First time I've touched SpringSharp in months. Please do correct me and educate me. I never did get used to the newest version of SS.
This is the IJN Fuji-class battleship, reference (wikipedia) in notes. I know there are many errors.
Quote
Fuji, Empire of Japan Battleship laid down 1896
DESIGN FAILURE: Armour weight too much for hull
Displacement:
11,252 t light; 11,803 t standard; 12,496 t normal; 13,050 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(421.00 ft / 421.00 ft) x 73.00 ft x (26.50 / 27.42 ft)
(128.32 m / 128.32 m) x 22.25 m x (8.08 / 8.36 m)
Armament:
4 - 12.00" / 305 mm 45.0 cal guns - 850.00lbs / 385.55kg shells, 75 per gun
Breech loading guns in turret on barbette mounts, 1896 Model
2 x Twin mounts on centreline ends, evenly spread
4 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 250 per gun
Quick firing guns in casemate mounts, 1896 Model
4 x Single mounts on sides amidships
6 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 250 per gun
Quick firing guns in deck mounts, 1896 Model
6 x Single mounts on sides amidships
6 raised mounts
14 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 150 per gun
Quick firing guns in deck mounts, 1896 Model
14 x Single mounts on sides amidships
14 raised mounts
10 - 1.85" / 47.0 mm 45.0 cal guns - 2.50lbs / 1.13kg shells, 150 per gun
Breech loading guns in deck mounts, 1896 Model
10 x Single mounts on sides amidships
Weight of broadside 4,559 lbs / 2,068 kg
1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.386 t total
In a submerged bow tube
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.386 t each, 1.544 t total
In 4 sets of submerged side tubes
- Belts: Width (max) Length (avg) Height (avg)
Main: 18.0" / 457 mm 273.65 ft / 83.41 m 10.25 ft / 3.12 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
- Protected deck - single deck: 2.50" / 64 mm For and Aft decks
Forecastle: 2.50" / 64 mm Quarter deck: 2.50" / 64 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 12,277 ihp / 9,159 Kw = 18.00 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 1,247 tons (100% coal)
Complement:
590 - 768
Cost:
£1.062 million / $4.246 million
Distribution of weights at normal displacement:
Armament: 823 tons, 6.6 %
- Guns: 821 tons, 6.6 %
- Torpedoes: 2 tons, 0.0 %
Machinery: 2,046 tons, 16.4 %
Hull, fittings & equipment: NaN tons, NaN
Fuel, ammunition & stores: 1,243 tons, 9.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
0 lbs / 0 Kg = 0.0 x 12.0 " / 305 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): NaN
Metacentric height NaN ft / NaN m
Roll period: NaN seconds
Steadiness - As gun platform (Average = 50 %): NaN %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): NaN
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.537 / 0.542
Length to Beam Ratio: 5.77 : 1
'Natural speed' for length: 20.52 kts
Power going to wave formation at top speed: 44 %
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 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m
- Forward deck: 30.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m
- Aft deck: 35.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m
- Quarter deck: 15.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.1 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 21,189 Square feet or 1,969 Square metres
Displacement factor (Displacement / loading): NaN
Structure weight / hull surface area: NaN lbs/sq ft or NaN Kg/sq metre
Hull strength (Relative):
- Cross-sectional: NaN
- Longitudinal: NaN
- Overall: NaN
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is extremely poor
Design Failure: Reduce armour or increase Displacement
http://en.wikipedia.org/wiki/Fuji_class_battleship
Edit: Apparently I forgot freeboard...
With freeboard this time:
Quote
Fuji, Empire of Japan Battleship laid down 1896
Displacement:
11,252 t light; 11,803 t standard; 12,496 t normal; 13,050 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(421.00 ft / 421.00 ft) x 73.00 ft x (26.50 / 27.42 ft)
(128.32 m / 128.32 m) x 22.25 m x (8.08 / 8.36 m)
Armament:
4 - 12.00" / 305 mm 45.0 cal guns - 850.00lbs / 385.55kg shells, 75 per gun
Breech loading guns in turret on barbette mounts, 1896 Model
2 x Twin mounts on centreline ends, evenly spread
4 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 250 per gun
Quick firing guns in casemate mounts, 1896 Model
4 x Single mounts on sides, evenly spread
6 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 250 per gun
Quick firing guns in deck mounts, 1896 Model
6 x Single mounts on sides, evenly spread
6 raised mounts
14 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 150 per gun
Quick firing guns in deck mounts, 1896 Model
14 x Single mounts on sides, evenly spread
14 raised mounts
10 - 1.85" / 47.0 mm 45.0 cal guns - 2.50lbs / 1.13kg shells, 150 per gun
Breech loading guns in deck mounts, 1896 Model
10 x Single mounts on sides, evenly spread
Weight of broadside 4,559 lbs / 2,068 kg
1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.386 t total
In a submerged bow tube
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.386 t each, 1.544 t total
In 4 sets of submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 18.0" / 457 mm 273.65 ft / 83.41 m 10.25 ft / 3.12 m
Ends: Unarmoured
Upper: 4.00" / 102 mm 273.65 ft / 83.41 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 4.00" / 102 mm 14.0" / 356 mm
2nd: 6.00" / 152 mm - -
3rd: 1.00" / 25 mm - -
- Protected deck - single deck: 2.50" / 64 mm For and Aft decks
Forecastle: 2.50" / 64 mm Quarter deck: 2.50" / 64 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 12,277 ihp / 9,159 Kw = 18.00 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 1,247 tons (100% coal)
Complement:
590 - 768
Cost:
£1.062 million / $4.246 million
Distribution of weights at normal displacement:
Armament: 823 tons, 6.6 %
- Guns: 821 tons, 6.6 %
- Torpedoes: 2 tons, 0.0 %
Armour: 4,468 tons, 35.8 %
- Belts: 2,614 tons, 20.9 %
- Armament: 865 tons, 6.9 %
- Armour Deck: 988 tons, 7.9 %
Machinery: 2,046 tons, 16.4 %
Hull, fittings & equipment: 3,915 tons, 31.3 %
Fuel, ammunition & stores: 1,243 tons, 9.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
16,436 lbs / 7,455 Kg = 19.0 x 12.0 " / 305 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 4.8 ft / 1.5 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 98 %
- Recoil effect (Restricted arc if above 1.00): 0.66
Seaboat quality (Average = 1.00): 1.96
Hull form characteristics:
Hull has low forecastle, low quarterdeck ,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.537 / 0.542
Length to Beam Ratio: 5.77 : 1
'Natural speed' for length: 20.52 kts
Power going to wave formation at top speed: 44 %
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 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Forward deck: 30.00 %, 19.00 ft / 5.79 m, 19.00 ft / 5.79 m
- Aft deck: 35.00 %, 19.00 ft / 5.79 m, 19.00 ft / 5.79 m
- Quarter deck: 15.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Average freeboard: 17.25 ft / 5.26 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.1 %
- Above water (accommodation/working, high = better): 130.0 %
Waterplane Area: 21,189 Square feet or 1,969 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 135 lbs/sq ft or 658 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.62
- 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, can fire her guns in the heaviest weather
http://en.wikipedia.org/wiki/Fuji_class_battleship
Few comments:
The guns should be L40 not L45. This will save you some composite strength
You can have the 6" guns grouped under one section, and just do two separate mounting setups.
