Quote:
Originally Posted by Targor Avelany
Thank you, this will help for sure.
I might see how close the hulls between IX a/b/c/d uboats are.
If they are pretty close, I will be able to use blueprints from c or d to build a b.
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Here is how Rossler describes the Type IXDs compared to early Type IXs:
"Type IXD1 would be given a large installation of six 1500hp motor torpedo-boat diesels for high surface speed (20.8 knots); Type IXD2 would receive the normal Type IX propulsion unit, but with a diesel-electric addition for increased range. The pressure hull had the same strength and same diameter as the Type IX. Apart from the diesel compartment, the fittings corresponded approximately to those of the Type IX, but the living quarters and stowage space were considerably enlarged to meet the requirement for greater endurance. The outer hull, however, was rather wider and higher, and now enclosed the whole pressure hull.
At the bow, the S-curve of the Type IX was avoided by using longer torpedo tube flaps, and this lessened the formation of spray at the bow. The stern was now drawn-out in a very slim profile, and the torpedo tubes now were more effective at the otherwise unencumbered stern." (p. 150)