Logi's Design Studies

[Tanthalas]

I think your right TC, I have read all the books in the Master and Comander series, and there are several referances to that.

[TexanCowboy]

I think the best example is that time they battle the French off of India with the China fleet, and since the weather was rough to leeward, they couldn't use the lower battery.

[Logi]

Welcome the SS Wang Chung, the Springsharp counterpart to the RL SS Dakotan by the USA (American-Hawaii Route) and later sold to the Russians. This is the pre-war version.

SS Wang Chung, RRC Cargo Ship laid down 1920

Displacement:
   8,792 t light; 8,985 t standard; 9,646 t normal; 10,175 t full load

Dimensions: Length overall / water x beam x draught
   428.75 ft / 407.83 ft x 53.50 ft x 23.00 ft (normal load)
   130.68 m / 124.31 m x 16.31 m  x 7.01 m

Machinery:
   Oil fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 5,466 ihp / 4,078 Kw = 15.00 kts
   Range 5,900nm at 12.00 kts
   Bunker at max displacement = 1,190 tons

Complement:
   486 - 632

Cost:
   £0.833 million / $3.334 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 321 tons, 3.3 %
   Hull, fittings & equipment: 1,921 tons, 19.9 %
   Fuel, ammunition & stores: 854 tons, 8.9 %
   Miscellaneous weights: 6,550 tons, 67.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,429 lbs / 2,009 Kg = 41.0 x 6 " / 152 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 0.82
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 20.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 1.67

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.673
   Length to Beam Ratio: 7.62 : 1
   'Natural speed' for length: 20.19 kts
   Power going to wave formation at top speed: 35 %
   Trim (Max stability = 0, Max steadiness = 100): 30
   Bow angle (Positive = bow angles forward): 36.05 degrees
   Stern overhang: 10.00 ft / 3.05 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (20 %):   15.00 ft / 4.57 m
      - Mid (50 %):      15.00 ft / 4.57 m
      - Quarterdeck (15 %):   15.00 ft / 4.57 m
      - Stern:      15.00 ft / 4.57 m
      - Average freeboard:   15.00 ft / 4.57 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 85.0 %
      - Above water (accommodation/working, high = better): 99.3 %
   Waterplane Area: 16,884 Square feet or 1,569 Square metres
   Displacement factor (Displacement / loading): 134 %
   Structure weight / hull surface area: 72 lbs/sq ft or 352 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.47
      - Overall: 1.00
   Caution: Poor stability - excessive risk of capsizing
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Excellent seaboat, comfortable, rides out heavy weather easily

[Logi]

Military Bought: $8.8 Mil

Refurbished to Aircraft Carrier Duty: $0.765 & 0.325 BP

Total: $9.56 & 0.325 BP

CNS Wang Chung, RRC Cargo Ship laid down 1920

Displacement:
   8,792 t light; 8,985 t standard; 9,646 t normal; 10,175 t full load

Dimensions: Length overall / water x beam x draught
   428.75 ft / 407.83 ft x 53.50 ft x 23.00 ft (normal load)
   130.68 m / 124.31 m x 16.31 m  x 7.01 m

Machinery:
   Oil fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 5,466 ihp / 4,078 Kw = 15.00 kts
   Range 5,900nm at 12.00 kts
   Bunker at max displacement = 1,190 tons

Complement:
   486 - 632

Cost:
   £0.833 million / $3.334 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 321 tons, 3.3 %
   Hull, fittings & equipment: 1,921 tons, 19.9 %
   Fuel, ammunition & stores: 854 tons, 8.9 %
   Miscellaneous weights: 6,550 tons, 67.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,429 lbs / 2,009 Kg = 41.0 x 6 " / 152 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 0.82
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 20.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 1.67

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.673
   Length to Beam Ratio: 7.62 : 1
   'Natural speed' for length: 20.19 kts
   Power going to wave formation at top speed: 35 %
   Trim (Max stability = 0, Max steadiness = 100): 30
   Bow angle (Positive = bow angles forward): 36.05 degrees
   Stern overhang: 10.00 ft / 3.05 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (20 %):   15.00 ft / 4.57 m
      - Mid (50 %):      15.00 ft / 4.57 m
      - Quarterdeck (15 %):   15.00 ft / 4.57 m
      - Stern:      15.00 ft / 4.57 m
      - Average freeboard:   15.00 ft / 4.57 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 85.0 %
      - Above water (accommodation/working, high = better): 99.3 %
   Waterplane Area: 16,884 Square feet or 1,569 Square metres
   Displacement factor (Displacement / loading): 134 %
   Structure weight / hull surface area: 72 lbs/sq ft or 352 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.47
      - Overall: 1.00
   Caution: Poor stability - excessive risk of capsizing
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Excellent seaboat, comfortable, rides out heavy weather easily

6550 Cargo Weight:

Modified to:
196 Tons -  Aircraft Facilities for 14 Aircrafts.
48 Tons  - Aerial Torpedoes (48 of them)
16 Tons - Climatization
15 Tons - Medical Facilties
25 Tons - Long-Range Wireless
25 Tons - Radar

2000 Tons - Cargo Weight
3750 Tons - 1.5 Tons per Soldiers (Total 2500 soldiers carried)
475 Tons - 1 ton per Short-Ranged Landing Craft (Total Capacity - 1900 Soldiers)

[Sachmle]

Good luck. That stability looks TERRIBLE.

