Middle Kingdom Design Studies for 1920

[snip]

Majestic with some more freeboard tweeking. Also added some MG's

Xióngw?i (Majestic) Class, Middle Kingdom Cruiser laid down 1920 (Engine 1916)

Displacement:
   6,000 t light; 6,314 t standard; 8,551 t normal; 10,341 t full load

Dimensions: Length overall / water x beam x draught
   551.17 ft / 541.34 ft x 55.77 ft x 18.04 ft (normal load)
   168.00 m / 165.00 m x 17.00 m  x 5.50 m

Armament:
      8 - 5.91" / 150 mm guns (4x2 guns), 99.21lbs / 45.00kg shells, 1915 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      6 - 2.95" / 75.0 mm guns (3x2 guns), 14.33lbs / 6.50kg shells, 1915 Model
     Quick firing guns in deck mounts
     on centreline, all aft, all raised mounts - superfiring
      4 - 2.95" / 75.0 mm guns in single mounts, 14.33lbs / 6.50kg shells, 1915 Model
     Quick firing guns in deck mounts
     on side, all forward, 2 raised mounts - superfiring
      6 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      10 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread, 4 raised mounts
   Weight of broadside 965 lbs / 438 kg
   Shells per gun, main battery: 250
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.94" / 100 mm   351.87 ft / 107.25 m   8.96 ft / 2.73 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.12" / 130 mm   2.95" / 75 mm      5.91" / 150 mm
   2nd:   0.98" / 25 mm         -               -
   3rd:   0.98" / 25 mm         -               -

   - Armour deck: 0.79" / 20 mm, Conning tower: 4.72" / 120 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 3 shafts, 47,733 shp / 35,609 Kw = 28.00 kts
   Range 11,000nm at 17.00 kts
   Bunker at max displacement = 4,027 tons (10% coal)

Complement:
   443 - 577

Cost:
   £1.333 million / $5.334 million

Distribution of weights at normal displacement:
   Armament: 123 tons, 1.4 %
   Armour: 1,012 tons, 11.8 %
      - Belts: 519 tons, 6.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 144 tons, 1.7 %
      - Armour Deck: 307 tons, 3.6 %
      - Conning Tower: 43 tons, 0.5 %
   Machinery: 1,795 tons, 21.0 %
   Hull, fittings & equipment: 2,770 tons, 32.4 %
   Fuel, ammunition & stores: 2,551 tons, 29.8 %
   Miscellaneous weights: 300 tons, 3.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11,718 lbs / 5,315 Kg = 113.8 x 5.9 " / 150 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 3.0 ft / 0.9 m
   Roll period: 13.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 78 %
         - Recoil effect (Restricted arc if above 1.00): 0.29
   Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.549
   Length to Beam Ratio: 9.71 : 1
   'Natural speed' for length: 23.27 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 68
   Bow angle (Positive = bow angles forward): 30.00 degrees
   Stern overhang: 0.36 ft / 0.11 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      16.40 ft / 5.00 m
      - Forecastle (20 %):   15.58 ft / 4.75 m
      - Mid (50 %):      15.58 ft / 4.75 m
      - Quarterdeck (15 %):   15.58 ft / 4.75 m
      - Stern:      15.58 ft / 4.75 m
      - Average freeboard:   15.65 ft / 4.77 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84.4 %
      - Above water (accommodation/working, high = better): 121.8 %
   Waterplane Area: 21,058 Square feet or 1,956 Square metres
   Displacement factor (Displacement / loading): 145 %
   Structure weight / hull surface area: 87 lbs/sq ft or 426 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.01
      - 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

[snip]

And Searchlight with the same.

