Greetings, guten abbend, and Hallo!
I have just found this forum and have been reading avidly, and now have a few questions to ask of you learned folk...
I am quite fond of the Type VII series of WWII U Boats. I am working on a combined project involving my own drawings, and a build, which I will post later.
Question: Are the red circled "fins" or vanes that seem to circle the delivery end of the torpedo tubes (illustrated in the famous Köhl drawings below...)
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[www.kabutographics.com]
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the same fins I am looking at in these linked photos of the U-260 wreck:

[www.iol.ie]

[www.iol.ie]
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I have posted this question to a few other U-Boat forums but have had not luck thus far.
Does anyone here know if these are the same things, or what their purpose is?
Thanks and Cheers
TopherVIIC