Longest career was Kaptl. Josef Steinadler. 1939 - 1944. I forget the U# but it was of the U-flak type conning tower and the boat was lost to air attack while crash diving to evade 4 bombers off of Cape Town South Africa some time in March of 1944. (GWX 100% realism)
Best career was about 6 months shorter and only perhaps 60K tons difference (GWX 100%)
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