Tores mailbox VIIC and VIIC/41 operation and technical details

[Don Prince]

Hello Mr. Tore,


While reviewing the latter part of Skizzenbuch, I find that there are several instanced where the starting lever is called a Starting handle and vise-versa.  However, I believe both identifiers are correct...


If I place the following comment in Skizzenbuck, then do you agree that this will eliminate any confusion?


"Note:  (ANLASSHEBEL = Starting Lever) - The lever has an attached grip/handle (ANLASSGRIFF = Starting Handle) and the handle must be squeezed in order to change the lever position; both are considered to be the same integral component. This same logic applies to all the levers on the diesel engine operating panel."


Regards,
Don_

[tore]

Don.
Yes, the handle is the last component of a linkagesystem consisting of levers and rods. You "grab" ( almost the same word in German "griff") the handle to move the linkagesystem.
Tore   

[Don Prince]

Hello Mr. Tore,


I uploaded what I believe will be the last version of Skizzenbuch into Dropbox...  I added a 6 page walk through of U-995  to the prologue to provide the reader with a physical reference point...


Regards,
Don_

[tore]

Don.
Your 6 pages tour of the U-995 is a good idea. What do you mean by NCO room?
Tore

[Don Prince]

Hello Mr Tore,


NCO = Non Commissioned Officer

[tore]

Don.
Shortcut on my side. The reason is that we normally used the name Petty Officers mess (PO mess) for this compartment and CPO mess (Chief Petty Officers mess) for the compartment between the wardroom and forward torpedo room. Your nomination should be OK.
Tore

[David83]

Great new Book .

Hi Guys i want to point in here there is a great new book on the market about the Persicopes on german submarines at Company Carl Zeiss .
There is everything inside how it works ,technikal specs ,Drawings how the mechanic to rise and lowering the periscope works ,assembly of it ,factory pictures and many more .
you can get it via amazon or ebay .

maybe a good addition for the technical guys here

wbr David

[SG]

Great catch David, thank you for sharing it!

[falo]

Hi Tore,

I have a question concerning the two spare torpedo containers of the typseven/41 stored under the wooden deck (bow and stern) and the layout of the planked or slotted deck.

Please take a look at the attached picture: I have read that the late VIIC/41 had no spare torpedoes because of the continuous Royal Air Force threat it was a dangerous thus needless purpose. So when the spare containers (blue layers on the drawing) were removed, I suppose that the layout of the wooden deck was also fitted and the cutouts (red layers) vanished too?

The reason behind this questions is that the (well known) underlying drawings from Koehl/Niestle ("Vom Original zum Modell) are showing a late VIIC/41 with slotted deck and spare torpedo containers. The refueling bow is IMO a indication that this is a "late" VIIC/41, so the deck should be planked and the spare torpedoes removed. It is no reflection on Koehl and Niestle work – I suppose they drew a general plan and had to consider a wide range of different u boat modifications – it is just for my understanding.


Thanks in advance
falo

[tore]

Hi Falo.
U-995 was launched July 1943 and not fitted with torpedo containers in the casing but with wooden planking deck. The GA drawing from Koehl/Niestle is dated 1948 and shows a slotted deck, no torpedocontainers and four storage containers having hatches on deck. The containers as well as the wooden planking hatches were easy to remove and install. Below are some photos I took back in 1953 of the U 995 were you can see the wooden deckplanking. As far as I can see there are no wooden hatches for the torpedo containers, it might be two hatches used for storage of mooring equipment and a rubber dinghy as far as I can remember. I guess the wooden deck and hatches varied particularly towards the end of the war. In spite of the GA drawing of Koehl/Nietsle, the U-995 during the war did not have any storage containers in the casing, 2 containers were later installed by the Norwegian navy. Other Norwegian VII Cs had three and four containers.
Tore

[falo]

Hi Tore,


thank you very much for the information.


Regards
falo

[Don Prince]

Hello Mr. Tore,


I made some changes in the U-Boat dive angle drawings.  The location of the aft hydroplane should be located very close to the rudders.  Do you approve of my changes?


Regards,
Don_


Original...

[Don Prince]

Changes...

[Don Prince]

Changes....

[Don Prince]

Changes...