Atlantic Bow modified for underwater refuelling

[NZSnowman]

Here is my research for the modified Atlantic Bow for underwater refuelling.

I welcome any feedback or discussion about it.

Would like to ask the other forum members if they have time to look through their U-boat photographs collection and see if they have any pictures of this bow alteration.

http://www.mediafire.com/?ms0cu75b786royo (You will need version 8 or higher to view the PDF file)

[Nevermind4712]

Thanks for your awesome Work Snowman:)

Is it okay for you that i divide the PDF with other german modelers?.
There are some really hot about this Information:)

[NZSnowman]

Thanks for your awesome Work Snowman:)

Is it okay for you that i divide the PDF with other german modelers?.
There are some really hot about this Information:)

Thanks for the kinds words.

I have just uploaded a newer version of the PDF file as I found some spelling and grammar errors. (Sorry my spelling and grammar is real bad). This is only part of a larger PDF of all my research. I am current reworking all my Schnorchel research. Should have it finsh soon.

You are most welcome to forward it to other modellers!

[SnakeDoc]

Great work, Simon!

You have touched really interesting and almost unknown topic.

--
Regards
Maciek

[NZSnowman]

Great work, Simon!

You have touched really interesting and almost unknown topic.

--
Regards
Maciek

Thanks Maciek

I had noted a while ago that there was two different Atlantic Bow versions, but did not know why. When the other day I was reading about loss U-boats in the English Channel and the talked about one of the U-boat being modified for underwater refuelling, and it all started to come together

Also a small update on the PDF file, fixed more spelling & grammar, and added one more drawing.

[dougie47]

Hi Simon,

Fantastic work! I don't think I've heard anyone discuss this subject before and your article really does provide very good information. It has been speculated that there were two Atlantic bow versions, one wider than the other. Do you think they are as follows? -

Version 1 - Normal Atlantic bow
Version 2 - Wider Atlantic bow due to addition of underwater refuelling

Might this explain the two versions?

We would be happy to add your article to the AMP library (under Documents / U-boats), under your name of course.

Cheers,

Dougie

[TopherVIIC]

Good Stuff Simon! As usual, you have done a fine job!
Thanks!

[NZSnowman]

Hi All

Just a small update on this research. Jerry Mason from Uboatarchive.net http://uboatarchive.net/ has ckecked the KTB for U-460 on the 7 December, and are no record of the underwater refueling for this day So the date and/or U-boat numbers could be wrong.

Jerry, said he will translate the full KTB for U-460 in a few months, & I will check my notes again. So I will keep you posted of that we found.

[NZSnowman]

Hi Simon,

Fantastic work! I don't think I've heard anyone discuss this subject before and your article really does provide very good information. It has been speculated that there were two Atlantic bow versions, one wider than the other. Do you think they are as follows? -

Version 1 - Normal Atlantic bow
Version 2 - Wider Atlantic bow due to addition of underwater refuelling

Might this explain the two versions?

We would be happy to add your article to the AMP library (under Documents / U-boats), under your name of course.

Cheers,

Dougie

Hi Dougie

Thanks for the kind words.

My feeling is both Atlantic bows have the same measurements. I not seen any different that I can tell yet.

Dougie, thanks for the offer to add my article to the AMP library. I would like that  I have been updating my Schnorchel research also, and would like to combine most of my research into a single document. So, would is be Ok to do this, or would you prefer single research articles?

[dougie47]

Hi Simon,

Thanks for the reply, I'll send you an email.

Cheers,

Dougie

PS Happy New Year to everyone.

[NZSnowman]

 
I have just finish another small update for this article.

I have added additional information on the Telephone Cable, Fuel Hose, added detail of U-460 War Diary/War Log Book (KTB), corrected the Fuel Hose and fuel valve alignments and dimensions, and added a new drawing to illustrate arrangement for the fuel hose.

Happy viewing

http://www.mediafire.com/?ms0cu75b786royo
 

[TopherVIIC]

Simon -
Nice drawings and report, as always. I look forward to seeing the final piece!
Do you by any chance have any drawings (yours or other peoples) that show sectional slices of the Atlantic bow, looking from stem toward stern?
I believe I would like to put the Atlantic Bow on my cutaway but finding sectional drawings of what it looks like for each frame, from say frame 102 forward is proving difficult.
I am holding off doing more detailing in that area till I can gather resources, but if there are none, then I shall go with a standard VIIC.
Keep up the great work! I am impressed!
Cheers!
Christopher

[NZSnowman]

 I am sad to say that I have never seen any original German drawings or measurements for the Atlantic Bow.
My Atlantic Bow on U-1308 is base on the Type VIIC bow framing, the few photographs of the Atlantic Bow, and on that I think the German

[TopherVIIC]

I am sad to say that I have never seen any original German drawings or measurements for the Atlantic Bow.
My Atlantic Bow on U-1308 is base on the Type VIIC bow framing, the few photographs of the Atlantic Bow, and on that I think the German

[NZSnowman]

 I am 100% sure that were are plans for the Atlantic Bow but after the war ended they were either lose, or are not viewable on the internet for as. I believe more that they are loss. For example there are about 15,000 set of drawings (plans for the Type XXI) so you can safety say that were are about 10,000 set of drawings for the Type VIIC. I have only seen about 5 original German drawings.

I think the main reason why we are not seeing many original German drawings is that almost all were burn before the Russian arrive.