WesWorld

Well, I hope nobody minds if I join Red Admiral in the year 1925 and leave the rest of you behind in 1924 (for now).
^_^
Changing gears for 1925.

Japan’s Naval Developments – Q1/1925

A. Industrial Allocation

22/27 factories producing warship material = 22,000 t. No stockpiled materials available. 22,000 t are used, no materials stockpiled.

5/27 factories are dedicated to producing infrastructure material, = 0.5 points.

B. Infrastructure Development

Upgrade of Dock III-5A at Hakodate to Type IV. Receives 0.5 for a total of 4.5 points.

C. Naval Construction

Kure Navy Yard, Kure (Honshu)
Slip V-1A => BB Kii receives 2379 tons
Slip I-1A => idle
Slip I-1B => idle
Dock V-1A => idle
Free-floating : DD2 Fubuki receives 279 tons. Completed 3/3/1925

Yokosuka Navy Yard, Yokosuka (Honshu)
Slip V-2A => BC Dairen laid down 1/1/1925. Receives 1908 tons.
Slip I-2A => DD3 Ellena Kunagecva receives 174 tons. Launched 1/7/1925
Slip I-2B => idle

Kawasaki Co, Kobe (Honshu)
Slip V-3A => BC T'ai-Pei laid down 1/1/1925. Receives 1908 tons.
Slip II-3A => DD3 Kirihime receives 174 tons. Launched 1/6/1925
Slip I-3A => idle
Dock II-3A => idle
Free-floating: GB Go ni Mk.2 I receives 218 tons. Completed 2/8/1925

Mitsubushi Co, Nagasaki (Kyushu)
Slip V-4A => DD3 Yury Vasyuchenko receives 174 tons. Launched 1/7/1925
Slip II-4A => idle
Slip I-4A => idle
Dock II-4A => idle
Free-floating: DD3 Ninaris receives 174 tons.
Free-floating: GB Go ni Mk.2 II receives 218 tons. Completed 2/9/1925

Fukuoka Navy Yard, Fukuoka (Kyushu)
Slip III-5A => CA Rashomon laid down 1/1/1925. Receives 1554 tons.
Slip II-5A => idle
Slip I-5A => idle
Dock III-5A => Upgrading to type IV.
Free-floating: DD3 Belkut receives 174 tons.
Free-floating: CA Miyazawa Yukino receives 1,853 tons.
Free-floating: DD2 Shirayuki receives 279 tons. Completed 3/4/1925.

Hakodate Navy Yard, Hakodate (Hokkaido)
Slip III-6A => CA Yojimbo laid down 1/1/1925. Receives 1554 tons.
Slip II-6A => idle
Slip I-6A => idle
Free-floating: DD3 Syndra receives 174 tons.
Free-floating: CA Sakura Tsubaki receives 1,853 tons.
Free-floating: DD2 Hatsuyuki receives 279 tons. Completed 3/3/1925

Aomori Navy Yard, Aomori (Honshu)
Slip III-7A => CDS Atatake receives 1365 tons. Launched 1/28/1925
Slip I-7A => idle
Dock I-7A => idle
Free-floating: DD2 Murakumo receives 279 tons. Completed 3/2/1925

Kagoshima Navy Yard, Kagoshima (Kyushu)
Slip III-8A => CL Tange laid down 1/1/1925. Receives 1347 tons.
Slip I-8A => idle
Dock I-8A => idle
Slip 0-8A => idle
Slip 0-8B => idle
Dock 0-8A => idle
Free-floating: DD3 Corona receives 174 tons.

