Columbiad Republic Fleet

[KWorld]

The following is called a BC because it's faster than normal for a battleship, it otherwise follows the sim rules (6 x 305mm, reciprocating engines, coal & oil fuel, etc).  Could be considered a bigger, more heavily armored cousin of IJN Tsukuba.


Unk-BC05, Unknown Unk-BC05 laid down 1905

Displacement:
   17,398 t light; 18,249 t standard; 19,928 t normal; 21,272 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (547.90 ft / 541.34 ft) x 78.74 ft x (31.17 / 32.79 ft)
   (167.00 m / 165.00 m) x 24.00 m  x (9.50 / 9.99 m)

Armament:
      6 - 12.01" / 305 mm 45.0 cal guns - 873.08lbs / 396.02kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1905 Model
     3 x Twin mounts on centreline, evenly spread
      16 - 5.91" / 150 mm 45.0 cal guns - 100.31lbs / 45.50kg shells, 180 per gun
     Breech loading guns in casemate mounts, 1905 Model
     16 x Single mounts on sides, evenly spread
      6 hull mounts in casemates- Limited use in all but light seas
      8 - 0.43" / 11.0 mm 90.0 cal guns - 0.05lbs / 0.02kg shells, 2,000 per gun
     Machine guns in deck mounts, 1905 Model
     8 x Single mounts on side ends, evenly spread
      8 double raised mounts
      Weight of broadside 6,844 lbs / 3,104 kg
      Main Torpedoes
      4 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.827 t each, 3.309 t total
   submerged side tubes
      2nd Torpedoes
      12 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.827 t each, 9.927 t total
   below water reloads

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11.8" / 300 mm   426.51 ft / 130.00 m   12.30 ft / 3.75 m
   Ends:   5.91" / 150 mm     98.10 ft / 29.90 m   12.30 ft / 3.75 m
     16.73 ft / 5.10 m Unarmoured ends
   Upper:   5.91" / 150 mm   108.27 ft / 33.00 m   8.20 ft / 2.50 m
     Main Belt covers 121 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1.18" / 30 mm   362.53 ft / 110.50 m   21.10 ft / 6.43 m
   Beam between torpedo bulkheads 78.74 ft / 24.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.6" / 320 mm   7.09" / 180 mm      12.6" / 320 mm
   2nd:   3.94" / 100 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 9.84" / 250 mm, Aft 5.91" / 150 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 38,022 ihp / 28,364 Kw = 23.00 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 3,023 tons (90% coal)

Complement:
   838 - 1,090

Cost:
   £1.941 million / $7.762 million

Distribution of weights at normal displacement:
   Armament: 1,199 tons, 6.0 %
      - Guns: 1,180 tons, 5.9 %
      - Weapons: 19 tons, 0.1 %
   Armour: 5,831 tons, 29.3 %
      - Belts: 3,141 tons, 15.8 %
      - Torpedo bulkhead: 334 tons, 1.7 %
      - Armament: 1,040 tons, 5.2 %
      - Armour Deck: 1,067 tons, 5.4 %
      - Conning Towers: 249 tons, 1.3 %
   Machinery: 5,456 tons, 27.4 %
   Hull, fittings & equipment: 4,902 tons, 24.6 %
   Fuel, ammunition & stores: 2,530 tons, 12.7 %
   Miscellaneous weights: 10 tons, 0.1 %
      - Hull below water: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     12,498 lbs / 5,669 Kg = 14.4 x 12.0 " / 305 mm shells or 3.1 torpedoes
   Stability (Unstable if below 1.00): 1.24
   Metacentric height 5.1 ft / 1.6 m
   Roll period: 14.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.34
   Seaboat quality  (Average = 1.00): 1.10

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.525 / 0.533
   Length to Beam Ratio: 6.88 : 1
   'Natural speed' for length: 23.27 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 64
   Bow angle (Positive = bow angles forward): 5.00 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 %,  22.15 ft / 6.75 m,  18.04 ft / 5.50 m
      - Forward deck:   20.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
      - Aft deck:   45.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   15.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Average freeboard:      13.45 ft / 4.10 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 115.9 %
      - Above water (accommodation/working, high = better): 81.7 %
   Waterplane Area: 29,061 Square feet or 2,700 Square metres
   Displacement factor (Displacement / loading): 90 %
   Structure weight / hull surface area: 136 lbs/sq ft or 663 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.36
      - Overall: 1.01
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

Miscellaneous weight accommodates the 12 450mm carried.

