Technology and Operations  
This forum is for discussing technological & operational matters pertaining to U-boats. 

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8 years ago
Don Prince
Hi Marko, I contacted Jeff LaRue at the "Subcommittee" and he states that the person seems to have gone out of business. Nobody get any response from modelbrass for over a year. Sorry, I could be of no help... Regards, Don_
Forum: Modeling and schematics
8 years ago
Don Prince
FYI... You can order the Blu-ray DVD at Amazon.com. The price seems to move between $17.99 and $18.99. Regards, Don_
Forum: Movies and Films
8 years ago
Don Prince
Web stte... If you richt click the mouse on the "email" in the sentence . The following address is captured (see below). You can paste the address in Outlook, or what ever email application you are using. sales@modelbrass.com Regards, Don_
Forum: Modeling and schematics
8 years ago
Don Prince
P.S. When you get your drawings of the Type VIIC completed are you going to do a book with a set of your prints? I have seen some of your work and it's outstanding my friend. When your project is completed, I would like to get the book or at least a set of your prints. Regards, Don_
Forum: Technology and Operations
8 years ago
Don Prince
Hi Simon, Youy should have that information. The basic lay-out is in all the schematics diagrams that I have seen of the Type VII. The book by David Eastwood "Anatomy od a Ship; The Type VII U-Boat has good drawings of the Battery switch room 1 (aft) on page 77. Page 79-80 have drawings of Battery switch room 2 (they call it Battery cells of froward battery room. I haven't seen
Forum: Technology and Operations
8 years ago
Don Prince
Hi Rainer, Do you happen to have any documentation on the Type VIIC switchboard? The manual 381 does a fair job in describing the functionality of the switches on the switchboard, but there are no diagrams or schematics in the appendix. I guess they got lost, or the person I got the copy from didn't include them in my package. Regards, Don_
Forum: Technology and Operations
8 years ago
Don Prince
Hi John, Two years ago, I got the a copy of the training manual for the Type VIIc that was used after WWII broke out. I translated a couple of chapters and then decided that I was not progressing at a good rate. I contacted Captain Jerry Mason at the UboatArchive.net and he has a gentleman that has almost completed the project. The link to the U-Boat Type VIIC manual is as follows: R
Forum: Technology and Operations
9 years ago
Don Prince
This may help with the full pressure hull schemstic. The openings for the cook hatch and the Officer Quarters hatch are difficult, but not impossible, to spot. Regards, Don_
Forum: General Discussions
9 years ago
Don Prince
David Westwood's book Anatomy of a ship "The Type VII U-Boat" and most fully detailed pressure hull lay-outs. Regards, Don_
Forum: General Discussions
9 years ago
Don Prince
Hello Maciek, I must congratulate you on an excellent document on the U-boat torpedo tube functionality. I hope you don't mind, I printed it for a reference. Below the Photo 9, There is the description of a torpedo surface firing sequence. You state the piston is not used because the water pressure is not great enough to return the launching piston back to the breech door when the
Forum: Technology and Operations
9 years ago
Don Prince
Hello DMCH, There is a stern and forward torpedo hatch, a hatch in the Galley area, and a battery loading hatch in the Officer and Senior Rates' Quarters area... I hope this helps. Reagrds, Don_
Forum: General Discussions
9 years ago
Don Prince
Hi Petr, I built an OTW 1/32 Type VIIc R/C U-Boat (U-96) and I used three strands of wire from a computer SCSI disc cable. You need to remove the silver plated wire from the flat ribbon cable. The SCSI wire is twisted together and looks very real. In addition, over time the silver will tarnish to give it even a better look. If you can't wait for the natural tarnish process, then you ca
Forum: Modeling and schematics
9 years ago
Don Prince
Hi Von Hilde, I have provgided a link below of a PDF written by Dougie Martindale. He has done excellent work on many subjects with regards to U-Boats... Regards, Don_
Forum: Modeling and schematics
9 years ago
Don Prince
Hi Simon, The photo is of a Type VIIc... Regards, Don_
Forum: Modeling and schematics
9 years ago
Don Prince
Hi Matthew, I have a photo of the crawl space under a type VIIc which shows how the wooden deck was supported... I can look through my hard drive and send you plans of the type VIIc deck layout. What U-Boat are you planning to build? Send me an email and I will send you a copy of the photos. My email address is dprince004@sc
Forum: Modeling and schematics
9 years ago
Don Prince
According to Eberhard Rossler's book "THE U-BOAT: The evolution and technical history of German submarines" page 67... On 18 September 1915 Vulcan submitted a tender to build U-Boats U71-U80 and the building costs were calculated at approximately 2.75 million marks for each boat of the Type UE. Page 73... U-cruiser; project 46 building costs amounted to 8.7 million marks a