Wakayama Navy Yard, Wakayama (Honshu)
Slip III-9A => CL Horie laid down 1/1/1925. Receives 1347 tons.
Slip I-9A => idle
Dock I-9A => idle
Free-floating: DD3 Lapis receives 174 tons.
Free-floating: DD2 Akatsuki receives 273 tons. Completed 3/5/1925

Tokushima Navy Yard, Tokushima (Shikoku)
Slip III-10A => idle
Slip I-10A => idle
Dock I-10A => idle
Free-floating: DD3 Hugtrang receives 174 tons.
Free-floating: DD2 Hibiki receives 273 tons. Completed 3/4/1925

Niigata Navy Yard, Niigata (Honshu)
Slip I-11A => idle
Slip I-11B => idle
Dock III-11A => idle
Free-floating: DD2 Inazuma receives 273 tons. Completed 3/3/1925

Niihama Navy Yard, Niihama (Shikoku)
Slip I-12A => idle
Slip I-12B => idle
Dock III-12A => idle
Free-floating: DD2 Ikazuchi receives 273 tons. Completed 3/4/1925

D. Transactions

none.

E. Other Notes

Go ni Mk.2 I and Go ni Mk.2 II (Go ni Mk.2 class) started shakedown cruises.
Fubuki, Shirayuki, Hatsuyuki and Murakumo (Fubuki class) started shakedown cruises.
Akatsuki, Hibiki, Inazuma and Ikazuchi (Akatsuki class) started shakedown cruises.

Go ni Mk.1 III, VI, V and VI (Go ni Mk.1 class) complete shakedown cruises.

New units laid down this quarter:
Dairen and T'ai-Pei of the Dairen class require 28817 tons and 38 months.
Rashomon and Yojimbo of the Rashomon class require 10092 tons and 19.5 months.
Tange and Horie of the Tange class require 7631 tons and 17 months.

F. Updated Order of Battle, 31/3/25

Note: Y)+Z = completed (under repair/refit) + under construction

Limited warships:
Battleships: 6(0)+1
Aircraft Carriers: 3(0)+0
Heavy Cruisers: 4(0)+2
Light Cruisers: 14(0)+0
Destroyers class 1: 0(0)+0
Destroyers class 2: 30(0)+0
Submarines: 7(0)+0
Coast Defense Vessels: 3(0)+1
Museum ships: 2(0)+0

Non-limited Warships
Destroyers class 3: 175(0)+10
Gunboats: 32(0)+0
Minelayers: 27(0)+0
Minesweepers: 18(0)+0
Submarine Chasers class 1: 30(0)+0
Submarine Chasers class 2: 42(0)+0
Corvettes: 30(0)+0

Auxiliaries
Ammunition ships: 3(0)+0
Oilers: 9(0)+0
Cargo ships: 32(0)+0
Transport ships: 16(0)+0
Tenders: 7(0)+0
Repair ships: 5(0)+0
Netlayer and target towing vessel: 4(0)+0
Naval Tugs: 12(0)+0

Quoted

New units laid down this quarter:
Dairen and Tai’Pei of the Dairen class require 28786 tons and 38 months.
Rashomon and Yojimbo of the Rashomon class require 10092 tons and 19.5 months.
Tange and Horie of the Tange class require 7631 tons and 17 months.

Any data?

Coming up, but the computer was a bit stubborn.

Always wanted to build something useless like this.
I could have tried to go for the 14 inch guns that already exist and end up with a 14 inch armed Repulse(ive)- like vessel.
Armor is so-so, but almost as much as Japan's 'old Battleships' (Main/Turret/deck: Fuso 12"/11"/2" and Nagato 12"/12"/2.5").
This ship is a bit like the CB-64/65 design I have that has gone back in time a bit.

[Edit: corrected the shell weights for the 10.5cm, the 2pdr, and the 25mm guns. Also matched shell weight of the main guns to that used by the Philippines.]

Dairen, Battle Cruiser laid down 1925

Displacement:
28,817 t light; 30,000 t standard; 32,522 t normal; 34,539 t full load

Dimensions: Length overall / water x beam x draught
815.76 ft / 798.75 ft x 80.00 ft (Bulges 91.00 ft) x 29.00 ft (normal load)
248.64 m / 243.46 m x 24.38 m (Bulges 27.74 m) x 8.84 m