[Carthaginian]

She's going to be wet as the dickens aft!
Less than 10' freeboard will basically ensure that water is rolling up over the main deck in any heavy weather.

Also, the casemates are only that high off the water- meaning that unless you're in glass-smooth seas, the gunners on the 6" battery will each need a pair of swim goggles... and maybe a snorkel. They would be virtually useless in any sea state, much like the lower tier of casemates in the older British AC's. Heck, the ship's own wave action might cause them to take water!

If you have 1.01 Composite Strength, you might as well fix the fact that the end belts don't make it all the way to the ends of the hull.

You have played it REALLY close on weights- the ship has no room to improve during refits.

Just a few of the things I see ATM.

[KWorld]

The 6 hull casemates are in the raised forward hull section, so they're a bit higher off the water than it may look (they're why there's an upper belt, it's installed to protect them).  The other casemates are in the superstructure at main deck level, so they're higher, but certainly not way up in the air.

Yeah, I forgot to extend the belts the last time I played with the hull & belt length.


I'm not really expecting to add a lot of weight in refits to ships like these, they're intended to be used until they're replaced.

[Carthaginian]

Ok... six 6" guns in 108' is possible; however, the way that you have the armor done, there is no hoist armor nor are there any separating bulkheads to prevent splinters or flash from going across the gun deck. This also means that the guns on deck simply have armored faces, without separating bulkheads or overhead protection. They will be, basically, deathtraps in combat.

It's always wise to leave a bit of room to grow- I made the mistake of not including any in my last nation's ships early on... and paid for it very heavily later on.

[KWorld]

Casemates aren't nice places in combat, just like the gundeck on a man-o-war wasn't if a shot came through.  However, here's a revised design....

Unk-BC05, Unknown Unk-BC05 laid down 1905

Displacement:
   17,712 t light; 18,567 t standard; 19,999 t normal; 21,146 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (547.90 ft / 541.34 ft) x 78.74 ft x (31.28 / 32.66 ft)
   (167.00 m / 165.00 m) x 24.00 m  x (9.53 / 9.95 m)

Armament:
      6 - 12.01" / 305 mm 45.0 cal guns - 881.85lbs / 400.00kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1905 Model
     3 x Twin mounts on centreline, evenly spread
      16 - 5.91" / 150 mm 45.0 cal guns - 100.31lbs / 45.50kg shells, 180 per gun
     Breech loading guns in casemate mounts, 1905 Model
     16 x Single mounts on sides, evenly spread
      6 hull mounts in casemates- Limited use in all but light seas
      8 - 0.43" / 11.0 mm 90.0 cal guns - 0.05lbs / 0.02kg shells, 2,000 per gun
     Machine guns in deck mounts, 1905 Model
     8 x Single mounts on side ends, evenly spread
      8 double raised mounts
      Weight of broadside 6,896 lbs / 3,128 kg
      Main Torpedoes
      4 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.827 t each, 3.309 t total
   submerged side tubes
      2nd Torpedoes
      12 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.827 t each, 9.927 t total
   below water reloads

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11.8" / 300 mm   410.11 ft / 125.00 m   12.30 ft / 3.75 m
   Ends:   5.91" / 150 mm   130.91 ft / 39.90 m   12.30 ft / 3.75 m
   Upper:   5.91" / 150 mm   108.27 ft / 33.00 m   8.20 ft / 2.50 m
     Main Belt covers 117 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1.97" / 50 mm   362.53 ft / 110.50 m   21.10 ft / 6.43 m
   Beam between torpedo bulkheads 78.74 ft / 24.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.6" / 320 mm   7.09" / 180 mm      11.8" / 300 mm
   2nd:   5.91" / 150 mm         -         3.94" / 100 mm

   - Armoured deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 9.84" / 250 mm, Aft 5.91" / 150 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 38,105 ihp / 28,427 Kw = 23.00 kts
   Range 7,500nm at 10.00 kts
   Bunker at max displacement = 2,579 tons (90% coal)

