Royal Navy 1902

[Logi]

laid down 1904

Engine Year should be 1905

Steadiness   - As gun platform (Average = 50 %): 69 %

You probably want to bump this up by 1.

- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.0" / 330 mm   350.00 ft / 106.68 m   16.00 ft / 4.88 m

That's very thick belt armor. Historically the thickest belt armor I've seen for the period is 12" on the American ships. British ships tended to max out at 11".

I mention that since you could use that weight to help in adding deck armor which you are missing, as Tan pointed out.

[Darman]

Dreadnought, United Kingdom Battleship laid down 1904

Displacement:
   18,850 t light; 19,677 t standard; 21,073 t normal; 22,190 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (520.00 ft / 520.00 ft) x 82.00 ft x (29.00 / 30.26 ft)
   (158.50 m / 158.50 m) x 24.99 m  x (8.84 / 9.22 m)

Armament:
      10 - 12.00" / 305 mm 40.0 cal guns - 828.07lbs / 375.61kg shells, 80 per gun
     Breech loading guns in turret on barbette mounts, 1904 Model
     3 x Twin mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
     2 x Twin mounts on sides, forward deck centre
      18 - 3.00" / 76.2 mm 50.0 cal guns - 12.50lbs / 5.67kg shells, 300 per gun
     Quick firing guns in deck mounts, 1893 Model
     12 x Single mounts on sides amidships
      4 raised mounts
     6 x Single mounts on centreline, evenly spread
      6 raised mounts
      Weight of broadside 8,506 lbs / 3,858 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11.0" / 279 mm   342.00 ft / 104.24 m   16.00 ft / 4.88 m
   Ends:   5.00" / 127 mm   178.00 ft / 54.25 m   16.00 ft / 4.88 m
   Upper:   6.00" / 152 mm   342.00 ft / 104.24 m   8.00 ft / 2.44 m
     Main Belt covers 101 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.0" / 330 mm   4.00" / 102 mm      10.0" / 254 mm

   - Armoured deck - single deck: 2.50" / 64 mm For and Aft decks
   Forecastle: 1.00" / 25 mm  Quarter deck: 1.00" / 25 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 4 shafts, 31,750 ihp / 23,686 Kw = 21.50 kts
   Range 7,000nm at 10.00 kts
   Bunker at max displacement = 2,514 tons (90% coal)

Complement:
   873 - 1,136

Cost:
   £2.008 million / $8.033 million

Distribution of weights at normal displacement:
   Armament: 1,362 tons, 6.5 %
   Armour: 6,595 tons, 31.3 %
      - Belts: 3,868 tons, 18.4 %
      - Armament: 1,440 tons, 6.8 %
      - Armour Deck: 1,287 tons, 6.1 %
   Machinery: 4,623 tons, 21.9 %
   Hull, fittings & equipment: 6,084 tons, 28.9 %
   Fuel, ammunition & stores: 2,223 tons, 10.6 %
   Miscellaneous weights: 185 tons, 0.9 %
      - On freeboard deck: 160 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     18,949 lbs / 8,595 Kg = 21.9 x 12.0 " / 305 mm shells or 2.1 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 5.3 ft / 1.6 m
   Roll period: 14.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 67 %
         - Recoil effect (Restricted arc if above 1.00): 0.57
   Seaboat quality  (Average = 1.00): 1.34

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.596 / 0.602
   Length to Beam Ratio: 6.34 : 1
   'Natural speed' for length: 22.80 kts
   Power going to wave formation at top speed: 48 %
   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 (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  25.00 ft / 7.62 m,  25.00 ft / 7.62 m
      - Forward deck:   30.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
      - Aft deck:   35.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
      - Quarter deck:   15.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
      - Average freeboard:      17.80 ft / 5.43 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101.2 %
      - Above water (accommodation/working, high = better): 108.5 %
   Waterplane Area: 31,083 Square feet or 2,888 Square metres
   Displacement factor (Displacement / loading): 93 %
   Structure weight / hull surface area: 147 lbs/sq ft or 718 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.62
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Good seaboat, rides out heavy weather easily

Turrets: APQXY (a la Dreadnought OTL)
Superfiring 3"/50 QF are mounted on tops of main battery turrets
Superfiring main battery turret is A turret

Misc Weight
160t torpedo netting on deck
25t LR wireless above deck

[Darman]

I've been over-doing this particular design a bit much, I'll admit.  Its named Cavendish Mk3 but its really an entirely new vessel.  Not too fast at 21.5kt but I've been upping the armor and its obviously got better guns than the original (12/40 vs 12/35).  If I built her then she'd be a one-off.  Its sort of an in-between vessel between an AC and a BB and be helpful in bringing the speed of the battleline up to 21kts. 