Armament:
9 - 12.00" / 305 mm guns (3x3 guns), 925.00lbs / 419.57kg shells, 1925 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
16 - 4.13" / 105 mm guns (8x2 guns), 36.00lbs / 16.33kg shells, 1921 Model
Dual purpose guns in turrets (on barbettes)
on side, all amidships, 4 raised mounts - superfiring
16 - 1.57" / 40.0 mm guns (4x4 guns), 2.00lbs / 0.91kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
30 - 0.98" / 25.0 mm guns (10x3 guns), 0.57lbs / 0.26kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 8,950 lbs / 4,060 kg
Shells per gun, main battery: 105
8 - 24.0" / 609.6 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.0" / 254 mm 634.00 ft / 193.24 m 10.90 ft / 3.32 m
Ends: Unarmoured
Upper: 1.25" / 32 mm 634.00 ft / 193.24 m 12.00 ft / 3.66 m
Main Belt covers 122 % of normal length

- Torpedo Bulkhead and Bulges:
1.00" / 25 mm 634.00 ft / 193.24 m 26.44 ft / 8.06 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 279 mm 7.00" / 178 mm 8.00" / 203 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm - -
4th: 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, 205,140 shp / 153,035 Kw = 34.00 kts
Range 9,000nm at 15.00 kts (Bunkerage = 4,539 tons)

Complement:
1,210 - 1,574

Cost:
£9.235 million / $36.938 million

Distribution of weights at normal displacement:
Armament: 1,048 tons, 3.2 %
Armour: 8,909 tons, 27.4 %
- Belts: 3,183 tons, 9.8 %
- Torpedo bulkhead: 620 tons, 1.9 %
- Armament: 1,771 tons, 5.4 %
- Armour Deck: 3,269 tons, 10.1 %
- Conning Tower: 66 tons, 0.2 %
Machinery: 6,660 tons, 20.5 %
Hull, fittings & equipment: 12,099 tons, 37.2 %
Fuel, ammunition & stores: 3,705 tons, 11.4 %
Miscellaneous weights: 100 tons, 0.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
21,227 lbs / 9,628 Kg = 24.6 x 12.0 " / 305 mm shells or 2.7 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 4.0 ft / 1.2 m
Roll period: 19.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.65
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.540
Length to Beam Ratio: 8.78 : 1
'Natural speed' for length: 28.26 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 67
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 33.00 ft / 10.06 m
- Forecastle (20 %): 24.00 ft / 7.32 m
- Mid (50 %): 23.00 ft / 7.01 m
- Quarterdeck (15 %): 23.00 ft / 7.01 m
- Stern: 23.00 ft / 7.01 m
- Average freeboard: 24.07 ft / 7.34 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 122.0 %
- Above water (accommodation/working, high = better): 143.4 %
Waterplane Area: 44,180 Square feet or 4,104 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 168 lbs/sq ft or 821 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.11
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Main Belt inclined at 10 degrees.

When it comes to CAs, I wanted to try out something like the Mogami class cruisers. Slightly heavier than a Mogami class cruiser, but slightly better armor (slightly).
Ships of this class are named after movies directed by Kurosawa Akira, the first two built being Rashomon and Yojimbo.


Rashomon, Heavy Cruiser laid down 1925

Displacement:
10,092 t light; 10,500 t standard; 11,699 t normal; 12,658 t full load

Dimensions: Length overall / water x beam x draught
607.23 ft / 600.00 ft x 60.00 ft x 22.00 ft (normal load)
185.08 m / 182.88 m x 18.29 m x 6.71 m

Armament:
15 - 5.91" / 150 mm guns (5x3 guns), 110.00lbs / 49.90kg shells, 1921 Model
Quick firing guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
8 - 4.13" / 105 mm guns (4x2 guns), 36.00lbs / 16.33kg shells, 1921 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
16 - 1.57" / 40.0 mm guns (4x4 guns), 2.00lbs / 0.91kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
24 - 0.98" / 25.0 mm guns (8x3 guns), 0.57lbs / 0.26kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 1,984 lbs / 900 kg
Shells per gun, main battery: 150
8 - 24.0" / 609.6 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.50" / 114 mm 436.00 ft / 132.89 m 9.30 ft / 2.83 m
Ends: Unarmoured
Main Belt covers 112 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.00" / 102 mm 3.00" / 76 mm 2.00" / 51 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -

- Armour deck: 2.00" / 51 mm, Conning tower: 3.00" / 76 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 105,609 shp / 78,784 Kw = 33.00 kts
Range 8,045nm at 15.00 kts (Bunkerage = 2,158 tons)

Complement:
562 - 731

Cost:
£3.370 million / $13.478 million

Distribution of weights at normal displacement:
Armament: 234 tons, 2.0 %
Armour: 2,038 tons, 17.4 %
- Belts: 747 tons, 6.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 356 tons, 3.0 %
- Armour Deck: 901 tons, 7.7 %
- Conning Tower: 33 tons, 0.3 %
Machinery: 3,429 tons, 29.3 %
Hull, fittings & equipment: 4,291 tons, 36.7 %
Fuel, ammunition & stores: 1,607 tons, 13.7 %
Miscellaneous weights: 100 tons, 0.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10,480 lbs / 4,754 Kg = 101.8 x 5.9 " / 150 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 2.6 ft / 0.8 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.60
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.517
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 24.49 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (20 %): 20.50 ft / 6.25 m
- Mid (50 %): 19.50 ft / 5.94 m
- Quarterdeck (15 %): 19.50 ft / 5.94 m
- Stern: 19.50 ft / 5.94 m
- Average freeboard: 20.53 ft / 6.26 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 111.8 %
- Above water (accommodation/working, high = better): 130.3 %
Waterplane Area: 24,363 Square feet or 2,263 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 106 lbs/sq ft or 517 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.42
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

I come up with these sorts of designs only after sessions of heavy drinking.

What are you thinking with that Battlecruiser? Then again, i suppose that you have few enemies in the Pacific. Do you think that you can get it up to 35knts?

While the biggest of the three classes is the fastest, the smallest one ended up being the slowest. -_-;;
Main reason is that I wanted the main gun turret (armor) and barbette to exactly match that of the Rashomon class (probably a stupid idea). Also for some stupid reason, I used the same length and beam as that of the Rashomon class.
Ships of this class are named after seiyuu (Voice actors/actresses).


Tange, Light Cruiser laid down 1925

Displacement:
7,631 t light; 7,948 t standard; 8,589 t normal; 9,101 t full load

Dimensions: Length overall / water x beam x draught
606.98 ft / 600.00 ft x 60.00 ft x 16.70 ft (normal load)
185.01 m / 182.88 m x 18.29 m x 5.09 m

Armament:
12 - 5.91" / 150 mm guns (4x3 guns), 110.00lbs / 49.90kg shells, 1921 Model
Quick firing guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 4.13" / 105 mm guns (4x2 guns), 36.00lbs / 16.33kg shells, 1921 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
16 - 1.57" / 40.0 mm guns (4x4 guns), 2.00lbs / 0.91kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
18 - 0.98" / 25.0 mm guns (6x3 guns), 0.57lbs / 0.26kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 1,650 lbs / 749 kg
Shells per gun, main battery: 150
8 - 24.0" / 609.6 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 437.00 ft / 133.20 m 9.30 ft / 2.83 m
Ends: Unarmoured
Main Belt covers 112 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.00" / 102 mm 3.00" / 76 mm 2.00" / 51 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -

- Armour deck: 1.00" / 25 mm, Conning tower: 3.00" / 76 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 76,713 shp / 57,228 Kw = 32.00 kts
Range 5,000nm at 15.00 kts (Bunkerage = 1,152 tons)

