Peruvian Studies

[Borys]

When I SS & draw the ship, I think about bow & stern casemate concept...

A large circular room , (diam 4m) to receive all gun installation & gunners. A rotation platform for the gun.
The circular room is open by small windows on rails for the guns (-5°+30° elevation).

I believe that a rotating platform is the "barbette" part of the "turret&barbette".

A casematte is when you have a gun in a fixed position with a slit to fire from. The slit can be covered by a mobile shield.

Borys

[Jefgte]

The classic casemate mount with axis is not optimum for 270° rotation.
2 rails (purple)are certainly better...




;)

[Jefgte]

Escort cruiser built with:
- BBAntofagasta engines
- BBCuzco - 2T2x12"
- BBInty 1T2x12"

La Sombra de Waskar, Peru Escort Cruiser laid down 1918 (Engine 1906)

Displacement:
   12 300 t light; 12 999 t standard; 14 402 t normal; 15 525 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 72.18 ft x 23.85 ft (normal load)
   170.00 m / 170.00 m x 22.00 m  x 7.27 m

Armament:
      6 - 12.01" / 305 mm guns (3x2 guns), 865.70lbs / 392.68kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward
      12 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1918 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
      4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1918 Model
     Quick firing guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 6 498 lbs / 2 948 kg
   Shells per gun, main battery: 110
   8 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.51" / 140 mm   370.73 ft / 113.00 m   12.00 ft / 3.66 m
   Ends:   1.57" / 40 mm   177.17 ft / 54.00 m   8.01 ft / 2.44 m
     9.84 ft / 3.00 m Unarmoured ends
     Main Belt covers 102 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   3.94" / 100 mm      9.06" / 230 mm
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 1.97" / 50 mm, Conning tower: 6.30" / 160 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 38 600 shp / 28 796 Kw = 24.42 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 2 526 tons

Complement:
   656 - 854

Cost:
   £2.927 million / $11.710 million

Distribution of weights at normal displacement:
   Armament: 812 tons, 5.6 %
   Armour: 3 160 tons, 21.9 %
      - Belts: 1 125 tons, 7.8 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 955 tons, 6.6 %
      - Armour Deck: 1 000 tons, 6.9 %
      - Conning Tower: 80 tons, 0.6 %
   Machinery: 2 507 tons, 17.4 %
   Hull, fittings & equipment: 5 501 tons, 38.2 %
   Fuel, ammunition & stores: 2 102 tons, 14.6 %
   Miscellaneous weights: 320 tons, 2.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     13 927 lbs / 6 317 Kg = 16.1 x 12.0 " / 305 mm shells or 1.8 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 3.9 ft / 1.2 m
   Roll period: 15.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.69
   Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.525
   Length to Beam Ratio: 7.73 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22.97 ft / 7.00 m
      - Forecastle (18 %):   18.37 ft / 5.60 m
      - Mid (50 %):      15.09 ft / 4.60 m
      - Quarterdeck (17 %):   15.09 ft / 4.60 m
      - Stern:      15.09 ft / 4.60 m
      - Average freeboard:   16.52 ft / 5.04 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101.5 %
      - Above water (accommodation/working, high = better): 109.4 %
   Waterplane Area: 27 447 Square feet or 2 550 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 137 lbs/sq ft or 671 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.37
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

If you were to use new machinery of the same weight, how fast could she go?

[Jefgte]

That's a good idea, change the engines later to have higher speed.

Quickly, I think ... 27kts.

I must recalculate & modif the hull to have 27kts in the futur.
-----
note the economical of the study.
Have quickly a correct AC in the BS with only 9BPs.

;)

[Tanthalas]

I rather like the idea tbh.  I was toying around with somthing similar for Rohan (although I was thinking more like BBs than Cruisers)

[Jefgte]

the 12300T study is made with Antofagasta engines + LaPaz Engine - total 38600SHP
Here is an other with just Antofagasta engines (19300SHP)

The speed is just 21kts, the same as the super-dreadnoughts BB Atahualpa & BB Waskhar...
Short, but I could built 2x9500t SC with a total cost of 16BPs.
The first in 1918:
- BB Antofagasta engines (19300SHP)
- BB Cuzco - 2T2x12"
- BB Inty - 1T2x12"
The second in 1920:
- BB LaPaz engines (19300SHP)
- BB Inty - 1T2x12"
- BB Illapa - 2T2x12"
--------------------------
9500T cruiser, Peru Squadron Cruiser laid down 1918 (Engine 1906)

Displacement:
   9 500 t light; 10 083 t standard; 11 279 t normal; 12 236 t full load

