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Originally Posted by klh
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Originally Posted by jimmie
YES!! Thank you VERY much!  I will try this in the game to digest well!
I think you should include this somewhat "advanced" (?) example in the already well-written tutorial to make it yet better! |
By the way Jimmie, either formula will work for convergent or divergent courses. Because the sine function is symmetrical around 90 degrees, we don't really have to subtract the angles from 180. It's just easier for me to visualize, and the attack disc calculator only goes up to 90 degrees.
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One of the neat things about the American version (SACF/IS-WAS) is that the wheel with the Sine scale on it had 4 of them to cover the entire compass:
006 to 090 degrees
096 to 180 degrees
186 to 270 degrees
276 to 360 degrees.
You don't have to do any conversions in your head or on paper. You just read them off the wheel. That helps quite a bit when using it to find the AOB of a ship that is greater than 90 degrees.