WesWorld

Data on Miscellaneous auxiliaries will appear here.


Miscellaneous ships in service.


CCB: 10

Daihatsu: 126 + 14 (from Akitsushima) = 140

Toku-Daihatsu: 40 + 8 (from Akitsushima) = 48

Shohatsu: 98 + 20 (from Akitsushima) = 118

T-100 Class: 14 (T-100 -- T-113)

T-200 Class: 24 (T-200 -- T-223)

Kinesaki class: 11. Kinesaki, Hayasaki, Shirasaki, Arasaki, Kiyosaki, Osaki, Hesaki, Kashizaki, Kuresaki, Misaki, Fujisaki.

Achizuri class: 2. Achizuri, Shioya.

Nagoya Maru class: 4. Nagoya Maru, Osaka Maru, Oita Maru, Toyama Maru.

Abida Maru class: 7. Abida Maru, Asira Maru, Aruka Maru, Akumaya Maru, Arinda Maru, Akuteon Maru, Atisu Maru.

Mara Maru class: 2. Mara Maru, Maro Maru.

Umi class: 1. Umi.

Akitsushima: 1 (for now). Akitsushima.

Heavy Landing Craft: 8 (from Akitsushima).

CCB, Japan Command Communication Boat laid down 1930

Displacement:
63 t light; 71 t standard; 74 t normal; 76 t full load

Dimensions: Length overall / water x beam x draught
59.85 ft / 56.00 ft x 17.50 ft x 3.42 ft (normal load)
18.24 m / 17.07 m x 5.33 m x 1.04 m

Armament:
1 - 1.97" / 50.0 mm guns in single mounts, 4.00lbs / 1.81kg shells, 1926 Model
Anti-aircraft gun in deck mount
on centreline forward
2 - 0.98" / 25.0 mm guns (1x2 guns), 0.57lbs / 0.26kg shells, 1926 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0.52" / 13.2 mm guns in single mounts, 0.09lbs / 0.04kg shells, 1930 Model
Machine guns in deck mounts
on side, all aft, all raised mounts - superfiring
16 - 0.45" / 11.4 mm guns in single mounts, 0.05lbs / 0.02kg shells, 1928 Model
Machine guns in deck mounts
on side, evenly spread
4 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1930 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 6 lbs / 3 kg
Shells per gun, main battery: 1,350

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.80" / 20 mm 27.00 ft / 8.23 m 4.70 ft / 1.43 m
Ends: 0.80" / 20 mm 7.50 ft / 2.29 m 2.00 ft / 0.61 m
21.50 ft / 6.55 m Unarmoured ends
Upper: 0.80" / 20 mm 48.75 ft / 14.86 m 3.85 ft / 1.17 m
Main Belt covers 74 % of normal length

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

- Armour deck: 0.25" / 6 mm, Conning tower: 4.00" / 102 mm

Machinery:
Diesel Internal combustion motors,
Direct drive, 2 shafts, 55 shp / 41 Kw = 8.50 kts
Range 1,000nm at 8.50 kts
Bunker at max displacement = 5 tons

Complement:
12 - 16

Cost:
£0.013 million / $0.050 million

Distribution of weights at normal displacement:
Armament: 1 tons, 1.0 %
Armour: 22 tons, 29.5 %
- Belts: 12 tons, 16.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 5.0 %
- Armour Deck: 4 tons, 5.5 %
- Conning Tower: 2 tons, 2.1 %
Machinery: 2 tons, 2.3 %
Hull, fittings & equipment: 28 tons, 38.5 %
Fuel, ammunition & stores: 11 tons, 15.2 %
Miscellaneous weights: 10 tons, 13.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
227 lbs / 103 Kg = 59.4 x 2.0 " / 50 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 0.5 ft / 0.2 m
Roll period: 10.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 0.78