Dimensions: Length overall / water x beam x draught
   505.25 ft / 505.25 ft x 72.18 ft x 22.84 ft (normal load)
   154.00 m / 154.00 m x 22.00 m  x 6.96 m

Armament:
     4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     2 - 12.00" / 305 mm guns (1x2 guns), 864.00lbs / 391.90kg shells, 1918 Model
     Breech loading guns in a turret (on a barbette)
     on centreline amidships
     8 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1918 Model
     Quick firing guns in casemate mounts
     on side, evenly spread, 4 raised mounts
     2 - 1.57" / 40.0 mm guns (1x2 guns), 1.95lbs / 0.88kg shells, 1918 Model
     Anti-aircraft guns in deck mount
     on centreline amidships, all raised guns - superfiring
     4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 5 610 lbs / 2 545 kg
   Shells per gun, main battery: 110
   6 - 21.0" / 533 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.72" / 120 mm   285.43 ft / 87.00 m   11.81 ft / 3.60 m
   Ends:   1.57" / 40 mm   203.41 ft / 62.00 m   8.01 ft / 2.44 m
     16.40 ft / 5.00 m Unarmoured ends
     Main Belt covers 87 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   3.94" / 100 mm      9.06" / 230 mm
   2nd:   11.0" / 280 mm   3.94" / 100 mm      9.06" / 230 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

  - Armour deck: 1.38" / 35 mm, Conning tower: 4.72" / 120 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 19 300 shp / 14 398 Kw = 21.07 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 2 153 tons

Complement:
   546 - 711

Cost:
   £2.194 million / $8.776 million

Distribution of weights at normal displacement:
   Armament: 701 tons, 6.2 %
   Armour: 2 308 tons, 20.5 %
      - Belts: 800 tons, 7.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 852 tons, 7.5 %
      - Armour Deck: 605 tons, 5.4 %
      - Conning Tower: 51 tons, 0.5 %
   Machinery: 1 253 tons, 11.1 %
   Hull, fittings & equipment: 4 938 tons, 43.8 %
   Fuel, ammunition & stores: 1 779 tons, 15.8 %
   Miscellaneous weights: 300 tons, 2.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     13 053 lbs / 5 921 Kg = 15.1 x 12.0 " / 305 mm shells or 2.1 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 4.0 ft / 1.2 m
   Roll period: 15.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.59
   Seaboat quality  (Average = 1.00): 1.39

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.474
   Length to Beam Ratio: 7.00 : 1
   'Natural speed' for length: 22.48 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21.00 ft / 6.40 m
      - Forecastle (23 %):   17.06 ft / 5.20 m
      - Mid (45 %):      13.78 ft / 4.20 m
      - Quarterdeck (21 %):   13.78 ft / 4.20 m
      - Stern:      13.78 ft / 4.20 m
      - Average freeboard:   15.24 ft / 4.65 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 86.1 %
      - Above water (accommodation/working, high = better): 106.0 %
   Waterplane Area: 23 740 Square feet or 2 206 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 145 lbs/sq ft or 710 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.69
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[Jefgte]

Or this one with 5T2 from BBs Inty (2)- Illapa (2) & Cuzco (1)...
Engines from BBs Antofagasta & LaPaz (19300SHPx2)

18000T, Peru Squadron Cruiser laid down 1918 (Engine 1906)

Displacement:
   18 000 t light; 19 069 t standard; 20 844 t normal; 22 265 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 85.30 ft x 24.50 ft (normal load)
   170.00 m / 170.00 m x 26.00 m  x 7.47 m

Armament:
      10 - 12.00" / 305 mm guns (5x2 guns), 864.00lbs / 391.90kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 2 raised mounts - superfiring
      16 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1918 Model
     Breech loading guns in casemate mounts
     on side, evenly spread, 8 raised mounts
      4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1918 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 10 376 lbs / 4 707 kg
   Shells per gun, main battery: 110
   6 - 21.0" / 533 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.06" / 230 mm   416.67 ft / 127.00 m   10.50 ft / 3.20 m
   Ends:   1.57" / 40 mm   124.67 ft / 38.00 m   8.01 ft / 2.44 m
     16.40 ft / 5.00 m Unarmoured ends
   Upper:   1.57" / 40 mm   416.67 ft / 127.00 m   8.01 ft / 2.44 m
     Main Belt covers 115 % of normal length

   - Torpedo Bulkhead:
      1.57" / 40 mm   416.67 ft / 127.00 m   23.62 ft / 7.20 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   3.94" / 100 mm      9.06" / 230 mm
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 2.36" / 60 mm, Conning tower: 9.06" / 230 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 38 600 shp / 28 796 Kw = 22.68 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 3 195 tons