[Logi]

Huh I thought I fixed that... guess not. I will need to work with it some more.

[Sachmle]

Huh I thought I fixed that... guess not. I will need to work with it some more.

It's the misc weight, SS assumes it's all above waterline.

[Logi]

Yea I was wondering how the same exact dimensions, misc weight, etc was unavailable to work in SS.

I'll just produce a modified version for SS. Probably by reducing the misc weight and adding bunkerage :-\

[Kaiser Kirk]

It's broadside mount, 30 on each side. Its also single 6"s, which leaves more than enough space for all the rounds etc. Older ships-of-line have packed far more on far less space. The only thing that worries me really is the torpedo mounts.

If we lined up the 6"s all directly, it would only take 30 ft in total for each side.

The ammo space, if packed to the ideal would take 202.5 cubical ft. There's enough space....

Heh, and I thought I was being cute with my 24x 18cm ships using double-stacked casements.... :)

Interesting idea, but I do wonder what you give up in both lateral training ability, and - more important in this age, elevation. Casements limited elevation, which didn't matter when ranges were short, but did as FC improved.

Not to mention that broadside mounts are typically not fixed, so one presumes the guns will need some re-alignment between shots. 

[Logi]

Randell, RRC Port Assault Ship laid down 1920 (Engine 1916)

Displacement:
   10,000 t light; 10,269 t standard; 11,126 t normal; 11,811 t full load

Dimensions: Length overall / water x beam x draught
   480.00 ft / 480.00 ft x 80.00 ft x 20.00 ft (normal load)
   146.30 m / 146.30 m x 24.38 m  x 6.10 m

Armament:
      1 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1920 Model
     Breech loading gun in deck mount
     on centreline forward
      2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, all forward
      2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, all aft
   Weight of broadside 540 lbs / 245 kg
   Shells per gun, main battery: 137

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.00" / 51 mm   1.00" / 25 mm            -
   2nd:   2.00" / 51 mm   1.00" / 25 mm            -
   3rd:   2.00" / 51 mm   1.00" / 25 mm            -

   - Conning tower: 3.00" / 76 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 1 shaft, 9,060 shp / 6,759 Kw = 17.00 kts
   Range 8,000nm at 12.00 kts
   Bunker at max displacement = 1,542 tons

Complement:
   541 - 704

Cost:
   £1.073 million / $4.292 million

Distribution of weights at normal displacement:
   Armament: 68 tons, 0.6 %
   Armour: 65 tons, 0.6 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 33 tons, 0.3 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 32 tons, 0.3 %
   Machinery: 338 tons, 3.0 %
   Hull, fittings & equipment: 3,255 tons, 29.3 %
   Fuel, ammunition & stores: 1,126 tons, 10.1 %
   Miscellaneous weights: 6,275 tons, 56.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17,481 lbs / 7,929 Kg = 161.9 x 6.0 " / 152 mm shells or 2.6 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 4.5 ft / 1.4 m
   Roll period: 15.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 1.99

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.507
   Length to Beam Ratio: 6.00 : 1
   'Natural speed' for length: 21.91 kts
   Power going to wave formation at top speed: 35 %
   Trim (Max stability = 0, Max steadiness = 100): 25
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      20.00 ft / 6.10 m
      - Forecastle (20 %):   20.00 ft / 6.10 m
      - Mid (50 %):      20.00 ft / 6.10 m
      - Quarterdeck (15 %):   20.00 ft / 6.10 m
      - Stern:      20.00 ft / 6.10 m
      - Average freeboard:   20.00 ft / 6.10 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 76.4 %
      - Above water (accommodation/working, high = better): 174.5 %
   Waterplane Area: 24,783 Square feet or 2,302 Square metres
   Displacement factor (Displacement / loading): 147 %
   Structure weight / hull surface area: 91 lbs/sq ft or 446 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.72
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

-----

BM-1, RRC Monitor laid down 1920 (Engine 1916)

Displacement:
   2,000 t light; 2,118 t standard; 2,207 t normal; 2,278 t full load

