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- PBR vessels only have stats and no SS sim.

- PT boats, like the PBRs, only have stats and no SS sim.

That leaves the Umi Deep Sea Research Vessel for which I used a different way to sim a sub in order to make it work with SS, using the Trieste as base.

The armor represents the strengthened pressure hull where the main belt is for the float filled with gasoline and ballast water and the torpedo bulkhead is for the crew sphere.

The bunker represents the 85867 litres of gasoline (60t) and 14,225 litres of ballast water (13t) and 1 ton fuel (probably less, but I was too lazy how many kgs I would need to keep the vessel going for some 24-48 hours). Wiki indicates that Trieste had 85000 litres and I used the density of 0.71 kg/l to calculate the weight. Wiki did not say anything about the ballast water tanks, but I used the linedrawing to make the estimate.

Now I am not sure about its accuracy, but the German wiki pages on the FNRS-2 and FNRS-3 indicate that these two older Bathyscaphes had a theoretical maximum of 16,000 meters (52,493 feet), so I used that value as target for the calculations of the crush depth (which is the main reason the wall thickness of the sphere ended up being 10 inches while on the Trieste it was 5" (according to wiki)).

WIki indicates that Trieste was ~50 tons but I can't really do too much about the displacement considering that I am already at the minimum allowed BC while using roughly the same dimensions as the Trieste.

Umi, Japan Deep-submergence vehicle laid down 1945

Displacement:

110 t light; 113 t standard; 155 t normal; 188 t full load

Dimensions: Length overall / water x beam x draught

60.00 ft / 60.00 ft x 12.50 ft x 19.00 ft (normal load)

18.29 m / 18.29 m x 3.81 m x 5.79 m

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 1.35" / 34 mm 45.00 ft / 13.72 m 19.63 ft / 5.98 m

Ends: Unarmoured

Main Belt covers 115% of normal length

- Torpedo Bulkhead:

10.0" / 254 mm 7.00 ft / 2.13 m 11.00 ft / 3.35 m

Machinery:

Petrol Internal combustion generators plus batteries,

Electric motors, 1 shaft, 0 shp / 0 Kw = 1.00 kts

Range 1,125,000nm at 1.00 kts

Bunker at max displacement = 74 tons

Complement:

21 - 28 2

Cost:

£0.027 million / $0.107 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0%

Armour: 78 tons, 50.6%

- Belts: 50 tons, 32.2%

- Torpedo bulkhead: 28 tons, 18.4%

- Armament: 0 tons, 0.0%

- Armour Deck: 0 tons, 0.0%

- Conning Tower: 0 tons, 0.0%

Machinery: 0 tons, 0.0%

Hull, fittings & equipment: 32 tons, 20.7%

Fuel, ammunition & stores: 44 tons, 28.7%

Miscellaneous weights: 0 tons, 0.0%

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

3,644 lbs / 1,653 Kg = 33.7 x 6 " / 152 mm shells or 29.6 torpedoes

Stability (Unstable if below 1.00): 1.01

Metacentric height 0.2 ft / 0.1 m

Roll period: 11.1 seconds

Steadiness - As gun platform (Average = 50 %): 0 %

- Recoil effect (Restricted arc if above 1.00): 0.00

Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:

Hull has a flush deck

Block coefficient: 0.380

Length to Beam Ratio: 4.80 : 1

'Natural speed' for length: 7.75 kts

Power going to wave formation at top speed: 1 %

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 (% = measuring location as a percentage of overall length):

- Stem: 0.00 ft / 0.00 m

- Forecastle (20%): 0.00 ft / 0.00 m

- Mid (50%): 0.00 ft / 0.00 m

- Quarterdeck (15%): 0.00 ft / 0.00 m

- Stern: 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): -3.6%

- Above water (accommodation/working, high = better): 0.0%

Waterplane Area: 432 Square feet or 40 Square metres

Displacement factor (Displacement / loading): 197%

Structure weight / hull surface area: 27 lbs/sq ft or 132 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.05

