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Japan's Naval Developments - Q1/1933

A. Industrial Allocation

27/27 factories producing warship material = 27,000 t. 24,717 tons stockpiled materials available. And again, 350 tons "found". Total materials available: 52,067 t. 38,301 t are used. 13,766 t materials stockpiled.

0/27 factories are dedicated to producing infrastructure material, = 0x 0.1 = 0.0 points.

B. Infrastructure Development

None.

C. Naval Construction


Kure Navy Yard, Kure (Honshu)
Slip V-1A => Sumeragi Subaru receives 1125 tons. Launched 1/1/1933. Arashio laid down 2/1/1933. Receives 450 tons.
Slip I-1A => Mutsuki laid down 1/1/1933. Receives 540 tons.
Slip I-1B => Satsuki laid down 1/1/1933. Receives 540 tons.
Dock V-1A => Kisarigi laid down 1/1/1933. Receives 540 tons.
Free-floating: Chitose receives 1728 tons.

Yokosuka Navy Yard, Yokosuka (Honshu)
Slip V-2A => Sumeragi Hokuto receives 1125 tons. Launched 1/1/1933. Kuroshio laid down 2/1/1933. Receives 450 tons.
Slip I-2A => Yayoi laid down 1/1/1933. Receives 540 tons.
Slip I-2B => Uzuki laid down 1/1/1933. Receives 540 tons.
Dock 0-2A => idle
Free-floating: Chiyodo receives 1728 tons.

Kawasaki Co, Kobe (Honshu)
Slip V-3A => Ginchiyo laid down 1/1/1933. Receives 2340 tons.
Slip II-3A => Rina Inbaasu laid down 1/1/1933. Receives 1095 tons.
Slip I-3A => Fumizuki laid down 1/1/1933. Receives 540 tons.
Dock II-3A => Kikuzuki laid down 1/1/1933. Receives 540 tons.
Free-floating: Zagato receives 0 tons.

Mitsubushi Co, Nagasaki (Kyushu)
Slip V-4A => Nouhime laid down 1/1/1933. Receives 2340 tons.
Slip II-4A => Shiro-hebi no Naaga laid down 1/1/1933. Receives 1095 tons.
Slip I-4A => Minazuki laid down 1/1/1933. Receives 540 tons.
Dock II-4A => Sakurazuka Seishirou receives 1125 tons. Launched 1/1/1933. Oyashio laid down 2/1/1933. Receives 450 tons.
Free-floating: Emeraude receives 0 tons.

Fukuoka Navy Yard, Fukuoka (Kyushu)
Slip III-5A => Zerugadisu Gureiwaazu laid down 1/1/1933. Receives 1095 tons.
Slip II-5A => Gaorii Gaburiefu laid down 1/1/1933. Receives 1095 tons.
Slip I-5A => Mikazuki laid down 1/1/1933. Receives 540 tons.
Dock IV-5A => Oichi laid down 1/1/1933. Receives 2340 tons.

Hakodate Navy Yard, Hakodate (Hokkaido)
Slip III-6A => Shirufiru Nerusu Raada laid down 1/1/1933. Receives 1095 tons.
Slip II-6A => Ameria Uiru Tesura Seiruun laid down 1/1/1933. Receives 1095 tons.
Slip I-6A => Nagatsuki laid down 1/1/1933. Receives 540 tons.

Aomori Navy Yard, Aomori (Honshu)
Slip III-7A => Varugaavu laid down 1/1/1933. Receives 1095 tons.
Slip I-7A => Yuzuki laid down 1/1/1933. Receives 540 tons.
Dock I-7A => Mochizuki laid down 1/1/1933. Receives 540 tons.

Kagoshima Navy Yard, Kagoshima (Kyushu)
Slip III-8A => Firia uru Koputo laid down 1/1/1933. Receives 1095 tons.
Slip I-8A => Akizuki laid down 1/1/1933. Receives 540 tons.
Dock I-8A => Teruzuki laid down 1/1/1933. Receives 540 tons.
Slip 0-8A => idle
Slip 0-8B => idle
Dock 0-8A => idle

Wakayama Navy Yard, Wakayama (Honshu)
Slip III-9A => Zerosu laid down 1/1/1933. Receives 1095 tons.
Slip I-9A => Suzutsuki laid down 1/1/1933. Receives 540 tons.
Dock I-9A => Minegumo laid down 1/1/1933. Receives 450 tons.

