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In 1938 the VII B was launched. A completely
modified and improved version of the VII A.
At that time the new design was
considered the best to be made and German authorities thought it to
become THE boat of the Unterseebootwaffe..
24 were built: U 45 - U 55, U 73 - U
76, U 83 - 87 and
U 99 - U 102..
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Description: |
Sea/Ocean going / Conventional |
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First launched: |
1938 |
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Complement, Off / Men |
Totally 44 to 56 |
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Displacement surf: |
753 t |
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Displacement subm: |
1040 t |
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Length: |
66,5 m |
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Beam, max: |
6,2 m |
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Depth: |
4,7 m |
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Max speed surfaced: |
+17,0 kt |
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Max speed submerged: |
8,0 kt |
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Radius surfaced: |
3850 sm at 17 kt
8700 sm at 10 kt |
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Radius submerged: |
90 sm at 4 kt |
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Max diving depth: |
200 m |
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Diving time, stationary: |
50 sec (to come to 10 m) |
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Diving time, alarm moving: |
30 sec |
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Oil fuel carried: |
108 t |
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Torpedo tubes, bow / stern: |
4 / 1 |
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Nr of torpedoes / mines: |
14 / 39 |
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Guns fitted: |
1. 20 mm AA with 4380 rds
1. 88 mm deck gun with 250 rds
This type of weaponry later modified:
Most deck guns were removed during or after 1943 and AA
strengthened. |
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Off = Officers, surf = surfaced, subm
= submerged,
max = maximum, Nr = number, t = tons, m = metres, mm =
millimetres,
kt = knots, sm = sea miles, sec = seconds, AA = Anti
Aircraft, rds = rounds
+ = more than, - = less than, x = No/none, ? = unknown
Please note that some figures are to be considered
approximate.
Main sourse for The Boats Section is the excellent book
"U-boats
under the Swastika" by J.P. Mallman Showell, ISBN: 0
7110 0379 3. |
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