The deck would be an armored deck as opposed to a protected one. I dont think this changes much about the design strength-wise
That is it for now. Not a bad design.
The diagram showed the armored deck as leaving the top two decks open, does that make a difference?
Also, the original design calls for the 26 47mm guns (3pdrs and 2 1/2pdrs). Would it make more sense to run with just one variant (I was thinking the 3pdr variant) and use fewer guns?
The freeboard, judging by the pictures, should be level or relatively so, fore and aft, no bow or stern cutaways like you have.
From the Wiki article on the armor:
QuoteArmour
The armour scheme of the Fuji class ships was similar to that used by the Royal Sovereigns except that the Japanese ships used superior
Harvey armour with the same thicknesses. The waterline main belt was 8 feet (2.4 m) high, 3 feet (0.9 m) of which was above the waterline at
normal load, and had a maximum thickness of 18 inches (457 mm). It reduced to 16 inches (406 mm) then 14 inches (356 mm) at the ends past the two barbettes; above it was a 4-inch (102 mm) strake of armor that ran between the barbettes. They were 14 inches thick outside the upper armor belt and reduced to 9 inches (229 mm) behind the upper belt. Diagonal bulkheads connected the barbettes to the side armor; the forward bulkhead was 14 inches thick while the rear bulkhead was 12 inches (305 mm) thick. The armour of the casemates and the barbette hoods had a maximum thickness of six inches while the conning tower was protected by 14 inches of armour. The deck armour was 2.5 inches (64 mm) thick and met the sides of the ship at the top of the main armour belt.[4][5]
Nice to have all the detail. Looks like you need end armor, the height of the belt should be reduced to 8', and the turret armor should be lightened to 6". Interesting that the description and the diagram from Brassey's don't really agree on the end armor, though.
I agree the freeboard should be level. I was trying to figure out how the main guns could be at the main deck level in covered barbettes (described as turrets) along with the casemated guns. Barbette armor I used the diagram which said 14 inches and then a 4in upper belt. I wasn't managing to get an upper belt until I added the additional freeboard. Or maybe I was doing something wrong.
I changed the freeboard and the height of the belt armor. The upper belt armor height I didn't change. I left the turret armor the same for now.
Quote
Fuji, Empire of Japan Battleship laid down 1896
Displacement:
11,263 t light; 11,803 t standard; 12,496 t normal; 13,050 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(421.00 ft / 421.00 ft) x 73.00 ft x (26.50 / 27.42 ft)
(128.32 m / 128.32 m) x 22.25 m x (8.08 / 8.36 m)
Armament:
4 - 12.00" / 305 mm 40.0 cal guns - 828.07lbs / 375.60kg shells, 75 per gun
Breech loading guns in turret on barbette mounts, 1896 Model
2 x Twin mounts on centreline ends, evenly spread
4 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
Quick firing guns in casemate mounts, 1896 Model
4 x Single mounts on sides, evenly spread
6 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
Quick firing guns in deck mounts, 1896 Model
6 x Single mounts on sides, evenly spread
6 raised mounts
14 - 1.85" / 47.0 mm 40.0 cal guns - 3.04lbs / 1.38kg shells, 150 per gun
Quick firing guns in deck mounts, 1896 Model
14 x Single mounts on sides, evenly spread
14 raised mounts
10 - 1.85" / 47.0 mm 40.0 cal guns - 3.04lbs / 1.38kg shells, 150 per gun
Breech loading guns in deck mounts, 1896 Model
10 x Single mounts on sides, evenly spread
Weight of broadside 4,420 lbs / 2,005 kg
1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.386 t total
In a submerged bow tube
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.386 t each, 1.544 t total
In 4 sets of submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 18.0" / 457 mm 273.65 ft / 83.41 m 8.00 ft / 2.44 m
Ends: Unarmoured
Upper: 4.00" / 102 mm 273.65 ft / 83.41 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 4.00" / 102 mm 14.0" / 356 mm
2nd: 6.00" / 152 mm - -
3rd: 1.00" / 25 mm - -
- Armoured deck - single deck: 2.50" / 64 mm For and Aft decks
Forecastle: 2.50" / 64 mm Quarter deck: 2.50" / 64 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 12,277 ihp / 9,159 Kw = 18.00 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 1,247 tons (100% coal)
Complement:
590 - 768
Cost:
£1.003 million / $4.011 million
Distribution of weights at normal displacement:
Armament: 696 tons, 5.6 %
- Guns: 694 tons, 5.6 %
- Torpedoes: 2 tons, 0.0 %
Armour: 3,818 tons, 30.6 %
- Belts: 2,125 tons, 17.0 %
- Armament: 705 tons, 5.6 %
- Armour Deck: 988 tons, 7.9 %
Machinery: 2,046 tons, 16.4 %
Hull, fittings & equipment: 4,703 tons, 37.6 %
Fuel, ammunition & stores: 1,232 tons, 9.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,742 lbs / 7,140 Kg = 18.2 x 12.0 " / 305 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.35