- Longitudinal: 17.64

- Overall: 1.39

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is extremely poor

Ship has quick, lively roll, not a steady gun platform

Caution: Lacks seaworthiness - very limited seakeeping ability

Diving Depth: 6,161 ft

Emergency Depth: 18,027 ft

Crush Depth: 52,101 ft

Depth calculations:

For my previous subs with its strengthened pressure hull, I calculated that with 1.2" the modifiers would be 1.17x, 2x and 3.4x for the three depths, to be multiplied with the hull strength of the armorless sim. The hull thickness here is a lot more than with those subs. The float is 1.125x the thickness and the sphere 8.33x so I multiplied that with the modifiers (to get 1.316x, 2.25x and 3.825x and 9.74x, 16.66x, 28.32x respectively) and finally multiplied the values of each depth with each other to get a final Bathyscaphe modifier of 12.81x, 37.48x and 108.32x. Multiply that with the armorless sim hull strength of 4.81 and 100 to get the values above.

Is it correct? Well, considering that the Trieste's sphere wall was 5" and this one's is 10" probably not. But considering that this thing will be more for storyline stuff than any action, it is probably not that important. At least it

That leaves the Umi Deep Sea Research Vessel for which I used a different way to sim a sub in order to make it work with SS, using the Trieste as base.

Auguste Piccard (backed by his employer, the CNRS) will launch legal action to protect his patented intellectual property.

Hmm. Point well taken... :thumbsup:

Japan Patent Office: "We have received neither word nor writing from foreign patent offices of any patent of sorts having been filed regarding some sort or form of Deep Submergence Research Vehicle like the Umi or any patent of sorts having been filed regarding a so-called

Japanese Judge: "Not Guilty." *

Fear not. Japan's Unbiassed Legal System will take care of that. :)

Japan Patent Office: "We have received neither word nor writing from foreign patent offices of any patent of sorts having been filed regarding some sort or form of Deep Submergence Research Vehicle like the Umi or any patent of sorts having been filed regarding a so-calledSpringstyleorSpringsharpsim file of said vehicle by Mr. A. Piccard, the Centre National de la Recherche Scientifique or Mr. B. Paine..."

Japanese Judge: "Not Guilty." *BANG* "Next Case."

:D

Whether Brock's statement, or your reply, is in-or-out of character would have interesting application to the Law of Unintended Consequences.

I-310 Japanese Submarine

Date: 1946

Type: Oceanic

Length: 95.00m

Beam: 9.20m

Draft: 9.80m

Crush depth: 317.5m

Light Displacement 3189t

Loaded Displacement 3837t

Full Displacement 4283t

wt fuel&batts: 1275t

Reserve buoyancy: 10%

Armament:

- 8 x 533mm (bow)

- 2x1 25mm MGs (1 from sim, 1 from misc weights)

- 48 tons for mines or reload torpedoes

ElecHP: 15500hp

DieselHP: 7000hp

Speed:

- Max Surf Speed: 15.6 knots

- Max Sub Speed: 20.2 knots

Range:

- Surfaced: 18,342nm@10 knots

- Submerged: 415nm@5 knots

Tons Oil: 675.0t

Tons Battery: 600.0t

Miscellaneous Weight: 300 tons

Crew: 110

- 32 Type 3 torpedoes (= 8 in the tubes + 24 from the 48 tons for 'mines or reload torpedoes'), though usually 28 carried with 4 idle positions to permit withdrawal of torpedoes from tubes for servicing.

- Diesel-electric drive.

- Main electric engines output: 15,000 shp.

- Silent running engines output: 500 shp.

- Surface speed: (diesel-electric) 16 knots, (battery-electric) 20.8 knots.

- Submerged speed: (silent running engines) 6.4 knots, (battery-electric) 20.0 knots, (diesel-electric + Ninjatousaya) 10.1 knots.

- Range Surfaced (diesel-Electric): 22,645nm@9 knots, 18,342nm@10 knots, 12,738nm@12 knots, 8,152nm@15 knots.

