When boating at night what does a single white light on a boat tell you?

All-Round White Light: On power-driven vessels less than 39.4 feet in length, this light may be used to combine a masthead light and sternlight into a single white light that can be seen by other vessels from any direction. This light serves as an anchor light when sidelights are extinguished.

When boating at night what does a single white light on a boat tell you a sailboat is approaching on your port left side?

Powerboat A: When only a white light is visible, you may be overtaking another vessel. Give way to either side.

What is the white light on a boat?

A stern light, which is a white light at the rear of the boat. The stern light needs to be visible across 135 degrees and from two miles away. When the masthead light and the stern light are combined, that makes up 360 degrees.

Is a single white light always a stern light?

For most small vessels, motoring requires red and green (port and starboard) lights, and a white light visible in all directions around the boat. This is almost always a stern light and a masthead light on sailboats.

What lights do you run at night on a boat?

What lights are required on a boat at night? The required lights are: Red and green sidelights visible from a distance of at least two miles away—or if less than 39.4 feet (12 meters) long, at least one mile away—on a dark, clear night.

Boats and Night Navigation

When boating at night what does a single white light on a boat tell you quizlet?

When you see only a white light, you are overtaking another vessel or it is anchored. It is the stand-on vessel, whether underway or anchored. You may go around it on either side.

Where does the white light go on a boat?

The red light designates the vessel's left, or port, side, while the green light designates the right, or starboard, side. A sternlight is a white light that is located at the stern of the boat and is only visible from behind the vessel.

What is a single all round white light for?

Vessels at anchor: sail or power-driven

Vessels at anchor, either sail or power-driven, must show a single white light visible all round.

What should you do if you see a single white light directly ahead?

What Does a White Light Indicate? If only a white light is visible, you may be approaching another craft from behind. You are the give-way-craft and must take early and substantial action to steer well clear by altering your course and passing at a safe distance on the starboard (right) or port (left) side.

What color lights are on a boat?

Red/Green/Bicolor

Colored lights are always sidelights and the different color indicates the side. Red lights are located portside, and green are starboard. The lights shine from dead ahead to 112.5º aft on either side of the vessel.

What do red and white lights mean on a boat at night?

When you are in a power-driven vessel and you see a red, a green, and a white light, you are approaching another power-driven vessel head-on and both vessels must give way.

When you are operating a powerboat at night you see green and white lights on another boat What should you do?

When you are in a power-driven pleasure craft and you see a red, a green, and a white light, you are approaching another power-driven vessel head-on and both vessels must give way.

What action should you take if you are approaching another boat at night and see a green and white light?

Port (Left) Approach

If a green and white light is visible, then another boat is approaching you from your boat's port (left) side. In this situation, you are the stand-on craft and should maintain your speed and direction. The other boat should take early and substantial action to steer well clear of your boat.

Which of the following visual distress signals is approved for use at night?

The electric distress light is accepted for night use only and must automatically flash the international SOS distress signal, which is three short flashes, three long flashes, and three short flashes.

How do you pass a boat at night?

How do I remember port and starboard?

Which side of the boat has a red light at night quizlet?

The red light indicates a vessel's port (left) side; the green indicates a vessel's starboard (right) side. This white light is seen from behind or nearly behind the vessel.

What does red and green light indicate when seen together at night?

The red and green lights. They are visible to another vessel approaching from the side or head-on. The red light indicates a vessel's port (left) side; the green indicates a vessel's starboard (right) side.

Which of the following must you do when anchoring at night?

What does green and white lights mean on boat at night?

The red light indicates a vessel's port (left) side; the green indicates a vessel's starboard (right) side. Sternlight: This white light is seen only from behind or nearly behind the vessel. Masthead Light: This white light shines forward and to both sides and is required on all power-driven vessels.

What should you do when you see red and white lights on another boat at night?

If you're in a powerboat at night, and see another boat's red light and white light, but not the green light, you are generally in a “give-way” position. This means that you must slow, turn, stop, or make whatever other maneuver is necessary to stay out of that boat's way.

What color is a stern light?

The stern light is coloured white. A sternlight is a white light placed as closely as practical at the stern shining constantly, affixed in a manner so that the light will shine out at 135 degrees from the back of the boat and affixed to show the light from aft on each side of a pleasure craft.

When encountering another vessel in darkness What does a visible white light indicate?

Powerboat A: When only a white light is visible, one might be overtaking another vessel. One should give-way to either side to avoid a collision.

What is the name of the white navigation light that shows a solid light over a sweep of 225 from the front of the boat to22 5 on either side of the bow?

Masthead Light:

Arc: Shows a solid light over a sweep of 225° from the front of the boat to 22.5° on either side of the bow. Position: Centered in the boat, facing forward. On common powerboats, this light is often on a short pole on top of the cabin, windshield or at the stern.

Do you have to have red and green lights on a boat?

They are able to be seen from a distance and help an observer be able to tell which side (port or starboard) they are looking at. This can be important, so they know which direction the boat is headed. Red and green lights, called sidelights (or combination lights), are just one part of boating safety.