Complement:
   840 - 1,093

Cost:
   £1.953 million / $7.813 million

Distribution of weights at normal displacement:
   Armament: 1,199 tons, 6.0 %
      - Guns: 1,180 tons, 5.9 %
      - Weapons: 19 tons, 0.1 %
   Armour: 6,132 tons, 30.7 %
      - Belts: 3,152 tons, 15.8 %
      - Torpedo bulkhead: 557 tons, 2.8 %
      - Armament: 1,144 tons, 5.7 %
      - Armour Deck: 1,029 tons, 5.1 %
      - Conning Towers: 250 tons, 1.2 %
   Machinery: 5,468 tons, 27.3 %
   Hull, fittings & equipment: 4,904 tons, 24.5 %
   Fuel, ammunition & stores: 2,288 tons, 11.4 %
   Miscellaneous weights: 10 tons, 0.1 %
      - Hull below water: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     13,322 lbs / 6,043 Kg = 15.4 x 12.0 " / 305 mm shells or 3.2 torpedoes
   Stability (Unstable if below 1.00): 1.27
   Metacentric height 5.4 ft / 1.6 m
   Roll period: 14.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.37
   Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.525 / 0.532
   Length to Beam Ratio: 6.88 : 1
   'Natural speed' for length: 23.27 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 5.00 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 %,  24.61 ft / 7.50 m,  19.69 ft / 6.00 m
      - Forward deck:   20.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   45.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Quarter deck:   15.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Average freeboard:      15.16 ft / 4.62 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 115.7 %
      - Above water (accommodation/working, high = better): 92.3 %
   Waterplane Area: 29,061 Square feet or 2,700 Square metres
   Displacement factor (Displacement / loading): 89 %
   Structure weight / hull surface area: 138 lbs/sq ft or 675 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.50
      - Overall: 1.01
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Miscellaneous weight accommodates the 12 450mm carried.

[KWorld]

And a 1907 torpedo boat.

Unk-TB07, Unknown Unk-TB07 laid down 1907

Displacement:
   436 t light; 449 t standard; 472 t normal; 491 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (214.76 ft / 213.25 ft) x 19.69 ft x (9.84 / 10.10 ft)
   (65.46 m / 65.00 m) x 6.00 m  x (3.00 / 3.08 m)

Armament:
      3 - 2.76" / 70.0 mm 40.0 cal guns - 10.03lbs / 4.55kg shells, 200 per gun
     Quick firing guns in deck mounts, 1907 Model
     2 x Single mounts on centreline ends, evenly spread
      1 raised mount - superfiring
      4 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 1,200 per gun
     Machine guns in deck mounts, 1907 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 30 lbs / 14 kg
      Main Torpedoes
      4 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.739 t each, 2.954 t total
   In 2 sets of deck mounted centre rotating tubes
      2nd Torpedoes
      4 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.897 t each, 3.587 t total
   below water reloads

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 15,125 shp / 11,283 Kw = 30.00 kts
   Range 1,000nm at 10.00 kts
   Bunker at max displacement = 43 tons (90% coal)
     Caution: Delicate, lightweight machinery

Complement:
   49 - 65

Cost:
   £0.055 million / $0.221 million

Distribution of weights at normal displacement:
   Armament: 16 tons, 3.3 %
      - Guns: 5 tons, 1.1 %
      - Weapons: 10 tons, 2.2 %
   Machinery: 276 tons, 58.5 %
   Hull, fittings & equipment: 140 tons, 29.6 %
   Fuel, ammunition & stores: 36 tons, 7.7 %
   Miscellaneous weights: 4 tons, 0.8 %
      - On freeboard deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     93 lbs / 42 Kg = 8.9 x 2.8 " / 70 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.18
   Seaboat quality  (Average = 1.00): 0.91

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.405
   Length to Beam Ratio: 10.83 : 1
   'Natural speed' for length: 14.60 kts
   Power going to wave formation at top speed: 71 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): 5.00 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 %,  17.22 ft / 5.25 m,  15.58 ft / 4.75 m
      - Forward deck:   14.00 %,  15.58 ft / 4.75 m,  15.58 ft / 4.75 m
      - Aft deck:   51.00 %,  7.38 ft / 2.25 m,  7.38 ft / 2.25 m
      - Quarter deck:   15.00 %,  7.38 ft / 2.25 m,  7.38 ft / 2.25 m
      - Average freeboard:      10.30 ft / 3.14 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 199.0 %
      - Above water (accommodation/working, high = better): 63.9 %
   Waterplane Area: 2,584 Square feet or 240 Square metres
   Displacement factor (Displacement / loading): 25 %
   Structure weight / hull surface area: 22 lbs/sq ft or 106 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 3.83
      - Overall: 0.61
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Miscellaneous weight accommodates the 4 450mm torpedoes loaded in the tubes.

[Carthaginian]

Aside from 1.) the fact that you haven't accounted for all your torpedoes 2.) you have three guns in two single mounts and 3.) the fact that she has legs shorter than a Munchkin cat... not too bad.

