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Atlantik bomber kreuzer

_Del_

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The time frame is coherent with operation "Seelöwe", hence the possibility of supporting amphibious operations. Commerce raiding is also a possibility.
Whether designed to the purpose or not, I imagine being able to generate medium bomber flights at sea would add an interesting dynamic to the Battle of the North Atlantic. Even unarmed, the bombers would be a welcome extension to the Condor flights -- telegraphing convoy locations to wolfpacks, and surface groups' locations to the other commerce raiders allowing Kriegsmarine to better avoid pitched battles vs capital ships.
 

Parasitkaffee

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Hello Together Here are ALL informations I Found about the Atlantikbomber Kreuzer and Großer Atlantikbomber Kreuzer

Thats All what Exist in The Marinearchiv Freiburg .
Good job, still I have one question. I thought I saw a third design dating 1940 from a convoy cruiser on the site of the Bundesarchiv, but I can't find it back. Are you familiar with such a design? Im not sure while I accidentally push a button and it disappeared, Ron


I don't have these yet

My man how get me these is in Holly days
 

Wurger

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Roodbaard1958! wrote:
Its classified in the topic Sonstige Schwere Kreuzer and described as a convoy destroyer dated 1940
Could this convoy destroyer be the "Handelszerstörer" depicted and described by Siegfried Breyer?
 

Roodbaard1958!

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Roodbaard1958! wrote:
Its classified in the topic Sonstige Schwere Kreuzer and described as a convoy destroyer dated 1940
Could this convoy destroyer be the "Handelszerstörer" depicted and described by Siegfried Breyer?
Possible,which publication of Siegfried Breyer you refer to, he wrote quite a lot, thx Ron
 

Wurger

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Roodbaard1958! wrote:
Its classified in the topic Sonstige Schwere Kreuzer and described as a convoy destroyer dated 1940
Could this convoy destroyer be the "Handelszerstörer" depicted and described by Siegfried Breyer?
Possible,which publication of Siegfried Breyer you refer to, he wrote quite a lot, thx Ron
"Schlachtschiffe und Schlachtkreuzer 1921-1997".
 

Roodbaard1958!

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Erich Gröner mentions in his German warships 1815-1945 vol. 1 the P-class armoured ships but also M-class light cruisers. In addition to the latter class he mentioned a 8.000 Atlantic cruiser designed 1935 and after solely for the cruiser war. The M-class was a failure with the M and N laid down in 1938 but in 1939 stopped, so there is a possibility that this design was an improved M-class. I really hope somebody is able to photograph this design and publish in on this website
 

Parasitkaffee

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The problem for me is is the money.


I can't go to the Archive in Freiburg and take pictures because I live about 600km away from it.


So I have to call a "Recherchedienstleister" ho did that for me and that cost money.

(for my set of H class Battleship plans for example I paid about 350 euro)
 

Roodbaard1958!

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For me the distance is comparable. That was a small fortune for the plans! That is not enjoyable anymore. In the Netherlands you can order digitized documents against a reasonable price, sometimes even for nothing, Drawings are always problem due to the format. Although there are exceptions. On the website of the National Archive at The Hague you can download drawings of Dutch navy ships while the former town archive of Vlissingen offered the possibility to download drawings of navy and merchant ships for free. In the near future the Zeeuws Archief will take over the latter drawings on her website
 

Wurger

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Try living more than 1600 kms away, and expecting to pay a lot since taking your own photos isn`t, to my knowledge, allowed. They have to learn a lot from, for instance, some british archives.
 

Parasitkaffee

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Try living more than 1600 kms away, and expecting to pay a lot since taking your own photos isn`t, to my knowledge, allowed. They have to learn a lot from, for instance, some british archives.

Taking your own pictures is free but you have to know whare the plans you are looking for are and you have to pre register yourself 3 days before your visit
 

Kugelblitz

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"Something else I find absolutely bonkers is the shape of the armour belt which seems to taper at each end. "

Maybe meant to depict a turtle armour deck? Though not depicted in end on views.
 

airman

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i don't know if Atlantik Bomber Kreuzer are referred to projects of hybrid - cruisers known as Grossflugzeugkreuzer
 

Tzoli

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These are more like CAV or aviation cruisers similar to the Japanese Tone and rebuilt Mogami. They were launched by catapults (as thedrawign seems to indicate whatever it was possible to launch such large aircrafts from shipboard catapults...) not by their own power from a flight deck
 

Kingpin6100

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So, the good news is that when I ran this through SpringSharp, the program itself did not gain sentience to beat me up.

Just putting in the size of the ship gave me 17.8k tons normal displacement-to knock it down to 7200t normal I had to give it a magical hull coefficient of .222.

The bad news: shockingly, this design wouldn't work. Not on that displacement. Unless you want no crew space, a metacentric height of zero, and the minor issue of having 189% of your ship below the water at all times.

German Engineering at its finest!

Grosser Atlantik Bomber Krueuzer, Germany Cruiser laid down 1940

Displacement:
6,516 t light; 6,946 t standard; 7,200 t normal; 7,403 t full load

Dimensions: Length overall / water x beam x draught
656.18 ft / 600.39 ft x 72.18 ft x 26.25 ft (normal load)
200.00 m / 183.00 m x 22.00 m x 8.00 m

Armament:
12 - 7.99" / 203 mm guns (9 mounts), 255.24lbs / 115.78kg shells, 1940 Model
Breech loading guns in Coles/Ericsson turrets
on centreline ends, majority forward
Main guns limited to end-on fire
8 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1940 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
8 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
8 - 0.79" / 20.0 mm guns (2x4 guns), 0.24lbs / 0.11kg shells, 1940 Model
Machine guns in deck mounts with hoists
on side, evenly spread
Weight of broadside 3,360 lbs / 1,524 kg
Shells per gun, main battery: 150
6 - 21.0" / 533 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Hydraulic drive, 4 shafts, 120,985 shp / 90,255 Kw = 38.00 kts
Range 5,500nm at 9.50 kts
Bunker at max displacement = 457 tons

Complement:
390 - 508

Cost:
£6.202 million / $24.809 million

Distribution of weights at normal displacement:
Armament: 420 tons, 5.8 %
Machinery: 3,235 tons, 44.9 %
Hull, fittings & equipment: 2,861 tons, 39.7 %
Fuel, ammunition & stores: 684 tons, 9.5 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
-68 lbs / -31 Kg = -0.3 x 8.0 " / 203 mm shells or NaN torpedoes
Stability (Unstable if below 1.00): 0.52
Metacentric height 0.1 ft / 0.0 m
Roll period: 84.2 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 1.04
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.222
Length to Beam Ratio: 8.32 : 1
'Natural speed' for length: 24.50 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 64.20 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.97 ft / 8.22 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (50 %): 18.37 ft / 5.60 m (17.16 ft / 5.23 m aft of break)
- Quarterdeck (15 %): 17.16 ft / 5.23 m
- Stern: 17.16 ft / 5.23 m
- Average freeboard: 18.81 ft / 5.73 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 189.5 %
- Above water (accommodation/working, high = better): -213.0 %
Waterplane Area: -26,751 Square feet or -2,485 Square metres
Displacement factor (Displacement / loading): 73 %
Structure weight / hull surface area: 199 lbs/sq ft or 971 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.32
- Longitudinal: 1.56
- Overall: 1.34
Caution: Poor stability - excessive risk of capsizing
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
 

alexi

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Jesus christ, Atlantik Bomber Kreuzer is like someone in KM department got seriously drunk by putting a motor boat, make it bigger slap with guns, catapult on blueprints and call it a day.

Typical German Nazi engineering, lol.
 
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