Author Topic: VIIC/41 - Schematices drawing  (Read 512193 times)

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Offline Rokket

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Re: VIIC/41 - Schematices drawing
« Reply #765 on: 02 Jan , 2011, 01:22 »
awesome gyro! Sorry Simon, no pix
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Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #766 on: 03 Jan , 2011, 02:03 »
Evidence of evolution of the U-boat.

I started to redraw the bow section of my U-1308. I have been using the Fritz K

Offline Greif

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Re: VIIC/41 - Schematices drawing
« Reply #767 on: 04 Jan , 2011, 23:54 »
Simon, I wish I had your drawing skills.  Beautiful as always!

Ernest

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #768 on: 05 Jan , 2011, 15:24 »
Hi Simon

I am afraid there going to be lots more questions for you, as I have just started to drawing the piping to the tubes  ;D ;)

Go ahead, I'm still learning al lot - especially while researching the things, you asked about ;)

Your post made me wondering a lot.
Below there are things, I have been able to research for last few days.

Part One

Quote from: NZSnowman
In Drawing 1 "Torpedo tube flooding and drainage installation" where is drain valve (i)? Is it the valve next (right) of the piston in Photo 3 "Aft torpedo tube on U-995"?

Do you mean the valve marked with red arrow?

(source: http://www.ubootwaffe.pl/component/option,com_flexicontent/Itemid,76/cid,66/id,337/view,items)

I think that this is valve marked as (f) (look at the part related to aft tube) on the drawing:

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

With blue arrow I have marked flood line, with green - vent/blow line and yellow - port part of torpedo compensating tank 1.


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

Here is how I imagine myself this arrangement (sorry for hand drawing).


And one more view:

(source: U-995 DVD http://www.uboataces.com/u995.shtml)

red arrow - flood line
yellow arrow - branch to hull valve and cooling pump
green arrow - vent/blow line
blue arrow - valve (f)

I think that pipe part between red and blue arrows is blanked place after flow meter.


Part two

Quote from: NZSnowman
So this makes me believe this valve is on the starboard size of the aft tube, somewhere behind the open hatch door of Photo 3. Aft torpedo tube on U-995

Do you mean the valve marked with red arrow on the following photo?


I think that it can not be the drain valve because of two reasons:

If you look on the following photos you will see the the drain valve handle of the bottom tube in the same location
as for top tubes.


(source: http://www.ubootwaffe.pl/galeria/okrety/u-995/)


(courtesy of Britta Fischotter)

Also, drain valve located in place you pointed would make difficult to implement interlock between drain valve and opening doors gear.


I think that this is valve marked as (v) o the diagram


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

This is valve used to select which torpedo compensating tank 2 or 3 is to be used to flood/drain the tubes.


--
Regards
Maciek

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #769 on: 05 Jan , 2011, 16:22 »
After another while of wondering I think that arrangement for the aft tube is as follows:
(sorry for even worse hand drawing)


(source: U-995 DVD http://www.uboataces.com/u995.shtml)


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



--
Regards
Maciek

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #770 on: 05 Jan , 2011, 16:55 »
Hi Maciek

Thanks for your time into this!

About part two

I also come to the same outcome as you about this valve only a few hours ago ;D I just could not get it to fix the plans, so I started looking in other places. Then I also notice the four drain valve handle. I will start drawing this up today and post within a few days.

From the picture below I have located the four opening in the bow casting for the drainage pipe (in Orange) however, they look a little small for the draining the tube. What do you think?

► Have you seen any measurement for the length of the torpedo tube within U-boat? I got a measurement of 3020 mm does this look right? It matches very near to the total length of 7552 mm.


From U-Boote Crews by J Delize


Here valve (v), I will join it up to the tank 2 or 3 later.

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #771 on: 06 Jan , 2011, 21:30 »
Hi Maciek

Here valve (i) including the interlocker. I was able to located two name plates but unable to make out that are on them :( The valve also a small bleed line (left) I try to follow it but was only able to follow it for about 40 cm it was heading to the Control panel (Ausgleicharmatur) in Photo 5.



Here the basic layout some far (will need to add the piping and things to get the right scale and postions). The blue pipe go back to tank 2. I could not location the orange drainage pipe on U-995 (maybe is has been removed :-\)

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #772 on: 06 Jan , 2011, 23:29 »
I wonder how this got on a German U-boat  ;D ;)


Norwegian  ;D ;D - Look like they miss this name plate.

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #773 on: 07 Jan , 2011, 02:41 »
Hi Simon

Have you seen any measurement for the length of the torpedo tube within U-boat? I got a measurement of 3020 mm does this look right? It matches very near to the total length of 7552 mm.