If you fix those things, though, she'll be legal... and therefore better. ;)

[KWorld]

Well, range isn't something I associate with TBs very much.  However, this one is a bit better.

Unk-TB07, Unknown Unk-TB07 laid down 1907

Displacement:
   411 t light; 424 t standard; 472 t normal; 510 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (214.76 ft / 213.25 ft) x 19.69 ft x (9.84 / 10.36 ft)
   (65.46 m / 65.00 m) x 6.00 m  x (3.00 / 3.16 m)

Armament:
      3 - 2.76" / 70.0 mm 45.0 cal guns - 10.55lbs / 4.79kg shells, 200 per gun
     Quick firing guns in deck mounts, 1907 Model
     3 x Single mounts on centreline ends, majority forward
      1 raised mount - superfiring
      4 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 1,200 per gun
     Machine guns in deck mounts, 1907 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 32 lbs / 14 kg
      Main Torpedoes
      4 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.739 t each, 2.954 t total
   In 2 sets of deck mounted centre rotating tubes

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 13,044 shp / 9,731 Kw = 29.00 kts
   Range 1,400nm at 12.00 kts
   Bunker at max displacement = 86 tons (90% coal)
     Caution: Delicate, lightweight machinery

Complement:
   49 - 65

Cost:
   £0.054 million / $0.216 million

Distribution of weights at normal displacement:
   Armament: 12 tons, 2.6 %
      - Guns: 6 tons, 1.3 %
      - Weapons: 6 tons, 1.3 %
   Machinery: 270 tons, 57.3 %
   Hull, fittings & equipment: 123 tons, 26.0 %
   Fuel, ammunition & stores: 61 tons, 12.9 %
   Miscellaneous weights: 6 tons, 1.3 %
      - On freeboard deck: 6 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     97 lbs / 44 Kg = 9.2 x 2.8 " / 70 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 59 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 0.88

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.411
   Length to Beam Ratio: 10.83 : 1
   'Natural speed' for length: 14.60 kts
   Power going to wave formation at top speed: 70 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 5.00 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 %,  17.22 ft / 5.25 m,  14.76 ft / 4.50 m
      - Forward deck:   14.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Aft deck:   51.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Quarter deck:   15.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Average freeboard:      9.55 ft / 2.91 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 188.6 %
      - Above water (accommodation/working, high = better): 58.2 %
   Waterplane Area: 2,584 Square feet or 240 Square metres
   Displacement factor (Displacement / loading): 29 %
   Structure weight / hull surface area: 21 lbs/sq ft or 101 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.82
      - Overall: 0.59
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Miscellaneous weight accommodates the 4 450mm torpedoes loaded in the tubes.

[KWorld]

And a heavy AC.

Unk-AC00, Unknown Unk-AC00 laid down 1900

Displacement:
   13,450 t light; 14,086 t standard; 14,998 t normal; 15,728 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (531.50 ft / 524.93 ft) x 65.62 ft x (29.03 / 30.12 ft)
   (162.00 m / 160.00 m) x 20.00 m  x (8.85 / 9.18 m)

Armament:
      6 - 9.84" / 250 mm 45.0 cal guns - 480.81lbs / 218.09kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1900 Model
     3 x Twin mounts on centreline, evenly spread
      14 - 5.91" / 150 mm 45.0 cal guns - 100.31lbs / 45.50kg shells, 180 per gun
     Breech loading guns in casemate mounts, 1900 Model
     14 x Single mounts on sides, evenly spread
      6 hull mounts in casemates- Limited use in all but light seas
      20 - 1.38" / 35.0 mm 45.0 cal guns - 1.32lbs / 0.60kg shells, 200 per gun
     Quick firing guns in deck mounts, 1895 Model
     4 x 5-gun mounts on sides, aft deck forward
      4 double raised mounts
      Weight of broadside 4,316 lbs / 1,958 kg
      Main Torpedoes
      4 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.579 t each, 2.318 t total
   submerged side tubes
      2nd Torpedoes
      12 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.579 t each, 6.954 t total
   below water reloads

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   442.91 ft / 135.00 m   12.30 ft / 3.75 m
   Ends:   3.94" / 100 mm     81.99 ft / 24.99 m   12.30 ft / 3.75 m
   Upper:   3.94" / 100 mm   104.99 ft / 32.00 m   8.20 ft / 2.50 m
     Main Belt covers 130 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.6" / 270 mm   7.09" / 180 mm      9.84" / 250 mm
   2nd:   3.94" / 100 mm         -         3.94" / 100 mm

