Tores mailbox VIIC and VIIC/41 operation and technical details

[Raymic1]

Thanks Don, Tore et all.
We are very much looking forward to its release.
Cheers

[42rocker]

Wow, how nice. Thanks Don. And all who helped. 
 
Later Tim

[bianco64squalo]

Thanks Don,
I think that Skizzenbuch will be a fantastic gift for all U-Boat modelers and in general for all U-Boat enthusiasts....
Respect

[Don Prince]

Hello Mr. Tore and All,


I have uploaded a new version of Skizzenbuch 11 x 17 - M + Ie.PDF... I have made a few changes to pages 456 through 461 to make the active and passive detection systems less confusing (I hope)! I sure do miss Maciek's help on this subject...


I should not have a problem with the copyright because they state minor changes/corrections may be made to the released document/book.


Regards,
Don_


 

[NZSnowman]

Hi Tore

While on U-995, I was able to find the original Lubricating Oil cooling under the flooring. In fact, it look like most of the original piping is still under the new floor 

[tore]

Hi Simon.
Nice images and I guess the cooler is not far from your final drawing. The gatevalve shown on the lower image is possibly one of the three gatevalves in the coolingwatercrossover pipe. Wish I could have join you on the visit.
Tore

[Don Prince]

Hi Simon,


Great photos... Would you agree with my labeling on the photos?


Regards,
Don_

[NZSnowman]

[NZSnowman]

2nd photo
pipe in foreground is P14/16
I believe the pipe is P14/11, and not the Lubricating Oil filter.

[NZSnowman]

The two control arms are P14/20

[Don Prince]

Hi Simon,


Circled in yellow - lube oil knife type filter?


Don_

[NZSnowman]

Hi Simon,


Circled in yellow - lube oil knife type filter?


Don_

It does look like a  lube oil knife type filter. But it seen that one pipe is going forward and the other is going aft We need to check with Tore.

[tore]

Don
I guess the assumed knifefilter is one of  three gatevalves in the crossover coolingwaterpipe. The crossoverpipe has alltogether 5 gatevalves of which the three amidship have wheelstem extension to the floorplates. The lubeoil filters are situated closer to the engines and as you know were fitted on the later VIICs only, as a substitute for the lubeoil sentrifuges which were removed due to space and weight requirement. Below two images showing the coolingwatersystem and the construction of the gatevalve. On the plate 13 you`ll see the icons of a "Schieber", german for gatevalve in the coolingwater crossoverpipe.
Tore

[Don Prince]

Hello Mr. Tore,


Thanks for clarifying about the cooling water gate valves posted earlier... Simon got some great photos below the deck of U-995.  I wonder how he did it! Mark also got some excellent interior and exterior photos and answered some questions I had about the remaining RADAR equipment...


Regards,
Don_

[tore]

Don and others interested.


A few years back Maciek introduced me to an US author Larry Simpson who was looking for a technical consultant on German Uboats like VIICs and IXCs. I volunteered on a non paid basis, but after Maciek passed  away I became the only technical consultant to the writer. Larry Simpson wrote a fiction book of a German WW2 submarine deploying a weather station in Alaska. We decided to choose a IXC /40type and used the U 807, a boat having keel laid down in 1943 but never commissioned. We worked on the book for about two years and in these days it is published on Amazon. The title is Cold Refuge by Larry Simpson. Larry let the Chief engineer explain the technical details related to the uboat and as he was`t fully conversant with the law of Archimedes he, with my consent, introduced me as the chief of the U 807 explaining the details. If you have a Kindle you might get a copy at Amazon for a very reasonable price. I guess the book is interesting as the story of the Uboat weather stations are not widely known.
Tore