ppt for Motorboat Operator's Training Course (MOTC) course

2. Aids To Navigation (Chapter V in student manual)

4. What Are Aids to Navigation? Mark safe water and assist boat operators in determining their position in relation to land or hidden dangers ATONS

5. Types of Navigation Aids Lateral Information and Regulatory

6. Used in conjunction with Navigation Charts

8. Lateral Aids in Bodega Bay

13. Information & Regulatory Aids

14. Means to Relay Information Shapes C o l o r s Numbers Letters Lights Sounds

15. Lateral Aids in Navigation Mark the edge of safe water along a navigation route

16. Lateral Aids in Navigation Are used in conjunction with nautical charts

17. Navigational charts viewed on-line http:// www.nauticalcharts.noaa.gov http://hd-sf.com/livemap.html

19. U.S ATONS: IALA-B System Western Hemisphere Lateral markers in the IALA-B system follow the 3R Rule : Red on Right when Returning upriver (or from sea)

20. IALA-B Markers Cans Cylindrical-shaped buoys are marked with green markings and odd numbers . They mark the left side of the channel as a boater enters from the open sea or heads upstream. Hint: “7Up” comes in a green can. Nuns Cone-shaped buoys are marked with red markings and even numbers . They mark the right side of the channel as a boater enters from the open sea or heads upstream. Hint: “V8” comes in a red bottle.

21. Other IALA-B Markers Lighted Buoys Buoys use lateral marker shapes, colors and numbers and have a matching colored light. Beacons, Day Boards and Daymarks Permanently placed signs attached to structures. Common daymarks are red triangles (equivalent to nuns) and green squares (equivalent to cans). These may also be lighted. Range Markers Found in pairs with one higher than the other. Indicate the center line of a channel by aligning both as you pass through the channel.

22. Preferred Channel Marks Junction markers indicate the preferred channel at points where the waterway splits or branches off in another direction

23. Reading A Chart The first marker seen entering from sea is the open, or safe water marker. The RW "G" means that it is a Red and White striped marker with, in this case, the letter "G" on it. or

27. Reading A Chart The next marker you see as you enter this waterway is G "1" Fl G 4 sec . This tells you it is Green , has the number 1 on it, and it Flashes Green once each 4 seconds .

28. Reading A Chart R N "2" plus the red symbol indicates a Red Nun buoy with the even number 2 on it. Conversely G C "3", is a Green Can buoy with the odd number 3 on it.

29. Reading A Chart A junction marker referred to as RGN "C" uses its top color to show the primary channel ( Red and Green Nun buoy). Use the top color and shape as if it were a stand alone marker if you want to follow the primary channel. In this case leave the Red Nun to the right. Otherwise use the bottom color.

32. Intracoastal Waterways (ICW) Yellow Squares indicate you should keep this marker on your port side. Yellow Triangles indicate you should keep this marker on your starboard side.

33. Intracoastal Waterways (ICW)

34. Uniform State Waterways

36. Yellow Markers = Caution Other Navigational Aids

39. Other Navigational Aids Range Markers Off to starboard Past the turning point

40. Range Marks in Bodega Bay

41. Other Markers You May Encounter Divers Flag indicates scuba divers or snorkelers are operating in area Alpha Flag Vessel engaged in diving operations

44. Know which systems are used in your area. In addition, be aware of “local knowledge” Navigation & Navigational Aids

45. Fl R 15s 50ft HORNS Priv

48. Lateral Aids in S.F. Bay

55. Know which systems are used in your area. In addition, be aware of “local knowledge” It is the Operator’s responsibility to navigate safely and effectively Navigation & Navigational Aids