Kriegsmarine - KM Ship Plans/Discussion

[alexi]

This is a new one. Planned with 4-20.3cm triples?

Dave

No, presumably similar to O-class.

 

[_Sarcasticat_]

And there is evidence for a 30.000ton variant eg KW30:

https://www.secretprojects.co.uk/threads/kriegsmarine-central-km-ship-plans-discussion.37568/page-7#post-547404

This is a new one. Planned with 4-20.3cm triples?

Dave

That would certainly be cool, but I feel the earlier P-class variants would better befit such an armament.

 

[_Sarcasticat_]

Interesting...must be the turrets for the follow-on P-class that don't have the extras from the rebuilds. Excellent work @alexi.

 

[_Sarcasticat_]

Neat, but sadly am not in America.

Is there any particular documents from NARA that you were able to find and wanted?
If so, please list them.

 

[alexi]

Neat, but sadly am not in America.

Should have wording better, it mean i never live there.

 

[MrMemerMan]

Any blueprints or drawings of the 1937 destroyer projects?

 

[_Sarcasticat_]

Any blueprints or drawings of the 1937 destroyer projects?

I have some line drawings, but most are already known. I've been trying to get my hands on Type 1937 designs for a while.

 

[MrMemerMan]

Any blueprints or drawings of the 1937 destroyer projects?

I have some line drawings, but most are already known. I've been trying to get my hands on Type 1937 designs for a while.

Which designs do you have? I only have 37-J and 37-I. And one dubbed "Atlantic Destroyer 1937 K".

 

[_Sarcasticat_]

Any blueprints or drawings of the 1937 destroyer projects?

I have some line drawings, but most are already known. I've been trying to get my hands on Type 1937 designs for a while.

Which designs do you have? I only have 37-J and 37-I. And one dubbed "Atlantic Destroyer 1937 K".

I don't think I've seen This K version before. Can you post it and tell me where you found it?

 

[MrMemerMan]

Atlantik-Zerstörer als Projekt 1937

Atlantik-Zerstörer als Projekt 1937

www.forum-marinearchiv.de

 

[_Sarcasticat_]

Atlantik-Zerstörer als Projekt 1937

Atlantik-Zerstörer als Projekt 1937

www.forum-marinearchiv.de

It is a well-made design, however, it is fictional.

I tried to create a project with the following specifications:

It is interesting to note that the author of this post states that the 1937 series of designs never considered the 15cm whereas other sources are completely adamant about it. I have not seen the actual plans for these, but it is possible other authors (such as Groner) mistook the 1937 ships as having 15cm due to the twin turret (As a twin MUST equal a 15cm, right? No - see Type 1938B).
On the other hand, perhaps the plans that the author has are of earlier variants, or only found variants of the plan with 12.8cm guns. More likely this is the case.

 

[MrMemerMan]

Ah I must have over looked that one part.

 

[_Sarcasticat_]

Ah I must have over looked that one part.

No, no, I'm glad you found it. I've spiraled into a bunch of other very good threads.

 

[MrMemerMan]

Ah I must have over looked that one part.

No, no, I'm glad you found it. I've spiraled into a bunch of other very good threads.

That design may be based on one of the various '37 designs. If I am correct, only 2 if them had 2x2 /1x4 torpedo launchers. I only have the designs for J and I.

 

[_Sarcasticat_]

Ah I must have over looked that one part.

No, no, I'm glad you found it. I've spiraled into a bunch of other very good threads.

That design may be based on one of the various '37 designs. If I am correct, only 2 if them had 2x2 /1x4 torpedo launchers. I only have the designs for J and I.

The Type 1937-K design is a mixture of the Type 1936A, C, and Type 1937-J featuring bits and pieces from all.

These are the best I've got.


Nothing more or less better than yourself.
If these sketches are recreated correctly, then you can obviously tell there are 15cm singles here in I and 128s in J.
Though it only says 128s in the specifics section.

I, II, III/IV, J.
I shouldn't have to mention that J doesn't have "6-12.7cm" either.

 

[_Sarcasticat_]

Whitley perhaps describes best the development of the Type 1937 - at least more so than any other source I've read, so I think it would be preferable to trust the Second Edition of his German Destroyers of World War Two.

 

[MrMemerMan]

Ah I must have over looked that one part.

No, no, I'm glad you found it. I've spiraled into a bunch of other very good threads.

That design may be based on one of the various '37 designs. If I am correct, only 2 if them had 2x2 /1x4 torpedo launchers. I only have the designs for J and I.

