Download - ATONs (Aids to Navigation)
![Page 1: ATONs (Aids to Navigation)](https://reader035.vdocuments.site/reader035/viewer/2022081503/56816587550346895dd83c57/html5/thumbnails/1.jpg)
ATONs (Aids to Navigation)
Justin CherniakCruising Skills ClassroomHoofer Sailing Club
![Page 2: ATONs (Aids to Navigation)](https://reader035.vdocuments.site/reader035/viewer/2022081503/56816587550346895dd83c57/html5/thumbnails/2.jpg)
Aids to Navigation
Items found on waterways to identify safe channels to pass
Buoys (floating) or beacons (fixed) Meaning defined by combination of
shape, color, number and sometimes light pattern
![Page 3: ATONs (Aids to Navigation)](https://reader035.vdocuments.site/reader035/viewer/2022081503/56816587550346895dd83c57/html5/thumbnails/3.jpg)
Lateral Marks Indicate the left and right sides of a channel “Red, right, returning” – keep red on right side
when going from larger smaller body of waterLeft side
• Flat top• Cans – flat cylinder• Square day mark
• Green colored• Odd Numbers• Indicate left side of channel
when returning from sea
• Right side• Pointed top
• Nuns – conical shaped buoy
• Triangle day mark• Red colored• Even numbers• Indicate right side of
channel when returningfrom sea
![Page 4: ATONs (Aids to Navigation)](https://reader035.vdocuments.site/reader035/viewer/2022081503/56816587550346895dd83c57/html5/thumbnails/4.jpg)
Other marksSafe-Water Marks Junction Marks
• Used to indicate the center of a channel (from seaward approach)
• Can be approached from all sides
• Red and white stripes• Unnumbered (although
sometimes lettered)
• Indicate a fork in the channel• Unnumbered (although
sometimes lettered)• Red and green striped• Red top - treat as red lateral
mark• Green top– treat as green
lateral mark
Mooring Buoy Isolated Danger Mark• Indicate a mooring area• Can be used to attach boats• White with blue top
• Indicates a danger that should be avoided but can be passed on all sides
• Black and red with 2 balls on top
![Page 5: ATONs (Aids to Navigation)](https://reader035.vdocuments.site/reader035/viewer/2022081503/56816587550346895dd83c57/html5/thumbnails/5.jpg)
Regulatory Marks
Indicate some sort of danger or other regulatory measure
White with red stripes An open diamond shape signifies danger. A diamond with a cross in it signifies an
exclusion area that you may not enter.• A circle indicates an
upcoming operating restriction, such as a speed limit or no wake zone
• A square or rectangular shape is used for conveying instructions or information
![Page 6: ATONs (Aids to Navigation)](https://reader035.vdocuments.site/reader035/viewer/2022081503/56816587550346895dd83c57/html5/thumbnails/6.jpg)
ICW - Intercoastal waterway Inland waterway that runs around
coast from North -> South and East -> West
Have yellow symbols on buoys that should be followed instead of traditional green/red
Square – keep ATON to port(like a green ATON)
Triangle – keep ATON to starboard (like a red ATON)
![Page 7: ATONs (Aids to Navigation)](https://reader035.vdocuments.site/reader035/viewer/2022081503/56816587550346895dd83c57/html5/thumbnails/7.jpg)
Example