Complement:
445 - 579

Cost:
£2.551 million / $10.203 million

Distribution of weights at normal displacement:
Armament: 195 tons, 2.3 %
Armour: 1,249 tons, 14.5 %
- Belts: 499 tons, 5.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 280 tons, 3.3 %
- Armour Deck: 444 tons, 5.2 %
- Conning Tower: 27 tons, 0.3 %
Machinery: 2,491 tons, 29.0 %
Hull, fittings & equipment: 3,696 tons, 43.0 %
Fuel, ammunition & stores: 958 tons, 11.2 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,629 lbs / 3,914 Kg = 83.8 x 5.9 " / 150 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 2.9 ft / 0.9 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.47
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.500
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 24.49 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (20 %): 17.50 ft / 5.33 m
- Mid (50 %): 17.30 ft / 5.27 m
- Quarterdeck (15 %): 17.30 ft / 5.27 m
- Stern: 17.30 ft / 5.27 m
- Average freeboard: 18.21 ft / 5.55 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 111.9 %
- Above water (accommodation/working, high = better): 142.5 %
Waterplane Area: 23,986 Square feet or 2,228 Square metres
Displacement factor (Displacement / loading): 110 %
Structure weight / hull surface area: 102 lbs/sq ft or 500 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.07
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Quoted

I come up with these sorts of designs only after sessions of heavy drinking.

Looking at some of your designs, I guess you do that all the time. ;-)

Quoted

What are you thinking with that Battlecruiser?

Did you read this bit above the design which read:

Quoted

Always wanted to build something useless like this.

Quoted

Do you think that you can get it up to 35knts?

You mean like this? The armor has dropped below the 'so-so level' to the 'slightly questionable' level.

Dairen, Battle Cruiser laid down 1925

Displacement:
28,788 t light; 30,000 t standard; 32,522 t normal; 34,539 t full load

Dimensions: Length overall / water x beam x draught
815.76 ft / 798.75 ft x 80.00 ft (Bulges 91.00 ft) x 29.00 ft (normal load)
248.64 m / 243.46 m x 24.38 m (Bulges 27.74 m) x 8.84 m

Armament:
9 - 12.00" / 305 mm guns (3x3 guns), 850.00lbs / 385.55kg shells, 1925 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
16 - 4.13" / 105 mm guns (8x2 guns), 35.32lbs / 16.02kg shells, 1921 Model
Dual purpose guns in turrets (on barbettes)
on side, all amidships, 4 raised mounts - superfiring
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.88kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
30 - 0.98" / 25.0 mm guns (10x3 guns), 0.48lbs / 0.22kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 8,261 lbs / 3,747 kg
Shells per gun, main battery: 120
8 - 24.0" / 609.6 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 8.00" / 203 mm 693.00 ft / 211.23 m 10.90 ft / 3.32 m
Ends: Unarmoured
Main Belt covers 133 % of normal length

- Torpedo Bulkhead and Bulges:
1.00" / 25 mm 693.00 ft / 211.23 m 26.44 ft / 8.06 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 5.00" / 127 mm 7.00" / 178 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm - -
4th: 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, 230,642 shp / 172,059 Kw = 35.00 kts
Range 9,000nm at 15.00 kts (Bunkerage = 4,539 tons)

Complement:
1,210 - 1,574

Cost:
£9.610 million / $38.442 million

Distribution of weights at normal displacement:
Armament: 1,048 tons, 3.2 %
Armour: 7,977 tons, 24.5 %
- Belts: 2,413 tons, 7.4 %
- Torpedo bulkhead: 678 tons, 2.1 %
- Armament: 1,550 tons, 4.8 %
- Armour Deck: 3,269 tons, 10.1 %
- Conning Tower: 66 tons, 0.2 %
Machinery: 7,488 tons, 23.0 %
Hull, fittings & equipment: 12,074 tons, 37.1 %
Fuel, ammunition & stores: 3,734 tons, 11.5 %
Miscellaneous weights: 200 tons, 0.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,081 lbs / 8,201 Kg = 20.9 x 12.0 " / 305 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 4.0 ft / 1.2 m
Roll period: 19.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.63
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.540
Length to Beam Ratio: 8.78 : 1
'Natural speed' for length: 28.26 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 33.00 ft / 10.06 m
- Forecastle (20 %): 24.00 ft / 7.32 m
- Mid (50 %): 24.00 ft / 7.32 m
- Quarterdeck (15 %): 24.00 ft / 7.32 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 24.72 ft / 7.53 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 133.4 %
- Above water (accommodation/working, high = better): 148.1 %
Waterplane Area: 44,180 Square feet or 4,104 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 167 lbs/sq ft or 814 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.14
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Main Belt inclined at 10 degrees.

