Bwahahah, now i sunk Cimarron with Medium class troop transport even they were zigZaging as hell!
It was salvo of all 4 eels from standing position to 90 degrees target and thx to their zig zag path it really did not result as i wanted, but everyone got 1 torp.
But it was for a price - troop was broken in half by torpedo which was targeted to tanker, tanker got one targeted to its nose (but got it to the middle and was only burning..).
I emerged... And .. the Cimarron started to fire (which was totally unexpected) aaand he injured my navigator..
So now i have to really learn manual celestial navigation