Metacentric height 5.3 ft / 1.6 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 82 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.65
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.537 / 0.542
Length to Beam Ratio: 5.77 : 1
'Natural speed' for length: 20.52 kts
Power going to wave formation at top speed: 44 %
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 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Forward deck: 30.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Aft deck: 35.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Quarter deck: 15.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Average freeboard: 14.36 ft / 4.38 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 78.2 %
- Above water (accommodation/working, high = better): 98.2 %
Waterplane Area: 21,189 Square feet or 1,969 Square metres
Displacement factor (Displacement / loading): 114 %
Structure weight / hull surface area: 163 lbs/sq ft or 798 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.17
- Longitudinal: 2.75
- Overall: 1.27
Hull space for machinery, storage, compartmentation is excellent
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
http://en.wikipedia.org/wiki/Fuji_class_battleship
Here is the second Japanese battleship
ShikishimaQuote
Shikishima, Empire of Japan Battleship laid down 1899
Displacement:
13,204 t light; 14,089 t standard; 15,000 t normal; 15,729 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(438.00 ft / 438.00 ft) x 75.50 ft x (27.00 / 28.07 ft)
(133.50 m / 133.50 m) x 23.01 m x (8.23 / 8.55 m)
Armament:
4 - 12.00" / 305 mm 40.0 cal guns - 850.00lbs / 385.55kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1899 Model
2 x Twin mounts on centreline ends, evenly spread
14 - 6.00" / 152 mm 40.0 cal guns - 100.00lbs / 45.36kg shells, 250 per gun
Quick firing guns in casemate mounts, 1899 Model
8 x Single mounts on sides amidships
6 x Single mounts on sides amidships
6 raised mounts
20 - 3.00" / 76.2 mm 45.0 cal guns - 12.50lbs / 5.67kg shells, 750 per gun
Quick firing guns in deck mounts, 1899 Model
20 x Single mounts on sides amidships
20 raised mounts
4 - 1.85" / 47.0 mm 45.0 cal guns - 2.50lbs / 1.13kg shells, 150 per gun
Quick firing guns in deck mounts, 1899 Model
4 x Single mounts on sides amidships
4 raised mounts
Weight of broadside 5,060 lbs / 2,295 kg
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.431 t each, 1.724 t total
In 4 sets of submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 9.00" / 229 mm 220.00 ft / 67.06 m 8.00 ft / 2.44 m
Ends: 4.00" / 102 mm 153.28 ft / 46.72 m 8.00 ft / 2.44 m
64.72 ft / 19.73 m Unarmoured ends
Upper: 6.00" / 152 mm 220.00 ft / 67.06 m 8.00 ft / 2.44 m
Main Belt covers 77 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 3.00" / 76 mm 10.0" / 254 mm
2nd: 6.00" / 152 mm - -
- Armoured deck - multiple decks: 2.50" / 64 mm For and Aft decks
Forecastle: 2.50" / 64 mm Quarter deck: 2.50" / 64 mm
- Conning towers: Forward 14.00" / 356 mm, Aft 0.00" / 0 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 16,960 ihp / 12,652 Kw = 19.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 1,640 tons (100% coal)
Complement:
677 - 881
Cost:
£1.189 million / $4.756 million
Distribution of weights at normal displacement:
Armament: 799 tons, 5.3 %
- Guns: 797 tons, 5.3 %
- Torpedoes: 2 tons, 0.0 %
Armour: 3,370 tons, 22.5 %
- Belts: 1,431 tons, 9.5 %
- Armament: 640 tons, 4.3 %
- Armour Deck: 1,115 tons, 7.4 %
- Conning Tower: 183 tons, 1.2 %
Machinery: 2,692 tons, 17.9 %
Hull, fittings & equipment: 6,343 tons, 42.3 %
Fuel, ammunition & stores: 1,796 tons, 12.0 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
17,918 lbs / 8,127 Kg = 20.7 x 12.0 " / 305 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.41
Metacentric height 5.9 ft / 1.8 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0.33
Seaboat quality (Average = 1.00): 1.45
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.588 / 0.593
Length to Beam Ratio: 5.80 : 1
'Natural speed' for length: 20.93 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 %, 14.65 ft / 4.47 m, 14.65 ft / 4.47 m
- Forward deck: 30.00 %, 14.65 ft / 4.47 m, 14.65 ft / 4.47 m
- Aft deck: 35.00 %, 14.65 ft / 4.47 m, 14.65 ft / 4.47 m
- Quarter deck: 15.00 %, 14.65 ft / 4.47 m, 14.65 ft / 4.47 m
- Average freeboard: 14.65 ft / 4.47 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.8 %
- Above water (accommodation/working, high = better): 98.6 %
Waterplane Area: 23,916 Square feet or 2,222 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 197 lbs/sq ft or 964 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.47
- Longitudinal: 3.03
- Overall: 1.58
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
http://en.wikipedia.org/wiki/Shikishima_class_battleship
On Shikishima, don't use the turret roof thickness as the straight-up value for "other gunhouse" armor, that will give you too low a value for the side and rear armor. You're probably better off going with 6" armor here, and reducing the turret fronts to 10" here.
