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Error free?? I certainly hope so.

Japan’s Naval Developments – Q2/1925

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

Completing upgrade of Dock III-5A at Fukuoka to Type IV. Receives 0.5 for a total of 5 points.

C. Naval Construction

Kure Navy Yard, Kure (Honshu)
Slip V-1A => BB Kii receives 2384 tons
Slip I-1A => Dr. Uranium Balance receives 174 tons. Launched 5/3/1925
Slip I-1B => General Piper receives 174 tons. Launched 5/3/1925
Dock V-1A => idle

Yokosuka Navy Yard, Yokosuka (Honshu)
Slip V-2A => BC Dairen receives 2640 tons.
Slip I-2A => idle
Slip I-2B => idle
Free-floating: DD3 Ellena Kunagecva receives 174 tons.

Kawasaki Co, Kobe (Honshu)
Slip V-3A => BC Tai-Pei receives 2640 tons.
Slip II-3A => idle
Slip I-3A => Dr. Ian König receives 174 tons. Launched 5/3/1925
Dock II-3A => idle
Free-floating: DD3 Kirihime receives 59 tons. Completed 5/10/1925

Mitsubushi Co, Nagasaki (Kyushu)
Slip V-4A => idle
Slip II-4A => idle
Slip I-4A => Dr. Bit Maessen receives 174 tons. Launched 5/3/1925
Dock II-4A => idle
Free-floating: DD3 Yury Vasyuchenko receives 174 tons.
Free-floating: DD3 Ninaris receives 59 tons. Completed 5/10/1925

Fukuoka Navy Yard, Fukuoka (Kyushu)
Slip III-5A => CA Rashomon receives 1554 tons.
Slip II-5A => idle
Slip I-5A => Dr. Jog Kersher receives 174 tons. Launched 5/3/1925
Dock III-5A => Completing upgrade to type IV.
Free-floating: DD3 Belkut receives 59 tons. Completed 5/10/1925
Free-floating: CA Miyazawa Yukino receives 1,853 tons.

Hakodate Navy Yard, Hakodate (Hokkaido)
Slip III-6A => CA Yojimbo receives 1554 tons.
Slip II-6A => idle
Slip I-6A => Commander Meia Toccata receives 174 tons. Launched 5/3/1925
Free-floating: DD3 Syndra receives 59 tons. Completed 5/10/1925
Free-floating: CA Sakura Tsubaki receives 1,853 tons.

Aomori Navy Yard, Aomori (Honshu)
Slip III-7A => CV Chosen laid down 4/1/1925. Receives 990 tons.
Slip I-7A => idle
Dock I-7A => idle
Free-floating: CDS Atatake receives 1365 tons.

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 59 tons. Completed 5/10/1925

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 59 tons. Completed 5/10/1925

Tokushima Navy Yard, Tokushima (Shikoku)
Slip III-10A => CV Formosa laid down 4/1/1925. Receives 990 tons.
Slip I-10A => idle
Dock I-10A => idle
Free-floating: DD3 Hugtrang receives 59 tons. Completed 5/10/1925

Niigata Navy Yard, Niigata (Honshu)
Slip I-11A => idle
Slip I-11B => idle
Dock III-11A => idle

Niihama Navy Yard, Niihama (Shikoku)
Slip I-12A => idle
Slip I-12B => idle
Dock III-12A => idle

D. Transactions

none.

E. Other Notes

Syndra, Belkut, Kirihime, Ninaris, Corona, Lapis and Hugtrang (FSS: F class) starting shakedown cruises.
Go ni Mk.2 I and Go ni Mk.2 II (Go ni Mk.2 class) on shakedown cruises.
Fubuki, Shirayuki, Hatsuyuki and Murakumo (Fubuki class) on shakedown cruises.
Akatsuki, Hibiki, Inazuma and Ikazuchi (Akatsuki class) on shakedown cruises.

New units laid down this quarter:
Chosen and Formosa of the Chosen class require 17708 tons and 27 months.

F. Updated Order of Battle, 30/6/25

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

I wasn't quite sure about the displacement we agreed upon above which a ship needs a torpedo bulkhead so to prevent a certain person (right Hooman) from pointing out to me that this vessel should have a torpedo bulkhead, I added one.
:-)


Chosen, "Japan" Carrier laid down 1925

Displacement:
17,708 t light; 18,154 t standard; 20,240 t normal; 21,909 t full load

Dimensions: Length overall / water x beam x draught
706.38 ft / 700.00 ft x 80.00 ft x 23.00 ft (normal load)
215.30 m / 213.36 m x 24.38 m x 7.01 m

Armament:
8 - 4.13" / 105 mm guns (4x2 guns), 36.00lbs / 16.33kg shells, 1921 Model
Dual purpose guns in turrets (on barbettes)
on side ends, evenly spread, 2 raised mounts - superfiring
8 - 2.95" / 75.0 mm guns (4x2 guns), 12.00lbs / 5.44kg shells, 1921 Model
Dual purpose guns in turrets (on barbettes)
on side ends, evenly spread
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
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 430 lbs / 195 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 570.50 ft / 173.89 m 10.73 ft / 3.27 m
Ends: Unarmoured
Main Belt covers 125 % of normal length

- Torpedo Bulkhead:
1.00" / 25 mm 570.50 ft / 173.89 m 21.11 ft / 6.43 m

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

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 144,432 shp / 107,746 Kw = 33.00 kts
Range 10,000nm at 15.00 kts (Bunkerage = 3,754 tons)

Complement:
847 - 1,102

Cost:
£4.324 million / $17.296 million

Distribution of weights at normal displacement:
Armament: 54 tons, 0.3 %
Armour: 3,794 tons, 18.7 %
- Belts: 995 tons, 4.9 %
- Torpedo bulkhead: 446 tons, 2.2 %
- Armament: 136 tons, 0.7 %
- Armour Deck: 2,169 tons, 10.7 %
- Conning Tower: 48 tons, 0.2 %
Machinery: 4,689 tons, 23.2 %
Hull, fittings & equipment: 6,146 tons, 30.4 %
Fuel, ammunition & stores: 2,532 tons, 12.5 %
Miscellaneous weights: 3,025 tons, 14.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,494 lbs / 6,574 Kg = 410.3 x 4.1 " / 105 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 4.5 ft / 1.4 m
Roll period: 15.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 1.06

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 8.75 : 1
'Natural speed' for length: 26.46 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 66
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (20 %): 21.00 ft / 6.40 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: 21.07 ft / 6.42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 125.3 %
- Above water (accommodation/working, high = better): 177.8 %
Waterplane Area: 39,082 Square feet or 3,631 Square metres
Displacement factor (Displacement / loading): 122 %
Structure weight / hull surface area: 109 lbs/sq ft or 530 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.00
- 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

Space for 55 planes

Quoted

I wasn't quite sure about the displacement we agreed upon above which a ship needs a torpedo bulkhead so to prevent a certain person (right Hooman) from pointing out to me that this vessel should have a torpedo bulkhead, I added one.

I just put one on anything with a beam of over 80ft/25m.