, it must have a green running light on the right (starboard) side of the boat & a red running light on the left (port) side of the boat. The red & green lights may be mounted on the sides of the boat (international regs.) or nose of the boat if the boat is basically used on rivers or lakes in the U.S. (called: river navigation lights).
trafic lights where the amber light isn't working
General Warning: Exercise Extreme Caution
Red buoys have even numbers and red lights; green buoys have odd numbers and green lights.
a sail boat is heading straight at you
When you face the front of the boat, the left side is the 'port' side and with a red light, the right side is the 'starboard' side with a green light. A boat approaching you from ahead would see your green light on the left and red on the right, the same as you would see his lights. Possible collision ahead!
because trees are green and lights are red
Just like on a boat, red to port & green to starboard. You also need a white light at the rear.
Use green lights for WHAT?
The red (port) and green (starboard) are running lights and can tell you which direction the boat is heading in low visibility conditions. Remember the phrase, "red right returning," which means if the red light is on the right, the boat is returning, or headed towards you. The white light can be a masthead light or a sternlight, and its requirements vary depending on boat length and whether you're operating under international or inland rules.
The red light is on the port side of the boat, while the green light is an the starboard side. So, if the boat in front is showing a red light on the left and a green light on the right, it is going away from you.
The lights are still in this order: RED YELLOW GREEN
ANY boat on the water at night must display three lights: A green light starboard (on the bow) a red light port (on the bow) and a white light on the stern, mounted higher than the bow lights.
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