Coast Guard Cutter Vessel Sinks Six U-Boats

The Coast Guard cutter Campbell is on Atlantic convoy duty, engaging in submarine warfare. The Campbell successfully fights off a wolf pack of U-boats, sinking several submarines. However, the vessel suffers damage after ramming a sub. The crew undertakes repair efforts in icy waters, aided by a Polish destroyer and a tugboat, before heading home after a successful mission.

What was the significance of the ashcan depth bombs mentioned in the text?

How many submarines did the Campbell score in 24 hours?