Tokushima Navy Yard, Tokushima (Shikoku)
Slip III-10A => Maruchina Zoana Meru Naburachirowa laid down 1/1/1933. Receives 1095 tons.
Slip I-10A => Asagumo laid down 1/1/1933. Receives 450 tons.
Dock I-10A => Natsugumo laid down 1/1/1933. Receives 450 tons.

Niigata Navy Yard, Niigata (Honshu)
Slip I-11A => Yamagumo laid down 1/1/1933. Receives 450 tons.
Slip I-11B => Arare laid down 1/1/1933. Receives 450 tons.
Dock III-11A => Kasumi laid down 1/1/1933. Receives 450 tons.

Niihama Navy Yard, Niihama (Shikoku)
Slip I-12A => Asashio laid down 1/1/1933. Receives 450 tons.
Slip I-12B => Mishishio laid down 1/1/1933. Receives 450 tons.
Dock III-12A => Oshio laid down 1/1/1933. Receives 450 tons.


D. Transactions
None

E. Other Notes
The Flight Deck Casino continuing shakedown cruise.
IC 81-100 completing shakedown cruises.
IC 113-125 completing shakedown cruises.
IO 15-20 continuing shakedown cruises.
IO 21-28 continuing shakedown cruises.
PT-111-115 completing shakedown cruises.
PBR 98-101 completing shakedown cruises.

New units laid down this quarter:
Ginchiyo, Nouhime and Oichi (Tachibana class, Battlecruiser) each requiring 33,460 tons and 42.5 months.
Rina Inbaasu, Shiro-hebi no Naaga, Gaorii Gaburiefu, Ameria Uiru Tesura Seiruun, Zerugadisu Gureiwaazu, Shirufiru Nerusu Raada, Varugaavu, Firia uru Koputo, Zerosu, Maruchina Zoana Meru Naburachirowa (Inbaasu class, Light Cruiser) each requiring 5437 tons and 14.5 months.
Mutsuki, Satsuki, Kisarigi, Yayoi, Uzuki, Fumizuki, Kikuzuki, Minazuki, Mikazuki, Nagatsuki, Yuzuki, Mochizuki, Akizuki, Teruzuki and Suzutsuki (Mutsuki class, Type A Destroyer) each requiring 1964 tons and 11 months.
Kasumi, Minegumo, Asagumo, Natsugumo, Yamagumo and Arare (Kasumi Type 'A' class, Type B Destroyer) each requiring 1594 tons and 11 months.
Asashio, Michishio, Oshio, Arashio, Kuroshio and Oyashio (Kasumi Type 'B' class, Type B Destroyer) each requiring 1585 tons and 11 months.

Repairs.
None

Refits
None

F. Updated Order of Battle, 3/31/33

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

Limited warships:
Battleships: 9(0)+3
Aircraft Carriers: 4(0)+2
Heavy Cruisers: 9(0)+0
Light Cruisers: 26(0)+12
Destroyer Leader: 18(0)+0
Destroyers class 1: 0(0)+15
Destroyers class 2: 62(0)+12
Submarines: 296(0)+0
Coast Defense Vessels: 12(0)+0
Training carrier: 1(0)+0
Training Cruisers: 0(0)+3

Non-limited ships
Destroyers class 3: 223(0)+0
Gunboats: 46(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
Patrol boats: 111(0)+0
MPV: 9(0)+0
CCB: 10(0)+0
MTB: 115(0)+0

Auxiliaries
Ammunition ships: 3(0)+0
Oilers: 9(0)+0
Cargo ships: 31(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

Special
Exploration ships: 2(0)+0
Museum ships: 4(0)+0

Chosen's Naval Developments - Q1/1933

A. Industrial Allocation

0/4 factories producing warship material = 0 t. 0t stockpiled materials available. 0 t are used, 0 tons materials stockpiled.

4/4 factories are dedicated to producing infrastructure material = 0.4 pts.

