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Beausabre

PROPOSAL - BRITISH LARGE CRUISER ST GEORGE

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HMS SAINT GEORGE, BRITISH LARGE CRUISER

 

Other members of class HMS St Andrew, HMS St Patrick, HMS St David, HMCS Canada, HMIS Emperor of India

 

Cruiser Killers designed to utilize 9.2-inch guns removed from Lord Nelson and King Edward VII class pre-Dreadnoughts (52 guns)

 

Data for Displacement, Dimensions, Armament, Armor and Machinery input in Springsharp Warship Design Program which generated and evaluated results (from Complement to end of report)

 

Laid down 1939

 

Displacement:

17,527 t light; 18,260 t standard; 20,321 t normal; 21,970 t full load

 

Dimensions: Length overall / water x beam x draught

732.87 ft / 720.00 ft x 80.00 ft x 28.00 ft (normal load)

223.38 m / 219.46 m x 24.38 m x 8.53 m

 

Armament:

8 - 9.20" / 234 mm guns (4x2 guns), 389.34lbs / 176.60kg shells, 1905 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

12 - 4.50" / 114 mm guns (6x2 guns), 45.56lbs / 20.67kg shells, 1935 Model

Dual purpose guns in deck mounts with hoists

on side, all amidships, 2 raised mounts - superfiring

32 - 1.57" / 40.0 mm guns (4x8 guns), 1.95lbs / 0.89kg shells, 1930 Model

Anti-aircraft guns in deck mounts with hoists

on side, all amidships, all raised mounts - superfiring

8 - 1.57" / 40.0 mm guns (1x8 guns), 1.95lbs / 0.89kg shells, 1930 Model

Anti-aircraft guns in a deck mount with hoist

on centreline aft

30 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1935 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 14 raised mounts

Weight of broadside 3,747 lbs / 1,700 kg

Shells per gun, main battery: 150

6 - 21.0" / 533.4 mm above water torpedoes

 

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 10.0" / 254 mm 424.80 ft / 129.48 m 10.73 ft / 3.27 m

Ends: Unarmoured

Main Belt covers 91 % of normal length

 

- Torpedo Bulkhead:

2.00" / 51 mm 424.80 ft / 129.48 m 22.55 ft / 6.87 m

 

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 8.00" / 203 mm 4.00" / 102 mm 7.00" / 178 mm

2nd: 1.50" / 38 mm 1.50" / 38 mm -

3rd: 0.75" / 19 mm - -

4th: 0.75" / 19 mm - -

5th: 0.50" / 13 mm - -

 

- Armour deck: 4.00" / 102 mm

 

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 92,302 shp / 68,857 Kw = 31.00 kts

Range 12,000nm at 15.00 kts

Bunker at max displacement = 3,710 tons

 

Complement:

850 - 1,106

 

Cost:

£8.114 million / $32.457 million

 

Distribution of weights at normal displacement:

Armament: 468 tons, 2.3 %

Armour: 6,355 tons, 31.3 %

- Belts: 1,940 tons, 9.5 %

- Torpedo bulkhead: 709 tons, 3.5 %

- Armament: 902 tons, 4.4 %

- Armour Deck: 2,803 tons, 13.8 %

- Conning Tower: 0 tons, 0.0 %

Machinery: 2,468 tons, 12.1 %

Hull, fittings & equipment: 8,035 tons, 39.5 %

Fuel, ammunition & stores: 2,795 tons, 13.8 %

Miscellaneous weights: 200 tons, 1.0 %

 

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

35,926 lbs / 16,296 Kg = 92.3 x 9.2 " / 234 mm shells or 6.3 torpedoes

Stability (Unstable if below 1.00): 1.10

Metacentric height 4.3 ft / 1.3 m

Roll period: 16.2 seconds

Steadiness - As gun platform (Average = 50 %): 75 %

- Recoil effect (Restricted arc if above 1.00): 0.40

Seaboat quality (Average = 1.00): 1.25

 

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.441

Length to Beam Ratio: 9.00 : 1

'Natural speed' for length: 31.12 kts

Power going to wave formation at top speed: 49 %

Trim (Max stability = 0, Max steadiness = 100): 60

Bow angle (Positive = bow angles forward): 18.00 degrees

Stern overhang: 3.28 ft / 1.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 29.52 ft / 9.00 m

- Forecastle (21 %): 18.78 ft / 5.72 m

- Mid (40 %): 18.78 ft / 5.72 m

- Quarterdeck (20 %): 18.78 ft / 5.72 m

- Stern: 18.78 ft / 5.72 m

- Average freeboard: 19.68 ft / 6.00 m

 

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 79.1 %

- Above water (accommodation/working, high = better): 148.0 %

Waterplane Area: 37,884 Square feet or 3,519 Square metres

Displacement factor (Displacement / loading): 133 %

Structure weight / hull surface area: 143 lbs/sq ft or 698 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.05

- Longitudinal: 1.30

- Overall: 1.08

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is excellent

Ship has slow, easy roll, a good, steady gun platform

Good seaboat, rides out heavy weather easily

 

 

 

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So here's the the thing. The 9.2in Churchill cruisers are kinda necessary at Tier 10 if WG ever does a CL/CA split for the RN. Otherwise, we end up with the Admiral-class at Tier 10, which while technically possible, is kind of suboptimal.

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Where are you getting that info?

the only St George cruiser I’m seeing a ship from the 19th century and only had 2 9” guns

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On ‎6‎/‎2‎/‎2019 at 10:16 PM, JohnPJones said:

Where are you getting that info?

the only St George cruiser I’m seeing a ship from the 19th century and only had 2 9” guns

That's also what I'm thinking to. 

But 9 inch gun armed cruisers, with 6 of these guns. I would say these are Heavy cruisers and probably an alternate tier 10 for the British cruiser line.

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On 6/2/2019 at 8:16 PM, JohnPJones said:

Where are you getting that info?

the only St George cruiser I’m seeing a ship from the 19th century and only had 2 9” guns

Image result for magic gif

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The statistics for this ship are rather impressive, but I find the artillery somewhat underwhelming

Then again, 1900s Artillery was underwhelming, unless it was German

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