1.  Position

·  Dead reckoning and estimated position

·   

·  Satellite-derived position

·   

·  Use of waypoints to fix position

·   

·  Radar fixes

·   

·  Techniques of visual fixing

·   

·  Fixes using a mixture of position lines

·   

·  Relative accuracy of different methods of position fixing

·   

·  Areas of uncertainty

·   

6

B

A

A

B

B

B

A

C

2.  The magnetic compass

·  Allowance for variation

·   

·  Changes of variation with time and position

·   

·  Causes of deviation

·   

·  Swing for deviation (but not correction)

·   

·  Allowance for deviation

·   

·  Different types of compass

·   

2

B

B

B

C

C

C

3.  Tides

·  Causes of tides - Springs and Neaps

·   

·  Tide tables - sources

·   

·  Tide levels and datum

·   

·  Standard and secondary ports

·   

·  Tidal anomalies (Solent, etc.)

·   

4

C

B

B

B

C

4.  Tidal Streams

·  Sources of tidal information

·   

·  Tidal stream information in sailing directions and Yachtsman's Almanacs

·   

·  Allowance for tidal streams in computing a course to steer

·   

·  Tide rips, overfalls and races

·   

·  Tidal observation buoys, beacons etc.

·   

3

B

B

A

B

B

5.  Buoyage

·  IALA system buoyage in Region A

·   

·  Limitations of buoys as navigational aids

·   

1

B

C

6.  Lights

·  Characteristics

·   

·  Ranges - visual, luminous and nominal

·   

·  Rising and dipping distances

·   

·  Light lists

·   

1

B

C

C

C