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Japan's Naval Developments - Q2/1940

A. Industrial Allocation

27/27 factories producing warship material = 27,000 t. 5313 tons stockpiled materials available. 1160 tons transferred to Japan. Total materials available: 33,473 t. 26,469 t are used. 7004 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 => BB Muteki Nippon model receives 0 tons. Launched and completed 29-6-1940
Slip I-1A => idle.
Slip I-1B => idle.
Dock V-1A => CVA Junyo receives 600 tons.
Free-floating: BB Yamato receives 1500 tons.

Yokosuka Navy Yard, Yokosuka (Honshu)
Slip V-2A => CVA Hiyo receives 600 tons.
Slip I-2A => idle.
Slip I-2B => idle.
Dock 0-2A => idle.
Free-floating: BB Musashi receives 1500 tons.

Kawasaki Co, Kobe (Honshu)
Slip V-3A => BB Shinano receives 600 tons.
Slip II-3A => idle.
Slip I-3A => idle.
Dock II-3A => idle.
Free-floating: CA Myoko receives 1725 tons.


Mitsubushi Co, Nagasaki (Kyushu)
Slip V-4A => BB Echizen receives 600 tons.
Slip II-4A => idle.
Slip I-4A => idle.
Dock II-4A => idle.
Free-floating: CA Takao receives 1725 tons.


Fukuoka Navy Yard, Fukuoka (Kyushu)
Slip III-5A => Kaiyo laid down 4/1/1940. Receives 400 tons.
Slip II-5A => idle.
Slip I-5A => idle.
Dock IV-5A => Mexico’s Project “I see NOTHING! I know NOTHING!” commencing 4/1/1940, receives 1160 tons
Free-floating: CV Taiyo receives 1710 tons.

Hakodate Navy Yard, Hakodate (Hokkaido)
Slip III-6A => Ryujo laid down 4/1/1940. Receives 400 tons.
Slip II-6A => idle.
Slip I-6A => idle.
Free-floating: CV Unyo receives 1710 tons.

Aomori Navy Yard, Aomori (Honshu)
Slip III-7A => Ryuho laid down 4/1/1940. Receives 400 tons.
Slip I-7A => idle.
Dock I-7A => idle.
Free-floating: CV Chuyo receives 1710 tons.

Kagoshima Navy Yard, Kagoshima (Kyushu)
Slip III-8A => idle.
Slip I-8A => idle.
Dock I-8A => idle.
Slip 0-8A => idle.
Slip 0-8B => idle.
Dock 0-8A => idle.
Free-floating: CV Unryu receives 1654 tons.

Wakayama Navy Yard, Wakayama (Honshu)
Slip III-9A => idle.
Slip I-9A => idle.
Dock I-9A => idle.
Free-floating: CA Ashigara receives 1725 tons.

Tokushima Navy Yard, Tokushima (Shikoku)
Slip III-10A => idle.
Slip I-10A => I-304 laid down 4/1/1940. Receives 315 tons.
Dock I-10A => idle.
Free-floating: CA Maya receives 1725 tons.

Niigata Navy Yard, Niigata (Honshu)
Slip I-11A => I-300 laid down 4/1/1940. Receives 315 tons.
Slip I-11B => I-301 laid down 4/1/1940. Receives 315 tons.
Dock III-11A => CA Harugo receives 1725 tons. Launched 4/1/1940.

Niihama Navy Yard, Niihama (Shikoku)
Slip I-12A => I-302 laid down 4/1/1940. Receives 315 tons.
Slip I-12B => I-303 laid down 4/1/1940. Receives 315 tons.
Dock III-12A => CA Atago receives 1725 tons. Launched 4/1/1940.

Factory
-

D. Transactions
260 tons+900 tons from Mexico for (CENSORED) purposes.

E. Other Notes
Shokaku and Zuikaku continuing shakedown cruises.
Agano, Noshiro, Yahagi and Sakawa starting shakedown cruises.

New units laid down this quarter:
I-300, I-301, I-302, I-303 and I-304 (I-300 class), each requiring 1069 tons and 10.5 months.
Kaiyo and Ryujo (Taiyo class), each requiring 12521 tons and 22 months.
Ryuho (Unryu class), requiring 20149 tons and 29.5 months.


Repairs.
None

Refits
None.

F. Updated Order of Battle, 6/30/40

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

Battleships: 12(0)+5
Battlecruisers: 3(0)+0
Large Cruisers: 4(0)+0
Heavy Cruisers: 9(0)+8
Light Cruisers: 53(0)+0
Large Aircraft Carriers: 2(0)+2
Aircraft Carriers: 4(0)+2
Light Aircraft Carriers: 2(0)+5
Destroyer Leader: 18(0)+0
Destroyers class 1: 15(0)+0
Destroyers class 2: 74(0)+0
Destroyers class 3: 208(15)+0
Ocean Going Submarines: 41(0)+5
Coastal Submarines: 142(0)+0
Midget Submarines: 135(0)+0
Coast Defense Vessels: 12(0)+0
Training carrier: 1(0)+0
Training Cruisers: 3(0)+0
Gunboats: 38(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: 439(0)+0
Amphibious Warfare Ships 313(0)+0
Exploration ships: 2(0)+0
Museum ships: 4(0)+0

Foreign orders:
Classified Mexican order.

