IJN : Pre-1900

[Logi]

I'll start off with a sim of the historical Misaka-class. There was some strength left over so I thickened the main belt armor. The sim was also modified to fit in a Type 1 dock.

I'm not sure how the whole foreign-bought will fly in our scenario so this is a domestic-built class. To justify the design costs and cost of creating the industrial facilities for capital ship construction, I intend to construct 4 of this class.

2 will be constructed, the cost of creating industrial facilities will be handled by earlier ships.

Misaka, Japan Battleship laid down 1899 (Engine 1900)

Displacement:
   12,000 t light; 12,706 t standard; 14,202 t normal; 15,398 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (393.70 ft / 393.70 ft) x 76.12 ft x (26.90 / 28.78 ft)
   (120.00 m / 120.00 m) x 23.20 m  x (8.20 / 8.77 m)

Armament:
      4 - 12.01" / 305 mm 40.0 cal guns - 823.45lbs / 373.51kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1889 Model
     2 x Twin mounts on centreline ends, evenly spread
      14 - 5.98" / 152 mm 45.0 cal guns - 107.25lbs / 48.65kg shells, 200 per gun
     Quick firing guns in casemate mounts, 1889 Model
     14 x Single mounts on sides, evenly spread
      10 hull mounts in casemates- Limited use in all but light seas
      20 - 3.00" / 76.2 mm 39.4 cal guns - 12.80lbs / 5.81kg shells, 400 per gun
     Quick firing guns in casemate mounts, 1889 Model
     20 x Single mounts on sides, evenly spread
      12 - 1.85" / 47.0 mm 40.0 cal guns - 3.01lbs / 1.37kg shells, 800 per gun
     Quick firing guns in deck mounts, 1889 Model
     12 x Single mounts on sides, evenly spread
      Weight of broadside 5,087 lbs / 2,308 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.2" / 311 mm   255.91 ft / 78.00 m   13.12 ft / 4.00 m
   Ends:   4.02" / 102 mm   137.80 ft / 42.00 m   13.12 ft / 4.00 m
   Upper:   4.02" / 102 mm   393.70 ft / 120.00 m   8.20 ft / 2.50 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.0" / 254 mm   7.99" / 203 mm      14.0" / 356 mm
   2nd:   5.98" / 152 mm   2.01" / 51 mm      2.05" / 52 mm
   3rd:   0.39" / 10 mm         -               -
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 2.99" / 76 mm
   Forecastle: 2.99" / 76 mm  Quarter deck: 2.99" / 76 mm

   - Conning towers: Forward 14.02" / 356 mm, Aft 4.02" / 102 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 14,062 ihp / 10,491 Kw = 18.00 kts
   Range 9,000nm at 10.00 kts
   Bunker at max displacement = 2,692 tons (100% coal)

Complement:
   649 - 845

Cost:
   £1.085 million / $4.340 million

Distribution of weights at normal displacement:
   Armament: 826 tons, 5.8 %
      - Guns: 826 tons, 5.8 %
   Armour: 5,073 tons, 35.7 %
      - Belts: 2,615 tons, 18.4 %
      - Armament: 987 tons, 7.0 %
      - Armour Deck: 1,242 tons, 8.7 %
      - Conning Towers: 228 tons, 1.6 %
   Machinery: 2,197 tons, 15.5 %
   Hull, fittings & equipment: 3,904 tons, 27.5 %
   Fuel, ammunition & stores: 2,202 tons, 15.5 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17,445 lbs / 7,913 Kg = 20.5 x 12.0 " / 305 mm shells or 2.5 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 5.2 ft / 1.6 m
   Roll period: 14.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.41
   Seaboat quality  (Average = 1.00): 1.53

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.617 / 0.625
   Length to Beam Ratio: 5.17 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 65
   Bow angle (Positive = bow angles forward): -20.00 degrees
   Stern overhang: -6.56 ft / -2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  21.33 ft / 6.50 m,  14.76 ft / 4.50 m
      - Forward deck:   30.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Aft deck:   35.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Quarter deck:   15.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Average freeboard:      15.29 ft / 4.66 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 75.1 %
      - Above water (accommodation/working, high = better): 96.4 %
   Waterplane Area: 22,258 Square feet or 2,068 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 136 lbs/sq ft or 665 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.30
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Walter]

1900 engines in an 1889 ship?

