Peter Zschech

On 10 October 1943, U-505 finally managed to leave successfully on patrol after six failed attempts. After only 14 days, she drew the attention of a pair of Allied destroyers while surfaced off the Azores and came under concentrated depth charge attack, a procedure all too common for U-boat crews by this point in the war. While riding out the depth charging, Zschech apparently suffered a severe mental breakdown and committed suicide by shooting himself in the head with a Walther PPK pistol in his control room, in full view of his shocked crew. His second-in-command, Oberleutnant zur See Paul Meyer, swiftly took command, rode out the remainder of the attack per standard procedure and returned the boat to port with light damage. Amazingly, he was not commended for his quick restoration of military discipline, but only "absolved of all blame" by the Kriegsmarine, who seemed to view U-505's troubles as proof of a generalized lack of discipline by her command crew, further harming whatever morale remained in the command staff of U-505.

U-505's first and very successful commander was Kapitänleutnant Axel Löwe, who was relieved for illness in October 1942. Löwe was replaced by Zschech, a veteran U-boat officer, who served for a year as watch officer in U-124. Zschech was described as a "hard" commander, ambitious in his first command, indifferent to the morale of his men, and bad-tempered.

On 11 November 1942, a month into her first war patrol under Zschech, U-505 was heavily damaged by air attack in the Caribbean Sea. The direct impact of a 250-lb bomb from a Lockheed Hudson on the foredeck tore the deck gun from the boat and severely breached the hull. Zschech ordered his men to abandon ship but his officers refused and managed to keep her afloat after a marathon two-week effort. She eventually limped back to Lorient on 12 December, earning the vessel the mixed honor of being the most heavily damaged U-boat to successfully return to port during the war.

Peter Zschech (1 October 1918 – 24 October 1943) was the second commander of the German submarine U-505. He earned notoriety as the first commanding officer to commit suicide while in active command of a naval vessel, as well as the only submariner to ever do so while underwater.