On the revised Fuji, you still need your 14" end armor, which you have enough strength to add it looks like.
On both: I realize that the entries (and the Brits themselves) called the 6" guns "quick firing", but in SS terms, they're not since they are separate loading (shell is loaded and rammed, then the propellant casing is loaded), they're breach loaders.
What it looks like is happening is that the change from compound (iron and steel) armor or Harvey process armor is happening at the same time a size increase is happening. The Shikishimas are carrying less thickness of armor (because Harvey process armor is much more resistant to penetration) over a relatively similar area, on a bigger hull.
I messed something up. Not sure what. It says the armor is too heavy but even when i eliminated all the armor it still said it was too heavy.
Quote
Fuji, Empire of Japan Battleship laid down 1896
DESIGN FAILURE: Armour weight too much for hull
Displacement:
11,253 t light; 11,807 t standard; 12,500 t normal; 13,054 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(421.00 ft / 421.00 ft) x 73.00 ft x (26.50 / 27.42 ft)
(128.32 m / 128.32 m) x 22.25 m x (8.08 / 8.36 m)
Armament:
4 - 12.00" / 305 mm 40.0 cal guns - 828.07lbs / 375.61kg shells, 75 per gun
Breech loading guns in turret on barbette mounts, 1896 Model
2 x Twin mounts on centreline ends, evenly spread
10 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
Breech loading guns in casemate mounts, 1896 Model
4 x Single mounts on sides, evenly spread
6 x Single mounts on sides, evenly spread
6 raised mounts
14 - 1.85" / 47.0 mm 40.0 cal guns - 3.20lbs / 1.45kg shells, 750 per gun
Quick firing guns in deck mounts, 1896 Model
14 x Single mounts on sides, evenly spread
14 raised mounts
10 - 1.85" / 47.0 mm 40.0 cal guns - 2.50lbs / 1.13kg shells, 150 per gun
Quick firing guns in deck mounts, 1896 Model
10 x Single mounts on sides, evenly spread
10 raised mounts
Weight of broadside 4,417 lbs / 2,004 kg
1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.386 t total
In a submerged bow tube
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.386 t each, 1.544 t total
In 4 sets of submerged side tubes
- Belts: Width (max) Length (avg) Height (avg)
Main: 18.0" / 457 mm 273.65 ft / 83.41 m 8.00 ft / 2.44 m
Ends: 14.0" / 356 mm 147.33 ft / 44.91 m 8.00 ft / 2.44 m
Upper: 4.00" / 102 mm 273.65 ft / 83.41 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length
- Armoured deck - single deck: 2.50" / 64 mm For and Aft decks
Forecastle: 2.50" / 64 mm Quarter deck: 2.50" / 64 mm
- Conning towers: Forward 14.00" / 356 mm, Aft 0.00" / 0 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 12,280 ihp / 9,161 Kw = 18.00 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 1,247 tons (100% coal)
Complement:
590 - 768
Cost:
£1.002 million / $4.010 million
Distribution of weights at normal displacement:
Armament: 677 tons, 5.4 %
- Guns: 675 tons, 5.4 %
- Torpedoes: 2 tons, 0.0 %
Machinery: 2,047 tons, 16.4 %
Hull, fittings & equipment: NaN tons, NaN
Fuel, ammunition & stores: 1,247 tons, 10.0 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
0 lbs / 0 Kg = 0.0 x 12.0 " / 305 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): NaN
Metacentric height NaN ft / NaN m
Roll period: NaN seconds
Steadiness - As gun platform (Average = 50 %): NaN %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): NaN
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.537 / 0.542
Length to Beam Ratio: 5.77 : 1
'Natural speed' for length: 20.52 kts
Power going to wave formation at top speed: 44 %
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 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Forward deck: 30.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Aft deck: 35.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Quarter deck: 15.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Average freeboard: 14.36 ft / 4.38 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 78.3 %
- Above water (accommodation/working, high = better): 98.2 %
Waterplane Area: 21,193 Square feet or 1,969 Square metres
Displacement factor (Displacement / loading): NaN
Structure weight / hull surface area: NaN lbs/sq ft or NaN Kg/sq metre
Hull strength (Relative):
- Cross-sectional: NaN
- Longitudinal: NaN
- Overall: NaN
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Design Failure: Reduce armour or increase Displacement
http://en.wikipedia.org/wiki/Fuji_class_battleship
1899 design.
