How to send torpedoes at 2 or 3 ships at the same time ?

[xiombargdei]

hello

I have been reading a lot of tutorials about manual targetting and such. I'm getting a pretty good grasp on how to do it and can sink quite any lonely boat now.

But, in the case of a convoy how do you set up several firing solutions to fire at 2 or 3 boats at the same time ? reading this article it says :

Originally Posted by Rocks'n'Shoals

Additional comment: For a convoy attack, I use the same procedure, and set up for an average distance. Using an AoB between 60° and 80° (depending on target speed), I can fire at two or three ships which are aligned in a row, furthest first, nearest last, to time the torpedo impacts near-simultaneous. Let them run into the firing reticle, one ship after another, they are all traveling at the same course and speed - unless previously alerted, which is when they go into wild zigs...

How can you hit the furthest ship first if you let the ships "run into the firing reticle, one after another" ?
If I hit the first ship, the others will get allerted and slow down / zigzag and avoid my torpedoes.

can anyone point me to the right direction ?