[BroJoeK]

headline: "Secret Weapons-II (Baldwin) – 8"

"And torpedoes can also be adjusted so that they will "circle" when dropped, turning in an expanding spiral until they find a target.
Such circling torpedoes are particularly useful in a crowded roadstead, or harbor, and they have already been used in this war."

Something tells me our submariners will not find these "circling torpedoes" quite so wonderful.

[henkster]

Just ask Dick O’Kane about those circling torpedoes.

http://www.nationalww2museum.org/see-hear/collections/focus-on/the-uss-tang.html