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2. How do boaters avoid hazards? What to know about markers ...

   www.aol.com/boaters-avoid-hazards-know-markers...

   Just like traffic lights and signs help drivers on the road, boaters have buoys and signs to guide them to and from shore safely.

3. Navigational aid - Wikipedia

   en.wikipedia.org/wiki/Navigational_aid

   Lead marks (as in "leading a ship into a safe place") and lights are fixed markers that are laterally displaced to allow a mariner to navigate a fixed channel along the preferred route. They are also known as "channel markers". [14] [failed verification] They can normally be used coming into and out of the channel. When lit, they are also ...

4. Buoy - Wikipedia

   en.wikipedia.org/wiki/Buoy

   Marker buoys, used in naval warfare (particularly anti-submarine warfare) emit light and/or smoke using pyrotechnic devices to create the flare and smoke. Commonly 3 inches (76 mm) in diameter and about 20 inches (500 mm) long, they are activated by contact with seawater and float on the surface.

5. Fairway (navigation) - Wikipedia

   en.wikipedia.org/wiki/Fairway_(navigation)

   The term "fairway" usually means all the navigable waters between the fairway buoys (that indicate the ends of the channel), even the routes only accessible to the lighter-draft vessels. [1] Some authors restrict the definition to the linear approach part of a marine waterway, the approach channel leading into a port. [5]

6. Clues at Marker 15? Debris, damage indicate Keys boat may ...

   www.aol.com/clues-marker-15-debris-damage...

   Why the boat left the channel remains the critical unanswered question in the investigation. Clues at Marker 15? Debris, damage indicate Keys boat may have veered outside channel

7. Radio beacon - Wikipedia

   en.wikipedia.org/wiki/Radio_beacon

   A marker beacon is a specialized beacon used in aviation, in conjunction with an instrument landing system (ILS), to give pilots a means to determine distance to the runway. Marker beacons transmit on the dedicated frequency of 75 MHz. This type of beacon is slowly being phased out, and most new ILS installations have no marker beacons.

8. Lock (water navigation) - Wikipedia

   en.wikipedia.org/wiki/Lock_(water_navigation)

   The principle of operating a lock is simple. For instance, if a boat travelling downstream finds the lock already full of water: The entrance gates are opened and the boat moves in. The entrance gates are closed. A valve is opened, this lowers the boat by draining water from the chamber. The exit gates are opened and the boat moves out. [11]

9. Category:Navigational markers - Wikipedia

   en.wikipedia.org/wiki/Category:Navigational_markers

   Pages in category "Navigational markers" The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes. I. Inuksuk; L. Landmark