Type VIIC/41 Drawings

[NZSnowman]

I have started this post as I wanted one central post that people can come to and found an drawing that may aid with there modelling. I often update my drawing, to correct errors that I found or after I getting additional information. Any new drawings or updates will be posted in the very first post (this one)  

Happy viewing, Simon.

My research document http://www.mediafire.com/?zai7dk61rb4acg0



Casting and Pressure Hull

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1. Stern section, (top) casting only (bottom) with equipment; 2. Bow section with casting and equipment; 3. Internal framing of the Wintergarten (Turm 5); 4. Pressure hull with piping; 5. Vent valve for Saddle Tank; Hull opening (left), Inner hatch cover (middle) & Outer hatch cover (right); 6. Access Hatch.


Equipment




Sensors


1. Cross-section of a GHG hydrophone; 2. A late war Schorchel head, with and without Tarnmatte.

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Fig. 1. FuMO-61 Hohentwiel U radar. B without without the netting.

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Fig. 2. FuMB-9 Wanze and FuMB-35 Athos.

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Fig. 3. Direction Finder Antenna Loop.

* = Newest updates.

[Pepper-mint]

Thanks Simon !!! You are a Gentleman... 

[NZSnowman]

Updated.

[Greif]

Thank you Simon!  These will come in very handy when the time comes for the next uboot build.

Ernest

[NZSnowman]

Update

Added a corrected Search Periscope drawing to the Equipment selection.

► Corrected periscope length.
► Corrected periscope head measurements now, base on true measurements.
► Add a completely new Control Room periscope. My previous drawing was base on U-995 periscope, I am now convinced the periscope in U-995 is not its original.

[Rokket]

Highly likely you are right about non orig scope, 995 was in another navy and then not restored very well.

[NZSnowman]

Highly likely you are right about non orig scope, 995 was in another navy and then not restored very well.

I found some pictures of the original periscope in U 995: Das Boot von Laboe by Eckard Wetzel and they are not the same.

[NZSnowman]

Updated Mid section of pressure hull and piping drawing.

► Added the Main Air Inlet Trunk line.
► Added the Air Inlet Trunk lines.

[NZSnowman]

Update to Access Hatch and Main Air Inlet Trunk line drawing.

► Original Access Hatch drawing was base mostly from a few pictures from U-995 and drawings of the United States Navy Gato hatch. New drawing now base on a German Access Hatch Plan
► I was able to used several genuine German Access Hatch measurements to correct my drawing, however, is highlighted that the Main Air Inlet Trunk line was misalign new drawing displays correct alignment

[NZSnowman]

Make many small changes and added a link to my research document.

► I found some genuine German bridge measurements so was able to put the Sky periscope in it correct position. My earlier estimation was out by 20 mm or 0.47 mm at 1:43 scale
► I added the complete piping system for the late war schnorchel.
► I have corrected the neck of schnorchel and layout of the Tarnmatte for the last war schnorchel.
► I have increase the accurately of the opening in the pressure hull for the drive shaft for the radar aerial, as I was able to found one genuine measurement for it

[Pat]

Great idea Simon!  Thanks very much.

[Pat]

Wink, I think you're correct about U-995 and it not being restored very well from the time in the Finnish Navy, which might have occassioned many changes, particularly in instrumentation.

From what I've read, the German government has not helped with the restoration but has left it up to private groups.  If anything, the German government has hindered the project and would prefer that the U-boat be gone and forgotten, along with anything that might remind them of that particular part of history. 

[NZSnowman]

Pat, I was thinking this morning about starting a list of changes/absent/etc

[NZSnowman]

► Add a completely new Control Room periscope. My previous drawing was base on U-995 periscope, I am now convinced the periscope in U-995 is not its original.

Highly likely you are right about non orig scope, 995 was in another navy and then not restored very well.

I just workout that the periscope of U-995 is a Type XXIII periscope

[Pat]

Simon, it's easy to see how the list can grow.

The Finns had the boat for many years and during that time, there were many advances in technology and new ideas to make wartime expediencies safer as well as old parts wearing out.  So I'd expect many, many changes.

I've started a list of the changes I've made or planned to the Revell kit for my U-711 build.  So far I'm up to 150 changes. 

And even that is combining a lot of them together.  For instance, I just put down "opening deck hatches" as one change, but in actual fact, there are about a dozen or more deck hatches that I'm putting hinges on to be able to open up and see the interior.  So is that one change or 15 changes?

And since each hatch is scratch built, and each hinge, and the framework under the hatch, and the deck planking on top of the hatch, are those all changes too or just included in a catch phrase of "opening deck hatches"?