Asahi ("
Rising Sun")-class pre-dreadnought
Quote
Asahi, Empire of Japan Battleship laid down 1899
Displacement:
12,918 t light; 13,797 t standard; 15,400 t normal; 16,683 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(425.25 ft / 425.25 ft) x 75.00 ft x (27.25 / 29.14 ft)
(129.62 m / 129.62 m) x 22.86 m x (8.31 / 8.88 m)
Armament:
4 - 12.00" / 305 mm 40.0 cal guns - 850.00lbs / 385.55kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1899 Model
2 x Twin mounts on centreline ends, evenly spread
14 - 6.00" / 152 mm 45.0 cal guns - 100.00lbs / 45.36kg shells, 250 per gun
Breech loading guns in casemate mounts, 1899 Model
8 x Single mounts on sides, evenly spread
6 x Single mounts on sides, evenly spread
6 raised mounts
20 - 3.00" / 76.2 mm 45.0 cal guns - 12.50lbs / 5.67kg shells, 500 per gun
Quick firing guns in deck mounts, 1899 Model
20 x Single mounts on sides, evenly spread
16 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 750 per gun
Quick firing guns in deck mounts, 1899 Model
16 x Single mounts on sides, evenly spread
16 raised mounts
Weight of broadside 5,101 lbs / 2,314 kg
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.431 t each, 1.724 t total
In 4 sets of submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 9.00" / 229 mm 250.00 ft / 76.20 m 10.39 ft / 3.17 m
Ends: 4.00" / 102 mm 148.82 ft / 45.36 m 10.39 ft / 3.17 m
26.43 ft / 8.06 m Unarmoured ends
Main Belt covers 90 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 6.00" / 152 mm 10.0" / 254 mm
2nd: 6.00" / 152 mm 2.00" / 51 mm -
- Armoured deck - multiple decks: 2.50" / 64 mm For and Aft decks
Forecastle: 2.50" / 64 mm Quarter deck: 2.50" / 64 mm
- Conning towers: Forward 14.00" / 356 mm, Aft 0.00" / 0 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 14,297 ihp / 10,665 Kw = 18.00 kts
Range 9,000nm at 10.00 kts
Bunker at max displacement = 2,886 tons (100% coal)
Complement:
690 - 898
Cost:
£1.133 million / $4.533 million
Distribution of weights at normal displacement:
Armament: 815 tons, 5.3 %
- Guns: 814 tons, 5.3 %
- Torpedoes: 2 tons, 0.0 %
Armour: 3,365 tons, 21.9 %
- Belts: 1,301 tons, 8.4 %
- Armament: 770 tons, 5.0 %
- Armour Deck: 1,108 tons, 7.2 %
- Conning Tower: 187 tons, 1.2 %
Machinery: 2,269 tons, 14.7 %
Hull, fittings & equipment: 6,468 tons, 42.0 %
Fuel, ammunition & stores: 2,482 tons, 16.1 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
20,856 lbs / 9,460 Kg = 24.1 x 12.0 " / 305 mm shells or 2.7 torpedoes
Stability (Unstable if below 1.00): 1.44
Metacentric height 6.1 ft / 1.9 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0.32
Seaboat quality (Average = 1.00): 1.51
Hull form characteristics:
Hull has raised forecastle,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.620 / 0.628
Length to Beam Ratio: 5.67 : 1
'Natural speed' for length: 20.62 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 %, 15.50 ft / 4.72 m, 14.50 ft / 4.42 m
- Forward deck: 30.00 %, 14.44 ft / 4.40 m, 14.44 ft / 4.40 m
- Aft deck: 35.00 %, 14.44 ft / 4.40 m, 14.44 ft / 4.40 m
- Quarter deck: 15.00 %, 14.44 ft / 4.40 m, 14.44 ft / 4.40 m
- Average freeboard: 14.53 ft / 4.43 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 72.5 %
- Above water (accommodation/working, high = better): 94.7 %
Waterplane Area: 23,769 Square feet or 2,208 Square metres
Displacement factor (Displacement / loading): 135 %
Structure weight / hull surface area: 203 lbs/sq ft or 991 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.53
- Longitudinal: 3.20
- Overall: 1.64
Hull space for machinery, storage, compartmentation is excellent
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
http://en.wikipedia.org/wiki/Japanese_battleship_Asahi
plus 4 coincidental rangefinders (line of sight)
On revised Fuji, check your gun armor, since that section is not showing up at all in the report, that might be where the problem is.
On the Asahi , this site http://www.clydesite.co.uk/clydebuilt/viewship.asp?id=5173 (http://www.clydesite.co.uk/clydebuilt/viewship.asp?id=5173) gives it a range of 9000 miles at 10 knots, which might use up some of that excess strength you have.
Quote from: KWorld on September 06, 2012, 05:59:45 AM
On revised Fuji, check your gun armor, since that section is not showing up at all in the report, that might be where the problem is.
Doesn't seem to work.
Quote
On the Asahi , this site http://www.clydesite.co.uk/clydebuilt/viewship.asp?id=5173 (http://www.clydesite.co.uk/clydebuilt/viewship.asp?id=5173) gives it a range of 9000 miles at 10 knots, which might use up some of that excess strength you have.
Already has a 9,000nm range
Quote from: Darman on September 06, 2012, 06:53:32 AM
Quote from: KWorld on September 06, 2012, 05:59:45 AM
On revised Fuji, check your gun armor, since that section is not showing up at all in the report, that might be where the problem is.
Doesn't seem to work.
Post the .sship file, maybe I can find the problem.
QuoteQuote
On the Asahi , this site http://www.clydesite.co.uk/clydebuilt/viewship.asp?id=5173 (http://www.clydesite.co.uk/clydebuilt/viewship.asp?id=5173) gives it a range of 9000 miles at 10 knots, which might use up some of that excess strength you have.
Already has a 9,000nm range
Whoops, I was apparently remembering
Shikishima's range as
Asahi's.
Here it is
Oh wait, this is it.
