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#3 |
Grey Wolf
![]() Join Date: Mar 2005
Location: St. Louis, MO, USA
Posts: 772
Downloads: 13
Uploads: 0
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Counting prop revolutions on the sonar, visual estimation, and plotting distance druing a known time (from radar, visual, sonar).
Real skippers had the added dimension of frequent zig zags along a base course and speed changes that for the most part we don't have to deal with. |
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