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TYPE VII / Re: Trumpeter 1/48 U-552
« Last post by dougie47 on Today at 05:03 PM »
Hi David,

Thanks for posting the images. The top one is a Type XB, I think it may be U 118 on the 6th September 1941.

The bottom one I think is a VIIC, this time U 302 in April 1942. There are two vertical seams as you say, both of which are not full lines but dashed. The horizontal seams are full lines. 

The IX U 534 has several dashed line seams on her rudders so the dashed lines were used on IXs, VIICs, XBs and perhaps other types too.

Cheers,

Dougie
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TYPE VII / Re: Aft torpedo tube muzzle door
« Last post by bianco64squalo on Today at 02:53 PM »
Thanks David, beautiful drawing....
It will be very useful for my purpose...

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TYPE VII / Re: Trumpeter 1/48 U-552
« Last post by bianco64squalo on Today at 02:51 PM »
Thanks David, fantastic photos....and useful too....
I’ll take advantage of your kind help some other times.....
Cheers
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TYPE VII / Re: Aft torpedo tube muzzle door
« Last post by David83 on Today at 02:32 PM »
Dear Bianco

Thats all what i have, with this drawing you get at least a small idear how it was done .
i guess there are no original pictures of this mechanic around since i didnt found a single one in any book or in the internet .

br David
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TYPE VII / Re: Trumpeter 1/48 U-552
« Last post by David83 on Today at 02:26 PM »
Dear Bianco

Thats what i have about the rudder .
there are two vertical weld seams i think one of the weld seams are to fix the rudder shaft into the rudder because its direct in the center of the shaft  .

First picture are from 1941 the secound are from 1942

br David
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Maybe this helps too i found this picture in an Book its of building U238
Exhaust outlet can be seeing very good it has another flange in the ground part .

br David
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TYPE VII / Re: Trumpeter 1/48 U-552
« Last post by dougie47 on Today at 05:31 AM »
Hi Filippo,

Here is the rudder from a schematic which should help -



If you resize and compare with the Trumpeter rudder you should see if cutting or filling is required.

I've pointed blue arrows at the corners on the rear edge. Note how they are both rounded. The corners on the early VIIB do look a bit more rounded than the other photos of VIICs for some reason, though I am not sure why this should be the case. It might be better not to round the edges too much?

Sorry I can't help with your other question.

Cheers,

Dougie
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TYPE VII / Aft torpedo tube muzzle door
« Last post by bianco64squalo on 15 Dec , 2017, 07:54 »
Hi everybody,
I post a drawing I found in internet, that illustrates the parts of a Type VII C aft torpedo muzzle door; I noticed that no one modeler reproduced in his model  the external doors ( highlighted in yellow in drawing ), but the internal door ( highlighetd in orange in drawing ), that I think was visible only during the torpedo's firing...
In the above-mentioned drawing, the only thing I don't understand well is the shape of the connection bracket between the external and the internal door: can someone explain in more understandable way?
I post two photos, one ( Dougie's ) of the external door, and one ( an U-45 model ) of the internal one...
Thanks in advance.
Filippo
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TYPE VII / Re: Trumpeter 1/48 U-552
« Last post by bianco64squalo on 14 Dec , 2017, 23:40 »
Thanks Dougie,
exhaustive explanation, as usual....
Now I have to see if I have to fill the groove on the aft edge of the rudders, or cut off the protrusion, according to the exact dimension of the rudders: do you have, by chance, a drawing with the dimension of rudders ? If not don't worry, I'll try to obtain in some way...
Cheers
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TYPE VII / Re: Trumpeter 1/48 U-552
« Last post by dougie47 on 14 Dec , 2017, 15:34 »
Hi Filippo,

Yeah, the aft edge looks really weird. From your photos it looks like there is a deep groove all along the trailing edge. Is there a big groove or am I seeing things? There should not be anything like this at the aft end of the rudder; the only thing on the real boats was a vertical weld seam.

The other issue is that there is only one horizontal weld seam. It is really hard to see the seams on real boats but the few I've seen have three horizontal weld seams (as well as two vertical seams). All three can easily be seen on the inside of the starboard rudder on the top photo I posted in my previous email from last night.

Here is another shot, although it is a very early VIIB -



I've pointed the blue arrows to show the three horizontal weld seams.

Trumpeter could have been influenced by the outside of the port rudder on U 995, which looks like it has only one horizontal weld seam. I think it is because the two others have worn away over the years. I think all three horizontal seams can be seen on the inside of both rudders in some photos of U 995 (presumably these have not worn or been sandblasted away).

If anyone has any period shots showing any weld seams please post.

Cheers,

Dougie
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