Thread: HELP
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Old 10-03-21, 09:20 AM   #8
Pisces
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Quote:
Originally Posted by derstosstrupp View Post
.... It should be said though that computing lead angle for a perpendicular attack using that slide rule is somewhat laborious, because it does not include a tangent scale. Sub Buddy app, however, does (highly recommended).

Something like this is very easy to calculate with a calculator. For a perpendicular attack, lead angle = arctan ( target speed / torpedo speed).

So on a calculator take target speed divided by torpedo speed, and then press “tan-1”.
Meh, his AoB across the torpedo speed, then the lead angle is across the target speed. When you assume the AOB is 90 in perpendicular setupo then this is close enough.
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