B. Infrastructure Development
0.4 points are transferred to COSINE

C. Naval Construction

Ryojun
S1: idle
D0: idle
D1: idle

Dairen
D0: idle
D1: idle
D2: idle

D. Transactions
None

E. Other Notes

New units laid down this quarter:
None

F. Updated Order of Battle, 3/31/33

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

Battle Cruiser: 1(0)+0
Carrier: 1(0)+0
Heavy Cruiser: 1(0)+0
Armored Cruiser: 1(0)+0
1st class Cruiser: 2(0)+0
Light Cruiser: 3(0)+0
2nd class Cruiser: 3(0)+0
Protected Cruiser: 4(0)+0
Gunboats: 2(1)+0
River Gunboats: 2(0)+0
Destroyers 2nd class: 13(0)+0
Destroyers 3rd class: 6(0)+0
TPB 1st class: 6(0)+0
TPB 2nd class: 7(0)+0

Formosa's Naval Developments - Q1/1933

A. Industrial Allocation

0/4 factories producing warship material = 0 t. 0 tons stockpiled materials available. 0 t are used, 0 tons materials stockpiled.

4/4 factories are dedicated to producing infrastructure material = 0.4 pts.

B. Infrastructure Development
0.4 points are transferred to COSINE

C. Naval Construction

Kaoshiun
D0: idle
D0: idle
D1: idle

Tahei
D0: idle
D1: idle
D2: idle

D. Transactions
None

E. Other Notes

New units laid down this quarter:
None

F. Updated Order of Battle, 3/31/33

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

Battle Cruiser: 1(0)+0
Carrier: 1(0)+0
Heavy Cruiser: 1(0)+0
Armored Cruiser: 2(0)+0
1st class Cruiser: 1(0)+0
Light Cruiser: 3(0)+0
2nd class Cruiser: 1(0)+0
Protected Cruiser: 3(0)+0
Gunboats: 2(0)+0
River gunboat: 1(0)+0
Destroyers 2nd class: 11(0)+0
Destroyers 3rd class: 3(0)+0
TPB 1st class: 5(0)+0
TPB 2nd class: 7(0)+0

Pacifica's Naval Developments - Q1/1933

A. Industrial Allocation

0/1 factories producing warship material = 0 t. 0 tons stockpiled materials available. 0 t are used, 0 tons materials stockpiled.

1/1 factories are dedicated to producing infrastructure material = 0.1 pts.

B. Infrastructure Development
0.1 points are transferred to COSINE

C. Naval Construction

Agana (Guam)
D1A: idle
D1B: idle
D0: idle

D. Transactions
None

E. Other Notes

New units laid down this quarter:
None

F. Updated Order of Battle, 3/31/33

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

Armored Cruiser: 1(0)+0
Light Cruiser: 2(0)+0
Destroyers: 3(0)+0
TPB/DDE: 2(0)+0

(You've seen her, but I always standard add all designs to the report thread)

Tachibana, Japan Battle Cruiser laid down 1933

Displacement:
33,460 t light; 35,148 t standard; 38,181 t normal; 40,607 t full load

Dimensions: Length overall / water x beam x draught
821.26 ft / 800.00 ft x 90.00 ft x 32.00 ft (normal load)
250.32 m / 243.84 m x 27.43 m x 9.75 m

Armament:
6 - 14.96" / 380 mm guns (3x2 guns), 2,000.00lbs / 907.18kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
22 - 5.12" / 130 mm guns (11x2 guns), 65.00lbs / 29.48kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 7 raised mounts - superfiring
32 - 1.57" / 40.0 mm guns (4x8 guns), 2.00lbs / 0.91kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
30 - 0.98" / 25.0 mm guns (10x3 guns), 0.57lbs / 0.26kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
32 - 0.52" / 13.2 mm guns (8x4 guns), 0.09lbs / 0.04kg shells, 1930 Model
Machine guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 13,514 lbs / 6,130 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.0" / 330 mm 508.53 ft / 155.00 m 13.78 ft / 4.20 m
Ends: Unarmoured
Main Belt covers 98 % of normal length

- Torpedo Bulkhead:
1.77" / 45 mm 508.53 ft / 155.00 m 29.86 ft / 9.10 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.2" / 360 mm 6.69" / 170 mm 13.4" / 340 mm
2nd: 3.00" / 76 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm 1.00" / 25 mm -
4th: 1.00" / 25 mm 1.00" / 25 mm -
5th: 0.50" / 13 mm 0.50" / 13 mm -

