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What is the jingle used as a reminder for which side of a channel red buoys and daymarks are on?
"red-right-returning."
What is a navigational range?
2 day beacons
What do they consist of?
A navigation aid in navagtial water
What are the eight main types of buoys in U.S. waters?
Can, Spar, Nun, Bell, Whistle LIghted Bell, Lighted, and Lighted whistle
How are channel buoys and beacons in U.S. waters numbered?
Even and odd numbers
What is the name of the inland channel in which light-draft vessels can navigate from the Chesapeake Bay almost to the Mexican border without going into the ocean?
International water way
What are light lists?
Publications in books
What do they include?
These include lighthouses, navigation lights, buoys, and beacons.
What is the purpose of buoys and beacons?
They mark channels and delineate the limits of safe areas of water in which a vessel can operate
Why must buoys alone not be depended upon for piloting?
They may drag their moorings in heavy weather or be set adrift light are sound can go out
What are navigation marks?
are buoys and beacons placed in navigable waterways to assist a vessel's navigation in restricted waters.
What was the traditional purpose of a lighthouse?
assistance to navigators or where very dangerous water required a warning beacon of long-range visibility. Shorelines and light
Upon what factors does it depend?
depends on its intensity and height above sea-level, the height of the observer's eye and the existing meteorological visibility conditions
What are aids to navigation?
devices specially constructed to assist navigators in the safe navigation of their vessels or to warn them of dangers or obstructions to navigation.
What are the three principal phase characteristics of navigational lights? Briefly describe each
fixed, flashing, and occulting. Fixed lights burn steadily. Flashing lights show single flashes of light at regular intervals-never more than thirty flashes per minute Occulting Lights are totally off at regular intervals
What are the two main systems of buoyage in use worldwide?
lateral system and the cardinal system.
What do safe-water buoys mark?
mark fairways, mid-channels, and offshore approach points.
How do preferred-channel buoys indicate the preferred channel?
mark obstructions or channel junctions. They are of no particular type or shape.
What is the significant color identifying all buoys, daybeacons, or light structures along this channel?
red and green
How are channel buoys and daymarks colored in U.S. waters?
red buoys mark the right side of a channel and green buoys the left side,
What is meant by the visibility of a navigation light?
the distance in nautical miles that a mariner can see the light at night.
What is a daybeacon?
unlighted structural beacons.
