Thread: Navigation

Hi I always taught people to remember one word "MAGNETICLESS" the magnetic bearing should always be less in NZ. So if taking a bearing off the map (doesn't need to be orientated) and putting on a compass you would take the magnetic variation off the map grid bearing e.g. using your compass as a protractor you measure a bearing of 240' G on the map, the bearing you would put on your compass to follow is 240'G-022'= 218'M. Another good tip is to use the compass dial as a slide rule, so when subtracting or adding the magnetic variation do it on your compass, ie move it 2' then two lots of 10' and the answer is on the dial and no mind bending maths to contend with especially if subtracting around the 000'/360' mark.
Cheers
Ruger7mm