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.770
Length to Beam Ratio: 3.20 : 1
'Natural speed' for length: 9.23 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 45.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 3.85 ft / 1.17 m
- Forecastle (20 %): 3.85 ft / 1.17 m
- Mid (50 %): 3.85 ft / 1.17 m
- Quarterdeck (15 %): 3.85 ft / 1.17 m
- Stern: 3.85 ft / 1.17 m
- Average freeboard: 3.85 ft / 1.17 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 40.7 %
- Above water (accommodation/working, high = better): 53.4 %
Waterplane Area: 873 Square feet or 81 Square metres
Displacement factor (Displacement / loading): 181 %
Structure weight / hull surface area: 27 lbs/sq ft or 130 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.30
- Longitudinal: 5.31
- Overall: 1.50
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Notes:
- 1/4 inch armored plating + bar armor.
- The 0.45 guns sim the crew's Thompsons.
- Additional weapons include several Type 10 grenade dischargers as well as two simple flamethrower turrets o nthe side.
- The 50mm and 25mm guns mounted on the CCB are the same 50mm and 25mm AA guns used on the bigger warships and thus are marked as AA guns. However they lack the proper elevation to be used as AA.



CCB, Japan Command Communication Boat laid down 1930 (1945 refit)

Displacement:
62 t light; 71 t standard; 74 t normal; 76 t full load

Dimensions: Length overall / water x beam x draught
59.85 ft / 56.00 ft x 17.50 ft x 3.42 ft (normal load)
18.24 m / 17.07 m x 5.33 m x 1.04 m

Armament:
1 - 1.57" / 40.0 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1945 Model
Anti-aircraft gun in deck mount
on centreline forward
2 - 0.98" / 25.0 mm guns (1x2 guns), 0.57lbs / 0.26kg shells, 1945 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0.52" / 13.2 mm guns in single mounts, 0.09lbs / 0.04kg shells, 1945 Model
Machine guns in deck mounts
on side, all aft, all raised mounts - superfiring
16 - 0.32" / 8.1 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1945 Model
Machine guns in deck mounts (= Type 2 SMGs for the crew)
on side, evenly spread
4 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1930 Model
Machine guns in deck mounts (= Detachable Type 2 LMGs)
on side, evenly spread
Weight of broadside 4 lbs / 2 kg
Shells per gun, main battery: 2,400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.80" / 20 mm 27.00 ft / 8.23 m 4.70 ft / 1.43 m
Ends: 0.80" / 20 mm 7.50 ft / 2.29 m 2.00 ft / 0.61 m
21.50 ft / 6.55 m Unarmoured ends
Upper: 0.80" / 20 mm 48.75 ft / 14.86 m 3.85 ft / 1.17 m
Main Belt covers 74% of normal length

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

- Armour deck: 0.25" / 6 mm, Conning tower: 4.00" / 102 mm

Machinery:
Diesel Internal combustion motors,
Direct drive, 2 shafts, 55 shp / 41 Kw = 8.50 kts
Range 1,000nm at 8.50 kts
Bunker at max displacement = 5 tons

Complement:
12 - 16

Cost:
£0.011 million / $0.046 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.6%
Armour: 21 tons, 28.9%
- Belts: 12 tons, 16.9%
- Torpedo bulkhead: 0 tons, 0.0%
- Armament: 3 tons, 4.4%
- Armour Deck: 4 tons, 5.5%
- Conning Tower: 2 tons, 2.1%
Machinery: 2 tons, 2.3%
Hull, fittings & equipment: 28 tons, 38.2%
Fuel, ammunition & stores: 12 tons, 16.5%
Miscellaneous weights: 10 tons, 13.6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
235 lbs / 106 Kg = 120.2 x 1.6 " / 40 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 0.5 ft / 0.2 m
Roll period: 10.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 0.79

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.770
Length to Beam Ratio: 3.20 : 1
'Natural speed' for length: 9.23 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 45.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 3.85 ft / 1.17 m
- Forecastle (20%): 3.85 ft / 1.17 m
- Mid (50%): 3.85 ft / 1.17 m
- Quarterdeck (15%): 3.85 ft / 1.17 m
- Stern: 3.85 ft / 1.17 m
- Average freeboard: 3.85 ft / 1.17 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 39.3%
- Above water (accommodation/working, high = better): 53.4%
Waterplane Area: 873 Square feet or 81 Square metres
Displacement factor (Displacement / loading): 194%
Structure weight / hull surface area: 26 lbs/sq ft or 129 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.32
- Longitudinal: 5.28
- Overall: 1.51
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

"The Flight Deck" Casino moved to "Light Aircraft Carriers".