Dimensions: Length overall / water x beam x draught
   270.00 ft / 270.00 ft x 45.00 ft x 12.50 ft (normal load)
   82.30 m / 82.30 m x 13.72 m  x 3.81 m

Armament:
      2 - 11.00" / 279 mm guns (1x2 guns), 665.50lbs / 301.87kg shells, 1920 Model
     Breech loading guns in a turret (on a barbette)
     on centreline forward
   Weight of broadside 1,331 lbs / 604 kg
   Shells per gun, main battery: 100

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   143.00 ft / 43.59 m   12.00 ft / 3.66 m
   Ends:   Unarmoured
     Main Belt covers 81 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.00" / 127 mm   3.00" / 76 mm      4.00" / 102 mm

   - Armour deck: 1.50" / 38 mm, Conning tower: 4.00" / 102 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 1 shaft, 1,068 shp / 797 Kw = 12.00 kts
   Range 2,000nm at 12.00 kts
   Bunker at max displacement = 160 tons

Complement:
   160 - 209

Cost:
   £0.509 million / $2.036 million

Distribution of weights at normal displacement:
   Armament: 166 tons, 7.5 %
   Armour: 565 tons, 25.6 %
      - Belts: 237 tons, 10.8 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 95 tons, 4.3 %
      - Armour Deck: 218 tons, 9.9 %
      - Conning Tower: 15 tons, 0.7 %
   Machinery: 40 tons, 1.8 %
   Hull, fittings & equipment: 979 tons, 44.4 %
   Fuel, ammunition & stores: 207 tons, 9.4 %
   Miscellaneous weights: 250 tons, 11.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,639 lbs / 1,197 Kg = 4.0 x 11.0 " / 279 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 1.9 ft / 0.6 m
   Roll period: 13.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.42
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.509
   Length to Beam Ratio: 6.00 : 1
   'Natural speed' for length: 16.43 kts
   Power going to wave formation at top speed: 31 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      7.00 ft / 2.13 m
      - Forecastle (20 %):   7.00 ft / 2.13 m
      - Mid (50 %):      7.00 ft / 2.13 m
      - Quarterdeck (15 %):   6.00 ft / 1.83 m
      - Stern:      6.00 ft / 1.83 m
      - Average freeboard:   6.68 ft / 2.03 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 74.8 %
      - Above water (accommodation/working, high = better): 62.9 %
   Waterplane Area: 7,855 Square feet or 730 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 94 lbs/sq ft or 458 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.67
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is cramped

[ciders]

Just 152 mm guns ? Maybe it's too weak for a port assaut. And you lack of light defence : if a company of marines counter attack your ship, it will be past a bad hour. Some machine guns could increase his defence.

And why not using rockets ? Like a Soviet Polnocny class ?

[Logi]

Just 152 mm guns ? Maybe it's too weak for a port assault.

Weak? What century are you talking about? APA's usually carried only 1 5" gun. This has 5 6" guns...

And you lack of light defence : if a company of marines counter attack your ship,

I would expect the 25,000 troops (or 6,250 troops) on board to be able to counter such a weak attempt.

And why not using rockets ? Like a Soviet Polnocny class ?

Rocketry in the Cold War period with rocketry in just post-WW1 period... You are comparing Rockets are unreliable unreliable at the moment and having those large amount of unprotected explosions on deck of a 10,000 ton vessel is just asking for a sympathetic detonation. That also means those troops on board is going to die in such a case too. Not ideal.

Randell, RRC Port Assault Ship laid down 1920 (Engine 1916)

Displacement:
   10,000 t light; 10,267 t standard; 11,123 t normal; 11,808 t full load

Dimensions: Length overall / water x beam x draught
   480.00 ft / 480.00 ft x 80.00 ft x 20.00 ft (normal load)
   146.30 m / 146.30 m x 24.38 m  x 6.10 m

Armament:
      1 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1920 Model
     Breech loading gun in deck mount
     on centreline forward
      2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, all forward
      2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, all aft
      8 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 541 lbs / 245 kg
   Shells per gun, main battery: 130

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.00" / 51 mm   1.00" / 25 mm            -
   2nd:   2.00" / 51 mm   1.00" / 25 mm            -
   3rd:   2.00" / 51 mm   1.00" / 25 mm            -

   - Conning tower: 3.00" / 76 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 1 shaft, 9,059 shp / 6,758 Kw = 17.00 kts
   Range 8,000nm at 12.00 kts
   Bunker at max displacement = 1,542 tons