Forum: General Discussions
9 years ago
Don Prince
Go to the following web site... Chapter IV, page 23 - 25 has the most information I have seen on the net about the 8.8 CM deck gun. Regards, Don_
Forum: General Discussions
9 years ago
Don Prince
On the type VII U-boat; I don't believe so... Regards, Don
Forum: General Discussions
9 years ago
Don Prince
Hello All, The book "The Collector's Guide to Cloth Third Reich Military Headgear" has about everything you ever wanted to know about all caps, including the U-Boat commanders white cap. We were discussing the cap peak stiffener... Page 40 - "Also required by regulations was the Stütze - a support post (strip) - which was sewn into the visor cap directly behind t
Forum: General Discussions
9 years ago
Don Prince
This is a common conversion and this topic has been discussed in great detail on the Subcommittee web site/forum.... A kit may be obtained at the following web site: The vendors list... Regards, Don_
Forum: Modeling and schematics
9 years ago
Don Prince
Hi Terry, My cap is packed up and in storage because we are in the process of selling our home and moving. I believe the marking in the top of the cap is EREL, and I believe there is a smooth shinny white material liner (silk?). The removable top looks to be a white canvas material. See my posting on the question posted later... Regards, Don_
Forum: General Discussions
9 years ago
Don Prince
Hello again Ghostmooner (P), I plan on purchasing the following book from Amazon.com... German Headgear in World War II: Army/Luftwaffe/Kriegsmarine: A Photographic Study of German Hats and Helmets (Hardcover)... Schiffer Pubilshing is very good at providing the last word on German WWII technical details. I have purchased over a dozen of there books on German WWII tanks and they are exc
Forum: General Discussions
9 years ago
Don Prince
Hello Ghostmoore (P), I have searched the internet for two days and the best that I can find is that there was a piece of linen sown into the front peak area to provide the stiff peak to attach the insignia. Below are two examples: However, there were many different cap makers and several shops that made special ordered caps. So I can not rule out your metal clip, but it does no
Forum: General Discussions
9 years ago
Don Prince
Hello Ghostmooner, I purchased a Leutnant zur See cap from Soldat and it comes with the scalloped trim on the visor. I did not notice any vertical stiffener in the front peak area and the white top is removable just like the one listed on the web site below (item 091S01): I assume this cap is an original and it sold for a very stiff price ($6,500)! I don't know enough about the ca
Forum: General Discussions
9 years ago
Don Prince
Hello John, You are asking many questions about a very complicated hobby... There are many different types of ballast systems used to control dive characteristics. My best advice is to go to the web site: www.subcommittee.com Then start doing some research in the message board. The subject matter sections should answer all of your questions. The Subcommittee publishes a quarterly m
Forum: Modeling and schematics
9 years ago
Don Prince
I found a good photo of the bridge rudder steering switch on the Uboatarchive web site.... Regards, Don_
Forum: Technology and Operations
9 years ago
Don Prince
Hello Looma32, They were called "Net Cutters" and was a hold over from WWI U-boats. They were not very successful and ordered removed from WWII U-boats. Regards, Don_
Forum: General Discussions
9 years ago
Don Prince
Hello SnakeDoc, Thanks for your follow-up... I did go back to my Control Room and Tower drawings in Richard Lakowski's Book "Deutsche U-Boote GEHEIM 1935 - 1945" and found that item 166 on page 69 is the Rudder Control Switch in the Control Room for the Type VII, and item 161 on page 70 is the Rudder Control Switch in the tower. However, nothing is indicated for the bridge.
Forum: Technology and Operations
9 years ago
Don Prince
Hello Comet61, Steering the Type VII U-boat was acomplished by manipulating a switch device located on the forward bulkhead in the control room. This switch was similar to the two switch units in the control room to control the stern and bow dive plains. There was a manual steering wheel located in the stern torpedo room in case the electrical control failed. I hope this information helps
Forum: Technology and Operations
9 years ago
Don Prince
Hi Simon, I believe you are looking at two different versions of the Type VII U-boat. Your first drawing (Top) is of a Uboottyp VII C (1944) General plan, and your second drawing (Lower) is of a Uboottyp VII B. It looks like they did move things around just a little. These prints are available in Eberhard Rossler's book Geschichte des deutschen U-Bootbaus, Band 1, published by Bernhard
Forum: Technology and Operations
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