Info taken from http://www3.plala.or.jp/takihome/ and wiki...


Daihatsu


Length (OA): 47 feet
Beam: 10 feet
Draught: 2.6 feet
Displacement: 9.5 tons
Propulsion: 1x Diesel, 60 hp
Speed: 9 knots
Range: 100 nm at 7.5 knots
Complement: 12
Capacity: 70 troops, 1 Type 86 Medium Tank, or 12 tons cargo
Built: 126


Toku-Daihatsu


Length (OA): 57.9 ft
Beam: 12.2 ft
Draught: 3.3 feet
Displacement: 17.5 tons
Propulsion: 2x Diesel, 120 hp
Speed: 10 knots
Range: 100 nm at 7.5 knots
Complement: 15
Capacity: 120 troops, 1 Type 90 Medium Tank, or 16.5 tons cargo
Built: 40


Shohatsu


Length (OA): 34.9 ft
Beam: 8 ft
Draught: 1.11 feet
Displacement: 3.75 tons
Propulsion: 1x Diesel, 60 hp
Speed: 7.5 knots
Range: 60 nm at 7.5 knots
complement: 5
Capacity: 30 troops or 3 tons cargo
Built: 98

T 100, Japan Landing Ship laid down 1937

Built: 14 (T-100 -- T-113)

Displacement:
798 t light; 826 t standard; 950 t normal; 1,050 t full load

Dimensions: Length overall / water x beam x draught
265.09 ft / 246.06 ft x 29.86 ft x 9.84 ft (normal load)
80.80 m / 75.00 m x 9.10 m x 3.00 m

Armament:
1 - 2.95" / 75.0 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1937 Model
Dual purpose gun in a deck mount with hoist
on centreline aft
6 - 0.98" / 25.0 mm guns (2x3 guns), 0.57lbs / 0.26kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all amidships
6 - 0.98" / 25.0 mm guns (3x2 guns), 0.57lbs / 0.26kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on centreline, all aft
3 - 0.98" / 25.0 mm guns in single mounts, 0.57lbs / 0.26kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on centreline, all forward
Weight of broadside 21 lbs / 9 kg
Shells per gun, main battery: 500

Machinery:
Diesel Internal combustion motors,
Geared drive, 3 shaft, 2,816 shp / 2,101 Kw = 18.00 kts
Range 4,000nm at 15.00 kts
Bunker at max displacement = 224 tons

Complement:
85 - 111

Cost:
£0.224 million / $0.894 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.3%
Machinery: 78 tons, 8.2%
Hull, fittings & equipment: 343 tons, 36.1%
Fuel, ammunition & stores: 152 tons, 16.0%
Miscellaneous weights: 375 tons, 39.5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,705 lbs / 773 Kg = 132.4 x 3.0 " / 75 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 0.9 ft / 0.3 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised quarterdeck
Block coefficient: 0.460
Length to Beam Ratio: 8.24 : 1
'Natural speed' for length: 15.69 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 45.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.75 ft / 4.80 m
- Forecastle (5%): 17.39 ft / 5.30 m
- Mid (40%): 9.84 ft / 3.00 m
- Quarterdeck (15%): 16.40 ft / 5.00 m (9.84 ft / 3.00 m before break)
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 12.49 ft / 3.81 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73.0%
- Above water (accommodation/working, high = better): 116.1%
Waterplane Area: 4,510 Square feet or 419 Square metres
Displacement factor (Displacement / loading): 172%
Structure weight / hull surface area: 39 lbs/sq ft or 190 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.88
- Longitudinal: 3.29
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather



14 7t tanks or 9 15t tanks or 7 7t tanks and 218 tons cargo or 120 troops and 67t cargo.