Works fine when I load it, here's the report:
Fuji, Empire of Japan Battleship laid down 1896
Displacement:
11,734 t light; 12,297 t standard; 13,008 t normal; 13,576 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(421.00 ft / 421.00 ft) x 73.00 ft x (26.50 / 27.42 ft)
(128.32 m / 128.32 m) x 22.25 m x (8.08 / 8.36 m)
Armament:
4 - 12.00" / 305 mm 40.0 cal guns - 828.08lbs / 375.61kg shells, 75 per gun
Breech loading guns in turret on barbette mounts, 1896 Model
2 x Twin mounts on centreline ends, evenly spread
10 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
Breech loading guns in casemate mounts, 1896 Model
4 x Single mounts on sides, evenly spread
6 x Single mounts on sides, evenly spread
6 raised mounts
14 - 1.85" / 47.0 mm 40.0 cal guns - 3.20lbs / 1.45kg shells, 750 per gun
Quick firing guns in deck mounts, 1896 Model
14 x Single mounts on sides, evenly spread
14 raised mounts
10 - 1.85" / 47.0 mm 40.0 cal guns - 2.49lbs / 1.13kg shells, 150 per gun
Quick firing guns in deck mounts, 1896 Model
10 x Single mounts on sides, evenly spread
10 raised mounts
Weight of broadside 4,417 lbs / 2,004 kg
Main Torpedoes
1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.386 t total
submerged bow tube
2nd Torpedoes
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.386 t each, 1.544 t total
submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 18.0" / 457 mm 273.65 ft / 83.41 m 8.00 ft / 2.44 m
Ends: 14.0" / 356 mm 147.33 ft / 44.91 m 8.00 ft / 2.44 m
Upper: 4.00" / 102 mm 273.65 ft / 83.41 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.00" / 152 mm 4.00" / 102 mm 10.0" / 254 mm
2nd: 6.00" / 152 mm - -
- Armoured deck - single deck:
For and Aft decks: 2.50" / 64 mm
Forecastle: 2.50" / 64 mm Quarter deck: 2.50" / 64 mm
- Conning towers: Forward 14.00" / 356 mm, Aft 14.00" / 356 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 12,667 ihp / 9,450 Kw = 18.00 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 1,279 tons (100% coal)
Complement:
608 - 791
Cost:
£1.028 million / $4.113 million
Distribution of weights at normal displacement:
Armament: 679 tons, 5.2 %
- Guns: 675 tons, 5.2 %
- Weapons: 4 tons, 0.0 %
Armour: 4,665 tons, 35.9 %
- Belts: 2,734 tons, 21.0 %
- Armament: 590 tons, 4.5 %
- Armour Deck: 1,009 tons, 7.8 %
- Conning Towers: 334 tons, 2.6 %
Machinery: 2,111 tons, 16.2 %
Hull, fittings & equipment: 4,279 tons, 32.9 %
Fuel, ammunition & stores: 1,273 tons, 9.8 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
16,215 lbs / 7,355 Kg = 18.8 x 12.0 " / 305 mm shells or 8.0 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 5.0 ft / 1.5 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 74 %
- Recoil effect (Restricted arc if above 1.00): 0.37
Seaboat quality (Average = 1.00): 1.49
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.559 / 0.564
Length to Beam Ratio: 5.77 : 1
'Natural speed' for length: 20.52 kts
Power going to wave formation at top speed: 45 %
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 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Forward deck: 30.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Aft deck: 35.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Quarter deck: 15.00 %, 14.36 ft / 4.38 m, 14.36 ft / 4.38 m
- Average freeboard: 14.36 ft / 4.38 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76.9 %
- Above water (accommodation/working, high = better): 97.3 %
Waterplane Area: 21,630 Square feet or 2,009 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 147 lbs/sq ft or 715 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.05
- Longitudinal: 2.18
- Overall: 1.13
Excellent 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
http://en.wikipedia.org/wiki/Fuji_class_battleship
the little bugger.... I'll try loading it fresh. My SpringSharp program may be glitching if I move from file to file without closing the whole thing down too often.
This is my first effort at a protected cruiser and it failed utterly. I seem to recall seeing that to simulate a flat and sloped deck armor you used the upper belt? The sloped deck armor was 5in and the flat deck armor was 2in.
QuoteYoshino, Empire of Japan Protected Cruiser laid down 1892
DESIGN FAILURE: Overall load weight too much for hull
Displacement:
3,339 t light; 3,633 t standard; 4,500 t normal; 5,193 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(360.00 ft / 360.00 ft) x 46.50 ft x (17.00 / 19.07 ft)
(109.73 m / 109.73 m) x 14.17 m x (5.18 / 5.81 m)
Armament:
4 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
Breech loading guns in deck mounts, 1892 Model
2 x Single mounts on centreline ends, evenly spread
2 x Single mounts on sides, forward deck forward
8 - 4.70" / 119 mm 45.0 cal guns - 52.35lbs / 23.75kg shells, 500 per gun
Breech loading guns in casemate mounts, 1892 Model
8 x Single mounts on sides, evenly spread
22 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 750 per gun
Quick firing guns in deck mounts, 1892 Model
22 x Single mounts on sides, evenly spread
22 raised mounts
Weight of broadside 903 lbs / 410 kg
1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.334 t total
In a submerged bow tube
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.334 t each, 1.336 t total
In 4 sets of submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured
Upper: 4.00" / 102 mm 234.00 ft / 71.32 m 8.00 ft / 2.44 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.00" / 127 mm - -
- Armoured deck - multiple decks: 2.00" / 51 mm For and Aft decks
Forecastle: 2.00" / 51 mm Quarter deck: 2.00" / 51 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 17,655 ihp / 13,171 Kw = 23.00 kts
Range 9,000nm at 10.00 kts
Bunker at max displacement = 1,560 tons (100% coal)
Complement:
274 - 357
Cost:
£0.578 million / $2.311 million
Distribution of weights at normal displacement:
Armament: 137 tons, 3.0 %
- Guns: 135 tons, 3.0 %
- Torpedoes: 2 tons, 0.0 %
Armour: 811 tons, 18.0 %
- Belts: 317 tons, 7.0 %
- Armament: 56 tons, 1.3 %
- Armour Deck: 437 tons, 9.7 %
Machinery: 2,995 tons, 66.6 %
Hull, fittings & equipment: -604 tons, -13.4 %
Fuel, ammunition & stores: 1,161 tons, 25.8 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
0 lbs / 0 Kg = 0.0 x 6.0 " / 152 mm shells or 0.1 torpedoes
Stability (Unstable if below 1.00): 3.38
Metacentric height 9.1 ft / 2.8 m
Roll period: 6.5 seconds
Steadiness - As gun platform (Average = 50 %): 81 %
- Recoil effect (Restricted arc if above 1.00): 0.09
Seaboat quality (Average = 1.00): 1.61
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.553 / 0.569
Length to Beam Ratio: 7.74 : 1
'Natural speed' for length: 18.97 kts
Power going to wave formation at top speed: 57 %
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 %, 17.00 ft / 5.18 m, 13.28 ft / 4.05 m
- Forward deck: 30.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Aft deck: 35.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Quarter deck: 15.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Average freeboard: 13.58 ft / 4.14 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 230.6 %
- Above water (accommodation/working, high = better): 108.2 %
Waterplane Area: 11,721 Square feet or 1,089 Square metres
Displacement factor (Displacement / loading): 60 %
Structure weight / hull surface area: -28 lbs/sq ft or -138 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: -0.36
- Longitudinal: -0.65
- Overall: -0.56
Hull space for machinery, storage, compartmentation is extremely poor
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
http://en.wikipedia.org/wiki/Japanese_cruiser_Yoshino
Well, 66.6% Machinery seem to be a "bit" overkill. 25% fuel, too.
