CALCULATIONS&CHARTWORK FOR NAVIGATING A BOAT

Theoretical Navigation Grade A Examination - Allotted time 120 minutes
S u b j e c tFam.Prof.
 
The Geographic Grid: Defining a position with Latitude and Longitude, and by bearing and range.   X
The Compass:  Variation, deviation, composite compass error, course, bearing, relative bearing, different compass types, proper use of the deviation tables.   X
Calculating distances: Calculating the distance to the horizon or to an object, using the height of the observer’s eye and the object’s height, in meters or in feet.   X
The Marine Chart: The Mercator Chart, chart symbols and their meaning, depth markings, measuring distances and bearings, sources for updating charts, using a chart catalogue.   X
Courses: Drawing tracks on the chart, plotting a course from one point to another, defining a position by means of: Cross-bearings, a running fix, distance-off and depth of water, dead reckoning position (DRP), distance-off and one bearing, two range-circles.   X
Compass Error: Determining the compass error by means of a Transit Bearing and a bearing to Polaris (assuming that it is bearing due North).   X
Determining the leeway caused by wind or current, planning a course to counteract that leeway, calculating the effective speed. (SOG).   X
Time: Greenwich Mean Time (GMT, also known as UTC), Local Mean Time, time zones.   X
Transferring a GPS position on a chart.   X
Safe Passage: Passing a shore point at a given range.   X
The general concept of the tidal  cycle (high and low water), what are the expected tidal changes on the Israeli shores. X