Thumpalumpacus
Major
The zig-zag torpedoes (FAT and LUT) were used, but had only limited success because of the difficulty of setting the zig-zag track correctly - you needed pretty precise distance, speed, and course data of the target which were rarely available.
Forgive what may be an ignorant but honestly-asked question -- what use would such an approach serve? Wouldn't it be better to just shoot it straight if you can't put homing on it? Wouldn't a straight course be easier to compute? What am I missing here?
Again, not trying to be a jerk, just wanting to understand the thinking of the time.