Quote:
Originally Posted by Pisces
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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Well, say the target speed is 15 kn, shooting a 30 knot torpedo. If you just assume 90 AOB for a perpendicular setup, that is going to give you a lead angle of 30. When in reality using the correct formula for a perpendicular lead angle, yields 26.6. That’s a big difference depending on the range.
There are times when “close enough” is fine, but unless somebody is told that close enough only applies at close range, they would be led astray.
Also easily solvable using vector analysis. Using the fact pattern above, draw a line on the map 30 km long straight up. Draw a line going from the top end of that line but perpendicular, 15 km long. Now draw the third leg of the triangle and measure the angle at the bottom, your lead angle. Allows you to quickly figure out your lead angle for any desired track angle.