Well, i would outlast them if that damn patrol didnt show up...
After 2 real life hours, about 100-120km away from the place i attacked the convoy after countless depth charges from 2 DDs (Flower Class and Black Swan Class if i remember right) another DD showed up. Couldnt do much nor go at deep water cause a single DC blew off a considerable chunk of my bow torpedo room. -48% integrity in a single DC.
Ultimatelly, another DC got me and my boot was crushed.
I dont know why but i decided not to D.I.D. this, this time.