Unfortunately I have never met exact measurement of the part of the tube inside and outside the boat.
I suppose, that for that moment you have to estimate it from the drawings.

--
Regards
Maciek

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #774 on: 07 Jan , 2011, 02:50 »
From the picture below I have located the four opening in the bow casting for the drainage pipe (in Orange) however, they look a little small for the draining the tube. What do you think?

I think that it has to be opening for the drain pipe - in my opinion this is the only possibilty.

You can compare the size of the pipe in US Navy tubes - it isn't much different:
http://maritime.org/fleetsub/tubes/plate1.htm

Although I must admit that there is one hole too many for each tube - I'm trying to figure it out.

--
Regards
Maciek

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #775 on: 07 Jan , 2011, 03:02 »
Meantime I figure out one more part of installation:


(source: http://www.ubootwaffe.pl/galeria/okrety/u-995/)

blue arrow - hull valve (a)

compare valve handle with:

(source: http://www.uboatarchive.net)

yellow arrow - valve (h)
green arrow - connection to equalizing pressure
red arrow - connection to compensating tanks


(source: http://www.uboatarchive.net)

--
Regards
Maciek

Offline SnakeDoc

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Re: VIIC/41 - Schematices drawing
« Reply #776 on: 07 Jan , 2011, 04:22 »
Here valve (i) including the interlocker. I was able to located two name plates but unable to make out that are on them :( The valve also a small bleed line (left) I try to follow it but was only able to follow it for about 40 cm it was heading to the Control panel (Ausgleicharmatur) in Photo 5.


Great work Simon!
Here is another view of the drain valve:

(source: http://www.ubootwaffe.pl/galeria/okrety/u-995/)

I cannot figure out at this moment what this small bleed line is for.

Quote from: NZSnowman

Here the basic layout some far (will need to add the piping and things to get the right scale and postions). The blue pipe go back to tank 2. I could not location the orange drainage pipe on U-995 (maybe is has been removed :-\)

I think, that drainage line for the top tubes are hard to see because they are between the tubes and hull, as well you cannot locate the lines for bottom, because they are under the deck.



This is forwardo torpedo room of U-164 - type IXC boat, but arrangement seems the same.

(source: Vom Original zum Modell, Uboottyp IX C)

blue arrow - opening for the shaft of the muzzle door opening gear
green arrow - compressed air pipe for the mine bolt actuator
orange arrow - drainage pipe
yellow arrow - vent/blow pipe
red arrow - compressed air line for ejecting mines
white arrow - compressed air line for ejecting mines

I have doubts about two last openings - according to drawing below, there should be only one...
I'm gonna investigate it thorough...


(source: http://www.uboatarchive.net)

--
Regards
Maciek
« Last Edit: 07 Jan , 2011, 16:25 by SnakeDoc »

Offline dougie47

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Re: VIIC/41 - Schematices drawing
« Reply #777 on: 07 Jan , 2011, 09:17 »
Hi Simon,

A few weeks back you requested a photo showing how the aerial met with the aft deck. This should help -

http://cgi.ebay.com/ORIG-PHOTO-U-BOOT-U-BOAT-U-212-CREWMEN-W-FLAG-DECK-/110630725459?pt=LH_DefaultDomain_0&hash=item19c21ae753

Cheers,

Dougie

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #778 on: 07 Jan , 2011, 11:38 »
Hi Simon,

A few weeks back you requested a photo showing how the aerial met with the aft deck. This should help -

http://cgi.ebay.com/ORIG-PHOTO-U-BOOT-U-BOAT-U-212-CREWMEN-W-FLAG-DECK-/110630725459?pt=LH_DefaultDomain_0&hash=item19c21ae753

Cheers,

Dougie

Thanks Dougie!!! The picture is wonderful. It nice and clear!

Dougie, when you look at the small section between the deck and wire block, does it look like solid metal or metal wire?

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #779 on: 07 Jan , 2011, 12:17 »
Meantime I figure out one more part of installation:


(source: http://www.ubootwaffe.pl/galeria/okrety/u-995/)

blue arrow - hull valve (a)

compare valve handle with:

(source: http://www.uboatarchive.net)

yellow arrow - valve (h)
green arrow - connection to equalizing pressure
red arrow - connection to compensating tanks


(source: http://www.uboatarchive.net)

--
Regards
Maciek

Great work!!!

To my understanding the inlet is only on the port side of the boat, is that right Maciek ???

I have some original German measurement for this inlet for the pressure hull. I will measure this out on the outside of the boat and see how it matches on the inside.

Maciek, have you seen the information that Dani from http://www.u-historia.com/ got from Joachim Scherneck-Czech, Archives assistant in Military historical training centre of the naval college M