[Logi]

Based on the historical Fuji-class , this will be the first pre-dreadnoughts of the Japanese navy.
4 will be built (2 more than historical) to justify the design and capital cost.

Fuji, Japan Battleship laid down 1894 (Engine 1890)

Displacement:
   10,000 t light; 10,543 t standard; 11,260 t normal; 11,833 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (393.70 ft / 393.70 ft) x 68.90 ft x (26.57 / 27.64 ft)
   (120.00 m / 120.00 m) x 21.00 m  x (8.10 / 8.42 m)

Armament:
      4 - 12.01" / 305 mm 40.0 cal guns - 829.70lbs / 376.34kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1894 Model
     2 x Twin mounts on centreline ends, evenly spread
      10 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 200 per gun
     Quick firing guns in casemate mounts, 1894 Model
     10 x Single mounts on sides, evenly spread
      10 - 1.85" / 47.0 mm 40.0 cal guns - 3.00lbs / 1.36kg shells, 800 per gun
     Quick firing guns in deck mounts, 1894 Model
     10 x Single mounts on sides, evenly spread
      Weight of broadside 4,429 lbs / 2,009 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14.9" / 378 mm   255.91 ft / 78.00 m   13.12 ft / 4.00 m
   Ends:   4.02" / 102 mm   137.80 ft / 42.00 m   13.12 ft / 4.00 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.98" / 152 mm   4.02" / 102 mm      5.00" / 127 mm
   2nd:   4.02" / 102 mm   2.01" / 51 mm      2.01" / 51 mm
   4th:   0.39" / 10 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 2.52" / 64 mm
   Forecastle: 2.52" / 64 mm  Quarter deck: 2.52" / 64 mm

   - Conning towers: Forward 14.02" / 356 mm, Aft 4.02" / 102 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 11,777 ihp / 8,785 Kw = 18.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 1,290 tons (100% coal)

Complement:
   546 - 710

Cost:
   £0.983 million / $3.933 million

Distribution of weights at normal displacement:
   Armament: 714 tons, 6.3 %
      - Guns: 714 tons, 6.3 %
   Armour: 3,975 tons, 35.3 %
      - Belts: 2,480 tons, 22.0 %
      - Armament: 413 tons, 3.7 %
      - Armour Deck: 887 tons, 7.9 %
      - Conning Towers: 195 tons, 1.7 %
   Machinery: 2,181 tons, 19.4 %
   Hull, fittings & equipment: 3,130 tons, 27.8 %
   Fuel, ammunition & stores: 1,260 tons, 11.2 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11,163 lbs / 5,063 Kg = 12.9 x 12.0 " / 305 mm shells or 1.8 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 4.2 ft / 1.3 m
   Roll period: 14.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.52
   Seaboat quality  (Average = 1.00): 1.51

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.547 / 0.552
   Length to Beam Ratio: 5.71 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): -20.00 degrees
   Stern overhang: -6.56 ft / -2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  16.40 ft / 5.00 m,  13.12 ft / 4.00 m
      - Forward deck:   30.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Aft deck:   35.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Quarter deck:   15.00 %,  13.12 ft / 4.00 m,  14.76 ft / 4.50 m
      - Average freeboard:      13.51 ft / 4.12 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 90.6 %
      - Above water (accommodation/working, high = better): 86.4 %
   Waterplane Area: 18,872 Square feet or 1,753 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 125 lbs/sq ft or 608 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.18
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Logi]

1900 engines in an 1889 ship?