   - Armoured deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 0.00" / 0 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 9.84" / 250 mm, Aft 3.94" / 100 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 31,839 ihp / 23,752 Kw = 23.00 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 1,642 tons (95% coal)

Complement:
   676 - 880

Cost:
   £1.504 million / $6.016 million

Distribution of weights at normal displacement:
   Armament: 879 tons, 5.9 %
      - Guns: 865 tons, 5.8 %
      - Weapons: 13 tons, 0.1 %
   Armour: 3,764 tons, 25.1 %
      - Belts: 2,057 tons, 13.7 %
      - Armament: 774 tons, 5.2 %
      - Armour Deck: 752 tons, 5.0 %
      - Conning Towers: 181 tons, 1.2 %
   Machinery: 4,950 tons, 33.0 %
   Hull, fittings & equipment: 3,845 tons, 25.6 %
   Fuel, ammunition & stores: 1,548 tons, 10.3 %
   Miscellaneous weights: 13 tons, 0.1 %
      - Hull below water: 13 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,860 lbs / 3,565 Kg = 16.5 x 9.8 " / 250 mm shells or 2.6 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 3.8 ft / 1.2 m
   Roll period: 14.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 69 %
         - Recoil effect (Restricted arc if above 1.00): 0.43
   Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.525 / 0.531
   Length to Beam Ratio: 8.00 : 1
   'Natural speed' for length: 22.91 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 5.00 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 %,  21.33 ft / 6.50 m,  18.86 ft / 5.75 m
      - Forward deck:   20.00 %,  18.86 ft / 5.75 m,  18.86 ft / 5.75 m
      - Aft deck:   45.00 %,  10.66 ft / 3.25 m,  10.66 ft / 3.25 m
      - Quarter deck:   15.00 %,  10.66 ft / 3.25 m,  10.66 ft / 3.25 m
      - Average freeboard:      14.14 ft / 4.31 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 129.3 %
      - Above water (accommodation/working, high = better): 87.3 %
   Waterplane Area: 23,484 Square feet or 2,182 Square metres
   Displacement factor (Displacement / loading): 89 %
   Structure weight / hull surface area: 117 lbs/sq ft or 572 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.37
      - Overall: 1.02
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Good seaboat, rides out heavy weather easily

Note: the 35mm guns are similar to the multi-barrel Hotchkiss revolving guns.

Miscellaneous weight accounts for the 12 450mm torpedoes carried.

[Carthaginian]

Ships as powerful as this one make me think about only one thing:
"God, I am terrible at designing armored cruisers."

Nice ship, far better than anything I'm playing with on a similar tonnage.

[Jefgte]

Nice AC, well balanced.

I note the survivability...low...just 3565kg for 15000t
The Defender class, fron Nova Francia is 7900t but the survivability is 4133kg.

Question:
If these 2 ships are engaged in a battle, did the survivabilities enter in the Modos calculation ?

Jef 

[Carthaginian]

Yes, they will. I will have to say that some simming of real life ships is necessary to solidify the process, but the survivability numbers will be very important.

[KWorld]

All other things being equal, the survivability number has merit.  HOWEVER, other things are rarely equal.  If I drop my cruisers speed to 17 knots, with no other changes at all, the survivability number goes up to 9667 kg.  If I then increase it's range to 25000 nm, to use up the excess strength it now has, the survivability number goes up even more, to 10,168 kg.  So I'd be wary of assigning much value to it, even though it is caveated by "(Non-critical penetrating hits needed to sink ship)".

[KWorld]

Here's a tweaked version of the AC-00 design.  It lost a little weight, added a few guns and some armor.

Unk-AC00, Unknown Unk-AC00 laid down 1900

Displacement:
   13,360 t light; 14,008 t standard; 14,917 t normal; 15,644 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (531.50 ft / 524.93 ft) x 65.62 ft x (28.87 / 29.96 ft)
   (162.00 m / 160.00 m) x 20.00 m  x (8.80 / 9.13 m)

