Akademik
U-656 - U-676
U-656
U-657
U-658
U-659
U-66
U-660
U-661
U-662
U-663
U-664
U-665
U-666
U-667
U-668
U-669
U-67
U-670
U-671
U-672
U-673
U-674
U-675
U-676