0
The primary underway lights are the Port/Starboard running lights, the rudder light, and a flashing yellow dome light.
On older boats the Port/Starboard lights were housed in the sail, and had to be deployed manually by an Electrician's Mate once surfaced and the bridge manned. Today they're likely deployed automatically. The Port light is Red, Starboard is Green.
The rudder light is on top of the rudder, and is an electrically powered white light.
The yellow flashing light is deployed via a raisable mast; it is a navigational indicator to all ships in the area that there is a surfaced submarine underway. The light is used because submarines are very low in the water, and are difficult to see in good conditions with standard running lights. Without the yellow light, it's easy to mistake it for a regular sailing or fishing vessel.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What does red green and white lights on a boat mean at night?
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.
What should you do when operating a boat in Oregon in conditions of reduced visibility?
You should do the same in Oregon as you would anywhere else...display the appropriate navigational lights whenever the boat is operated between sunset and sunrise, or during periods of reduced visibility such as fog, rain or haze. Lights conforming to International Rules meet the requirements of Inland Rules. See the link below for more specific information on required navigational lights.
What does a red and green light mean at night on a boat?
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.
On a boat what does a red and green light mean at night?
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.
Did German u-boats have any external lights in World War 1?
Yes, they had navigational lights.
Are navigational lights on all sides of the Washington monument?
yes there are lights on all four corners or the monument...
Why do jet skis don't have navigational lights?
Jet skis are classified as Personal Watercraft and it is illegal to operate a PWC after dark therefore no navigational lights are needed. The same applies to kayaks, canoes, and any other PWC.
What is true of navigational lights on power driven vessels?
On power-driven vessels, navigation lights must be on during periods of restricted visibility.
How were the colors on the red and green navigational lights originated?
it was because it was red and purple it was because it was red and purple
How can you build a computer controlled musical Christmas lights display?
To build a computer controlled musical Christmas lights display, you need to hook up your computer to a micro-controller, that is attached to the circuit of lights. For simplicity, Arduino is recommended for building this display.
You are operating a powerboat at night. You see red green and white lights on another boat. What do these lights tell you?
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.
You are operating a powerboat at night. You see red green and white lights on another boat what do these lights tell you?
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.
