1. For close range cyrcling DDs, if you fire at EXACT 15degrees relative (tube open), and their Aob is at that moment 80-100 degrees you will lead a 45kts torpedo in the middle of the target. It seems their speed is always the same when attack and cyrcle.
2. My tables, give the firing angle for any impact angle in steps of 10degrees, not only 90degrees for 30 and 45 kts torpedoes.
3. For a row of ships, I use to approach for a middle ship for gyro=000. For the other ships, I adjust the gyro angle=bearing diffrence for diffrences up to 20degrees, or I change my coarse accordingly.
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