Chosen's Naval Developments - Q2/1940

A. Industrial Allocation

2/2 factories producing warship material = 2000 t. 0t stockpiled materials available. 2000t are used, 0 tons materials stockpiled.

0/2 factories are dedicated to producing infrastructure material = 0

B. Infrastructure Development
None.

C. Naval Construction

Ryojun
S2: SS CS-1 laid down 4/1/1940. Receives 700 tons.
S1: SS CS-2 laid down 4/1/1940. Receives 650 tons.
S0: SS CS-3 laid down 4/1/1940. Receives 650 tons.
D1: idle.
D1: idle.

D. Transactions
None

E. Other Notes

New units laid down this quarter:
CS-1, CS-2 and CS-3, each requiring 702 tons and 10 months.

F. Updated Order of Battle, 6/30/40

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
Monitor: 2(0)+0
Gunboats: 2(0)+0
River Gunboats: 7(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
Submarines: 0(0)+3

Pacifica's Naval Developments - Q2/1940

A. Industrial Allocation

1/1 factories producing warship material = 1000 t. 0 tons stockpiled materials available. 0 t are used, 0 tons materials stockpiled.

0/1 factories are dedicated to producing infrastructure material = 0.0

B. Infrastructure Development
None.

C. Naval Construction

Agana (Guam)
S0.5: SS P5 laid down 4/1/1940. Receives 150 tons. Launched 6/20/1940.
D1.5: SS P6 laid down 4/1/1940. Receives 150 tons. Launched 6/20/1940.
D1: SS P7 laid down 4/1/1940. Receives 150 tons. Launched 6/20/1940.
D0: SS P8 laid down 4/1/1940. Receives 150 tons. Launched 6/20/1940.
SS P1 receives 100 tons. Completed 6/5/1940.
SS P2 receives 100 tons. Completed 6/5/1940.
SS P3 receives 100 tons. Completed 6/5/1940.
SS P4 receives 100 tons. Completed 6/5/1940.

D. Transactions
None

E. Other Notes
P1, P2, P3 and P4 starting shakedown cruises.

New units laid down this quarter:
P5-P8, each requiring 350 tons and 5 months.

F. Updated Order of Battle, 6/30/40

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
Patrol Ships: 4(0)+0
Coastal Submarines 4(0)+4

I-300, Japan Submarine laid down 1940

Displacement:
1,069 t light; 1,099 t standard; 1,456 t normal; 1,742 t full load

Dimensions: Length overall / water x beam x draught
259.19 ft / 259.19 ft x 19.03 ft x 22.97 ft (normal load)
79.00 m / 79.00 m x 5.80 m x 7.00 m

Armament:
2 - 0.98" / 25.0 mm guns in single mounts, 0.57lbs / 0.26kg shells, 1940 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
Weight of broadside 1 lbs / 1 kg
Shells per gun, main battery: 1,500
4 - 21.0" / 533.4 mm submerged torpedo tubes (all forward)

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured
Upper: 1.69" / 43 mm 180.45 ft / 55.00 m 19.69 ft / 6.00 m (see below)

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 4,673 shp / 3,486 Kw = 19.00 kts
Range 10,000nm at 14.00 kts
Bunker at max displacement = 643 tons

Complement:
59 - 76

Cost:
£0.330 million / $1.320 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0%
Armour: 242 tons, 16.6%
- Belts: 242 tons, 16.6%
- Torpedo bulkhead: 0 tons, 0.0%
- Armament: 0 tons, 0.0%
- Armour Deck: 0 tons, 0.0%
- Conning Tower: 0 tons, 0.0%
Machinery: 125 tons, 8.6%
Hull, fittings & equipment: 702 tons, 48.2%
Fuel, ammunition & stores: 387 tons, 26.6%
Miscellaneous weights: 0 tons, 0.0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,592 lbs / 722 Kg = 3,340.3 x 1.0 " / 25 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 0.4 ft / 0.1 m
Roll period: 12.5 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: 0.450
Length to Beam Ratio: 13.62 : 1
'Natural speed' for length: 16.10 kts
Power going to wave formation at top speed: 40 %
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): 44.9%
- Above water (accommodation/working, high = better): 0.0%
Waterplane Area: 3,146 Square feet or 292 Square metres
Displacement factor (Displacement / loading): 296%
Structure weight / hull surface area: 102 lbs/sq ft or 496 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.82
- Longitudinal: 3.22
- Overall: 2.86
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

Upper belt used to sim ballast tank.
Speed (surface): 15.8 knots
Speed (submerged): 19 knots
Actual range (surface): 5,800nm at 14 knots
Range (submerged): 135nm at 3 knots
Diving depth: 286 feet
Test Depth (*): 358 feet
Emergency Depth: 458 feet
Crush Depth: 715 feet

Actual bunker size: 329 tons
10 Type 99 torpedoes: 18 tons (used bunker)
Ninjatousaya System: 10 tons (used bunker)
Increased Battery Capacity: 286 tons (used bunker)

(*) read: Limit of a crew member's life insurance.