Tànzhàod?ng (Searchlight), Chinese Destroyer Leader/Scout Cruiser laid down 1920 (Engine 1916)

Displacement:
   3,810 t light; 3,954 t standard; 5,216 t normal; 6,225 t full load

Dimensions: Length overall / water x beam x draught
   501.96 ft / 492.13 ft x 45.93 ft x 14.76 ft (normal load)
   153.00 m / 150.00 m x 14.00 m  x 4.50 m

Armament:
      6 - 4.72" / 120 mm guns (3x2 guns), 46.30lbs / 21.00kg shells, 1915 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, majority aft, 1 raised mount aft - superfiring
      6 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on side, all amidships
      10 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1915 Model
     Machine guns in deck mounts
     on side, evenly spread, 4 raised mounts
   Weight of broadside 305 lbs / 139 kg
   Shells per gun, main battery: 220
   6 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.98" / 25 mm   383.86 ft / 117.00 m   8.14 ft / 2.48 m
   Ends:   0.59" / 15 mm     82.02 ft / 25.00 m   8.14 ft / 2.48 m
     26.25 ft / 8.00 m Unarmoured ends
   Upper:   0.98" / 25 mm   309.22 ft / 94.25 m   8.01 ft / 2.44 m
     Main Belt covers 120 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.59" / 15 mm      1.18" / 30 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 3 shafts, 41,481 shp / 30,945 Kw = 29.00 kts
   Range 8,500nm at 17.00 kts
   Bunker at max displacement = 2,271 tons

Complement:
   306 - 398

Cost:
   £0.912 million / $3.648 million

Distribution of weights at normal displacement:
   Armament: 43 tons, 0.8 %
   Armour: 256 tons, 4.9 %
      - Belts: 240 tons, 4.6 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 16 tons, 0.3 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 1,545 tons, 29.6 %
   Hull, fittings & equipment: 1,816 tons, 34.8 %
   Fuel, ammunition & stores: 1,405 tons, 26.9 %
   Miscellaneous weights: 150 tons, 2.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,008 lbs / 2,725 Kg = 114.0 x 4.7 " / 120 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.39
   Metacentric height 2.8 ft / 0.8 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.13
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.547
   Length to Beam Ratio: 10.71 : 1
   'Natural speed' for length: 22.18 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 30.00 degrees
   Stern overhang: 1.31 ft / 0.40 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      14.76 ft / 4.50 m
      - Forecastle (20 %):   13.94 ft / 4.25 m
      - Mid (50 %):      13.94 ft / 4.25 m
      - Quarterdeck (15 %):   13.94 ft / 4.25 m
      - Stern:      13.94 ft / 4.25 m
      - Average freeboard:   14.01 ft / 4.27 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 106.2 %
      - Above water (accommodation/working, high = better): 111.6 %
   Waterplane Area: 15,731 Square feet or 1,461 Square metres
   Displacement factor (Displacement / loading): 136 %
   Structure weight / hull surface area: 75 lbs/sq ft or 366 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.07
      - Longitudinal: 0.98
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate

[snip]

As some have hinted at, a CDS (I call this one a pocket battleship due to its guns) Basically the Remembrance as originally presented with some tweaks. Bit more "traditional" of a design for the MK, yay for underwater torps!

Dúlì (Independence) Class, Chinese Pocket Battleship/CDS laid down 1920 (Engine 1916)

Displacement:
   8,400 t light; 8,931 t standard; 9,459 t normal; 9,882 t full load

Dimensions: Length overall / water x beam x draught
   377.28 ft / 374.02 ft x 75.46 ft x 21.33 ft (normal load)
   115.00 m / 114.00 m x 23.00 m  x 6.50 m

Armament:
      4 - 12.01" / 305 mm guns (2x2 guns), 903.90lbs / 410.00kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      8 - 4.72" / 120 mm guns (4x2 guns), 46.30lbs / 21.00kg shells, 1920 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
      6 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on centreline, all amidships, all raised mounts - superfiring
   Weight of broadside 4,009 lbs / 1,818 kg
   Shells per gun, main battery: 150
   4 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.84" / 250 mm   243.11 ft / 74.10 m   10.43 ft / 3.18 m
   Ends:   2.95" / 75 mm   130.87 ft / 39.89 m   10.43 ft / 3.18 m
   Upper:   7.09" / 180 mm   243.11 ft / 74.10 m   8.01 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      1.57" / 40 mm   243.11 ft / 74.10 m   18.37 ft / 5.60 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.84" / 250 mm   7.09" / 180 mm      9.06" / 230 mm
   2nd:   3.94" / 100 mm   0.98" / 25 mm      2.95" / 75 mm
   3rd:   0.98" / 25 mm         -               -