Corrected that in an edit ;)

[snip]

Can you link the 12"/40s that you are using for the 1894 Fuji? The only ones I find on NavWeaps have a design date of 1898 and a service entry date of 1900. Going by the gun table, such a weapon would not be allowed and the historical clause I feel does not apply to 4 years early. Im fine with the guns being used on the 1899 one, because of the historical clause.

[Walter]

BTW, not going for Fuji's armor scheme of 18" belt, 4" upper belt and unarmoread ends?

According to wiki, the 12"/40 guns are the Armstrong Whitworth 12 inch /40 which are indeed designed ine 1898 yet were apparently put into ships that were completed in 1897...

[Logi]

Can you link the 12"/40s that you are using for the 1894 Fuji? The only ones I find on NavWeaps have a design date of 1898 and a service entry date of 1900. Going by the gun table, such a weapon would not be allowed and the historical clause I feel does not apply to 4 years early. I'm fine with the guns being used on the 1899 one, because of the historical clause.

According to wiki...
The main battery of the Fuji class consisted of four Elswick Ordnance Company 40-calibre Type 41 twelve-inch guns mounted in pear-shaped twin-gun barbettes fore and aft of the superstructure
So it seems the Fuji-class historically had the Armstrong guns. That makes the whole date situation quite curious.

BTW, not going for Fuji's armor scheme of 18" belt, 4" upper belt and unarmored ends?

??? I thought I left the upper belt in place and eliminated the end belt, but apparently not. I didn't opt for the 18" belt because it was a bit tonnage heavy. That may change when I revisit this design later in the day, as I'll need to fix that end-upper belt issue.

[snip]

Can you link the 12"/40s that you are using for the 1894 Fuji? The only ones I find on NavWeaps have a design date of 1898 and a service entry date of 1900. Going by the gun table, such a weapon would not be allowed and the historical clause I feel does not apply to 4 years early. I'm fine with the guns being used on the 1899 one, because of the historical clause.

According to wiki...
The main battery of the Fuji class consisted of four Elswick Ordnance Company 40-calibre Type 41 twelve-inch guns mounted in pear-shaped twin-gun barbettes fore and aft of the superstructure
So it seems the Fuji-class historically had the Armstrong guns. That makes the whole date situation quite curious.

From what I am seeing based on the NavWeaps page, the mounts for those guns were designed off of the British ones for there 12"/35. I cannot help but wonder if the ships were originally intended to receive the 12"/35, and were upguned when the 12"/40 became available. I am not sure how I feel about a class of four 12"/40 armed ships laid down in 1894. I also suspect that unless these guns are imported that a 12"/35 would be easier to design and construct. Would you strongly object to using a 12"/35 on these ships?

[Logi]

We discussed and agree to have the ships produced with 12"/35s and then refitted (as per N3 rules) a few years later with 12"/40s.

Fuji, Japan Battleship laid down 1894 (Engine 1890)

Displacement:
   11,000 t light; 11,564 t standard; 12,322 t normal; 12,928 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (393.70 ft / 393.70 ft) x 68.90 ft x (28.22 / 29.32 ft)
   (120.00 m / 120.00 m) x 21.00 m  x (8.60 / 8.94 m)

Armament:
      4 - 12.01" / 305 mm 35.0 cal guns - 829.70lbs / 376.34kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1894 Model
     2 x Twin mounts on centreline ends, evenly spread
      10 - 5.98" / 152 mm 45.0 cal guns - 108.07lbs / 49.02kg shells, 200 per gun
     Quick firing guns in casemate mounts, 1894 Model
     10 x Single mounts on sides, evenly spread
      10 - 1.85" / 47.0 mm 40.0 cal guns - 3.00lbs / 1.36kg shells, 800 per gun
     Quick firing guns in deck mounts, 1894 Model
     10 x Single mounts on sides, evenly spread
      Weight of broadside 4,429 lbs / 2,009 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   18.1" / 460 mm   255.91 ft / 78.00 m   13.12 ft / 4.00 m
   Ends:   Unarmoured
   Upper:   3.94" / 100 mm   255.91 ft / 78.00 m   13.12 ft / 4.00 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   3.94" / 100 mm      4.92" / 125 mm
   2nd:   3.94" / 100 mm   1.97" / 50 mm      1.97" / 50 mm
   4th:   0.39" / 10 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 2.56" / 65 mm
   Forecastle: 2.56" / 65 mm  Quarter deck: 2.56" / 65 mm