- Armour deck: 4.33" / 110 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 177,458 shp / 132,383 Kw = 33.00 kts
Range 7,500nm at 18.00 kts
Bunker at max displacement = 5,459 tons

Complement:
1,365 - 1,775

Cost:
£14.716 million / $58.863 million

Distribution of weights at normal displacement:
Armament: 1,450 tons, 3.8 %
Armour: 11,689 tons, 30.6 %
- Belts: 3,859 tons, 10.1 %
- Torpedo bulkhead: 995 tons, 2.6 %
- Armament: 2,454 tons, 6.4 %
- Armour Deck: 4,314 tons, 11.3 %
- Conning Tower: 67 tons, 0.2 %
Machinery: 5,171 tons, 13.5 %
Hull, fittings & equipment: 14,351 tons, 37.6 %
Fuel, ammunition & stores: 4,720 tons, 12.4 %
Miscellaneous weights: 800 tons, 2.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
51,701 lbs / 23,451 Kg = 30.9 x 15.0 " / 380 mm shells or 6.7 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 5.0 ft / 1.5 m
Roll period: 16.9 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.87
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.580
Length to Beam Ratio: 8.89 : 1
'Natural speed' for length: 32.29 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 4.00 ft / 1.22 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.90 ft / 9.11 m
- Forecastle (31 %): 20.10 ft / 6.13 m
- Mid (43 %): 25.00 ft / 7.62 m
- Quarterdeck (8 %): 18.10 ft / 5.52 m (25.00 ft / 7.62 m before break)
- Stern: 18.10 ft / 5.52 m
- Average freeboard: 23.88 ft / 7.28 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 97.7 %
- Above water (accommodation/working, high = better): 184.2 %
Waterplane Area: 53,842 Square feet or 5,002 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 181 lbs/sq ft or 885 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.26
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Riina, Japan Light Cruiser laid down 1933

Displacement:
5,437 t light; 5,851 t standard; 6,889 t normal; 7,719 t full load

Dimensions: Length overall / water x beam x draught
562.83 ft / 556.00 ft x 56.00 ft x 17.00 ft (normal load)
171.55 m / 169.47 m x 17.07 m x 5.18 m

Armament:
12 - 5.12" / 130 mm guns (6x2 guns), 65.00lbs / 29.48kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 4 raised mounts - superfiring
16 - 2.95" / 75.0 mm guns (8x2 guns), 12.00lbs / 5.44kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread, 4 raised mounts - superfiring
8 - 1.97" / 50.0 mm guns (2x4 guns), 4.00lbs / 1.81kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread
12 - 0.98" / 25.0 mm guns (4x3 guns), 0.57lbs / 0.26kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 0.52" / 13.2 mm guns (4x4 guns), 0.09lbs / 0.04kg shells, 1930 Model
Machine guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 1,012 lbs / 459 kg
Shells per gun, main battery: 450
8 - 24.0" / 609.6 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 405.00 ft / 123.44 m 9.00 ft / 2.74 m
Ends: Unarmoured
Main Belt covers 112 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.00" / 76 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 1.00" / 25 mm -
4th: 1.00" / 25 mm 1.00" / 25 mm -
5th: 0.50" / 13 mm 0.50" / 13 mm -

- Armour deck: 1.25" / 32 mm, Conning tower: 2.75" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 58,346 shp / 43,526 Kw = 32.00 kts
Range 11,000nm at 15.00 kts
Bunker at max displacement = 1,868 tons

Complement:
377 - 491

Cost:
£2.545 million / $10.179 million

Distribution of weights at normal displacement:
Armament: 131 tons, 1.9 %
Armour: 922 tons, 13.4 %
- Belts: 298 tons, 4.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 124 tons, 1.8 %
- Armour Deck: 479 tons, 7.0 %
- Conning Tower: 21 tons, 0.3 %
Machinery: 1,700 tons, 24.7 %
Hull, fittings & equipment: 2,484 tons, 36.1 %
Fuel, ammunition & stores: 1,451 tons, 21.1 %
Miscellaneous weights: 200 tons, 2.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,675 lbs / 3,481 Kg = 114.5 x 5.1 " / 130 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 2.8 ft / 0.9 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.34
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.456
Length to Beam Ratio: 9.93 : 1
'Natural speed' for length: 27.07 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.50 ft / 7.77 m
- Forecastle (20 %): 15.70 ft / 4.79 m
- Mid (50 %): 15.70 ft / 4.79 m
- Quarterdeck (15 %): 15.70 ft / 4.79 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 16.36 ft / 4.99 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101.2 %
- Above water (accommodation/working, high = better): 126.4 %
Waterplane Area: 20,727 Square feet or 1,926 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 80 lbs/sq ft or 393 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.88
- Longitudinal: 1.01
- Overall: 0.90
Caution: Hull subject to strain in open-sea
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

