Thanks to Maomatic for doing such a superb drawing of the Panzerschiff design line.
There was a lot of design work undertaken between the real life Deutschland Class Panzerschiff and the Scharnhorst Class Battleships. In the Germanic States realm that I have and the DP Kriegsmarine, the Panzerschiff feature 6 x 13.8" in two triple turrets and the Scharnhorst type may go to 9 x 13.8" (or even 8x16") depending on what I do with the French answer to the Panzerschiff. It will probably get worse before it gets better, and as I dream up more and more different types of vessels that could fit into these realms. Anyway to the Roons.
With the first of the Deutschland class at sea and two more building, the design for ships four to six was to be enlarged to make them more capable, with better staying power. One of the original designs was just an enlarged Admiral Scheer which while better still had many of the same faults.
![[ img ]](https://www.dropbox.com/s/14s4tcdn5w2lw5l/CA%2520Panzerschiff%2520D%2520-%2520Design%25203b.png?dl=1)
Length CWL: 207,00m
Length 209,05m
Beam: 25m
Draft: 7,7m
Displacement: 18.000 - 19.000 tons
Propulsion: Turbines ca. 70,000 shp - 2 shafts
Speed: ca 26 knots
Armament:
6 x 28cm (2x3)
8 x 15cm (4x2)
10 x 8,8cm (5x2)
8 x 3,7cm (4x2)
8 x 53cm torpedo tubes (2x4)
The next design in the series enlarged the dimensions and displacement again and altered the layout to fit another triple turret aft. The doctrine for these ships would be to flee from any ship or group of ships that could inflict serious damage to the ship. Having six guns aft would increase their chances of escape. Other improvements included the raising of the freeboard by a meter, the fitting of aircraft handling facilities and an even more powerful propulsion system.
![[ img ]](https://www.dropbox.com/s/c40ogasvy1kzf4i/CB_1938_Roon_Initial_design.png?dl=1)
Displacement: 20,000 tons standard, 28,400 tons full load
Dimensions: 707.5 x 90 x 27 feet (215.7 x 27.4 x 8.2m)
Machinery: 2 shaft, MAN diesels, 100,000bhp
Speed: 30 knots
Endurance: 18,000 nmi at 15 knots
Armour: 6.7" belt, 3.4" deck, 8.2"/4.1"/3.4" turrets
Armament:
9 x 11" (3x3)
8 x 5.9" (4x2)
8 x 88mm (4x2)
8 x 37mm (4x2)
10 x 20mm (10x1)
Torpedoes: 8 x 21" (2x4)
Aircraft: 2
Crew: 1,400
What eventually got to sea in late 1938 added even more improvements including a new 'Atlantic' bow, redesigned bridge structure to mount the new AA directors.
![[ img ]](https://www.dropbox.com/s/kfzjjdosatxt3wk/CB_1938_Roon_as_completed.png?dl=1)
Displacement: 21,000 tons standard, 30,100 tons full load
Dimensions: 726 x 90 x 27 feet (221.3 x 27.4 x 8.2m)
Machinery: 2 shaft, MAN diesels, 100,000bhp
Speed: 30 knots
Endurance: 18,000 nmi at 15 knots
Armour: 6.7" belt, 3.4" deck, 8.2"/4.1"/3.4" turrets
Armament:
9 x 11" (3x3)
8 x 5.9" (4x2)
8 x 88mm (4x2)
8 x 37mm (4x2)
12 x 20mm (12x1)
Torpedoes: 8 x 21" (2x4)
Aircraft: 2
Crew: 1,400
Last in this series of drawings is the DP Kriegsmarine version where the 5.9" and 88mm are replaced with 5"/128mm dual purpose weapons.
![[ img ]](https://www.dropbox.com/s/yov999zgdfqbec0/CB_1938_Roon_DP_Version.png?dl=1)
Displacement: 21,000 tons standard, 30,100 tons full load
Dimensions: 726 x 90 x 27 feet (221.3 x 27.4 x 8.2m)
Machinery: 2 shaft, MAN diesels, 100,000bhp
Speed: 30 knots
Endurance: 18,000 nmi at 15 knots
Armour: 6.7" belt, 3.4" deck, 8.2"/4.1"/3.4" turrets
Armament:
9 x 11" (3x3)
16 x 5.1" (8x2)
10 x 37mm (5x2)
12 x 20mm (12x1)
Torpedoes: 8 x 21" (2x4)
Aircraft: 2
Crew: 1,400