Just finished reading, Convoy, By Martin Middlebrook, a great read
He mentioned in book,
The Germans, however, would not get away totally unscathed.
Beverley, having narrowly escaped destruction from torpedoes fired by U-616--her erratic, zig-zag course and high speed saving her--gave U-228 a severe depth charging which caused a small leak in the U-boat’s hull. The destroyer’s ASDIC then picked up another contact: U-530, commanded by Kapitänleutnant Kurt Lange--at 39 believed to be the “second oldest captain in the U-boat fleet”--and hunted her for over two hours, subjecting her to a depth charge barrage that knocked out lighting and caused leaks in the boat's pressure hull. Fortunately for the submarine, the sole
Mark X depth charge--a one-ton torpedo-like affair nicknamed "Little Hector" that almost certainly would have given the coup de grace to the already wounded undersea raider--malfunctioned, the firing mechanism failing.
Beverley subsequently lost contact with U-530--which then escaped--and depth-charged U-600 soon thereafter, but did not score a "kill."