"Eunometic" wrote in message
om...

In theory, in practise the vast majority of type XXI boats
built were of such poor quality that they were unfit for
service and only one ever went on patrol.

This of course delayed entry into service untill the defectice
building was remediated. However they formed the backbone of not only
the post war German navy but were extensively used by others.

Some XXI's were for example a long time in use
by:

France: U 2518 ("Roland Morillot", decomm. 1967)
Great Britain: U 2502, 2506, 2511, 3017, 3514
USSR: U 2529, 3035, 3041, 3515
USA: U 2513, 3008


There's a difference between evaulation and being
the backbone.

The fact is none of the type XXI's in US or RN services
were operational for very long and certainly didnt
form the backbone of the submarine force. The
USN carried out the GUPPY conversions while the
RN built the O & P classes


The list of ships sunk by this type follows

Start of List
End of List

Not for lack of capabillity:


Not being able to put to sea is usually considered
a sign of a lack of capability

Keith