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Originally Posted by SeaQueen
That was very useful, but there's one thing I'm unclear about. What's to quickly distinguish a slow or distant target from a target on a collision course? Both would exhibit low bearing rates.
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A close contact will have a high bearing rate regardless of the targets speed (or lack of it). If you have a contact with a low or zero bearing rate, reverse course (with a turn AWAY from the contact!). If the contact is close, the bearing rate will increase. And change depth, preferably deeper.
A far contact's bearing rate is almost all due to own ships speed.
Remember, submarine manuevers are three demensional; verticle, horizontal, and SPEED. (As apposed to a skimmer, which is stuck on the surface.)
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