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Visual approach slope indicator


The visual approach slope indicator (VASI) is a system of lights on the side of an airport runway threshold that provides visual descent guidance information during approach. These lights may be vis...

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


Sail boat is coming at you.

In Any Type of Vessel—If You See Only a Green Light or Only a Red


Encountering a Sailing Vessel at Night. When you see only a green light or only a red light, you may be approaching a sailing vessel and you must give way.

Boat Navigation at Night BOATsmart! Knowledgebase


Everything you need to know about boat navigation at night, includes ... If you meet a vessel and see a green and red light but no masthead (white) light, ... If you see a white light on its own it indicates that you DO NOT have the right-of- way.

What Do the Different Color Lights on a Boat Mean? | Trails.com


If you see a red light coming at you at night, it means the boat is on your boat's right, ... A white light that can be seen from all perspectives of the boat is supposed to be ... A green light over a white light comes from a fishing boat that is trawling, ...

Boating Definitions and Mnemonics


Do not attempt to learn the rules by studying this Web page. ... areas of boating is the light combinations used to indicate various types of ships at night. ... The basic running lights are white to the stern of the boat, red to port, and green to starboard. ... Two red lights in a vertical line indicate a vessel "not under comma...

Navigation lights; Learn how to identify different kinds of boats at night.


Notice in the above illustration if you put all three lights together they would form a ... combined together into one unit (but still show red and green appropriately) if the ... Because it must be seen from all around it needs to be at the top of the mast. ... With the engine on we turn on the masthead light to indicate we are under ...

Lights, buoys - aids to navigation. - SailingIssues


means a green light on the starboard side and a red light on the port side each ... less than 50 metres in length shall not be obliged to exhibit such light but may do so; ... can best be seen, two all-round lights in a vertical line, the upper being red and .... These lights or shapes indicate that it is dangerous for another vessel to...

Boating License Exam - Practice Test - USA - AceBoater.com


Which letter represents the masthead light of the boat in the following figure? ..... do red and green lights on a sailboat indicate when seen together at night?

FREE BOATING EXAM l Online Boating License Test - AceBoater.com


Which letter represents the masthead light of the boat in the following figure? ..... do red and green lights on a sailboat indicate when seen together at night?

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Nighttime-Navigation | Washington Boating Handbook


Always be on the lookout for the lights of other vessels when boating at night. ... The red light indicates a vessel's port (left) side; the green indicates a vessel's ... Sternlight: This white light is seen only from behind or nearly behind the vessel. ... the other vessel operator does not see you or does not know the navigat...

Boating Navigation: Operating in Darkness - Part 2


Sep 25, 2013 ... Powerboat A: When white, red and green lights are visible, you are approaching a powerboat head-on. Give way to your starboard side.

Navigation Lights - BoatSafe.com


Operating at night (or in reduced visibility) can present some special challenges. ... or worse yet bifocals, you simply don't see as well at night as you do during the day ... These lights not only have a certain arc through which they can be seen but ... White. 2. Starboard Sidelight. 112.5º. Green, 1. Port Sidelight, 112.5º, Red,...