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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997
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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997 |
10-12-23, 05:38 PM
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#14 |
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Silent Hunter
  Join Date: Dec 2004
Location: AN9771
Posts: 4,904
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Another thread necromanced into the living.
3 minutes stems from 100 yards in a nautical mile. Or movement of 1 knot in 1/20th of an hour. As 1 nautical mile is actually 2025.something yards. So close to 2000 yards for an easy measure. And 3 minutes would be close to the time it takes 1 knot to move 100 yards on graphpaper, so 1/20th of a nautical mile. It's 1.2 % inaccurate, but good enough for Government work, as they say.
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