A small Q regarding RL WW2 convoy actions if you please...

[Jimbuna]

Originally Posted by Torplexed

Unless you had the incredible luck to come across an unburnt-out tanker porting diesel oil you won't find much. Most WW2 merchant vessel powerplants ran on coal or heavy fuel oil, because they were cheap.

Precisely....and before the heavy oil was of use it first had to be run through the purifiers...not many subs would have the capability.