   - Conning towers: Forward 13.39" / 340 mm, Aft 3.94" / 100 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 12,504 ihp / 9,328 Kw = 18.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 1,364 tons (100% coal)

Complement:
   584 - 760

Cost:
   £0.998 million / $3.990 million

Distribution of weights at normal displacement:
   Armament: 639 tons, 5.2 %
      - Guns: 639 tons, 5.2 %
   Armour: 4,802 tons, 39.0 %
      - Belts: 3,282 tons, 26.6 %
      - Armament: 406 tons, 3.3 %
      - Armour Deck: 915 tons, 7.4 %
      - Conning Towers: 199 tons, 1.6 %
   Machinery: 2,316 tons, 18.8 %
   Hull, fittings & equipment: 3,244 tons, 26.3 %
   Fuel, ammunition & stores: 1,322 tons, 10.7 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     12,614 lbs / 5,722 Kg = 14.6 x 12.0 " / 305 mm shells or 2.0 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 3.9 ft / 1.2 m
   Roll period: 14.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.53
   Seaboat quality  (Average = 1.00): 1.52

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.564 / 0.569
   Length to Beam Ratio: 5.71 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): -20.00 degrees
   Stern overhang: -6.56 ft / -2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Forward deck:   30.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Aft deck:   35.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Quarter deck:   15.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Average freeboard:      13.12 ft / 4.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 83.8 %
      - Above water (accommodation/working, high = better): 82.1 %
   Waterplane Area: 19,172 Square feet or 1,781 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 125 lbs/sq ft or 608 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 2.36
      - Overall: 1.02
   Adequate machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Logi]

A cruiser based on Naniwa

Naniwa, Japan Cruiser laid down 1884 (Engine 1890)

Displacement:
   3,500 t light; 3,869 t standard; 4,790 t normal; 5,527 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (299.87 ft / 299.87 ft) x 45.93 ft x (21.00 / 23.61 ft)
   (91.40 m / 91.40 m) x 14.00 m  x (6.40 / 7.20 m)

Armament:
      2 - 10.24" / 260 mm 35.0 cal guns - 479.68lbs / 217.58kg shells, 200 per gun
     Breech loading guns in casemate mounts, 1884 Model
     2 x Twin mounts on centreline ends, evenly spread
      6 - 5.98" / 152 mm 35.0 cal guns - 95.83lbs / 43.47kg shells, 450 per gun
     Quick firing guns in casemate mounts, 1884 Model
     6 x Single mounts on sides, evenly spread
      6 - 2.24" / 57.0 mm 40.0 cal guns - 6.00lbs / 2.72kg shells, 600 per gun
     Quick firing guns in deck mounts, 1884 Model
     6 x Single mounts on sides, evenly spread
      40 - 1.00" / 25.4 mm 35.0 cal guns - 0.44lbs / 0.20kg shells, 1,000 per gun
     Machine guns in deck mounts, 1884 Model
     10 x Quad mounts on sides, evenly spread
      40 - 0.43" / 11.0 mm 35.0 cal guns - 0.04lbs / 0.02kg shells, 1,000 per gun
     Breech loading guns in deck mounts, 1884 Model
     4 x 2 row decuple mounts on sides, evenly spread
      Weight of broadside 1,590 lbs / 721 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.46" / 37 mm   0.98" / 25 mm      0.98" / 25 mm
   2nd:   1.46" / 37 mm   0.98" / 25 mm      0.98" / 25 mm
   3rd:   0.55" / 14 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 1.46" / 37 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 8,491 ihp / 6,334 Kw = 18.50 kts
   Range 9,000nm at 10.00 kts
   Bunker at max displacement = 1,658 tons (100% coal)

