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Tzoli

Post WW1 Battleship Designs

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Alpha Tester
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My knowledge on the history of these designs are limited but I know that after World War I, the Admirality wanted to build new generation of capital ships, both battleships and battlecruisers taking into account recent development of warship construction, weaponry and technology together with war experience especially the battle of Jutland taking into account. Design of new capital ships started in late 1919 and ended when the Washington Naval treaty forbid the construction of new Capital ships with some exceptions. Among these, the final versions which were considered to be built were the G3 class battlecruisers and N3 class battleships.

In the end out of 4 ships only the 2 Nelsons were built which was allowed by treaty as Great Britain did not had any 406mm (16inch) armed battleships.

These ships would be large fast and heavily armed. Here I post data and if available drawings of the battleship proposals of the RN after WW1:

 

The letters usually lack much logic but the numbers show the number of barrels per turret.
The last row include Vickers's own export design for Japan for Rear Admiral Hiraga Yuzuru. You can find the thread here:

http://forum.worldofwarships.eu/index.php?/topic/4173-design-873-battleship/

 

Designation L2 L3 M2 M3 N3 O3 (Nelson as built) O3 (Nelson modernisation proposal) P3 Q3 Vickers Design 873
Displacement 52.100tons 51.100tons 48.750tons 46.000tons 48.500tons 41.250tons 44.000tons 48.000tons 48.000tons 39.500tons
Dimensions 262 x 32,3 x 10,2m 262 x 32,3 x 10m 249 x 32,3 x 10m 236 x 32,3 x 10m 250 x 32,3 x 10,1m 216,4 x 32,3 x 10,2m 216,4 x 32,3 x 10,2m 218,54 x 31,7 x 9,14m 218,54 x 31,7 x 9,14m 204,22 x 32 x 9,14m
Engine Power / Speed

70.000shp, 2shafts

46km/h

70.000shp, 2shafts

46km/h

56.000shp, 2shafts

44km/h

56.000shp, 2shafts

44km/h

50.000shp, 2shafts

44km/h

45.000shp, 2shafts

43km/h

45.000shp, 2shafts

43km/h

45.000shp, 2shafts

43km/h

45.000shp, 2shafts

43km/h

52.000shp, 2shafts

44km/h

Armour

Belt: 381mm

Deck: 203mm

Belt: 381mm

Deck: 203mm

Belt: 381mm

Deck: 203mm

Belt: 381mm

Deck: 203mm

Belt: 381mm

Deck: 203mm

Belt: 356mm

Deck: 159mm

Belt: 356mm

Deck: 159mm

Belt: 356mm

Deck: 203mm

Belt: 356mm

Deck: 203mm

Belt: 356mm

Deck: 184mm

Main Armament 457mm Mark II (4x2) 457mm Mark II (3x3) 457mm Mark II (4x2) 457mm Mark II (3x3) 457mm Mark II (3x3) 406mm Mark I (3x3) 406mm Mark I (3x3) 381mm Mark I (3x3) 381mm Mark I (3x3) 406mm Mark I (3x3)
Secondary Armament 152mm Mark XXII (8x2) 152mm Mark XXII (8x2) 152mm Mark XXII (8x2) 152mm Mark XXII (8x2) 152mm Mark XXII (8x2) 152mm Mark XXII (6x2) 133mm Mark I (6x2) 152mm Mark XXII (6x2) 152mm Mark XXII (6x2) 152mm Mark XXII (6x2)
Heavy AA Armament 120mm Mark VIII (6x1) 120mm Mark VIII (6x1) 120mm Mark VIII (5x1) 120mm Mark VIII (5x1) 120mm Mark VIII (6x1) 120mm Mark VIII (6x1) 114mm Mark III (6x2) 120mm Mark VIII (6x1) 120mm Mark VIII (6x1) 120mm Mark VIII (6x1)
Light AA Armament 40mm Mark VIII (4x10) 40mm Mark VIII (4x10) 40mm Mark VIII (2x10) 40mm Mark VIII (2x10) 40mm Mark VIII (4x10) 40mm Mark II (8x1) 40mm Mark VIII (6x8)
20mm Mark I (61x1)
40mm Mark VIII (4x10) 40mm Mark VIII (4x10) 40mm Mark VIII (4x8)
Other

622mm (2x1)

Torpedo tubes

622mm (2x1)

Torpedo tubes

622mm (2x1)

Torpedo tubes

622mm (2x1)

Torpedo tubes

622mm (2x1)

Torpedo tubes

622mm (2x1)

Torpedo tubes

622mm (2x1)

Torpedo tubes

1x Walrus Floatplane

622mm (2x1)

Torpedo tubes

622mm (2x1)

Torpedo tubes

 
 

Often the names associated for the 4 N3 class vessels are:
HMS St. Andrew

HMS St. George

HMS St. David

HMS St. Patrick

The 4 patron saints of England, Wales, Scotland and Ireland

 

L2 and L3:

BattleshipsLLL2.jpg

L3, M2 and M3:

BattleshipsL3M2andM3.jpg

N3:

G3%20class%20battlecruiser%20%26%20N3%20

O3, P3 and Q3:

WVB4Ntf.png

 

Vickers design:

ip6yvd5.png

 

And a top view comparison of the battleship and battlecruiser designs:

all2male.jpg

Edited by Tzoli
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