   - Armour deck: 1.57" / 40 mm, Conning tower: 9.84" / 250 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 16,702 shp / 12,460 Kw = 20.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 951 tons (20% coal)

Complement:
   479 - 623

Cost:
   £1.874 million / $7.498 million

Distribution of weights at normal displacement:
   Armament: 488 tons, 5.2 %
   Armour: 3,474 tons, 36.7 %
      - Belts: 1,886 tons, 19.9 %
      - Torpedo bulkhead: 260 tons, 2.8 %
      - Armament: 659 tons, 7.0 %
      - Armour Deck: 574 tons, 6.1 %
      - Conning Tower: 95 tons, 1.0 %
   Machinery: 634 tons, 6.7 %
   Hull, fittings & equipment: 3,404 tons, 36.0 %
   Fuel, ammunition & stores: 1,059 tons, 11.2 %
   Miscellaneous weights: 400 tons, 4.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     12,543 lbs / 5,689 Kg = 14.5 x 12.0 " / 305 mm shells or 3.0 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 4.2 ft / 1.3 m
   Roll period: 15.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 53 %
         - Recoil effect (Restricted arc if above 1.00): 0.33
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has low quarterdeck
   Block coefficient: 0.550
   Length to Beam Ratio: 4.96 : 1
   'Natural speed' for length: 19.34 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 53
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 0.95 ft / 0.29 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      13.12 ft / 4.00 m
      - Forecastle (20 %):   13.12 ft / 4.00 m
      - Mid (50 %):      13.12 ft / 4.00 m
      - Quarterdeck (15 %):   12.30 ft / 3.75 m (13.12 ft / 4.00 m before break)
      - Stern:      12.30 ft / 3.75 m
      - Average freeboard:   13.00 ft / 3.96 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 96.9 %
      - Above water (accommodation/working, high = better): 102.8 %
   Waterplane Area: 19,698 Square feet or 1,830 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 130 lbs/sq ft or 636 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 2.01
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate

[Blooded]

The CBB/monitor is kind of short for such a 'fine' hull. you should go for a BC of .65 or so and decrease draught to go all the way to chongquing. As a comparison the Brit monitors had BCs of .80 or so(US ones at .68?-Arkansas) But they were much slower as well. I have a great book on them I will try to review what the BCs were. Then again a hull depth of 30' could be needed for non raised turrets.

As to others... Most designs end up with excess Longitudinal strength. If you have extra Cross sectional you should increase freeboard until it evens out at 1.00 on both. That makes for the most 'efficient' design. Longitudinal is usually higher because of excess freeboard for good seakeeping, for a good fire platform and/ or good upper half space/crew accomedations. It has taken me years to figure out how it works and what makes the best compromise.

[snip]

And now I have truly gone off the deep end... Basicly a copy of the Defflinger Class Battlecruisers. At this time, the biggest BB Im considering. Would be the flagship. Thoughts?

Lóng Wù (Dragon Mist) Class, Chinese Fast Battleship laid down 1920 (Engine 1916)

Displacement:
   26,600 t light; 27,920 t standard; 29,516 t normal; 30,793 t full load

Dimensions: Length overall / water x beam x draught
   715.23 ft / 692.26 ft x 95.14 ft x 26.25 ft (normal load)
   218.00 m / 211.00 m x 29.00 m  x 8.00 m