Complement:
   287 - 374

Cost:
   £0.402 million / $1.607 million

Distribution of weights at normal displacement:
   Armament: 165 tons, 3.4 %
      - Guns: 165 tons, 3.4 %
   Armour: 573 tons, 12.0 %
      - Armament: 54 tons, 1.1 %
      - Armour Deck: 511 tons, 10.7 %
      - Conning Tower: 9 tons, 0.2 %
   Machinery: 1,572 tons, 32.8 %
   Hull, fittings & equipment: 1,189 tons, 24.8 %
   Fuel, ammunition & stores: 1,290 tons, 26.9 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,147 lbs / 1,428 Kg = 6.4 x 10.2 " / 260 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.81
   Metacentric height 4.1 ft / 1.2 m
   Roll period: 9.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.21
   Seaboat quality  (Average = 1.00): 1.35

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.580 / 0.595
   Length to Beam Ratio: 6.53 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   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 %,  16.40 ft / 5.00 m,  13.12 ft / 4.00 m
      - Forward deck:   35.00 %,  13.12 ft / 4.00 m,  9.84 ft / 3.00 m
      - Aft deck:   30.00 %,  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:      11.34 ft / 3.46 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 123.0 %
      - Above water (accommodation/working, high = better): 70.4 %
   Waterplane Area: 9,884 Square feet or 918 Square metres
   Displacement factor (Displacement / loading): 112 %
   Structure weight / hull surface area: 81 lbs/sq ft or 397 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.22
      - 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

[Logi]

Standard Destroyer, Ikazuchi class

28 are to be built by 1900's start.
01 - Ikazuchi
02 - Inazuma
03 - Niji
04 - Akebono
05 - Oboro
06 - Sazanami
07 - Murakumo
08 - Shinonome
09 - Akatsuki
10 - Kasumi
11 - Shirakumo
12 - Asashio
13 - Harusame
14 - Murasame
15 - Hayatori
16 - Asagiri
17 - Ariake

18 - Kamikaze
19 - Asakaze
20 - Harukaze
21 - Tanikaze
22 - Amatsukaze
23 - Yukikaze
24 - Suzukaze
25 - Hatsukaze
26 - Maikaze
27 - Urakaze
28 - Hamakaze

Ikazuchi, Japan Destroyer laid down 1898 (Engine 1900)

Displacement:
   500 t light; 518 t standard; 574 t normal; 619 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229.66 ft / 229.66 ft) x 20.67 ft x (8.53 / 9.03 ft)
   (70.00 m / 70.00 m) x 6.30 m  x (2.60 / 2.75 m)

Armament:
      2 - 2.95" / 75.0 mm 45.0 cal guns - 12.98lbs / 5.89kg shells, 300 per gun
     Breech loading guns in deck mounts, 1898 Model
     2 x Single mounts on centreline, evenly spread
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 300 per gun
     Breech loading guns in casemate mounts, 1898 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 41 lbs / 19 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.20" / 5 mm         -               -
   2nd:   0.20" / 5 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 10,925 ihp / 8,150 Kw = 27.00 kts
   Range 2,200nm at 10.00 kts
   Bunker at max displacement = 101 tons (100% coal)
     Caution: Delicate, lightweight machinery               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 10,996 ihp / 8,203 Kw = 27.00 kts
   Range 2,300nm at 10.00 kts
   Bunker at max displacement = 106 tons (100% coal)
     Caution: Delicate, lightweight machinery

