Radetzky Class Preliminary Project VI

The final known design of the 1904 series of Radetzky preliminary projects. Possibly to increase redundancy of the secondary armament in case of battle damage, on this project all 19cm Guns were housed in single mounts, 4 in single turrets and the rest in casemates, rather then 8 in twin turrets and 4 in casemates as in the previous design.

After the meeting of 1904. September 19 where the previous 6 projects where discussed a new meeting was held in 1905. February 10 which shows hat there was an almost half year of designing pause was occurred.
On the new meeting Vice-Admiral Franz Freiherr von Minutillo, Rear-Admiral Juliusz Franciszek von Ripper, Captain Julius Beck von Wellstaedt, Admiral Josef Mauler von Elisenau, Rear-Admiral Guido Ritter von Couarde, Captain Lucian Eugenio Ziegler de Lintz-Pozza, head of the MTK and Chief Engineer Friedrich Jedlička were participated.
On this meeting Popper was not present as the subject was not about the design of the warships but their armament. The first topic was about the usage of either the German Krupp Sliding Breech lock or the British Vickers-Maxim Breech lock eg the Welin breech block. There were pros and contrast for either lock but after their discussion the team remained that Krupp Sliding Breach was to be used for the new weapons.
Next topic was the calibre of the main Guns to use either the 28cm (283mm) L/45 calibre Guns or the new 30,5cm L/40 calibre ones.
Among who participated the risen issues were the larger shell wight and the necessary handling equipment the lock system to be used for such large calibre (At that time the largest Sliding Breech Guns were the German 28cm SK L/40 aboard the Braunschweig class battleships), the uncertainty of the new 30,5cm calibre and the positive ability to further develop the larger calibre.
It was also noted that ballistically there were not much difference between the 28cm and 30,5cm Guns despite there were like 100kg difference between their shell weight (345kg for the 28cm and 445 for 30,5cm one)
The committee agreed that it would be wise to use the larger 30,5cm calibre for the new ships and only return to the 28cm one of there were problems developing the new gun. (This discussion was later mirrored in 1908/09 as to to choose between the L/45 and 50 calibre 30,5cm Guns for the Viribus Unitis class when in development) In the end only two, Ziegler and Jedlička supported the 28cm armament, three supported the 28cm armament if there were issues with the development of the 30,5cm and the rest wholeheartedly supported the 30,5cm calibre even if that means changing the Breech Lock technology to the Vickers-Maxims / Welin one.

The design had the following characteristics:
Dimensions: Unknown except the width so I've used the data of the Radetzkys: 137,5m (wl) 138,8m (oa) x 24,0m x 8,1m
Displacement: 12.950tons (standard)
Armour: 40mm Deck, 230mm Belt
Engines: 18.000shp Yarrow Vertical Triple Expansion Engines, 2 Shafts
Speed: 37km/h (20knots)
Range: 7.400km at 18,5km/h (4.000nm at 10knots)
Armaments:
2x2 30,5cm/40 Skoda K05 Cannons
12x1 19cm/42 Skoda K03 Guns
10x1 7cm/50 Skoda K10 Guns
3x1 45cm Underwater Torpedo tubes

The only known data table about the 1904 projects:
https://i.imgur.com/sHhBwgy.jpg