Besides, I guess it is always better than this one (and if I am not mistaken, it was you who showed me that picture of that huge BB).

Time to build (Wesworld stype): 40 years and 3 days.

Kaneda, Japan Super Kingsize gigantic BB laid down 1918

Displacement:
471,089 t light; 500,039 t standard; 511,643 t normal; 518,880 t full load
Loading submergence 12,104 tons/feet

Dimensions:
1,998.03 ft x 298.56 ft x 50.03 ft (normal load)
609.00 m x 91.00 m x 15.25 m

Armament:
100 - 16.00" / 406 mm guns (50 Main turrets x 2 guns, 12 superfiring turrets)
200 - 5.51" / 140 mm guns
Secondary guns mounted low & subject to being washed down in a seaway
100 - 3.94" / 100 mm AA guns
Weight of broadside 224,596 lbs / 101,875 kg

Armour:
Belt 10.00" / 254 mm, upper belt 3.00" / 76 mm, end belts 3.00" / 76 mm
Belts cover 97 % of normal area
Main turrets 8.00" / 203 mm, 2nd casemates 4.00" / 102 mm
AA gun shields 1.00" / 25 mm
Armour deck 2.00" / 51 mm, Conning tower 10.00" / 254 mm
Torpedo bulkhead 1.00" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 30 shafts, 2,066,945 shp / 1,541,941 Kw = 42.00 kts
Range 6,000nm at 15.00 kts

Complement:
9,565 - 12,434

Cost:
£101.020 million / $404.079 million

Distribution of weights at normal displacement:
Armament: 28,075 tons, 5.5 %
Armour: 119,167 tons, 23.3 %
Belts: 14,080 tons, 2.8 %, Armament: 85,612 tons, 16.7 %, Armour Deck: 15,674 tons, 3.1 %
Conning Tower: 1,396 tons, 0.3 %, Torpedo bulkhead: 2,404 tons, 0.5 %
Machinery: 74,565 tons, 14.6 %
Hull, fittings & equipment: 249,283 tons, 48.7 %
Fuel, ammunition & stores: 40,553 tons, 7.9 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 38.2

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable and able to fight her guns in the heaviest weather

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.24
Shellfire needed to sink: 789,429 lbs / 358,079 Kg = 385.5 x 16.0 " / 406 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 114.7
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.43
Relative quality as seaboat: 1.52

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.41
Hull speed coefficient 'M': 7.65
'Natural speed' for length: 44.70 kts
Power going to wave formation at top speed: 46 %
Trim: 46
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 96.3 %
Relative accommodation and working space: 595.1 %
(Average = 100%)
Displacement factor: 104 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.00
(Structure weight / hull surface area: 453 lbs / square foot or 2,210 Kg / square metre)
Relative longitudinal hull strength: 1.03
(for 70.54 ft / 21.50 m average freeboard, freeboard adjustment 37.27 ft)
Relative composite hull strength: 1.01

Quoted

Besides, I guess it is always better than this one (and if I am not mistaken, it was you who showed me that picture of that huge BB).

Who needs Habbakuk when you can have a ship of that size made from steel?

There would be a few problems fitting through the Panama canal with that 91m beam, but i reckon if you ram at 42knts you could maybe make your own canal.

It should be noted that the Darien class uses the same 12"/55 Skoda guns as the Filipino Panabos, except for a slightly lighter shell.

Quoted

It should be noted that the Darien class uses the same 12"/55 Skoda guns as the Filipino Panabos, except for a slightly lighter shell.

Yes, though I believe you had 1924 as date for that gun, so I have to correct it there. I also need to adjust shell weight for the 10.5cm, 2pdr, and 25mm guns because I always forget that every time you reload the design, you have to reenter the shell weights for the guns that do not have the same date as the ship itself (really annoying). I will also take a look if I can make a minor modification to the design to see if it can handle the Filipino 925 lbs. shells without too much problems.

