here's summat that might be a side issue to the thread in some ways but relevant to gameplay especailly regarding reduced tonnage capability and damage etc
and i've not heard it mentioned before..
Quote:
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A further indication of the great accuracy of depth charge attacks was the frequent damage that the U-Boats now sustained to the upper deck containers for torpedoes, and this affected their diving capacity. In a type IXC boat for example, if four or six of these containers were suddenly flooded, the sinking of the boat could only be prevented by the immediate blowing of the diving tanks. On 30th April (1943) we had to order the removal of the upper deck containers on ALL operational boats. The resulting reduction of torpedoe-carrying capacity was not serious, for the constant air danger had allready discouraged boats from reloading at sea-- a process that required a considerable time on the surface.
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this is taken from the Ministry of Defense's originally classified work
"The U-boat War in the Atlantic" by Gunter Hessler (Donitz' son in law)
having been given access to all available classified and unclassified German intelligence reports for the project.
and i thought i was being unrealistic by removing the external torps from the subs ...
on the length of time spent attacking an u-boat during/after a convoy attack it would be usefull to have a convoy commanders point of view?
im pretty sure there's info regarding this in the Gunter Hessler work but boy is it hard to find what you want in this book-- he does mention that most subs expected to be damaged either on the surface by aircraft or escorts or whilst diving to avoid an escort and still shallow-only after the introduction of hedgehogs did commanders become surprised and alarmed by the amount of damage they were recieving at depth--even in 1943-
the type nines being more liable to damage than the sevens-- even to the extent of being withdrawn from full convoy attacks-
it allso mentions the use of a mine by the escorts which the Germans did not have any knowledge of untill after the war-- the Mark XXIV mine..doesn't go into detail on this point sadly except that i think it was called the "mouse-trap"
anyhuw offers possibilities for gameplay modifications