 "U-193"s second foray began with her departure from La Pallice, (she had moved there in September), on 12 October 1943.Moving to the Gulf of Mexico, she sank the independently sailing 10,000-ton American oil tanker "SS Touchet" west of Florida with the loss of ten of her crew.The remainder of the patrol was a failure, however, as a combination of dud torpedoes, well-organized convoys and effective counter-measures combined to prevent the boat gaining a single hit.