Hit a Large Merchant in CO42 yesterday just before dawn. She was being escorted by a Town class DD & a V&W. Was detected at the last second before I launched 2 T1's at her. Both torpedos hit home and crippled her but she stubbornly refused to go down (ping-pong balls?). The escorts were very persistant & pestered us for well over an hour before they gave up. Had to wait another while until the DD's left the area. Went to periscope level & decided to finish the job with a stern shot. That one failed to detonate & bounced harmlessly away.
Finally said "enough is enough", surfaced and destroyed her with the deck gun at 3100m.
U-74 out...