- Range Submerged (batteries, silent running engines): 1,192nm@3 knots, 415nm@5 knots, 279nm@6 knots.

- Range Submerged (batteries, main engines): 143nm@8 knots, 80nm@10 knots, 22nm@15 knots.

- Range Submerged (diesel-electric + Ninjatousaya): 22,200nm@6 knots, 12,100nm@9 knots

- Endurance: (surfaced) 76 days and 10hours @ 10 knots, (submerged, batteries) 3 days and 11 hours @ 5 knots

- Diving depth: 417 feet

- Emergency Depth: 667 feet

- Crush Depth: 1042 feet

- 300 tons Miscellaneous weights breakdown:

--- 30 tons for electric torpedo reloading system

--- 5 torpedo service material

--- 1 ton for extra single 25mm machinegun

--- 10 tons for Ninjatousaya System

--- 60 tons for sonar, hydrophones and radar

--- 10 tons for defense countermeasures and 'camouflage'

--- 32 tons for air condition system

--- 4 tons for 80 oxygen bottles (50 l, 150 atm).

--- 5 tons CO2 removal system + Soda lime

--- 32 tons for damage control and fire suppression systems

--- 8 tons for safety and rescue equipment

--- 15 tons for yatai mobile food stall (well, mobile since the sub moves around)

--- 20 tons for pachinko parlor

--- 15 tons for karaoke facilities + Kobe Cola vending machines

--- 20 tons for officer's lounge

--- 4 tons for deep freeze unit

--- 29 tons for various

Notes:

- Speed. I used SS to determine how much power was needed for 20 knots and then raised the sub a bit so it was in a 'surfaced' state and figured out the speed with the same amount of power. The submerged diesel-electric + Ninjatousaya range is based on that of the Type XXI. The speed would be limited by the Ninjatousaya rather than the engine output.

- Range. Submerged range with Diesels is a bit of a guess. The German wiki page on the Type XXI gave similar ranges for submerged speeds roughly 2/3 of the surface speed so I stuck to that.

- Loading system. Can't find something definitive as to what was used on the Type XXI. English wiki says hydraulic (although it also says "citation needed") and German wiki indicates that it is electric (but there aren't any references there either). Looking at other sites it varies as well. In the end decided to stick to electric based on the German wiki and the XXI design study on uboatarchive.net.

## Quoted

Looks a comprehensive series of stats, I'm no expert with SubSim so I'll leave it to others to critique the design more thoroughly.

Me neither, although most of the stats below the main SubSim data is based on the SubSim I made of it. Not sure about the misc weights for most stuff. I did look around for 50l oxygen bottles and got a site where it said ~50 kg. It could be that that is for an empty one, but it was one that could handle more pressure than the ones I have so for simplicity I stuck to that and would give you roughly 20 bottles per ton. The rest is pretty much me entering something that seems reasonable.

## Quoted

Looks an impressive beast though.

Definitely more impressive than the one for Argentina.

http://www.hydra.co.za/products/diving-s…-gas-banks.html

... granted the weight is also dependent on what material is being used for the cylinder, but I kept it simple.

Quite so. Those air flasks were for blowing the ballast tanks. I have no idea the size of the oxygen tanks, so they could be as large or as small as your source, which seems quite plausible. It is, in all truth, a very minor point in the grand scheme of things.

While I could be wrong about the calculations, 50 liters of oxygen at 150 atmosphere is probably something like 10 kg. The 150 atmosphere bottles could be a bit lighter than the 200 atmosphere ones and while it may not be entirely correct, 50 kg (50.805 to be a bit more precise) is fairly easy to use as you would end up with 20 bottles per ton of miscellaneous weights.

Of course in the grand scheme of things, you are talking about 4 tons of a total of 3,189 tons. That's a mere 0.125% but it is a vital 0.125% if the submarine is remaining under water for a long period of time.

Ha-100 Midget Submarine (OTL Type D)

Year: 1946

Length: 86 feet

Beam: 9 feet

Draft: 7 feet (keel to 'deck' 9.6 feet)

Displacement (full): 60 tons

Machinery: 500 hp electric motors, 150 hp diesel engine.

