1MC: 'Mathematicians to the bridge!'

[commandosolo2009]

Good evening Ladies and Gentlemen,

Been a long time since I started something like this, but I have this idea and I want to know how to pull it off.

Say I'm abeam starboard side of an incoming column of ships. And I want my eels to hit at bearing 000 (dead on) so, I guess the normal thing to do is to:
- achieve alignment (which is tad difficult if not impossible @ 100% realism)
-obtain column course
- obtain target speed and sync with firing AOB
- firing AOB
- torpedo range at set torpedo speed (which by the way, would be a mark 18)


I've tried use S/O/H , C/A/H,and T/O/A (trigonometry) to establish an angle but the speed thing is what I'm missing.

Bottom line, is there an equation or formula for incorporating the speed of the target ship into the sine , cosine and tan aspects?

I dont want to end up like Tangs PCO at the Inland sea, firing all 4 aft mark 18s and 2 of which broach giving away..

Sincerely,
CS2k9