Quoted

I believe you had 1924 as date for that gun

No, it was '25.

Well, I guess I will have to edit the design... again!

While creating the Q2 report, I encountered a huge error I made: there were 6 additional ships that I had planned to lay down but forgot to add to the report! The result is that instead of 22,000 tons used for this quarter, I only used 21,278 tons.

2379 tons
279 tons
1908 tons
174 tons

1908 tons
174 tons
218 tons

174 tons
174 tons
218 tons
1554 tons
174 tons
1,853 tons
279 tons

1554 tons
174 tons
1,853 tons
279 tons

1365 tons
279 tons

1347 tons
174 tons

1347 tons
174 tons
273 tons

174 tons
273 tons

273 tons

273 tons

Total 21,278

I hope no one objects to me adding those six vessels to this report to correct this error. Would be a shame to waste the 722 tons of materials like that.

... certainly hope that there are no more errors in the report. Onward to the Q2 report.
[edit: Yes there was another error there. Actually in the Q3/Q4 report of 1924. Seems that I laid down the DD3 Kirihime twice which was not the intention. So she should have been launched in Q4. I won't correct it there but will do so here. All those errors sure are giving me a headache!]

Japan’s Naval Developments – Q1/1925

A. Industrial Allocation

22/27 factories producing warship material = 22,000 t. No stockpiled materials available. 22,000 t are used, no materials stockpiled.

5/27 factories are dedicated to producing infrastructure material, = 0.5 points.

B. Infrastructure Development

Upgrade of Dock III-5A at Fukuoka to Type IV. Receives 0.5 for a total of 4.5 points.
(note that I typed Hakodate instead of Fukuoka in the original Q1/1925 report. Rather ridiculous as Hakodate has no docks that can be upgraded)

C. Naval Construction

Kure Navy Yard, Kure (Honshu)
Slip V-1A => BB Kii receives 2379 tons
Slip I-1A => Dr. Uranium Balance laid down 1/1/1925. Receives 174 tons.
Slip I-1B => General Piper laid down 1/1/1925. Receives 174 tons.
Dock V-1A => idle
Free-floating : DD2 Fubuki receives 279 tons. Completed 3/3/1925

Yokosuka Navy Yard, Yokosuka (Honshu)
Slip V-2A => BC Dairen laid down 1/1/1925. Receives 1908 tons.
Slip I-2A => DD3 Ellena Kunagecva receives 174 tons. Launched 1/7/1925
Slip I-2B => idle

Kawasaki Co, Kobe (Honshu)
Slip V-3A => BC Tai-Pei laid down 1/1/1925. Receives 1908 tons.
Slip II-3A => idle
Slip I-3A => Dr. Ian König laid down 1/1/1925. Receives 174 tons.
Dock II-3A => idle
Free-floating: DD3 Kirihime receives 174 tons.
Free-floating: GB Go ni Mk.2 I receives 218 tons. Completed 2/8/1925

Mitsubushi Co, Nagasaki (Kyushu)
Slip V-4A => DD3 Yury Vasyuchenko receives 174 tons. Launched 1/7/1925
Slip II-4A => idle
Slip I-4A => Dr. Bit Maessen laid down 1/1/1925. Receives 174 tons.
Dock II-4A => idle
Free-floating: DD3 Ninaris receives 174 tons.
Free-floating: GB Go ni Mk.2 II receives 218 tons. Completed 2/9/1925

Fukuoka Navy Yard, Fukuoka (Kyushu)
Slip III-5A => CA Rashomon laid down 1/1/1925. Receives 1554 tons.
Slip II-5A => idle
Slip I-5A => Dr. Jog Kersher laid down 1/1/1925. Receives 174 tons.
Dock III-5A => Upgrading to type IV.
Free-floating: DD3 Belkut receives 174 tons.
Free-floating: CA Miyazawa Yukino receives 1,853 tons.
Free-floating: DD2 Shirayuki receives 279 tons. Completed 3/4/1925.