Speed: (surface) 8 knots, (submerged) 16 knots

Range: (surface) 1,000nm at 8 knots, (submerged) 125nm at 16 knots

Armament: 2 muzzle-loaded 45cm torpedoes

Crew: 5

So it goes from looking like this...

... to looking like this...

Nothing else changes on the design, but when looking at the second pic, moving the breaks by 6% makes it looks a lot more acceptable.

Oshima, Japan Battleship laid down 1944

Displacement:

94,000 t light; 101,132 t standard; 108,149 t normal; 113,762 t full load

Dimensions: Length overall / water x beam x draught

1,043.71 ft / 1,020.00 ft x 130.00 ft (Bulges 140.00 ft) x 40.00 ft (normal load)

318.12 m / 310.90 m x 39.62 m (Bulges 42.67 m) x 12.19 m

Armament:

12 - 18.11" / 460 mm guns (4x3 guns), 3,897.77lbs / 1,768.00kg shells, 1944 Model (*)

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 2 raised mounts - superfiring

40 - 5.00" / 127 mm guns (20x2 guns), 55.12lbs / 25.00kg shells, 1944 Model

Automatic rapid fire guns in deck mounts with hoists

on side, all amidships, all raised mounts - superfiring

40 - 2.95" / 75.0 mm guns (20x2 guns), 12.00lbs / 5.44kg shells, 1944 Model

Automatic rapid fire guns in deck mounts with hoists

on side, evenly spread, 12 raised mounts

72 - 1.57" / 40.0 mm guns (12x6 guns), 2.00lbs / 0.91kg shells, 1944 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, all raised mounts

208 - 0.98" / 25.0 mm guns (52x4 guns), 0.57lbs / 0.26kg shells, 1944 Model (**)

Anti-aircraft guns in deck mounts

on side, evenly spread, 12 raised mounts

Weight of broadside 49,721 lbs / 22,553 kg

Shells per gun, main battery: 177 (***)

336 - 4.7" / 120 mm above water torpedoes (****)

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 17.9" / 454 mm 600.00 ft / 182.88 m 17.00 ft / 5.18 m

Ends: 14.0" / 356 mm 140.00 ft / 42.67 m 8.00 ft / 2.44 m

280.00 ft / 85.34 m Unarmoured ends

Upper: 2.25" / 57 mm 600.00 ft / 182.88 m 23.00 ft / 7.01 m

Main Belt covers 90% of normal length

- Torpedo Bulkhead and Bulges:

3.00" / 76 mm 600.00 ft / 182.88 m 50.00 ft / 15.24 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 26.0" / 660 mm 15.0" / 381 mm 20.0" / 508 mm

2nd: 3.00" / 76 mm 1.00" / 25 mm 2.00" / 51 mm

3rd: 1.00" / 25 mm 1.00" / 25 mm 1.00" / 25 mm

4th: 1.00" / 25 mm 1.00" / 25 mm -

5th: 1.00" / 25 mm 1.00" / 25 mm -

- Armour deck: 9.00" / 229 mm, Conning tower: 20.00" / 508 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 201,732 shp / 150,492 Kw = 29.00 kts

Range 10,000nm at 18.00 kts

Bunker at max displacement = 12,630 tons

Complement:

2,981 - 3,876

Cost:

£54.883 million / $219.533 million

Distribution of weights at normal displacement:

Armament: 4,937 tons, 4.6%

Armour: 41,097 tons, 38.0%

- Belts: 9,917 tons, 9.2%

- Torpedo bulkhead: 3,330 tons, 3.1%

- Armament: 9,016 tons, 8.3%

- Armour Deck: 17,855 tons, 16.5%

- Conning Tower: 978 tons, 0.9%

Machinery: 5,151 tons, 4.8%

Hull, fittings & equipment: 38,814 tons, 35.9%

Fuel, ammunition & stores: 14,149 tons, 13.1%

Miscellaneous weights: 4,000 tons, 3.7%

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

171,381 lbs / 77,737 Kg = 57.7 x 18.1 " / 460 mm shells or 34.4 torpedoes

Stability (Unstable if below 1.00): 1.11

Metacentric height 9.1 ft / 2.8 m

Roll period: 19.5 seconds

Steadiness - As gun platform (Average = 50 %): 60 %

- Recoil effect (Restricted arc if above 1.00): 0.68

Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:

Hull has low quarterdeck

and transom stern

Block coefficient: 0.663

Length to Beam Ratio: 7.29 : 1

'Natural speed' for length: 36.75 kts

Power going to wave formation at top speed: 46 %

Trim (Max stability = 0, Max steadiness = 100): 49

Bow angle (Positive = bow angles forward): 35.00 degrees

Stern overhang: 2.00 ft / 0.61 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 31.00 ft / 9.45 m

- Forecastle (25%): 21.20 ft / 6.46 m

- Mid (37%): 26.10 ft / 7.96 m

- Quarterdeck (7%): 19.20 ft / 5.85 m (26.10 ft / 7.96 m before break)

- Stern: 19.20 ft / 5.85 m

- Average freeboard: 25.08 ft / 7.64 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 67.6%

- Above water (accommodation/working, high = better): 160.3%

Waterplane Area: 107,238 Square feet or 9,963 Square metres

Displacement factor (Displacement / loading): 114%

Structure weight / hull surface area: 270 lbs/sq ft or 1,317 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.00

- Longitudinal: 1.00

- Overall: 1.00

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is excellent

Good seaboat, rides out heavy weather easily

(*) Actual main gun shell average weight 1775 kg. 1768kg was used to get a proper value for the magazine weight to be used for the breakdown of shells per gun as given below.

(**) Actual 25mm mounts: 40x4 (= 160 guns). 12x4 25mm mounts simmed for AA Rocket launcher mount.

(****) 12cm Rockets simmed as Torpedoes.

(***) Actual shells per gun

46cm = 120 rounds per gun (3131 tons total)

5" = 500 rounds per gun (735 tons total)

75mm = 1500 rounds per gun (535 tons total)

40mm = 2000 rounds per gun (131 tons total)

25mm = 3000 rounds per gun (306 tons total)

94000

- 80 tons for helicopter landing pad.

- 50 tons for 2 helicopters.

- 400 tons for flagship facilities

- 350 tons for fire control and fire control center

- 200 tons for radar systems

- 940 tons for damage control and fire suppression systems

- 235 tons emergency diesel generators

- 940 tons for air condition system

- 209 tons for degaussing coils

- 75 tons for 12x28 12 cm AA Rocket launchers

- 444 for mount improvements

--- 300 tons for 5" mounts

--- 80 tons for 75mm mounts

--- 24 tons for 40mm mounts

--- 40tons for 25mm mounts

- 77 tons for crew comfort.

Total: 4000 tons

Komaki, Japan Large Cruiser laid down 1946

Displacement:

24,860 t light; 26,348 t standard; 30,438 t normal; 33,710 t full load

Dimensions: Length overall / water x beam x draught

809.36 ft / 785.00 ft x 78.00 ft (Bulges 90.00 ft) x 30.00 ft (normal load)

246.69 m / 239.27 m x 23.77 m (Bulges 27.43 m) x 9.14 m

Armament:

10 - 10.00" / 254 mm guns (5x2 guns), 529.11lbs / 240.00kg shells, 1946 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, majority forward, 2 raised mounts - superfiring

32 - 2.95" / 75.0 mm guns (16x2 guns), 12.00lbs / 5.44kg shells, 1946 Model

Automatic rapid fire guns in deck mounts with hoists

on side, evenly spread, 8 raised mounts

36 - 1.57" / 40.0 mm guns (6x6 guns), 2.00lbs / 0.91kg shells, 1946 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 4 raised mounts

40 - 0.98" / 25.0 mm guns (10x4 guns), 0.57lbs / 0.26kg shells, 1946 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, 4 raised mounts