The rules here for a protected cruiser was to use an upper belt of 5' height to simulate the sloping sides of the protective deck.
Yeah, for 1892, this design is too fast and far too long-legged for a ship of it's smallish size. At least for SS3.
QuoteYoshino, Empire of Japan Protected Cruiser laid down 1892
Displacement:
3,602 t light; 3,868 t standard; 4,500 t normal; 5,006 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(360.00 ft / 360.00 ft) x 46.50 ft x (17.00 / 18.51 ft)
(109.73 m / 109.73 m) x 14.17 m x (5.18 / 5.64 m)
Armament:
4 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
Breech loading guns in deck mounts, 1892 Model
2 x Single mounts on centreline ends, evenly spread
2 x Single mounts on sides, forward deck forward
8 - 4.70" / 119 mm 45.0 cal guns - 52.35lbs / 23.75kg shells, 500 per gun
Breech loading guns in casemate mounts, 1892 Model
8 x Single mounts on sides, evenly spread
Weight of broadside 833 lbs / 378 kg
1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.334 t total
In a submerged bow tube
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.334 t each, 1.336 t total
In 4 sets of submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured
Upper: 1.75" / 44 mm 234.00 ft / 71.32 m 5.00 ft / 1.52 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.00" / 127 mm - -
2nd: 2.00" / 51 mm - -
- Armoured deck - single deck: 1.00" / 25 mm For and Aft decks
Forecastle: 1.75" / 44 mm Quarter deck: 1.00" / 25 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 10,121 ihp / 7,550 Kw = 20.00 kts
Range 6,500nm at 10.00 kts
Bunker at max displacement = 1,138 tons (100% coal)
Complement:
274 - 357
Cost:
£0.417 million / $1.666 million
Distribution of weights at normal displacement:
Armament: 121 tons, 2.7 %
- Guns: 119 tons, 2.6 %
- Torpedoes: 2 tons, 0.0 %
Armour: 403 tons, 9.0 %
- Belts: 87 tons, 1.9 %
- Armament: 83 tons, 1.8 %
- Armour Deck: 233 tons, 5.2 %
Machinery: 1,807 tons, 40.2 %
Hull, fittings & equipment: 1,271 tons, 28.3 %
Fuel, ammunition & stores: 898 tons, 19.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,885 lbs / 1,309 Kg = 26.7 x 6.0 " / 152 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.76
Metacentric height 4.0 ft / 1.2 m
Roll period: 9.8 seconds
Steadiness - As gun platform (Average = 50 %): 86 %
- Recoil effect (Restricted arc if above 1.00): 0.16
Seaboat quality (Average = 1.00): 1.71
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.553 / 0.565
Length to Beam Ratio: 7.74 : 1
'Natural speed' for length: 18.97 kts
Power going to wave formation at top speed: 49 %
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 %, 17.00 ft / 5.18 m, 13.28 ft / 4.05 m
- Forward deck: 30.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Aft deck: 35.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Quarter deck: 15.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Average freeboard: 13.58 ft / 4.14 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 143.5 %
- Above water (accommodation/working, high = better): 108.2 %
Waterplane Area: 11,721 Square feet or 1,089 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 73 lbs/sq ft or 358 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.69
- Overall: 1.02
Hull space for machinery, storage, compartmentation is cramped
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
http://en.wikipedia.org/wiki/Japanese_cruiser_Yoshino
Judging by the Wiki entry, you could reduce the coal capacity to 1000 tons. That will allow you to use a less full hull, which would bring the tonnage down.