Armament:
      8 - 12.01" / 305 mm guns (4x2 guns), 903.90lbs / 410.00kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 5.91" / 150 mm guns (6x2 guns), 99.21lbs / 45.00kg shells, 1915 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      4 - 2.95" / 75.0 mm guns in single mounts, 14.33lbs / 6.50kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on side ends, evenly spread
      6 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread, all raised mounts
      20 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 8,511 lbs / 3,861 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.0" / 330 mm   449.97 ft / 137.15 m   11.71 ft / 3.57 m
   Ends:   4.02" / 102 mm   242.26 ft / 73.84 m   11.71 ft / 3.57 m
   Upper:   8.07" / 205 mm   449.97 ft / 137.15 m   8.01 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      3.15" / 80 mm   449.97 ft / 137.15 m   24.08 ft / 7.34 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.0" / 330 mm   9.84" / 250 mm      13.0" / 330 mm
   2nd:   5.91" / 150 mm   2.95" / 75 mm      6.10" / 155 mm
   3rd:   0.98" / 25 mm         -               -
   4th:   0.39" / 10 mm         -               -
   5th:   0.39" / 10 mm         -               -

   - Armour deck: 2.36" / 60 mm, Conning tower: 12.99" / 330 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 86,096 shp / 64,228 Kw = 27.00 kts
   Range 5,600nm at 14.00 kts
   Bunker at max displacement = 2,873 tons

Complement:
   1,125 - 1,463

Cost:
   £5.308 million / $21.233 million

Distribution of weights at normal displacement:
   Armament: 1,031 tons, 3.5 %
   Armour: 10,919 tons, 37.0 %
      - Belts: 4,626 tons, 15.7 %
      - Torpedo bulkhead: 1,263 tons, 4.3 %
      - Armament: 2,662 tons, 9.0 %
      - Armour Deck: 2,100 tons, 7.1 %
      - Conning Tower: 267 tons, 0.9 %
   Machinery: 3,208 tons, 10.9 %
   Hull, fittings & equipment: 11,018 tons, 37.3 %
   Fuel, ammunition & stores: 2,916 tons, 9.9 %
   Miscellaneous weights: 425 tons, 1.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     48,188 lbs / 21,858 Kg = 55.7 x 12.0 " / 305 mm shells or 8.5 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 5.7 ft / 1.7 m
   Roll period: 16.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 59 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.18

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.598
   Length to Beam Ratio: 7.28 : 1
   'Natural speed' for length: 26.31 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 30.00 degrees
   Stern overhang: 9.71 ft / 2.96 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22.97 ft / 7.00 m
      - Forecastle (20 %):   22.15 ft / 6.75 m
      - Mid (50 %):      21.33 ft / 6.50 m
      - Quarterdeck (15 %):   21.33 ft / 6.50 m
      - Stern:      21.33 ft / 6.50 m
      - Average freeboard:   21.68 ft / 6.61 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82.0 %
      - Above water (accommodation/working, high = better): 175.1 %
   Waterplane Area: 48,063 Square feet or 4,465 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 166 lbs/sq ft or 812 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.17
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent

[Blooded]

I am not certain of the rules regarding these, but I believe mount and hoist are limited to around 2" of armor. I use 1.5" on hoist, 2" on face and 1" on side. I forget what rules pertain to the introduction of turret and barbette as secondaries but maybe you could try that.

Otherwise it looks great!

[snip]

Better in regards to the secondaries?

Lóng Wù (Dragon Mist) Class, Chinese Fast Battleship laid down 1920 (Engine 1916)

Displacement:
   26,600 t light; 27,920 t standard; 29,516 t normal; 30,793 t full load

Dimensions: Length overall / water x beam x draught
   715.23 ft / 692.26 ft x 95.14 ft x 26.25 ft (normal load)
   218.00 m / 211.00 m x 29.00 m  x 8.00 m

