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21

Hello Mr. Tore,




Are you and the wife back from your farm and in the big city yet?  Here in hot southern Atlanta Georgia; If the weather forecast even suggest that there will be a snow dusting, then all the schools are closed. People make a mad rush to all the grocery stores and buy all the milk and bread they can find. I guess the fear of starvation makes people do crazy things.  I'm originally from northern West Virginia where I had to walk to school in 2 - 3 feet of snow, they never closed the schools because of the winter weather.  I assume it's the same way in Norway; you just tough it out!...


Regards,
Don_
22
Hello Mr. Tore and Simon,


I now know the FBT 2 and FBT 4 gate valves never had hand-wheels because there is no space below the wooden deck.  I think it was possible for the FBT 2 residual gate valves to have hand-wheels, but most likely they were removed to keep the change-over process as uncomplicated as possible.


I have attached one of Simon's drawings and a photo where it looks like there is a hole in the wooden deck to provide access to the gate valve towards the center of the deck.  What do you all think?


Regards,
Don_
23
AMP NEWS / Type II U-Boat Modifications & Vent Patterns article
« Last post by dougie47 on 15 Oct , 2017, 15:40 »
Hello folks,

I have uploaded my latest article Type II U-Boat Modifications & Vent Patterns. This can be downloaded from -

http://amp.rokket.biz/lib_uboats.shtml

This one was started a number of years ago when we were researching the IIBs for a possible set for the 144th ICM IIB kit. We never proceeded with our set but the research involved was kept and used for this article. I also used the research for our 72-01 set for the Special Navy IIA kit in this article too. Originally I was going to leave it on the IIAs and IIBs but recently I studied the IICs and IIDs so that it covers all sub-variants.

Cheers,

Dougie
24
Don, as seen in http://models.rokket.biz/index.php?topic=921.msg20817#msg20817 if they are the hatches for FBT 2 gate valves they would have the worng frame number.

I will try to post pictures of FBT 4 hatches tomorrow.

As for the earlier Type VIIC's, if you look hard enough you will see them on most boats. The only thing I have noted is that on the some late war Type VIIC/41 they sometime used a wooden hatch.

Early Type VII's with hatch.
25
Hi Simon and Mr. Tore,


U-826 was commissioned on 11 May 1944 and probably one of the last Type VII C's  built.  It looks like the RFO /Water Ballast gate valves can be open/shut without opening any metal doors on the deck.


How about the earlier Type VII C's...  I have attached a plan for U-552 which was commissioned on 4 December 1940.  I have marked where I believe the gate valves are accessed for FBT 2, and I have also marked what I believe to be the access doors for the FBT 4 gate valves.


See attached drawing,
Regards,
Don_
26

Here are the real hatches on U-826  :)
27




You can see above that a handle slotted into the hex reset on top of the cover. The hatch cover is angled because there is not room under the decking for the gate valve.

Do sure what the handle look like, sorry  :'(
28
Hello Mr. Tore,


I was wondering if you had any photos or drawings showing the gate valves on the common air venting trunk for FBT 2 and FBT 4? Was there enough room below the wooden deck and the fairly small metal deck door to have an attached hand wheel to open/shut the gate valves. or was the hand wheel just removed?


See attached photo...


I can see where there would be space for  the FBT 2 residual gate valve hand wheels could be present...


Regards,
Don_

Below you are see the two hatches for the gate valves.

This images has been resized. Click to view original image.

29
Hello Mr. Tore,


I was wondering if you had any photos or drawings showing the gate valves on the common air venting trunk for FBT 2 and FBT 4? Was there enough room below the wooden deck and the fairly small metal deck door to have an attached hand wheel to open/shut the gate valves. or was the hand wheel just removed?


See attached photo...


I can see where there would be space for  the FBT 2 residual gate valve hand wheels could be present...


Regards,
Don_

Hi Don

The gate valves for FBT 2 and FBT 4, never had a hand wheel, this was an old mistake on my 2D drawing that Tore and I noted.

Also the hatches you have arrow are not the hatch cover for gate valves. The hatches you are talking about are the next ones forwards.
30
Hello Mr. Tore,


I was wondering if you had any photos or drawings showing the gate valves on the common air venting trunk for FBT 2 and FBT 4? Was there enough room below the wooden deck and the fairly small metal deck door to have an attached hand wheel to open/shut the gate valves. or was the hand wheel just removed?


See attached photo...


I can see where there would be space for  the FBT 2 residual gate valve hand wheels could be present...


Regards,
Don_
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