Armament:
      6 - 9.84" / 250 mm 45.0 cal guns - 480.81lbs / 218.09kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1900 Model
     3 x Twin mounts on centreline, evenly spread
      14 - 5.91" / 150 mm 45.0 cal guns - 100.31lbs / 45.50kg shells, 180 per gun
     Breech loading guns in casemate mounts, 1900 Model
     14 x Single mounts on sides, evenly spread
      6 hull mounts in casemates- Limited use in all but light seas
      6 - 2.76" / 70.0 mm 40.0 cal guns - 10.03lbs / 4.55kg shells, 400 per gun
     Quick firing guns in deck mounts, 1897 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      20 - 1.38" / 35.0 mm 45.0 cal guns - 1.32lbs / 0.60kg shells, 200 per gun
     Quick firing guns in deck mounts, 1900 Model
     4 x 5-gun mounts on side ends, evenly spread
      4 double raised mounts
      Weight of broadside 4,376 lbs / 1,985 kg
      Main Torpedoes
      4 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.579 t each, 2.318 t total
   submerged side tubes
      2nd Torpedoes
      12 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.579 t each, 6.954 t total
   below water reloads

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   8.66" / 220 mm   459.32 ft / 140.00 m   12.30 ft / 3.75 m
   Ends:   3.94" / 100 mm     65.58 ft / 19.99 m   12.30 ft / 3.75 m
   Upper:   3.94" / 100 mm   104.99 ft / 32.00 m   8.20 ft / 2.50 m
     Main Belt covers 135 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.6" / 270 mm   7.09" / 180 mm      9.84" / 250 mm
   2nd:   3.94" / 100 mm         -         3.94" / 100 mm
   3rd:   0.39" / 10 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 9.84" / 250 mm, Aft 3.94" / 100 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 31,731 ihp / 23,672 Kw = 23.00 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 1,636 tons (95% coal)

Complement:
   674 - 877

Cost:
   £1.501 million / $6.005 million

Distribution of weights at normal displacement:
   Armament: 889 tons, 6.0 %
      - Guns: 876 tons, 5.9 %
      - Weapons: 13 tons, 0.1 %
   Armour: 3,737 tons, 25.0 %
      - Belts: 2,260 tons, 15.2 %
      - Armament: 779 tons, 5.2 %
      - Armour Deck: 517 tons, 3.5 %
      - Conning Towers: 180 tons, 1.2 %
   Machinery: 4,933 tons, 33.1 %
   Hull, fittings & equipment: 3,788 tons, 25.4 %
   Fuel, ammunition & stores: 1,556 tons, 10.4 %
   Miscellaneous weights: 13 tons, 0.1 %
      - Hull below water: 13 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,741 lbs / 3,511 Kg = 16.2 x 9.8 " / 250 mm shells or 2.6 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 3.8 ft / 1.1 m
   Roll period: 14.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.44
   Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.525 / 0.531
   Length to Beam Ratio: 8.00 : 1
   'Natural speed' for length: 22.91 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   Bow angle (Positive = bow angles forward): 5.00 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 %,  22.15 ft / 6.75 m,  18.86 ft / 5.75 m
      - Forward deck:   20.00 %,  18.86 ft / 5.75 m,  18.86 ft / 5.75 m
      - Aft deck:   45.00 %,  10.66 ft / 3.25 m,  10.66 ft / 3.25 m
      - Quarter deck:   15.00 %,  10.66 ft / 3.25 m,  10.66 ft / 3.25 m
      - Average freeboard:      14.21 ft / 4.33 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 129.9 %
      - Above water (accommodation/working, high = better): 87.5 %
   Waterplane Area: 23,484 Square feet or 2,182 Square metres
   Displacement factor (Displacement / loading): 88 %
   Structure weight / hull surface area: 116 lbs/sq ft or 566 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.36
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Note: the 35mm guns are similar to the multi-barrel Hotchkiss revolving guns.

Miscellaneous weight accounts for the 12 450mm torpedoes carried.

[Carthaginian]

All other things being equal, the survivability number has merit.  HOWEVER, other things are rarely equal.  If I drop my cruisers speed to 17 knots, with no other changes at all, the survivability number goes up to 9667 kg.  If I then increase it's range to 25000 nm, to use up the excess strength it now has, the survivability number goes up even more, to 10,168 kg.  So I'd be wary of assigning much value to it, even though it is caveated by "(Non-critical penetrating hits needed to sink ship)".

Dropping the speed increases expected subdivision- large engines require large engine rooms, meaning they are easier to flood and present proportionately more danger to survivability when flooded.

Increasing range increases subdivision as well- the fuel tanks are sealed on all sides and aren't likely to flood the interior of the ship unless it is a 'critical hit.'

That's why the survivability figure is a pretty good indicator of survivability; that's also why I'll be using it to determine how survivable our ships are.