Armament:
      8 - 12.01" / 305 mm guns (4x2 guns), 903.90lbs / 410.00kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 5.91" / 150 mm guns (6x2 guns), 99.21lbs / 45.00kg shells, 1915 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      4 - 2.95" / 75.0 mm guns in single mounts, 14.33lbs / 6.50kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on side ends, evenly spread
      6 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread, all raised mounts
      20 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 8,512 lbs / 3,861 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.0" / 330 mm   449.97 ft / 137.15 m   11.71 ft / 3.57 m
   Ends:   4.02" / 102 mm   242.26 ft / 73.84 m   11.71 ft / 3.57 m
   Upper:   8.07" / 205 mm   449.97 ft / 137.15 m   8.01 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      3.15" / 80 mm   449.97 ft / 137.15 m   24.08 ft / 7.34 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.0" / 330 mm   11.4" / 290 mm      13.0" / 330 mm
   2nd:   2.95" / 75 mm   2.95" / 75 mm      3.94" / 100 mm
   3rd:   0.98" / 25 mm         -               -
   4th:   0.39" / 10 mm         -               -
   5th:   0.39" / 10 mm         -               -

   - Armour deck: 2.36" / 60 mm, Conning tower: 12.99" / 330 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 86,097 shp / 64,228 Kw = 27.00 kts
   Range 5,600nm at 14.00 kts
   Bunker at max displacement = 2,873 tons

Complement:
   1,125 - 1,463

Cost:
   £5.308 million / $21.234 million

Distribution of weights at normal displacement:
   Armament: 1,031 tons, 3.5 %
   Armour: 10,959 tons, 37.1 %
      - Belts: 4,630 tons, 15.7 %
      - Torpedo bulkhead: 1,263 tons, 4.3 %
      - Armament: 2,699 tons, 9.1 %
      - Armour Deck: 2,100 tons, 7.1 %
      - Conning Tower: 267 tons, 0.9 %
   Machinery: 3,208 tons, 10.9 %
   Hull, fittings & equipment: 10,978 tons, 37.2 %
   Fuel, ammunition & stores: 2,916 tons, 9.9 %
   Miscellaneous weights: 425 tons, 1.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     48,045 lbs / 21,793 Kg = 55.5 x 12.0 " / 305 mm shells or 8.5 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 5.7 ft / 1.7 m
   Roll period: 16.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 59 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.18

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.598
   Length to Beam Ratio: 7.28 : 1
   'Natural speed' for length: 26.31 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 30.00 degrees
   Stern overhang: 9.71 ft / 2.96 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22.97 ft / 7.00 m
      - Forecastle (20 %):   22.15 ft / 6.75 m
      - Mid (50 %):      21.33 ft / 6.50 m
      - Quarterdeck (15 %):   21.33 ft / 6.50 m
      - Stern:      21.33 ft / 6.50 m
      - Average freeboard:   21.68 ft / 6.61 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82.0 %
      - Above water (accommodation/working, high = better): 175.1 %
   Waterplane Area: 48,063 Square feet or 4,465 Square metres
   Displacement factor (Displacement / loading): 113 %
   Structure weight / hull surface area: 166 lbs/sq ft or 809 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.16
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent

[maddox]

It is generaly accepted that 6 secundaries per broadside are the least you need for a reasonable cover.

[snip]

it has three twin mounts per side. or do you mean six mounts?

[maddox]

6 guns, 3 twins like yours.

But that's the absolute minimum according to the French Battleship designers.

[snip]

well that is what she has. I could always add in some more 3" for close in anti-MTB work, but the ones already on there are AA guns. (and as we have no DP guns til 1926ish....)

[Jefgte]

For the Peruvian BBs, Admiral Vencedores adopt an other secondary concept;
2 groups of 3 or 4 guns with their own firing conductor able to engage 2 DDs.

This secondary concept is installed on the BBs Atahualpa & Waskhar, secondaries guns (120mm) are in 2 groups.

For the last NUS Cruisers ( Cuntisuyu class )
The artillery 4T2x150 +4x120 is abble to engage 3 # targets.


Jef

[snip]

that makes sense but there are going to be lots of screening ships so I think that each twin mount would be responsible for a single target. I don't think that the MK fleet will consist of that many BB's. Of course all of these plans are dependent on how the war ends. For all I know I may be in debt up to my ears until 1930.

