Another thing to consider is that column seperation is equal......So when your torpedoes cross a column going for a target in the next it's time to shoot torpedoes at a ship in that nearer column.
It's nice to have a table indicating torpedo travel distances over time for varoius ranges.........This way you don't have to do so much mental gym.
Another thing...... I maneuver aggressively once I start shooting. No point sitting at 2 knots after you've shot torpedoes. You're just asking to get pounded. You can put quite a bit of distance between yourself and where escorts will begin their search if you do it right.
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