Hakodate Navy Yard, Hakodate (Hokkaido)
Slip III-6A => CA Yojimbo laid down 1/1/1925. Receives 1554 tons.
Slip II-6A => idle
Slip I-6A => Commander Meia Toccata laid down 1/1/1925. Receives 174 tons.
Free-floating: DD3 Syndra receives 174 tons.
Free-floating: CA Sakura Tsubaki receives 1,853 tons.
Free-floating: DD2 Hatsuyuki receives 279 tons. Completed 3/3/1925

Aomori Navy Yard, Aomori (Honshu)
Slip III-7A => CDS Atatake receives 1365 tons. Launched 1/28/1925
Slip I-7A => idle
Dock I-7A => idle
Free-floating: DD2 Murakumo receives 279 tons. Completed 3/2/1925

Kagoshima Navy Yard, Kagoshima (Kyushu)
Slip III-8A => CL Tange laid down 1/1/1925. Receives 1347 tons.
Slip I-8A => idle
Dock I-8A => idle
Slip 0-8A => idle
Slip 0-8B => idle
Dock 0-8A => idle
Free-floating: DD3 Corona receives 174 tons.

Wakayama Navy Yard, Wakayama (Honshu)
Slip III-9A => CL Horie laid down 1/1/1925. Receives 1347 tons.
Slip I-9A => idle
Dock I-9A => idle
Free-floating: DD3 Lapis receives 174 tons.
Free-floating: DD2 Akatsuki receives 273 tons. Completed 3/5/1925

Tokushima Navy Yard, Tokushima (Shikoku)
Slip III-10A => idle
Slip I-10A => idle
Dock I-10A => idle
Free-floating: DD3 Hugtrang receives 174 tons.
Free-floating: DD2 Hibiki receives 273 tons. Completed 3/4/1925

Niigata Navy Yard, Niigata (Honshu)
Slip I-11A => idle
Slip I-11B => idle
Dock III-11A => idle
Free-floating: DD2 Inazuma receives 273 tons. Completed 3/3/1925

Niihama Navy Yard, Niihama (Shikoku)
Slip I-12A => idle
Slip I-12B => idle
Dock III-12A => idle
Free-floating: DD2 Ikazuchi receives 273 tons. Completed 3/4/1925

D. Transactions

none.

E. Other Notes

Go ni Mk.2 I and Go ni Mk.2 II (Go ni Mk.2 class) started shakedown cruises.
Fubuki, Shirayuki, Hatsuyuki and Murakumo (Fubuki class) started shakedown cruises.
Akatsuki, Hibiki, Inazuma and Ikazuchi (Akatsuki class) started shakedown cruises.

Go ni Mk.1 III, VI, V and VI (Go ni Mk.1 class) complete shakedown cruises.

New units laid down this quarter:
Dairen and Tai’Pei of the Dairen class require 28787 tons and 38 months.
Rashomon and Yojimbo of the Rashomon class require 10092 tons and 19.5 months.
Tange and Horie of the Tange class require 7631 tons and 17 months.

F. Updated Order of Battle, 31/3/25

Note: Y)+Z = completed (under repair/refit) + under construction

Limited warships:
Battleships: 6(0)+1
Aircraft Carriers: 3(0)+0
Heavy Cruisers: 4(0)+2
Light Cruisers: 14(0)+0
Destroyers class 1: 0(0)+0
Destroyers class 2: 30(0)+0
Submarines: 7(0)+0
Coast Defense Vessels: 3(0)+1
Museum ships: 2(0)+0

Non-limited Warships
Destroyers class 3: 175(0)+15
Gunboats: 32(0)+0
Minelayers: 27(0)+0
Minesweepers: 18(0)+0
Submarine Chasers class 1: 30(0)+0
Submarine Chasers class 2: 42(0)+0
Corvettes: 30(0)+0

Auxiliaries
Ammunition ships: 3(0)+0
Oilers: 9(0)+0
Cargo ships: 32(0)+0
Transport ships: 16(0)+0
Tenders: 7(0)+0
Repair ships: 5(0)+0
Netlayer and target towing vessel: 4(0)+0
Naval Tugs: 12(0)+0