Trial Speed: 30.00 kts

Complement:
   58 - 76

Cost:
   £0.069 million / $0.276 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 1.3 %
      - Guns: 7 tons, 1.3 %
   Armour: 2 tons, 0.4 %
      - Armament: 2 tons, 0.4 %
   Machinery: 353 tons, 61.5 %
   Hull, fittings & equipment: 135 tons, 23.5 %
   Fuel, ammunition & stores: 74 tons, 13.0 %
   Miscellaneous weights: 2 tons, 0.3 %
      - On freeboard deck: 2 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     118 lbs / 54 Kg = 9.2 x 3.0 " / 75 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 9.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.15
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.496 / 0.505
   Length to Beam Ratio: 11.11 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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 %,  11.48 ft / 3.50 m,  9.84 ft / 3.00 m
      - Forward deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   20.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Average freeboard:      9.97 ft / 3.04 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 202.9 %
      - Above water (accommodation/working, high = better): 101.9 %
   Waterplane Area: 3,152 Square feet or 293 Square metres
   Displacement factor (Displacement / loading): 17 %
   Structure weight / hull surface area: 20 lbs/sq ft or 99 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.03
      - Overall: 0.57
   Extremely poor machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

Misc Weight:
2 x 18" single TTs fixed side

[Logi]

Standard Torpedo-boat, Kotaka class

01 - Kotaka
02 - Hayabusa
03 - Manazuru
04 - Chidori
05 - Kari
06 - Kari
07 - Aotoka
08 - Hato
09 - Tsubame
10 - Hibari
11 - Kiji
12 - Sagi
13 - Uzura
14 - Kamome
15 - Hashitaka
16 - Otori
17 - Banjo
18 - Oshima
19 - Uji
20 - Helen
21 - Hatsukari
22 - Tomozuru
23 - Hiyori
24 - Kasasagi

Kotaka, Japan Torpedo Boat laid down 1899 (Engine 1900)

Displacement:
   250 t light; 256 t standard; 290 t normal; 317 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (196.85 ft / 196.85 ft) x 16.40 ft x (6.56 / 7.01 ft)
   (60.00 m / 60.00 m) x 5.00 m  x (2.00 / 2.14 m)

Armament:
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 300 per gun
     Breech loading gun in deck mount, 1899 Model
     1 x Single mount on centreline, forward deck centre
      Weight of broadside 4 lbs / 2 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.20" / 5 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5,433 ihp / 4,053 Kw = 25.00 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 61 tons (100% coal)
     Caution: Delicate, lightweight machinery

Trial Speed: 30.00 kts

Complement:
   34 - 45

Cost:
   £0.034 million / $0.136 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0.3 %
      - Guns: 1 tons, 0.3 %
   Armour: 0 tons, 0.2 %
      - Armament: 0 tons, 0.2 %
   Machinery: 179 tons, 61.6 %
   Hull, fittings & equipment: 67 tons, 23.1 %
   Fuel, ammunition & stores: 40 tons, 13.8 %
   Miscellaneous weights: 3 tons, 1.0 %
      - On freeboard deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     55 lbs / 25 Kg = 14.3 x 2.0 " / 50 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 9.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.479 / 0.490
   Length to Beam Ratio: 12.00 : 1
   'Natural speed' for length: 14.03 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Forward deck:   30.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Aft deck:   30.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Quarter deck:   20.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Average freeboard:      7.87 ft / 2.40 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 199.7 %
      - Above water (accommodation/working, high = better): 77.6 %
   Waterplane Area: 2,111 Square feet or 196 Square metres
   Displacement factor (Displacement / loading): 17 %
   Structure weight / hull surface area: 15 lbs/sq ft or 71 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.61
      - Overall: 0.56
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

3x18" single TTs

[The Rock Doctor]

Naniwa's an interesting concept.  Might have to tinker with an analogue.

[Guinness]

What's the main battery configuration on Naniwa? Is it supposed to be casemates bow and stern?

[snip]

What's the main battery configuration on Naniwa? Is it supposed to be casemates bow and stern?

That looks to be correct. Logi will have to elaborate on exactly how that works on this specific design.