T-200, Japan Landing ship laid down 1937
[SIZE=1](based on the German Marinefährprahm)[/SIZE]
Built: 24 (T-200 -- T-223)


Displacement:
223 t light; 229 t standard; 233 t normal; 236 t full load

Dimensions: Length overall / water x beam x draught
158.74 ft / 145.00 ft x 21.50 ft x 4.75 ft (normal load)
48.38 m / 44.20 m x 6.55 m x 1.45 m

Armament:
1 - 2.95" / 75.0 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1937 Model
Dual purpose gun in a deck mount with hoist
on centreline forward
2 - 0.98" / 25.0 mm guns in single mounts, 0.57lbs / 0.26kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, all aft
Weight of broadside 13 lbs / 6 kg
Shells per gun, main battery: 200

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 162 shp / 121 Kw = 10.00 kts
Range 1,075nm at 7.50 kts
Bunker at max displacement = 7 tons

Complement:
29 - 38

Cost:
£0.054 million / $0.215 million

Distribution of weights at normal displacement:
Armament: 2 tons, 0.7%
Machinery: 4 tons, 1.9%
Hull, fittings & equipment: 76 tons, 32.8%
Fuel, ammunition & stores: 10 tons, 4.4%
Miscellaneous weights: 140 tons, 60.2%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
355 lbs / 161 Kg = 27.6 x 3.0 " / 75 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 0.5 ft / 0.2 m
Roll period: 12.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 6.74 : 1
'Natural speed' for length: 12.04 kts
Power going to wave formation at top speed: 35 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 70.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 5.00 ft / 1.52 m
- Forecastle (20%): 5.00 ft / 1.52 m
- Mid (50%): 5.00 ft / 1.52 m
- Quarterdeck (15%): 5.00 ft / 1.52 m
- Stern: 5.00 ft / 1.52 m
- Average freeboard: 5.00 ft / 1.52 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 78.1%
- Above water (accommodation/working, high = better): 71.5%
Waterplane Area: 2,176 Square feet or 202 Square metres
Displacement factor (Displacement / loading): 143%
Structure weight / hull surface area: 26 lbs/sq ft or 128 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.25
- Overall: 1.02
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily

200 Soldiers or 140t of equipment, including tanks.

Kinesaki, Japan Food supply ship laid down 1941, converted in 1943

Ships: 11. Kinesaki, Hayasaki, Shirasaki, Arasaki, Kiyosaki, Osaki, Hesaki, Kashizaki, Kuresaki, Misaki, Fujisaki.

Displacement:
580 t light; 612 t standard; 1,050 t normal; 1,401 t full load

Dimensions: Length overall / water x beam x draught
199.47 ft / 195.00 ft x 30.80 ft x 10.20 ft (normal load)
60.80 m / 59.44 m x 9.39 m x 3.11 m

Armament:
6 - 1.57" / 40.0 mm guns (1x6 guns), 2.00lbs / 0.91kg shells, 1941 Model
Anti-aircraft guns in deck mount
on centreline forward, all raised guns - superfiring
2 - 0.52" / 13.2 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1941 Model
Machine guns in deck mounts
on side, all aft, all raised mounts - superfiring
Weight of broadside 12 lbs / 6 kg
Shells per gun, main battery: 1,500

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
2nd: 0.50" / 13 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,730 shp / 1,290 Kw = 15.00 kts
Range 23,195nm at 12.00 kts
Bunker at max displacement = 790 tons

Complement:
91 - 119

Cost:
£0.173 million / $0.691 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0.1 %
Armour: 1 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 46 tons, 4.4 %
Hull, fittings & equipment: 282 tons, 26.9 %
Fuel, ammunition & stores: 470 tons, 44.8 %
Miscellaneous weights: 250 tons, 23.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,209 lbs / 1,455 Kg = 1,643.2 x 1.6 " / 40 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 1.3 ft / 0.4 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, rise aft of midbreak, low quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 6.33 : 1
'Natural speed' for length: 13.96 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 14.00 ft / 4.27 m
- Forecastle (20 %): 12.00 ft / 3.66 m (10.20 ft / 3.11 m aft of break)
- Mid (51 %): 10.20 ft / 3.11 m (13.60 ft / 4.15 m aft of break)
- Quarterdeck (32 %): 10.20 ft / 3.11 m (13.60 ft / 4.15 m before break)
- Stern: 10.20 ft / 3.11 m
- Average freeboard: 11.32 ft / 3.45 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 43.4 %
- Above water (accommodation/working, high = better): 105.2 %
Waterplane Area: 4,393 Square feet or 408 Square metres
Displacement factor (Displacement / loading): 297 %
Structure weight / hull surface area: 39 lbs/sq ft or 190 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.88
- Longitudinal: 3.09
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Actual range: 8,000 nm at 12 knots
Actual bunker at max displacement: 279 tons
Actual Fuel, ammunition & stores: 186 tons
Actual Full Load displacement: 1,174 tons
Stores: 284 tons

- 150 tons for handling gear and cranes
- 20 tons for navigation radar
- 6 tons for damage control and fire suppression systems
- 10 tons for emergency diesel generators
- 6 tons for climate control system
- 58 tons for various

Achizuri, Japan Combat support ship laid down 1940, converted in 1943
Ships: 2. Achizuri, Shioya.