Here is the updated
YoshinoQuote
Yoshino, Empire of Japan Protected Cruiser laid down 1892
Displacement:
3,649 t light; 3,915 t standard; 4,500 t normal; 4,968 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(360.00 ft / 360.00 ft) x 46.50 ft x (17.00 / 18.40 ft)
(109.73 m / 109.73 m) x 14.17 m x (5.18 / 5.61 m)
Armament:
4 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
Breech loading guns in deck mounts, 1892 Model
2 x Single mounts on centreline ends, evenly spread
2 x Single mounts on sides, forward deck forward
8 - 4.70" / 119 mm 45.0 cal guns - 52.35lbs / 23.75kg shells, 500 per gun
Breech loading guns in casemate mounts, 1892 Model
8 x Single mounts on sides, evenly spread
Weight of broadside 833 lbs / 378 kg
1 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedo - 0.334 t total
In a submerged bow tube
4 - 18.0" / 457 mm, 12.00 ft / 3.66 m torpedoes - 0.334 t each, 1.336 t total
In 4 sets of submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured
Upper: 1.75" / 44 mm 234.00 ft / 71.32 m 5.00 ft / 1.52 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.00" / 127 mm - -
2nd: 2.00" / 51 mm - -
- Armoured deck - single deck: 1.00" / 25 mm For and Aft decks
Forecastle: 1.75" / 44 mm Quarter deck: 1.00" / 25 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 10,121 ihp / 7,550 Kw = 20.00 kts
Range 6,000nm at 10.00 kts
Bunker at max displacement = 1,053 tons (100% coal)
Complement:
274 - 357
Cost:
£0.418 million / $1.673 million
Distribution of weights at normal displacement:
Armament: 121 tons, 2.7 %
- Guns: 119 tons, 2.6 %
- Torpedoes: 2 tons, 0.0 %
Armour: 403 tons, 9.0 %
- Belts: 87 tons, 1.9 %
- Armament: 83 tons, 1.8 %
- Armour Deck: 233 tons, 5.2 %
Machinery: 1,807 tons, 40.2 %
Hull, fittings & equipment: 1,318 tons, 29.3 %
Fuel, ammunition & stores: 851 tons, 18.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,866 lbs / 1,300 Kg = 26.5 x 6.0 " / 152 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.74
Metacentric height 3.9 ft / 1.2 m
Roll period: 9.9 seconds
Steadiness - As gun platform (Average = 50 %): 85 %
- Recoil effect (Restricted arc if above 1.00): 0.16
Seaboat quality (Average = 1.00): 1.70
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.553 / 0.565
Length to Beam Ratio: 7.74 : 1
'Natural speed' for length: 18.97 kts
Power going to wave formation at top speed: 49 %
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 %, 17.00 ft / 5.18 m, 13.28 ft / 4.05 m
- Forward deck: 30.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Aft deck: 35.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Quarter deck: 15.00 %, 13.28 ft / 4.05 m, 13.28 ft / 4.05 m
- Average freeboard: 13.58 ft / 4.14 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 143.5 %
- Above water (accommodation/working, high = better): 108.2 %
Waterplane Area: 11,721 Square feet or 1,089 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 76 lbs/sq ft or 370 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.75
- Overall: 1.05
Hull space for machinery, storage, compartmentation is cramped
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
http://en.wikipedia.org/wiki/Japanese_cruiser_Yoshino
Suma-class protected cruiser
Quote
Suma, Empire of Japan Protected Cruiser laid down 1896
Displacement:
2,555 t light; 2,679 t standard; 3,000 t normal; 3,257 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(307.00 ft / 307.00 ft) x 41.00 ft x (15.00 / 16.02 ft)
(93.57 m / 93.57 m) x 12.50 m x (4.57 / 4.88 m)
Armament:
2 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 250 per gun
Breech loading guns in deck mounts, 1896 Model
1 x Single mount on centreline, forward deck forward
1 x Single mount on centreline, aft deck aft
6 - 4.70" / 119 mm 45.0 cal guns - 52.35lbs / 23.75kg shells, 150 per gun
Breech loading guns in deck mounts, 1896 Model
6 x Single mounts on sides amidships
6 raised mounts
10 - 1.85" / 47.0 mm 45.0 cal guns - 3.19lbs / 1.45kg shells, 500 per gun
Quick firing guns in deck mounts, 1896 Model
8 x Single mounts on sides amidships
8 raised mounts
2 x Single mounts on centreline ends, evenly spread
2 raised mounts
Weight of broadside 553 lbs / 251 kg
2 - 14.0" / 356 mm, 12.00 ft / 3.66 m torpedoes - 0.243 t each, 0.486 t total
In 1 sets of deck mounted carriage/fixed tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured
Upper: 2.00" / 51 mm 199.55 ft / 60.82 m 5.00 ft / 1.52 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.50" / 114 mm 1.00" / 25 mm -
- Armoured deck - single deck: 1.00" / 25 mm For and Aft decks
Forecastle: 1.00" / 25 mm Quarter deck: 1.00" / 25 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 8,394 ihp / 6,262 Kw = 20.00 kts
Range 4,500nm at 10.00 kts
Bunker at max displacement = 578 tons (100% coal)
Complement:
202 - 263
Cost:
£0.303 million / $1.213 million
Distribution of weights at normal displacement:
Armament: 83 tons, 2.8 %
- Guns: 83 tons, 2.8 %
- Torpedoes: 0 tons, 0.0 %
Armour: 271 tons, 9.0 %
- Belts: 85 tons, 2.8 %
- Armament: 22 tons, 0.7 %
- Armour Deck: 165 tons, 5.5 %
Machinery: 1,345 tons, 44.8 %
Hull, fittings & equipment: 856 tons, 28.5 %
Fuel, ammunition & stores: 445 tons, 14.8 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,667 lbs / 756 Kg = 15.4 x 6.0 " / 152 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.66
Metacentric height 3.1 ft / 0.9 m
Roll period: 9.8 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0.20
Seaboat quality (Average = 1.00): 1.44
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.556 / 0.565
Length to Beam Ratio: 7.49 : 1
'Natural speed' for length: 17.52 kts
Power going to wave formation at top speed: 54 %
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 %, 12.50 ft / 3.81 m, 12.50 ft / 3.81 m
- Forward deck: 30.00 %, 12.50 ft / 3.81 m, 12.50 ft / 3.81 m
- Aft deck: 35.00 %, 12.50 ft / 3.81 m, 12.50 ft / 3.81 m
- Quarter deck: 15.00 %, 12.50 ft / 3.81 m, 12.50 ft / 3.81 m
- Average freeboard: 12.50 ft / 3.81 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 154.3 %
- Above water (accommodation/working, high = better): 103.8 %
Waterplane Area: 8,835 Square feet or 821 Square metres
Displacement factor (Displacement / loading): 91 %
Structure weight / hull surface area: 65 lbs/sq ft or 317 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.93
- Overall: 1.04
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Deck-mounted torpedo tubes located forward