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Appendix 9

U-boat Deployment Summary
January 1943 - May 1944

 

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May
Total U-boats at sea 148 169 179 156 179 119 127 81 90 124 102 98 107 94 98 85 63
Operational U-boats 87 122 119 90 121 62 71 40 45 86 68 59 61 58 56 33 31
Operated on North Atlantic Convoys 64 74 71 68 81 0 0 0 26 53 29 27 37 36 23 0 0
Operated on convoys on Gibraltar Lane 6 28 25 0 7 18 16 0 0 8 38 24 8 0 0 0 0
U-boats in distant areas 7 10 12 14 18 19 37 24 3 6 11 6 3 4 8 8 9
N. American Coast 0 0 0 3 7 5 5 2 1 3 2 1 1 2 4 3 3
Caribbean 2 3 5 3 0 1 6 4 0 0 2 3 1 1 2 2 0
S. American Coast 4 2 2 1 2 6 13 7 2 2 4 1 0 0 0 1 1
W. African Coast 1 0 0 3 4 7 13 11 0 1 3 1 1 1 2 2 5
Capetown 0 5 5 4 5 0 0 0 0 0 0 0 0 0 0 0 0
Refuelers 3 5 4 4 6 3 1 0 1 2 2 1 0 0 1 1 0
U-boats refueled 23 39 31 32 54 33 6 0 9 6 7 2 0 0 2 0 0

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Transcribed and formatted for HTML by Rick Pitz, HyperWar Foundation