The Type 1937-K design is a mixture of the Type 1936A, C, and Type 1937-J featuring bits and pieces from all.

These are the best I've got.
View attachment 690178
View attachment 690179
Nothing more or less better than yourself.
If these sketches are recreated correctly, then you can obviously tell there are 15cm singles here in I and 128s in J.
Though it only says 128s in the specifics section.
View attachment 690180
I, II, III/IV, J.
I shouldn't have to mention that J doesn't have "6-12.7cm" either.

Hopefully the others surface pretty soon.

 

[MrMemerMan]

Are U-boats allowed on this thread?

 

[_Sarcasticat_]

Are U-boats allowed on this thread?

I don't see why not. They're a major part of the KM.

 

[MrMemerMan]

I was wondering if anyone has any info on any U-boat projects that aren't very well known about.

 

[Tzoli]

Here is a wiki article about all the Type designation submarine erm types:

List of U-boat types - Wikipedia

en.wikipedia.org

Uncompleted U-boat projects - Wikipedia

en.wikipedia.org

I know there is a more dedicated site there as well describing more about them:
Yes, here it is though the subpage is now dead and only available through the wayback machine:

This page contains details on the German U-Boat Type III, Type IV, Type V, Type VI, Type VIII, Type XI, Type XII, Type XIII, XV, XVI, VB60, V80, U-179, XVII.

 

[MrMemerMan]

I wonder if that Type XXIX "stealth" Submarine was a real design or is pure fiction. I've seen some info about it, but haven't really seen anything that says it was fictional. I've mostly seen it described as a concept that never went past the drawing board.

H I Sutton - Covert Shores

 

[Arjen]

I take anything on submarines written by H I Sutton very seriously indeed.
Earlier thread on the Type XXIX, started by SPF-member covert_shores (H I Sutton):

https://www.secretprojects.co.uk/threads/unbuilt-type-xxix-u-boat.28945/#post-305367

 

[Arjen]

More on the Type XXIX in Die deutschen Kriegsschiffe 1815-1945 - Band 3 - U-Boote, Hilfskreuzer, Minenschiffe, Netzleger und Sperrbrecher by Erich Gröner, Bernard & Graefe 1985, p.137-p.139.
Real project, none built.

 

[Tzoli]

There seems to be a missing sub design: Type XXVIII eg Type 28. Do we know something about it?

 

[Arjen]

From Gröner:

 

[Tzoli]

Small turbine driven design?

 

[Arjen]

That is what Gröner wrote. It is all I have

 

[Tzoli]

I'm asking because my German is quite limited.

 

[Arjen]

Fair enough.
1 'indirect' Walter-turbine and 1 silent electric motor.
The 'indirect' Walter turbine used a closed circuit water/steam system to drive the turbine, using hydrogenperoxide only as oxygen source for fuel combustion. The aim was a more efficient power plant, but proved too difficult to develop before war's end. Plus, a heavier, more complex power plant.

 

[Tzoli]

Was the Walter turbine drive a viable option for submarines or it was a dead end? Did any navy continued it's development post-war?

 

[Arjen]

H I Sutton might know.

 

[_Sarcasticat_]

Small turbine driven design?

Likely one of the hydrogen peroxide (Ingolin-Antreib) turbine designs, I think, or a Kreislauf design of some sort.

 

[_Sarcasticat_]

Quick update.

Spahkreuzer 38 folder has been updated, couple of new plans, mostly organizational stuff.

SP38 plan wanters, your time has come.

 

[lukasgrul]

Does anybody have blueprints of german torpedo launchers found on Tirpitz? I was searching for quite some time but I couldn´t find anything useful.

 

[_Sarcasticat_]

Does anybody have blueprints of german torpedo launchers found on Tirpitz? I was searching for quite some time but I couldn´t find anything useful.

Tirpitz uses the same open quad as most other German ships. I'll see if I can find a diagram for you.

 

[alexi]

What was the triple 203mm turret designed for (are there any projects it would have been used on)?

The '31 version or '38? @ceccherini is correct that Graf Zeppelin have several preliminaries due to German observation on 8" guns on Akagi and Lexington, so they came up with 8 inch gun armed "carrier cruiser" type (fitted into either casemate, twin or triple turrets).
I was thinking 1931 design is simply a concept based on 15cm/60 triple turret, they have some similarities.

 

[Tzoli]

Or some unknown D-class preliminary, an early heavy cruiser or for some export design.

 

[lukasgrul]

Were there any other projects of battleships besides H-class mentioned in plan z?

 

[lukasgrul]

Are there any more blueprints of H-41 battleship? I could find only this one.