Mutsuki, Japan Large Destroyer laid down 1933

Displacement:
1,964 t light; 2,100 t standard; 2,339 t normal; 2,530 t full load

Dimensions: Length overall / water x beam x draught
400.43 ft / 390.00 ft x 35.00 ft x 14.28 ft (normal load)
122.05 m / 118.87 m x 10.67 m x 4.35 m

Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 65.00lbs / 29.48kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority aft, 1 raised mount aft - superfiring
8 - 1.97" / 50.0 mm guns (2x4 guns), 4.00lbs / 1.81kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, all amidships
18 - 0.98" / 25.0 mm guns (6x3 guns), 0.57lbs / 0.26kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 432 lbs / 196 kg
Shells per gun, main battery: 350
12 - 24.0" / 609.6 mm above water torpedoes

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 42,758 shp / 31,898 Kw = 34.00 kts
Range 4,750nm at 15.00 kts
Bunker at max displacement = 430 tons

Complement:
167 - 218

Cost:
£1.255 million / $5.020 million

Distribution of weights at normal displacement:
Armament: 55 tons, 2.4 %
Armour: 33 tons, 1.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 33 tons, 1.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,074 tons, 45.9 %
Hull, fittings & equipment: 677 tons, 28.9 %
Fuel, ammunition & stores: 375 tons, 16.0 %
Miscellaneous weights: 125 tons, 5.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
591 lbs / 268 Kg = 8.8 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.2 ft / 0.4 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.67
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.420
Length to Beam Ratio: 11.14 : 1
'Natural speed' for length: 22.58 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 4.00 ft / 1.22 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 14.70 ft / 4.48 m
- Mid (50 %): 14.70 ft / 4.48 m
- Quarterdeck (15 %): 14.70 ft / 4.48 m
- Stern: 14.40 ft / 4.39 m
- Average freeboard: 15.42 ft / 4.70 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 174.5 %
- Above water (accommodation/working, high = better): 30.9 %
Waterplane Area: 8,835 Square feet or 821 Square metres
Displacement factor (Displacement / loading): 76 %
Structure weight / hull surface area: 38 lbs/sq ft or 185 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.70
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor

Kasumi Type 'A', Japan Destroyer laid down 1933

Displacement:
1,594 t light; 1,684 t standard; 1,906 t normal; 2,084 t full load

Dimensions: Length overall / water x beam x draught
378.73 ft / 365.00 ft x 32.00 ft x 14.00 ft (normal load)
115.44 m / 111.25 m x 9.75 m x 4.27 m

Armament:
3 - 5.12" / 130 mm guns in single mounts, 65.00lbs / 29.48kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount
8 - 1.97" / 50.0 mm guns (2x4 guns), 4.00lbs / 1.81kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, all amidships
18 - 0.98" / 25.0 mm guns (6x3 guns), 0.57lbs / 0.26kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 237 lbs / 108 kg
Shells per gun, main battery: 350
12 - 24.0" / 610 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.00" / 76 mm 1.00" / 25 mm 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 38,512 shp / 28,730 Kw = 34.00 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 401 tons

Complement:
143 - 187

Cost:
£1.002 million / $4.010 million

Distribution of weights at normal displacement:
Armament: 30 tons, 1.6 %
Armour: 21 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 21 tons, 1.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 936 tons, 49.1 %
Hull, fittings & equipment: 557 tons, 29.2 %
Fuel, ammunition & stores: 312 tons, 16.4 %
Miscellaneous weights: 50 tons, 2.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
480 lbs / 218 Kg = 7.2 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 1.0 ft / 0.3 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.51
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.408
Length to Beam Ratio: 11.41 : 1
'Natural speed' for length: 21.84 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.00 ft / 7.01 m
- Forecastle (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 14.72 ft / 4.49 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 175.2 %
- Above water (accommodation/working, high = better): 10.4 %
Waterplane Area: 7,498 Square feet or 697 Square metres
Displacement factor (Displacement / loading): 75 %
Structure weight / hull surface area: 35 lbs/sq ft or 170 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 1.99
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor

Kasumi Type 'B', Japan Destroyer laid down 1933

Displacement:
1,585 t light; 1,684 t standard; 1,906 t normal; 2,084 t full load

Dimensions: Length overall / water x beam x draught
378.73 ft / 365.00 ft x 32.00 ft x 14.00 ft (normal load)
115.44 m / 111.25 m x 9.75 m x 4.27 m

Armament:
6 - 4.13" / 105 mm guns (3x2 guns), 34.00lbs / 15.42kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 1.97" / 50.0 mm guns (2x4 guns), 4.00lbs / 1.81kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, all amidships
18 - 0.98" / 25.0 mm guns (6x3 guns), 0.57lbs / 0.26kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 246 lbs / 112 kg
Shells per gun, main battery: 400
12 - 24.0" / 610 mm above water torpedoes

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 38,512 shp / 28,730 Kw = 34.00 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 401 tons

Complement:
143 - 187

Cost:
£1.004 million / $4.018 million

Distribution of weights at normal displacement:
Armament: 31 tons, 1.6 %
Armour: 22 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 22 tons, 1.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 933 tons, 49.0 %
Hull, fittings & equipment: 548 tons, 28.8 %
Fuel, ammunition & stores: 321 tons, 16.9 %
Miscellaneous weights: 50 tons, 2.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
467 lbs / 212 Kg = 13.2 x 4.1 " / 105 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 1.0 ft / 0.3 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.53
Seaboat quality (Average = 1.00): 1.03

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.408
Length to Beam Ratio: 11.41 : 1
'Natural speed' for length: 21.84 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.00 ft / 7.01 m
- Forecastle (20 %): 14.00 ft / 4.27 m
- Mid (50 %): 14.00 ft / 4.27 m
- Quarterdeck (15 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 14.72 ft / 4.49 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 175.8 %
- Above water (accommodation/working, high = better): 10.4 %
Waterplane Area: 7,498 Square feet or 697 Square metres
Displacement factor (Displacement / loading): 74 %
Structure weight / hull surface area: 34 lbs/sq ft or 168 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.95
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor

Those l:b ratios are really nice. Can´t wait to see your ships snap in two. :o)

I´ve also noticed both the A and B type DDs are ABOVE the 5% rule. So being definitively over 1600ts and even above our Gentlemen limits I assume both classes are rated under DD category A under the terms of the CT?

Quoted

Those l:b ratios are really nice. Can´t wait to see your ships snap in two. :o)

I have seen worse. ^_^

Quoted

I´ve also noticed both the A and B type DDs are ABOVE the 5% rule. So being definitively over 1600ts and even above our Gentlemen limits I assume both classes are rated under DD category A under the terms of the CT?

5% Japanese calculation error of 1684tons = 84.2 tons.
1684 tons - 84.2 tons = 1599.8 tons.

BTW, there are a few more Japanese vessels with the same 5% calculation error out there and already operational...

Edit examples:

Light cruisers
Aria class => 8,421 tons = operational
Zagato class => 8,421 tons = almost completed

Submarines
IO-II class => 1,578 tons = operational
IC-III Class => 473 tons = operational

Other
Senshi class => 2105 tons = operational

True Japan has other designs already built over the 5% GR, but to consistantly go a significant % overweight?

If you look at Atlantean cruisers that displace over the 8,000 ton limit the weight excess fluctuates with each design, ships with newer features, or are just generally a new design, tend to weigh more while follow on designs correct these flaws.

Quoted

True Japan has other designs already built over the 5% GR

As I already indicated, I am not over the 5%. Also, if it were a Gentleman Rule it would have been included in the "Design Rules for Gentlemen" thread. It is not there because it wasn't a Gentleman Rule in the beginning. It was never indicated as such until now.

Quoted

but to consistantly go a significant % overweight?

If the designers make calculations with the same error in there every time (for example, a 0.6 multiplier instead of a 0.64 multiplier), it will always be the same significant % overweight that you will end up with if you want to go for an exact tonnage.