Complement:
   866 - 1 127

Cost:
   £4.141 million / $16.563 million

Distribution of weights at normal displacement:
   Armament: 1 297 tons, 6.2 %
   Armour: 6 012 tons, 28.8 %
      - Belts: 1 961 tons, 9.4 %
      - Torpedo bulkhead: 574 tons, 2.8 %
      - Armament: 1 772 tons, 8.5 %
      - Armour Deck: 1 558 tons, 7.5 %
      - Conning Tower: 148 tons, 0.7 %
   Machinery: 2 506 tons, 12.0 %
   Hull, fittings & equipment: 7 884 tons, 37.8 %
   Fuel, ammunition & stores: 2 844 tons, 13.6 %
   Miscellaneous weights: 300 tons, 1.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     23 117 lbs / 10 486 Kg = 26.8 x 12.0 " / 305 mm shells or 3.7 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 4.6 ft / 1.4 m
   Roll period: 16.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.78
   Seaboat quality  (Average = 1.00): 1.25

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.626
   Length to Beam Ratio: 6.54 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24.28 ft / 7.40 m
      - Forecastle (20 %):   20.34 ft / 6.20 m
      - Mid (50 %):      17.06 ft / 5.20 m
      - Quarterdeck (19 %):   17.06 ft / 5.20 m
      - Stern:      17.06 ft / 5.20 m
      - Average freeboard:   18.52 ft / 5.65 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 114.6 %
      - Above water (accommodation/working, high = better): 127.9 %
   Waterplane Area: 35 649 Square feet or 3 312 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 162 lbs/sq ft or 789 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.37
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[Jefgte]

Testing this one...

24250T, Peru fast BB laid down 1918 (Engine 1916)

Displacement:
   24 250 t light; 25 461 t standard; 26 804 t normal; 27 879 t full load

Dimensions: Length overall / water x beam x draught
   708.66 ft / 708.66 ft x 88.58 ft x 29.89 ft (normal load)
   216.00 m / 216.00 m x 27.00 m  x 9.11 m

Armament:
      9 - 13.39" / 340 mm guns (3x3 guns), 1 200.00lbs / 544.31kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1918 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
      2 - 1.57" / 40.0 mm guns (1x2 guns), 1.95lbs / 0.89kg shells, 1918 Model
     Breech loading guns in deck mount
     on side, all raised guns
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 11 437 lbs / 5 188 kg
   Shells per gun, main battery: 105
   12 - 21.0" / 533 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.4" / 340 mm   459.32 ft / 140.00 m   10.17 ft / 3.10 m
   Ends:   4.72" / 120 mm   209.97 ft / 64.00 m   8.01 ft / 2.44 m
     39.37 ft / 12.00 m Unarmoured ends
   Upper:   3.15" / 80 mm   459.32 ft / 140.00 m   0.00 ft / 0.00 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      1.57" / 40 mm   459.32 ft / 140.00 m   29.04 ft / 8.85 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.4" / 340 mm   4.72" / 120 mm      11.8" / 300 mm
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 3.54" / 90 mm, Conning tower: 13.39" / 340 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 78 000 shp / 58 188 Kw = 27.16 kts
   Range 7 000nm at 12.00 kts
   Bunker at max displacement = 2 418 tons

Complement:
   1 046 - 1 361

Cost:
   £4.911 million / $19.646 million

Distribution of weights at normal displacement:
   Armament: 1 429 tons, 5.3 %
   Armour: 8 720 tons, 32.5 %
      - Belts: 2 951 tons, 11.0 %
      - Torpedo bulkhead: 777 tons, 2.9 %
      - Armament: 1 992 tons, 7.4 %
      - Armour Deck: 2 742 tons, 10.2 %
      - Conning Tower: 258 tons, 1.0 %
   Machinery: 2 906 tons, 10.8 %
   Hull, fittings & equipment: 10 895 tons, 40.6 %
   Fuel, ammunition & stores: 2 554 tons, 9.5 %
   Miscellaneous weights: 300 tons, 1.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     32 306 lbs / 14 654 Kg = 26.9 x 13.4 " / 340 mm shells or 5.0 torpedoes
   Stability (Unstable if below 1.00): 1.02
   Metacentric height 4.4 ft / 1.3 m
   Roll period: 17.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.80
   Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 8.00 : 1
   'Natural speed' for length: 26.62 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      25.59 ft / 7.80 m
      - Forecastle (21 %):   21.33 ft / 6.50 m
      - Mid (50 %):      18.04 ft / 5.50 m
      - Quarterdeck (20 %):   18.04 ft / 5.50 m
      - Stern:      18.04 ft / 5.50 m
      - Average freeboard:   19.57 ft / 5.96 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99.3 %
      - Above water (accommodation/working, high = better): 124.7 %
   Waterplane Area: 41 826 Square feet or 3 886 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 178 lbs/sq ft or 870 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.27
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[Sachmle]

Stability is low at 1.02 and she's got a L/B higher than RL Iowa (7.39/1 BTW) with a fairly low BC for a BB (0.500).

