Odd warship

[Obltn Strand]

I recently intercepted an unprotetected convoy east of Newfoundland. Or so it appeard at first. After two torpedo hits hydrophone operator informed of new warship contact closing fast. I dived deep and it started to ping me with asdic. Warship getting ever closed I prepared for depth charges but it just passed by. No charges. This went on about an hour. Not a single depth charge dropped.

Now what kind of warship has asdic but no depth charges? Convoy it was escorting was east bound so it should have it's racks fully loaded with depth charges. I didn't recognize the warship, though it looked like a destroyer from periscope.

I play with GWX 3 and this encounter happened march -42.