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. An all-round white light (if vessel is less than 39.4 feet long) or both a masthead light and a sternlight.
What does a single white light on a boat tell you at night?
Powerboat A: When only a white light is visible, you may be overtaking another vessel. Give way to either side. Powerboat B: You are being overtaken.
What light can be seen on a head on vessel during night time?
Sidelights: These red and green lights are called sidelights (also called combination lights) because 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.
When should anchor light be on?
Vessels at Anchor
When anchored at night outside a designated anchorage, an all-round light visible for at least 2nm is required. During the day, when anchored outside a designated anchorage, a black anchor ball must be displayed.
Do I need navigation lights on my boat?
All recreational vessels must show an all-round white light while at anchor. If the vessel is drifting (underway but not making way) the vessel must display sidelights, masthead light and stern light. … A vessel of less than 12 meters in length, when aground, is not required to exhibit an all-round white light.
What side do you pass an oncoming boat?
You must take early and substantial action to keep well clear of the other boat by altering your speed and course. You should pass at a safe distance to the port (left) or starboard (right) side of the other boat. If a safe route exists, you should always attempt to pass the boat on the starboard side.
What does a visible white light indicate on a boat?
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.
When can a vessel use the three red lights in a vertical line?
A vessel constrained by her draught may, (and not “shall”!) in addition to the lights prescribed for power-driven vessels, exhibit where they can best be seen three all-round red lights in a vertical line, or as day sign a cylinder.
What lights does a trawler display at night?
Commercial ships trawling should show lights green over white when engaged in trawling at night. All ships should keep clear of fishing ships.
What color light goes on the front of a boat?
A masthead light is a white light at the front of the boat. The masthead light needs to be visible across 225 degrees and from two miles away. 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.
What do 3 short blasts of a horn indicate?
One short blast tells other boaters, “I intend to pass you on my left (port) side.” Two short blasts tell other boaters, “I intend to pass you on my right (starboard) side.” Three short blasts tell other boaters, “I am operating astern propulsion.” For some vessels, this tells other boaters, “I am backing up.”
Does anchor light drain battery?
Switching to LED lighting, including the anchor/all round light, will significantly reduce the drain on your battery. The red/green running lights can remain incandescent, as you’re likely to only use them while also running the engine.
What must you do when anchoring?
Stop your boat and lower your anchor until it lies on the bottom. This should be done up-wind or up-current from the spot you have selected. Slowly start to motor back, letting out the anchor rode. Backing down slowly will assure that the chain will not foul the anchor and prevent it from digging into the bottom.
Can I put headlights on my boat?
There is a natural tendency for a boater to want to use a searchlight or spotlight at night, just as one would use headlights on a car. But headlights won’t work on the water. … Secondly, other boats will not be using searchlights (headlights). The only way you’ll have to spot them is by their green, red or white lights.
What types of boats require navigation lights?
Navigation Lights for Powerboats
Power driven vessels underway shall exhibit a masthead light forward, sidelights and a stern light. Vessels less than 12 meters in length may exhibit an all around white light and side lights.
Why do boats have blue lights?
These laws were written primarily to prevent other mariners from confusing a recreational boat with law enforcement or other emergency vessels. In particular, law enforcement officials are concerned that rub railing and underwater illumination could be mistaken for flashing blue lights under rough sea conditions.