Cavendish, United Kingdom Armored Cruiser laid down 1903 (Engine 1900)

Displacement:
   15,450 t light; 16,060 t standard; 18,045 t normal; 19,633 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (525.00 ft / 525.00 ft) x 70.00 ft x (27.00 / 29.00 ft)
   (160.02 m / 160.02 m) x 21.34 m  x (8.23 / 8.84 m)

Armament:
      4 - 12.00" / 305 mm 40.0 cal guns - 828.07lbs / 375.60kg shells, 60 per gun
     Breech loading guns in turret on barbette mounts, 1903 Model
     2 x Twin mounts on centreline ends, evenly spread
      14 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1903 Model
     14 x Single mounts on sides, evenly spread
      6 hull mounts in casemates- Limited use in heavy seas
      16 - 2.24" / 57.0 mm 40.0 cal guns - 5.42lbs / 2.46kg shells, 250 per gun
     Quick firing guns in deck mounts, 1903 Model
     16 x Single mounts on sides, evenly spread
      Weight of broadside 4,924 lbs / 2,233 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10.0" / 254 mm   355.00 ft / 108.20 m   10.00 ft / 3.05 m
   Ends:   6.00" / 152 mm   170.00 ft / 51.82 m   10.00 ft / 3.05 m
   Upper:   6.00" / 152 mm   355.00 ft / 108.20 m   16.00 ft / 4.88 m
     Main Belt covers 104 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.0" / 254 mm   4.00" / 102 mm      6.00" / 152 mm
   2nd:   4.00" / 102 mm         -               -
   3rd:   0.50" / 13 mm         -               -

   - Armoured deck - single deck: 3.00" / 76 mm For and Aft decks
   Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 13.00" / 330 mm,  Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 4 shafts, 28,641 ihp / 21,366 Kw = 21.50 kts
   Range 7,000nm at 12.00 kts
   Bunker at max displacement = 3,573 tons (90% coal)

Complement:
   778 - 1,012

Cost:
   £1.512 million / $6.048 million

Distribution of weights at normal displacement:
   Armament: 767 tons, 4.2 %
   Armour: 5,501 tons, 30.5 %
      - Belts: 3,340 tons, 18.5 %
      - Armament: 510 tons, 2.8 %
      - Armour Deck: 1,459 tons, 8.1 %
      - Conning Tower: 193 tons, 1.1 %
   Machinery: 4,431 tons, 24.6 %
   Hull, fittings & equipment: 4,538 tons, 25.1 %
   Fuel, ammunition & stores: 2,595 tons, 14.4 %
   Miscellaneous weights: 213 tons, 1.2 %
      - Hull above water: 10 tons
      - On freeboard deck: 178 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     18,270 lbs / 8,287 Kg = 21.1 x 12.0 " / 305 mm shells or 1.9 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 4.6 ft / 1.4 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0.46
   Seaboat quality  (Average = 1.00): 1.50

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.637 / 0.645
   Length to Beam Ratio: 7.50 : 1
   'Natural speed' for length: 22.91 kts
   Power going to wave formation at top speed: 47 %
   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 (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.00 ft / 6.10 m,  17.00 ft / 5.18 m
      - Forward deck:   30.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Aft deck:   35.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Quarter deck:   15.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Average freeboard:      17.24 ft / 5.25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 97.8 %
      - Above water (accommodation/working, high = better): 115.7 %
   Waterplane Area: 27,805 Square feet or 2,583 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 117 lbs/sq ft or 572 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.45
      - 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
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

75t misc weight
25t long-range radio
50t flagship facilities
142t torpedo netting + 20t booms
10t hull above water for 2 fixed bow torpedo tubes plus 8 reloads

Historic Ships: Cavendish, Hawkins, Raleigh, Frobisher, Effingham, Drake
Krupp Cemented Armor
Semi-Armor Piercing Shells
AQY

[Darman]

This is my first attempt at a turbine-engined destroyer. 