[Guinness]

The low stability is a direct result of the high L/B ratio, I imagine.

The other thing that sticks out is the main belt. 3.1m on a 27+ knot ship seems pretty short to me.

An interesting illustration of the limits of building fast capital ships.

Just for giggles though: what could you do if she shipped 30cm guns instead of the 34cm?

[Jefgte]

This 24250t BB is not really serious. I SS quickly before going to bed...  :D  :D  :D


;)

[mentat]

i think the Fast BB has potential (well i like Fast BBs) - a few items to tweak - upper + end belts, as well as narrow main belt, bit more beam to increase stability - a 26kton Fast BB could be handy  ;D

[Jefgte]

I agree, 26000t is certainly better, 24250t is too light.

;)

[Jefgte]

With the classic 22kts & AXY turrets

LaPaz, Peru BB laid down 1920 (Engine 1916)

Displacement:
   20 000 t light; 21 107 t standard; 22 500 t normal; 23 613 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 89.90 ft x 28.82 ft (normal load)
   170.00 m / 170.00 m x 27.40 m  x 8.78 m

Armament:
      9 - 13.39" / 340 mm guns (3x3 guns), 1 200.00lbs / 544.31kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority aft, 1 raised mount aft - superfiring
      16 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1920 Model
     Quick firing guns in casemate mounts
     on side, evenly spread, 8 raised mounts
      2 - 1.57" / 40.0 mm guns (1x2 guns), 1.95lbs / 0.89kg shells, 1920 Model
     Anti-aircraft guns in deck mount
     on centreline forward, all raised guns
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 11 648 lbs / 5 283 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.4" / 340 mm   354.33 ft / 108.00 m   11.81 ft / 3.60 m
   Ends:   4.72" / 120 mm   170.60 ft / 52.00 m   10.01 ft / 3.05 m
     32.81 ft / 10.00 m Unarmoured ends
   Upper:   4.72" / 120 mm   354.33 ft / 108.00 m   8.01 ft / 2.44 m
     Main Belt covers 98 % of normal length

   - Torpedo Bulkhead:
      1.57" / 40 mm   354.33 ft / 108.00 m   28.81 ft / 8.78 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.4" / 340 mm   5.91" / 150 mm      11.8" / 300 mm
   2nd:   0.79" / 20 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 3.15" / 80 mm, Conning tower: 11.81" / 300 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 35 000 shp / 26 110 Kw = 22.02 kts
   Range 8 500nm at 12.00 kts
   Bunker at max displacement = 2 506 tons

Complement:
   918 - 1 194

Cost:
   £4.975 million / $19.901 million

Distribution of weights at normal displacement:
   Armament: 1 455 tons, 6.5 %
   Armour: 7 955 tons, 35.4 %
      - Belts: 3 351 tons, 14.9 %
      - Torpedo bulkhead: 595 tons, 2.6 %
      - Armament: 1 778 tons, 7.9 %
      - Armour Deck: 2 029 tons, 9.0 %
      - Conning Tower: 203 tons, 0.9 %
   Machinery: 1 304 tons, 5.8 %
   Hull, fittings & equipment: 8 986 tons, 39.9 %
   Fuel, ammunition & stores: 2 499 tons, 11.1 %
   Miscellaneous weights: 300 tons, 1.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     30 954 lbs / 14 040 Kg = 25.8 x 13.4 " / 340 mm shells or 5.4 torpedoes
   Stability (Unstable if below 1.00): 1.05
   Metacentric height 4.7 ft / 1.4 m
   Roll period: 17.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.83
   Seaboat quality  (Average = 1.00): 1.42

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.545
   Length to Beam Ratio: 6.20 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24.93 ft / 7.60 m
      - Forecastle (21 %):   21.65 ft / 6.60 m
      - Mid (70 %):      20.47 ft / 6.24 m (12.47 ft / 3.80 m aft of break)
      - Quarterdeck (19 %):   12.47 ft / 3.80 m
      - Stern:      12.47 ft / 3.80 m
      - Average freeboard:   18.87 ft / 5.75 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 89.0 %
      - Above water (accommodation/working, high = better): 140.5 %
   Waterplane Area: 34 828 Square feet or 3 236 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 182 lbs/sq ft or 889 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.86
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily