Second Patrol
The boat remained in port until 27 August. Decorated veteran Korvettenkapitän Günter Kuhnke, Commander of the 10th U-boat Flotilla, took command for her second patrol. U-853 operated this time in the Western Approaches off the British Isles, but in a period of seven weeks scored no successes. On completion she did not return to Lorient, but continued to Flensburg, arriving 14 October. Kuhnke assumed command of the 33rd U-boat Flotilla upon arriving at Flensburg. He relinquished command of U-853 back to Frömsdorf, who took the U-boat on her third and final patrol. Before departure U-853 was fitted with a Schnorchel, a retractable air intake and exhaust that allowed the ship to remain submerged while running her diesel engines. The Schnorchel reduced the need to spend dangerous periods on the surface recharging batteries.
Read more about this topic: German Submarine U-853