[snip]

After some poaking around, I realized the deck was WAY thin on the Dragon Mist. Now tipping the scales at 28600 tons...

Lóng zhī jiàn (Dragon's Sword) Class, Chinese Fast Battleship laid down 1920 (Engine 1916)

Displacement:
   28,600 t light; 29,971 t standard; 32,056 t normal; 33,724 t full load

Dimensions: Length overall / water x beam x draught
   715.23 ft / 692.26 ft x 95.14 ft x 26.25 ft (normal load)
   218.00 m / 211.00 m x 29.00 m  x 8.00 m

Armament:
      8 - 12.01" / 305 mm guns (4x2 guns), 903.90lbs / 410.00kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 5.91" / 150 mm guns (6x2 guns), 99.21lbs / 45.00kg shells, 1915 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      4 - 2.95" / 75.0 mm guns in single mounts, 14.33lbs / 6.50kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on side ends, evenly spread
      6 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1915 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread, all raised mounts
      20 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 8,512 lbs / 3,861 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.0" / 330 mm   449.97 ft / 137.15 m   11.71 ft / 3.57 m
   Ends:   3.94" / 100 mm   242.26 ft / 73.84 m   11.71 ft / 3.57 m
   Upper:   7.87" / 200 mm   449.97 ft / 137.15 m   8.01 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      3.15" / 80 mm   449.97 ft / 137.15 m   24.08 ft / 7.34 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.0" / 330 mm   11.4" / 290 mm      13.0" / 330 mm
   2nd:   2.95" / 75 mm   2.95" / 75 mm      3.94" / 100 mm
   3rd:   0.98" / 25 mm         -               -
   4th:   0.39" / 10 mm         -               -
   5th:   0.39" / 10 mm         -               -

   - Armour deck: 3.94" / 100 mm, Conning tower: 12.99" / 330 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 92,534 shp / 69,030 Kw = 27.00 kts
   Range 6,000nm at 15.00 kts
   Bunker at max displacement = 3,753 tons

Complement:
   1,197 - 1,557

Cost:
   £5.553 million / $22.213 million

Distribution of weights at normal displacement:
   Armament: 1,031 tons, 3.2 %
   Armour: 12,518 tons, 39.0 %
      - Belts: 4,602 tons, 14.4 %
      - Torpedo bulkhead: 1,263 tons, 3.9 %
      - Armament: 2,699 tons, 8.4 %
      - Armour Deck: 3,672 tons, 11.5 %
      - Conning Tower: 282 tons, 0.9 %
   Machinery: 3,448 tons, 10.8 %
   Hull, fittings & equipment: 11,180 tons, 34.9 %
   Fuel, ammunition & stores: 3,456 tons, 10.8 %
   Miscellaneous weights: 425 tons, 1.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     54,018 lbs / 24,502 Kg = 62.4 x 12.0 " / 305 mm shells or 9.5 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 5.9 ft / 1.8 m
   Roll period: 16.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 57 %
         - Recoil effect (Restricted arc if above 1.00): 0.44
   Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.649
   Length to Beam Ratio: 7.28 : 1
   'Natural speed' for length: 26.31 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 30.00 degrees
   Stern overhang: 9.71 ft / 2.96 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22.97 ft / 7.00 m
      - Forecastle (20 %):   22.15 ft / 6.75 m
      - Mid (50 %):      21.33 ft / 6.50 m
      - Quarterdeck (15 %):   21.33 ft / 6.50 m
      - Stern:      21.33 ft / 6.50 m
      - Average freeboard:   21.68 ft / 6.61 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 78.7 %
      - Above water (accommodation/working, high = better): 172.6 %
   Waterplane Area: 50,410 Square feet or 4,683 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 163 lbs/sq ft or 794 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.12
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent

I think I have just made a heavy Alaska-type cruiser here, tho she is a bit slow for that sort of thing, hence the Fast Battleship designation.

[mentat]

  Given the moderate speed but strong protection - looks more like a Hindenburg to me - nice design - gets my vote  ;D