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Ocean
going boat (based on the Turkish "Gür") which had been constructed by
German U-boat development bureau at Cadiz.
Only two were built and both were almost uncontrollable - even in calm seas.
The crews of U 25 and U 26 had to be extremely careful and alert!
When making crach dives, the I A had the habit of going unstable, wobbling
sideways. And it had to be carefully levelled off to make sure it would stay at required
depth. Another dangerous problem was to stay at periscope depth. The type I A had severe
trouble with keeping bow or stern from breaking surface!
Even running surfaced meant trouble as the design of the conning tower allowed
large quantities of water to wash over.Both
type I A boats were banished to use in U-boat school (if the trainees would learn to
control a I A they would easily learn to manage other types of U-boats).
Later on, during the war, also these boats was put into
active war duty - no matter their bad reputation.
2 were built: U 25 and U 26.
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|
| Description: |
Ocean going /
Conventional |
| First launched: |
1936 |
| Complement, Off / Men |
4 / 39 |
| Displacement surf: |
862 t |
| Displacement subm: |
1200 t |
| Length: |
72,4 m |
| Beam, max: |
6,2 m |
| Depth: |
4,3 m |
| Max speed surfaced: |
17,8 kt |
| Max speed submerged: |
+8,0 kt |
| Radius surfaced: |
3300 sm at 17 kt
6700 sm at 12 kt |
| Radius submerged: |
90 sm at 4 kt |
| Max diving depth: |
200 m |
| Diving time,
stationary: |
-60 sec (to come to 10
m) |
| Diving time, alarm
moving: |
30 sec |
| Oil fuel carried: |
96 t |
| Torpedo tubes, bow /
stern: |
4 / 2 |
| Nr of torpedoes /
mines: |
14 / 42 |
| Guns fitted: |
1. 20 mm AA with 2000
rds
1. 105 mm Deck gun with 150 rds |
| |
|
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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