On 22 September 1941 Merten torpedoed his first ship the British Steamer sailing in convoy SL-87 and on the 6 November 1942 he sunk his last ship the British Steamer, bringing his total to 27 ships of 170,151 gross tons.
September 1941 Merten torpedoed his first ship the British Steamer sailing in convoy SL-87 and on the 6 November 1942. This was on 22. He sunk his last ship the British Steamer. He was bringing his total to 27 ships of 170,151 gross tons.