[TorpX]

Originally Posted by Platapus

You are right. If your crew is going to report torpedo in the water, why not have them tell you whether it is hot straight and normal.

Now, during WWII, what could the crew know about the torpedo after it left the tube?

They could and did track torpedos in WWII. O'Kane describes how his soundman tracked both the target and the torp, alternating between each as they moved closer together. It certainly could be done, but I'm sure there were limitations to this approach. Throw in multiple targets and torps and it would become very difficult. In any case, I'm not sure how much warning your sound operator would be able to give you.

BTW, I've read that the Navy could have had a mechanical safeguard against circle runners, but for obscure reasons chose not to.