CS1, Chosen Submarine laid down 1940

Displacement:
702 t light; 720 t standard; 810 t normal; 882 t full load

Dimensions: Length overall / water x beam x draught
175.00 ft / 175.00 ft x 24.00 ft x 15.00 ft (normal load)
53.34 m / 53.34 m x 7.32 m x 4.57 m

Armament:
1 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1940 Model
Dual purpose gun in deck mount
on centreline forward
2 - 0.98" / 25.0 mm guns (1x2 guns), 0.48lbs / 0.22kg shells, 1940 Model
Anti-aircraft guns in deck mount
on centreline amidships, all raised guns - superfiring
1 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1940 Model
Anti-aircraft gun in deck mount
on centreline amidships, 1 raised gun
Weight of broadside 14 lbs / 6 kg
Shells per gun, main battery: 200
5 - 21.0" / 533.4 mm submerged torpedo tubes (4 forward, 1 aft)

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.48" / 38 mm 15.00 ft / 4.57 m 15.00 ft / 4.57 m (see below)
Ends: Unarmoured
Main Belt covers 13% of normal length
Main belt does not fully cover magazines and engineering spaces

Machinery:
Diesel Internal combustion engines plus batteries,
Electric cruising motors plus geared drives, 2 shafts, 2,382 shp / 1,777 Kw = 17.00 kts
Range 8,500nm at 10.00 kts
Bunker at max displacement = 162 tons

Complement:
38 - 49

Cost:
£0.210 million / $0.840 million

Distribution of weights at normal displacement:
Armament: 2 tons, 0.2%
Armour: 32 tons, 3.9%
- Belts: 32 tons, 3.9%
- Torpedo bulkhead: 0 tons, 0.0%
- Armament: 0 tons, 0.0%
- Armour Deck: 0 tons, 0.0%
- Conning Tower: 0 tons, 0.0%
Machinery: 64 tons, 7.9%
Hull, fittings & equipment: 440 tons, 54.3%
Fuel, ammunition & stores: 108 tons, 13.3%
Miscellaneous weights: 165 tons, 20.4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
404 lbs / 183 Kg = 31.4 x 3.0 " / 75 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.6 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: 0.450
Length to Beam Ratio: 7.29 : 1
'Natural speed' for length: 13.23 kts
Power going to wave formation at top speed: 56 %
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): 101.2%
- Above water (accommodation/working, high = better): 0.0%
Waterplane Area: 2,679 Square feet or 249 Square metres
Displacement factor (Displacement / loading): 240%
Structure weight / hull surface area: 109 lbs/sq ft or 533 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.32
- Longitudinal: 3.39
- Overall: 3.33
Hull space for machinery, storage, compartmentation is adequate
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


Main belt used to sim 18 torpedoes (32 tons)
Diving depth: 333 feet
Test Depth: 416 feet
Emergency Depth: 533 feet
Crush Depth: 832 feet

Quoted

Originally posted by Rooijen10
I-300, Japan Submarine laid down 1940

Five years is just a wee bit early for this, don't you think?

Which was why I was initially a bit worried about posting it, but considering that the Italians already have 20 such subs already around (10 of them for about 8 sim years), I'm not worried about that.

http://wesworld.jk-clan.de/thread.php?postid=41779#post41779

Quoted

Originally posted by Rooijen10
Which was why I was initially a bit worried about posting it, but considering that the Italians already have 20 such subs already around (10 of them for about 8 sim years), I'm not worried about that.

http://wesworld.jk-clan.de/thread.php?postid=41779#post41779

In other words:
- You're pushing a design five years early "because someone else did it first".
- You're pushing a design five years early despite lacking the historical rationale for the historical design's adoption.
- You're trying to sim an electroboot in Springsharp and basing your submerged performance figures on... what, exactly?

I would strongly suggest that if you wish to push cutting edge submarine designs, you use Subsim rather than Springsharp as it can sim both submerged and surfaced performance.

In any case, the Aduas are hardly comparable; RA at least gave a rationale for his design theory, which you've not rebutted, nor did you provide your own for this design (other than "he started it").

Bzzz. Try again please.

I think concepts like this are why we have the Ship Design board, folks;

On one hand, While Subsim is being used by many players, it is technically /not/ the method required by the board rules, so I think criticising someone for not using it is unwarranted.

On the other, I do notice a couple of questionable elements to Walter's sim; The oil-fired boilers and steam turbines, for example, and how the stats are being derived.

I believe I've mentioned that before, but I'll repeat it again...

I would request that this design (and any other major designs, especially the 'innovative' ones) be posted in Ship Design for the kind of peer review and discussion the board was really founded around, rather than appended to industrial reports.