1. Navigation
NAU 102
Lesson 8

2. Pilot Charts Small scale charts covering ocean basins.
Used for voyage planning, not positioning.
Enable you to select the fastest, safest routes.

3. Pilot Charts Graphically depict: Recommended routes Ice limits
Prevailing winds
Ocean currents
Average wave heights

4. Pilot Charts Published quarterly by NGA. 5 Atlases cover the world.
Each atlas consists of 12 charts, 1 for each month of the year.

5. Pilot Charts

7. Pilot Charts

8. Published annually by NOS
Tide Tables
Data on high & low tide.
Published annually by NOS
4 volumes by location

9. Tide Tables Published in 4 volumes Europe & West Coast of Africa
East Coast of North & South America
West Coast of North & South America
Central & Western Pacific & Indian Ocean

10. Tide Tables
Daily predictions of HW & LW at reference stations (major ports).
Corrections can be applied for subordinate stations.
Tables enable calculations of height of tide at any time.

11. Tide Tables

12. Tide Tables

13. Published annually by NOS
Tidal Current Tables
Data on tidal currents
Published annually by NOS
2 volumes by location

14. Tidal Current Tables
Daily predictions of maximum currents at reference stations (major ports).
Corrections can be applied for subordinate stations.
Tables enable calculations of speed of tidal current at any time.

15. Tidal Current Tables

16. Tidal Current Tables

17. Radio Navigational Aids
Location & frequencies of aids useful for radio navigation
RDF stations
Radiobeacons
Loran stations
Published by NGA

18. Radio Navigational Aids
Radio weather reports
Maritime safety information broadcasts
Distress communication, etc.

19. Radio Navigational Aids

20. Radio Navigational Aids

21. Radio Navigational Aids

22. Radar Navigation Manual

23. Radar Navigation Manual
Chapter 4 – Radar Navigation.
Use and limitations of radar in navigation.

24. Radar Navigation Manual
Recognition of radar beacons (racons) & ramarks.

25. Radar Navigation Manual Finding (“fixing”) your position using radar.

26. Nautical Almanac Published by U.S. Naval Observatory
Enables you to calculate:
Position of celestial bodies.
Sunrise, sunset.
Moonrise, moonset.

27. Nautical Publications
Like charts, publications must be up to date.
Always use the current edition.
Corrections are promulgated through Notices to Mariners

28. Weekly Notice to Mariners
Lists changes to publications.
Often involve cutting & pasting.

29. Weekly Notice to Mariners
Completed corrections are recorded on the publication’s Record of Correction page.

30. Local NTM Issued by Coast Guard
Contains information of local interest only.
Often of temporary nature.

31. Local NTM

32. Introduction to Navigation
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