16 - 0.98" / 25.0 mm guns (4x4 guns), 0.00lbs / 0.00kg shells, 1946 Model

Anti-aircraft guns in deck mounts

on side, evenly spread

Weight of broadside 5,770 lbs / 2,617 kg

Shells per gun, main battery: 265

112 - 4.7" / 120 mm above water torpedoes

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 10.0" / 254 mm 510.25 ft / 155.52 m 10.00 ft / 3.05 m

Ends: Unarmoured

Main Belt covers 100% of normal length

- Torpedo Bulkhead and Bulges:

2.00" / 51 mm 510.25 ft / 155.52 m 26.47 ft / 8.07 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 10.0" / 254 mm 5.00" / 127 mm 9.00" / 229 mm

2nd: 1.00" / 25 mm - 1.00" / 25 mm

3rd: 1.00" / 25 mm 1.00" / 25 mm -

4th: 1.00" / 25 mm 1.00" / 25 mm -

- Armour deck: 4.00" / 102 mm, Conning tower: 3.00" / 76 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 141,723 shp / 105,726 Kw = 32.50 kts

Range 20,000nm at 15.00 kts

Bunker at max displacement = 7,362 tons

Complement:

1,151 - 1,497

Cost:

£13.847 million / $55.386 million

Distribution of weights at normal displacement:

Armament: 699 tons, 2.3%

Armour: 8,269 tons, 27.2%

- Belts: 2,122 tons, 7.0%

- Torpedo bulkhead: 999 tons, 3.3%

- Armament: 1,937 tons, 6.4%

- Armour Deck: 3,147 tons, 10.3%

- Conning Tower: 63 tons, 0.2%

Machinery: 3,540 tons, 11.6%

Hull, fittings & equipment: 11,152 tons, 36.6%

Fuel, ammunition & stores: 5,578 tons, 18.3%

Miscellaneous weights: 1,200 tons, 3.9%

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

53,860 lbs / 24,430 Kg = 107.7 x 10.0 " / 254 mm shells or 8.4 torpedoes

Stability (Unstable if below 1.00): 1.12

Metacentric height 4.3 ft / 1.3 m

Roll period: 18.2 seconds

Steadiness - As gun platform (Average = 50 %): 71 %

- Recoil effect (Restricted arc if above 1.00): 0.50

Seaboat quality (Average = 1.00): 1.51

Hull form characteristics:

Hull has a flush deck

and transom stern

Block coefficient: 0.503

Length to Beam Ratio: 8.72 : 1

'Natural speed' for length: 32.31 kts

Power going to wave formation at top speed: 52 %

Trim (Max stability = 0, Max steadiness = 100): 47

Bow angle (Positive = bow angles forward): 30.00 degrees

Stern overhang: 3.00 ft / 0.91 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 37.00 ft / 11.28 m

- Forecastle (20%): 27.00 ft / 8.23 m

- Mid (50%): 27.00 ft / 8.23 m

- Quarterdeck (15%): 27.00 ft / 8.23 m

- Stern: 27.00 ft / 8.23 m

- Average freeboard: 27.80 ft / 8.47 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 83.6%

- Above water (accommodation/working, high = better): 177.9%

Waterplane Area: 42,529 Square feet or 3,951 Square metres

Displacement factor (Displacement / loading): 137%

Structure weight / hull surface area: 152 lbs/sq ft or 740 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 0.95

- Longitudinal: 1.53

- Overall: 1.00

Hull space for machinery, storage, compartmentation is adequate

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

4x4 25mm 5th gun mounts simmed for AA Rocket launcher mount.

12cm Rockets simmed as Torpedoes.

Actual shells per gun (879t)

10" = 150 rounds per gun (441 tons total)

75mm = 1500 rounds per gun (320 tons total)

40mm = 2000 rounds per gun (80 tons total)

25mm = 3000 rounds per gun (38 tons total)

1200t

- 200 tons for fire control and fire control center

- 100 tons for radar systems

- 249 tons for damage control and fire suppression systems

- 63 tons emergency diesel generators

- 249 tons for air condition system

- 161 tons for degaussing coils

- 25 tons for 12x28 12 cm AA Rocket launchers

- 86 for mount improvements

--- 64 tons for 75mm mounts 4t

--- 12 tons for 40mm mounts 2t

--- 10 tons for 25mm mounts 1t

- 67 tons for for crew comfort.

