Author Topic: VIIC/41 - Schematices drawing  (Read 512150 times)

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Offline Rokket

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Re: VIIC/41 - Schematices drawing
« Reply #195 on: 16 May , 2009, 23:43 »
Good question on the voice pipe, what a terrible hull penetration! Even if you relied on outside pressure keeping a cap shut, scary [insert 3 stooges "nnnnnaaaaaaah" scary noise here]
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Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #196 on: 17 May , 2009, 23:29 »


What is A for ???

Is B wood or metal ???

Thanks, Simon.

Offline rabapla

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Re: VIIC/41 - Schematices drawing
« Reply #197 on: 18 May , 2009, 03:59 »
B should be wood......
Sincerely

Ralf

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #198 on: 18 May , 2009, 18:51 »
Just want to confirm that TDC was only located in the Conning tower ???

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #199 on: 20 May , 2009, 13:25 »
I have always thought that there were two TDC on a U-Boat, one in the Conning tower and one in the Control Room. However, now I believe there was only one in the Conning tower. Can anyone confirm this for me?


Attack periscope & TDC within the Conning tower :)

Offline Rokket

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Re: VIIC/41 - Schematices drawing
« Reply #200 on: 21 May , 2009, 05:46 »
Only with general info from various reading...the TDC was a pretty amazing thing at the time, a compact computer! There was only ONE on any boat, any navy. They were a Big Deal. The USN had one that could update all info automatically. The Kriegsmarine's was a bit limited. They could input a problem and get a firing solution, but when things changed they had to re-input new info.

Periscopes were a Big Deal, too, but more of a Medium Deal - hi-tech optics and construction, but nowhere near as tricky and complex as a mechanical computer. The USN TDCs were big, about the size of a small fridge (not bar fridge, just a bit smaller than a double door). We're talking big stuff. VERY impressive though, from what I've read there were no major problems with them (as opposed to US radar and anyone's hydraulics at critical times).
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Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #201 on: 27 May , 2009, 15:33 »
Here the other part of the TDC, the two switch boxes in the Control room.


Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #202 on: 29 May , 2009, 03:46 »
Update:


The atteck periscope (middle); the FuMB-9 Wanze (left) and the FuMB-35 Athos (right) (both passive radar detection) with pictures of U-249.

Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #203 on: 03 Jun , 2009, 03:05 »
  Drawing: The full search periscope housing  :)




There is a cable (red arrow) that runs from the bottom of the search periscope into the search periscope housing. Does anyone know that happen to this cable in the periscope housing ???

Offline Bad Karma

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Re: VIIC/41 - Schematices drawing
« Reply #204 on: 03 Jun , 2009, 08:28 »
Well what I think is that this ''retraction cable'' has the same lenght(or shorter not longer) as the ''search periscoop housing'',this housing goes
right into the main diving tank.So i think this cable goes straight down in the housing,I think it will not bend in the housing.

More thoughts on this is always welcom ::) ::) ::) ::) ::) ::) ::) ::) ::) ::) ::) ::)

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Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #205 on: 03 Jun , 2009, 14:21 »
Do you think there was a small motor at the bottom of the housing to help the search periscope retract ???

Offline Rokket

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Re: VIIC/41 - Schematices drawing
« Reply #206 on: 04 Jun , 2009, 03:16 »
Yes. I say this from physics and USN boats (had motors). A long steel tube filled with bits of this and that, there's no way to quickly and safely continually move it manually up and down.
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Offline Bad Karma

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Re: VIIC/41 - Schematices drawing
« Reply #207 on: 04 Jun , 2009, 10:52 »
I have looked at the drawings of David Westwood,is this than a motor for the attack scope ::) ::) ::) ::) ::) ::)(number 16)



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Offline NZSnowman

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Re: VIIC/41 - Schematices drawing
« Reply #208 on: 04 Jun , 2009, 13:33 »
Bad Karma, you are right about the motor, I knew about this motor. You can just make out the cables warping around periscope in the picture (from the other post) and then going up the periscope. In the picture (below) you can see the two cable on the side of the wall running down the to the motor. The red arrow is the up/down control arm for the periscope. I thought this motor may only rise the periscope and there was a small motor at the bottom of the housing to help lower the  periscope, but maybe there enough weight in the periscope that it would lower itself ???


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Re: VIIC/41 - Schematices drawing
« Reply #209 on: 06 Jun , 2009, 05:48 »
Wow - throughly researched! I like the fact that you have colors included as well. Thanks for sharing. - Harvey