Screen Shot 2017-07-14 at 10.38.09 AM · 2017. 7. 14. · 150 compass course are plotted and a...
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Screen Shot 2017-07-14 at 10.38.09 AM · 2017. 7. 14. · 150 compass course are plotted and a curve drawn, from which it is easy to obtain the proper compass course for any desired