Fuso, Japan Senkan laid down 1914 (Engine 1946)

Displacement:

33,321 t light; 35,507 t standard; 39,435 t normal; 42,578 t full load

Dimensions: Length overall / water x beam x draught

717.88 ft / 710.00 ft x 97.00 ft (Bulges 108.00 ft) x 30.00 ft (normal load)

218.81 m / 216.41 m x 29.57 m (Bulges 32.92 m) x 9.14 m

Armament:

12 - 14.17" / 360 mm guns (6x2 guns), 1,400.00lbs / 635.03kg shells, 1946 Model

Breech loading guns in turrets (on barbettes)

on centreline ends, evenly spread, 3 raised mounts - superfiring

16 - 5.00" / 127 mm guns in single mounts, 55.12lbs / 25.00kg shells, 1946 Model

Quick firing guns in casemate mounts

on side, all forward

16 guns in hull casemates - Limited use in heavy seas

20 - 2.95" / 75.0 mm guns (10x2 guns), 12.00lbs / 5.44kg shells, 1946 Model

Automatic rapid fire guns in deck mounts with hoists

on side, evenly spread

36 - 1.57" / 40.0 mm guns (6x6 guns), 2.00lbs / 0.91kg shells, 1946 Model

Anti-aircraft guns in deck mounts

on side, evenly spread, all raised mounts

56 - 0.98" / 25.0 mm guns (14x4 guns), 0.57lbs / 0.26kg shells, 1946 Model

Anti-aircraft guns in deck mounts

on side, evenly spread

Weight of broadside 18,026 lbs / 8,176 kg

Shells per gun, main battery: 137

168 - 4.7" / 120 mm above water torpedoes

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 14.0" / 356 mm 465.00 ft / 141.73 m 12.00 ft / 3.66 m

Ends: Unarmoured

Main Belt covers 101% of normal length

- Torpedo Bulkhead and Bulges:

2.00" / 51 mm 465.00 ft / 141.73 m 29.00 ft / 8.84 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 16.0" / 406 mm 10.0" / 254 mm 14.0" / 356 mm

2nd: 4.00" / 102 mm - 4.00" / 102 mm

3rd: 1.00" / 25 mm - 1.00" / 25 mm

4th: 1.00" / 25 mm 1.00" / 25 mm -

5th: 1.00" / 25 mm 1.00" / 25 mm -

- Armour deck: 5.50" / 140 mm, Conning tower: 18.00" / 457 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 65,359 shp / 48,758 Kw = 24.00 kts

Range 10,000nm at 18.00 kts

Bunker at max displacement = 7,072 tons

Complement:

1,398 - 1,818

Cost:

£4.246 million / $16.984 million

Distribution of weights at normal displacement:

Armament: 2,311 tons, 5.9%

Armour: 14,091 tons, 35.7%

- Belts: 3,364 tons, 8.5%

- Torpedo bulkhead: 998 tons, 2.5%

- Armament: 4,154 tons, 10.5%

- Armour Deck: 5,125 tons, 13.0%

- Conning Tower: 449 tons, 1.1%

Machinery: 1,632 tons, 4.1%

Hull, fittings & equipment: 13,937 tons, 35.3%

Fuel, ammunition & stores: 6,115 tons, 15.5%

Miscellaneous weights: 1,350 tons, 3.4%

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

53,684 lbs / 24,350 Kg = 37.7 x 14.2 " / 360 mm shells or 9.8 torpedoes

Stability (Unstable if below 1.00): 1.11

Metacentric height 5.8 ft / 1.8 m

Roll period: 18.8 seconds

Steadiness - As gun platform (Average = 50 %): 56 %

- Recoil effect (Restricted arc if above 1.00): 0.47

Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:

Hull has rise forward of midbreak

Block coefficient: 0.600

Length to Beam Ratio: 6.57 : 1

'Natural speed' for length: 26.65 kts

Power going to wave formation at top speed: 45 %

Trim (Max stability = 0, Max steadiness = 100): 50

Bow angle (Positive = bow angles forward): 20.00 degrees

Stern overhang: 0.00 ft / 0.00 m

Freeboard (% = measuring location as a percentage of overall length):

- Stem: 21.65 ft / 6.60 m

- Forecastle (20%): 18.65 ft / 5.68 m

- Mid (70%): 18.65 ft / 5.68 m (11.60 ft / 3.54 m aft of break)

- Quarterdeck (15%): 11.60 ft / 3.54 m

- Stern: 11.60 ft / 3.54 m

- Average freeboard: 16.78 ft / 5.11 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 78.9%

- Above water (accommodation/working, high = better): 106.9%

Waterplane Area: 50,370 Square feet or 4,680 Square metres

Displacement factor (Displacement / loading): 106%

Structure weight / hull surface area: 200 lbs/sq ft or 974 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.02

- Longitudinal: 0.99

- Overall: 1.00

Hull space for machinery, storage, compartmentation is excellent

Room for accommodation and workspaces is adequate

Actual 25mm mounts: 8x4 (= 32 guns)

6x4 25mm mounts simmed for AA Rocket launcher mount.

12cm Rockets simmed as Torpedoes.

Actual shells per gun (1398t)

36cm = 100 rounds per gun (933 tons total)

5" = 315 rounds per gun (154 tons total)

75mm = 1500 rounds per gun (200 tons total)

40mm = 2000 rounds per gun (80 tons total)

25mm = 3000 rounds per gun (31 tons total)

1350t

- 200 tons for fire control and fire control center

- 100 tons for radar systems

- 334 tons for damage control and fire suppression systems

- 84 tons emergency diesel generators

- 334 tons for air condition system

- 144 tons for degaussing coils

- 38 tons for 6x28 12 cm AA Rocket launchers

- 60 for mount improvements

--- 40 tons for 75mm mounts

--- 12 tons for 40mm mounts

--- 8 tons for 25mm mounts

- 56 tons for for crew comfort.

## Quoted

A modification of midbreak/lowered quarterdeck requires a 75% rebuild, right?

The way the freeboard is simmed in the sim above is what it

## Quoted

I must admit I have not fully understood how you sim those rockets. Can you please explain?

Well according to Navweaps...

## Quoted

These mountings were adapted from the 25 mm AA triple gun mountingand could be controlled by Ward-Leonard RPC or by two men in protected cabs. The launcher resembled a large box which consisted of four rows of seven rockets each.

... so I do just that but with the quad 25mm mounts instead because I decided to change from the triples to quads a bit earlier in the 1940s. So in case of the Fuso of the 14 25mm mounts that are simmed, 8 actually contain 25mm guns while the remaining 6 are adapted mounts for the 12cm AA rockets and do not contain any 25mm guns (but they do add a bit of weight).

Now I cannot remember how I got to that weight but I use 6.25 tons per 4x7 box of rockets. And IIRC there had been some discussion in the past regarding rockets and that they are more about taking up space than actual weight (or something like that). So I therefore use the torpedoes to sim the rockets as well because (if I am not mistaken) simming torpedoes may not add any weight to the design but they

So in short: one 25mm quad mount per launcher, 6.25 tons misc weight per launcher, 28 120mm torpedoes per launcher.

Not sure if it is correct but at least it is something. Same goes for the various other things I add to the ships like damage control and fire suppression systems (1 ton per 100 tons light displacement), emergency diesel generators(1 ton per 400 tons light displacement), air condition system(1 ton per 100 tons light displacement), degaussing coils (1 ton per 5 feet of length (oa)) , and mount improvements (1t per 25mm mount, 2t per 40mm mount 4t per 75mm mount and I forgot how much I add for the 105 and 5" mounts).

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