Viper, United Kingdom Destroyer laid down 1903 (Engine 1905)

Displacement:
   490 t light; 504 t standard; 543 t normal; 574 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (210.00 ft / 210.00 ft) x 21.00 ft x (10.00 / 10.39 ft)
   (64.01 m / 64.01 m) x 6.40 m  x (3.05 / 3.17 m)

Armament:
      2 - 3.00" / 76.2 mm 50.0 cal guns - 12.50lbs / 5.67kg shells, 250 per gun
     Breech loading guns in deck mounts, 1903 Model
     2 x Single mounts on centreline ends, evenly spread
      Weight of broadside 25 lbs / 11 kg

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 13,829 shp / 10,317 Kw = 28.50 kts
   Range 750nm at 13.00 kts
   Bunker at max displacement = 70 tons (90% coal)
     Caution: Delicate, lightweight machinery

Complement:
   56 - 73

Cost:
   £0.063 million / $0.254 million

Distribution of weights at normal displacement:
   Armament: 5 tons, 1.0 %
   Machinery: 319 tons, 58.7 %
   Hull, fittings & equipment: 151 tons, 27.9 %
   Fuel, ammunition & stores: 53 tons, 9.8 %
   Miscellaneous weights: 14 tons, 2.6 %
      - On freeboard deck: 4 tons
      - Above deck: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     130 lbs / 59 Kg = 9.6 x 3.0 " / 76 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 10.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.08
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has raised forecastle, low quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.431 / 0.438
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 14.49 kts
   Power going to wave formation at top speed: 72 %
   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 (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  16.00 ft / 4.88 m,  14.00 ft / 4.27 m
      - Forward deck:   30.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Aft deck:   35.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Quarter deck:   15.00 %,  9.50 ft / 2.90 m,  9.50 ft / 2.90 m
      - Average freeboard:      11.21 ft / 3.42 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 192.7 %
      - Above water (accommodation/working, high = better): 99.0 %
   Waterplane Area: 2,771 Square feet or 257 Square metres
   Displacement factor (Displacement / loading): 23 %
   Structure weight / hull surface area: 22 lbs/sq ft or 107 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 4.29
      - Overall: 0.62
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate

4t on deck for 2 tubes plus 1 reload each. 
10t above deck for SR wireless

Trial Speed: 31kt

[Darman]

And... I'm toying with the idea of laying down a tender. 

Panther, United Kingdom Tender laid down 1904 (Engine 1905)

Displacement:
   4,400 t light; 4,530 t standard; 6,486 t normal; 8,051 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (375.00 ft / 375.00 ft) x 45.00 ft x (19.00 / 23.02 ft)
   (114.30 m / 114.30 m) x 13.72 m  x (5.79 / 7.02 m)

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 4 shafts, 5,549 ihp / 4,139 Kw = 16.00 kts
   Range 6,750nm at 16.00 kts
   Bunker at max displacement = 3,521 tons (90% coal)

Complement:
   360 - 469

Cost:
   £0.265 million / $1.062 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 796 tons, 12.3 %
   Hull, fittings & equipment: 1,594 tons, 24.6 %
   Fuel, ammunition & stores: 2,086 tons, 32.2 %
   Miscellaneous weights: 2,010 tons, 31.0 %
      - Hull below water: 400 tons
      - Hull above water: 1,200 tons
      - On freeboard deck: 400 tons
      - Above deck: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11,178 lbs / 5,070 Kg = 103.5 x 6 " / 152 mm shells or 1.8 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 1.9 ft / 0.6 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.708 / 0.725
   Length to Beam Ratio: 8.33 : 1
   'Natural speed' for length: 19.36 kts
   Power going to wave formation at top speed: 40 %
   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 (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  21.00 ft / 6.40 m,  20.00 ft / 6.10 m
      - Forward deck:   30.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
      - Aft deck:   35.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
      - Quarter deck:   15.00 %,  20.00 ft / 6.10 m,  20.00 ft / 6.10 m
      - Average freeboard:      20.08 ft / 6.12 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 67.5 %
      - Above water (accommodation/working, high = better): 144.2 %
   Waterplane Area: 13,623 Square feet or 1,266 Square metres
   Displacement factor (Displacement / loading): 180 %
   Structure weight / hull surface area: 62 lbs/sq ft or 301 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 3.13
      - Overall: 1.00
   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
   Excellent seaboat, comfortable, rides out heavy weather easily

10t SR wireless above deck
2,000t misc weight --> 8,000t shipping supported

Cost: 4,400t 
1.1 BP
$4.4