i got one more question as im a little confused...lost actually.. sometimes ive noticed in the muck of things ill be notified of a ship heading for example 297 degrees...now if i take 297 and add my course say its 217 - 360 = 154 but...when i look out my periscope...its almost like hes going a whole complete direction then what i calculated...does this -360 thing apply to every bearing and heading you receive?
also, i have tried your 90 degree angle TDC but im using real navigation and so things are not adding up to me or am i just completly stupid and dumbfounded...math isnt my strong point lol...at all lol like i beleive your speed in knots was 7 knots as he travelled 2700M or something...mine...well mine was way higher as i didnt really know where to measure to as i dont got map contacts either really so how would i know where to measure to get targets speed and such?
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