Author Topic: VIIC/41 - Schematices drawing  (Read 512412 times)

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Offline Pepper-mint

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Re: VIIC/41 - Schematices drawing
« Reply #825 on: 24 Jan , 2011, 02:03 »
 :o :o :o

OK ?  ;D

Awesome work, so much devotion, passion, questions, RESULTS...

I'm one of your biggest Fans Snowman !

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Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #826 on: 26 Jan , 2011, 00:51 »
The drainage system for compensating tanks 2 & 3, and Forward Trim Tank


(source: http://uboatarchive.net/U-570Plate7.htm)

Red arrows are the drainage system for compensating tanks 2 & 3 and blue arrows are the drainage system for Forward Trim Tank. You may see that the drainage pipe for the Forward Trim Tank (blue arrows) goes through the compensating tank 2, this is because there no room to directly contact this pipe to the Forward Trim Tank as the high pressure air bottle is in the way.




Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #827 on: 26 Jan , 2011, 09:40 »
Hi

Accidentally I have found following photos:

















Found on:
http://traktoria.org/files/snorkel/


Maybe you'll find them interesting.

--
Regards
Maciek

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #828 on: 26 Jan , 2011, 11:19 »
Thanks Maciek!! I had seen the snorkel valve pictures before but not the full set. The pictures of the snorkel on the Type VII must be a very very early design. Does anyone recognize what U-boat number this is?


Here a close-up of one of the pictures. The lower platform looks very strange! I do not even recognize which Turm it is. Dougie or anyone, does anyone recognize it?

Offline dougie47

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Re: VIIC/41 - Schematices drawing
« Reply #829 on: 26 Jan , 2011, 14:43 »
Hi gents,

Great photos! Some of these photos are from "Die deutschen U-boote und ihre Werften" by E Roessler. They show U 235 in October 1943.

U 235 was very unusual in several respects. Firstly when it was commissioned in Dec 42 it had an original tower but with the late styl;e of deck (planked). A quite unusual combination!

By October 1943 it had a snorchel and a Turm II. This Turm II was a little different than normal - there has a curved edge to the tower that can be clearly seen in the last photo.

Cheers,

Dougie

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #830 on: 26 Jan , 2011, 20:33 »
Hi gents,

Great photos! Some of these photos are from "Die deutschen U-boote und ihre Werften" by E Roessler. They show U 235 in October 1943.

U 235 was very unusual in several respects. Firstly when it was commissioned in Dec 42 it had an original tower but with the late styl;e of deck (planked). A quite unusual combination!

By October 1943 it had a snorchel and a Turm II. This Turm II was a little different than normal - there has a curved edge to the tower that can be clearly seen in the last photo.

Cheers,

Dougie

Thanks Dougie. I had a good feeling that you would see this before.

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #831 on: 26 Jan , 2011, 21:07 »
The drainage system for Torpedo Tubes

Hi Maciek & All.

I have adding the drainage piping similar to U-534. I also decide to keep the two 3-way valves the same on both sides till we know for sure of there locations. I redrawn the drainage pipe that run under the Torpedo Tubes, I added a incline so the lines would now self drain.





Offline Rokket

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Re: VIIC/41 - Schematices drawing
« Reply #832 on: 28 Jan , 2011, 00:57 »
nice pix, cool to see the detail bits1
AMP - Accurate Model Parts - http://amp.rokket.biz

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #833 on: 28 Jan , 2011, 02:12 »
Hi Simon

Maciek, I found it!!! ;D ;D I will post pictures soon.

Here are my research results:

I think that HP Line for HP Bank No 4 (port air flasks) is as follow:



(I marked the filter and valve d



and then goes



and just before frame 69 goes to the deck.



somewhere here:




--
Regards
Maciek


Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #834 on: 28 Jan , 2011, 02:29 »
Next, I guess that HP Line for HP Bank No 5 (starboard air flasks) is as follow:







Unlike at port side, the line goes to the deck jest near the bulkhead.
And there is valve d missing.

--
Regards
Maciek

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #835 on: 28 Jan , 2011, 03:24 »
I think that hull valve a1 for HP Bank 6 is located here:



Then the lines go at both sides:

starboard:



and then to the Control Room, through the valve d



port:


(view from the stern)


(view from the bow)

The port line goes through the valve c2 to the mine ejection installation.



--
Regards
Maciek
« Last Edit: 28 Jan , 2011, 03:35 by SnakeDoc »

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #836 on: 28 Jan , 2011, 07:04 »
Low pressure air line for blowing torpedo tubes/torpedo compensating tanks:



On the photo below I marked connectio to the line from the Control Room (also marked on previous photo)
and connection to the starboard side, which is led near the frame.



And below - connection from port side



Unfortunately I do not have enough detailed photos of torpedo room aft bulkhead port side, so I can not figure
if there is a branch for pneumatic tools connection or branch line for blowing bow buoyancy tank.

--
Regards
Maciek

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #837 on: 28 Jan , 2011, 08:31 »
Pressure equalization line





Another view of the junction:



Line connection with valve of the tube II (port, top) and junction:



Line connection with valve of tube III (stb, bottom):




--
Regards
Maciek

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #838 on: 28 Jan , 2011, 12:36 »
Hi Maciek

Wonderful research! You have moved it forward.

High Pressure Air Bank 6

I think you are correct about this system. Hull valve a1 is located at the correct internal frame number compare to the high pressure bottle located outside the pressure hull. In addition, what little we can see of this valve, it does certainly look like a pressure hull valve.

Were you able to locate the pressure gage before valve c2?

I will update my drawing today ;D

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #839 on: 28 Jan , 2011, 13:11 »
Hi Maciek

You have moved is forward also

High Pressure Air Bank 4 & 5.

I believe you are correct about this system also. After posting my results the other day on the high pressure lines, I found an original German plan that illustrating the alignment of the high pressure air bottles of bank 4 & 5. As soon as I saw this plan, I knew that something was worry in my initial research :-[ :-[. It’s good that you also found this error in my research, as any research is only as good was it peer review.

One thing I can not understand is, why move all the air lines for bank 4 & 5  to the Port of the boat, when the high pressure air manifold is on the starboard side of the boat ??? :-\       

« Last Edit: 28 Jan , 2011, 13:13 by NZSnowman »