Complement:
   541 - 704

Cost:
   £1.073 million / $4.292 million

Distribution of weights at normal displacement:
   Armament: 68 tons, 0.6 %
   Armour: 65 tons, 0.6 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 33 tons, 0.3 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 32 tons, 0.3 %
   Machinery: 338 tons, 3.0 %
   Hull, fittings & equipment: 3,255 tons, 29.3 %
   Fuel, ammunition & stores: 1,123 tons, 10.1 %
   Miscellaneous weights: 6,275 tons, 56.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17,486 lbs / 7,932 Kg = 161.9 x 6.0 " / 152 mm shells or 2.6 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 4.5 ft / 1.4 m
   Roll period: 15.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 1.98

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.507
   Length to Beam Ratio: 6.00 : 1
   'Natural speed' for length: 21.91 kts
   Power going to wave formation at top speed: 35 %
   Trim (Max stability = 0, Max steadiness = 100): 25
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      20.00 ft / 6.10 m
      - Forecastle (20 %):   20.00 ft / 6.10 m
      - Mid (50 %):      20.00 ft / 6.10 m
      - Quarterdeck (15 %):   20.00 ft / 6.10 m
      - Stern:      19.00 ft / 5.79 m
      - Average freeboard:   19.93 ft / 6.07 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 76.4 %
      - Above water (accommodation/working, high = better): 174.5 %
   Waterplane Area: 24,780 Square feet or 2,302 Square metres
   Displacement factor (Displacement / loading): 147 %
   Structure weight / hull surface area: 91 lbs/sq ft or 447 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.71
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[ciders]

I would expect the 25,000 troops (or 6,250 troops) on board to be able to counter such a weak attempt

Sure. But if your troops engage the enemy far of their ship... and if a little motor torpedo boat infiltrated your convoy and attack your transport ? It was the same problem for the German Elefant tank hunter at the battle of Kursk : a big gun, but not only one self-defence gun. And, in a middle of a huge battle, without friendly soldiers near the vehicle...

With eight machine guns, you will seriously increase the life expectation of your transport. ;)

[Logi]

I think the troops would have 0.5" machineguns on them, quite a number of rifles too, but the MGs allow it to operate after the troops leave. Required a ton or two, but not bad.

[Logi]

Welcome the SS Wang Chung, the Springsharp counterpart to the RL SS Dakotan by the USA (American-Hawaii Route) and later sold to the Russians.

Because SS assumes all misc weight is above water whereas it is not, half of the weight (3275t) has been simmed as bunkerage.

The true bunkerage is 5900nm @ 12 kts.

Military Bought: $0.55 Mil

Refurbished to Aircraft Carrier Duty: $0.33 & 0.22 BP

Total: $0.88 & 0.22 BP

CNS Wang Chung, RRC Cargo Ship laid down 1920

Displacement:
   5,519 t light; 5,712 t standard; 9,650 t normal; 12,799 t full load

Dimensions: Length overall / water x beam x draught
   428.75 ft / 407.83 ft x 53.50 ft x 23.00 ft (normal load)
   130.68 m / 124.31 m x 16.31 m  x 7.01 m

Machinery:
   Oil fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 5,468 ihp / 4,079 Kw = 15.00 kts
   Range 21,510nm at 15.00 kts
   Bunker at max displacement = 7,087 tons

Complement:
   486 - 632

Cost:
   £0.563 million / $2.251 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0 %
   Machinery: 321 tons, 3.3 %
   Hull, fittings & equipment: 1,923 tons, 19.9 %
   Fuel, ammunition & stores: 4,130 tons, 42.8 %
   Miscellaneous weights: 3,275 tons, 33.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     18,038 lbs / 8,182 Kg = 167.0 x 6 " / 152 mm shells or 3.1 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 14.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 57 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 1.78

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.673
   Length to Beam Ratio: 7.62 : 1
   'Natural speed' for length: 20.19 kts
   Power going to wave formation at top speed: 35 %
   Trim (Max stability = 0, Max steadiness = 100): 32
   Bow angle (Positive = bow angles forward): 36.05 degrees
   Stern overhang: 10.00 ft / 3.05 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      15.00 ft / 4.57 m
      - Forecastle (20 %):   15.00 ft / 4.57 m
      - Mid (50 %):      15.00 ft / 4.57 m
      - Quarterdeck (15 %):   15.00 ft / 4.57 m
      - Stern:      15.00 ft / 4.57 m
      - Average freeboard:   15.00 ft / 4.57 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 48.8 %
      - Above water (accommodation/working, high = better): 99.3 %
   Waterplane Area: 16,888 Square feet or 1,569 Square metres
   Displacement factor (Displacement / loading): 246 %
   Structure weight / hull surface area: 72 lbs/sq ft or 352 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.47
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Excellent seaboat, comfortable, rides out heavy weather easily

6550 Cargo Weight:

Modified to:
196 Tons -  Aircraft Facilities for 14 Aircrafts.
24 Tons  - Aerial Torpedoes (24 of them)

6330 Tons - Cargo Weight