I have plenty on these vessels, but this forum cannot facilitate sending you the many attachments via email here. Send me an email so I can send them to your address directly. So far all models I have ever seen of the Oscar II are inaccurate. Their are some glaring research flaws. Perhaps my info shared will illuminate. I do not claim to have everything, but I am astonished how the same info shared by all seems to have gone by the wayside in being expressed accurately in model form. The Typhoon's yawn me, except their general size. But the Oscar II's....wow...a fleet of underwater 'Bismarcks'!