Displacement:
4,258 t light; 5,527 t standard; 18,480 t normal; 28,842 t full load

Dimensions: Length overall / water x beam x draught
509.16 ft / 500.00 ft x 66.00 ft x 28.00 ft (normal load)
155.19 m / 152.40 m x 20.12 m x 8.53 m

Armament:
12 - 1.57" / 40.0 mm guns (2x6 guns), 2.00lbs / 0.91kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
Weight of broadside 24 lbs / 11 kg
Shells per gun, main battery: 67,500

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 12,357 shp / 9,218 Kw = 17.00 kts
Range 78,980nm at 15.00 kts
Bunker at max displacement = 23,315 tons

Complement:
792 - 1,030

Cost:
£1.186 million / $4.746 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.0 %
Armour: 2 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 330 tons, 1.8 %
Hull, fittings & equipment: 3,423 tons, 18.5 %
Fuel, ammunition & stores: 14,222 tons, 77.0 %
Miscellaneous weights: 500 tons, 2.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
133,025 lbs / 60,339 Kg = 68,121.8 x 1.6 " / 40 mm shells or 17.4 torpedoes
Stability (Unstable if below 1.00): 2.17
Metacentric height 9.0 ft / 2.7 m
Roll period: 9.3 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.86

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.700
Length to Beam Ratio: 7.58 : 1
'Natural speed' for length: 22.36 kts
Power going to wave formation at top speed: 37 %
Trim (Max stability = 0, Max steadiness = 100): 54
Bow angle (Positive = bow angles forward): 15.00 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 %): 21.90 ft / 6.68 m (13.90 ft / 4.24 m aft of break)
- Mid (50 %): 13.90 ft / 4.24 m
- Quarterdeck (15 %): 13.90 ft / 4.24 m
- Stern: 13.90 ft / 4.24 m
- Average freeboard: 15.59 ft / 4.75 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 16.0 %
- Above water (accommodation/working, high = better): 88.4 %
Waterplane Area: 26,450 Square feet or 2,457 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 86 lbs/sq ft or 421 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.20
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather


Actual range: 10,000 nm at 15 knots
Actual bunker at max displacement: 3,097 tons
Actual shells per gun, main battery: 1,500
Actual Fuel, ammunition & stores: 2,110 tons
Actual Full Load displacement: 19,857 tons
Actual magazine weight: 20 tons

Ammunition cargo: 880 tons
Fuel cargo: 9,732 tons
Stores cargo: 1,500 tons

- 200 tons for handling gear, cranes and pumping equipment
- 30 tons for navigation radar
- 43 tons for damage control and fire suppression systems
- 11 tons for emergency diesel generators
- 43 tons for climate control system
- 100 tons for crew comfort
- 73 tons for various

Nagoya Maru, Japan Aircraft Transport laid down 1938, converted in 1943
Ships: 4. Nagoya Maru, Osaka Maru, Oita Maru, Toyama Maru.

Displacement:
8,519 t light; 8,899 t standard; 18,018 t normal; 25,313 t full load

Dimensions: Length overall / water x beam x draught
507.17 ft / 495.00 ft x 65.00 ft x 28.00 ft (normal load)
154.59 m / 150.88 m x 19.81 m x 8.53 m

Armament:
12 - 1.57" / 40.0 mm guns (2x6 guns), 2.00lbs / 0.91kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
Weight of broadside 24 lbs / 11 kg
Shells per gun, main battery: 1,500

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 1 shaft, 12,183 shp / 9,089 Kw = 17.00 kts
Range 55,250nm at 15.00 kts
Bunker at max displacement = 16,414 tons

Complement:
776 - 1,010

Cost:
£1.958 million / $7.830 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.0 %
Armour: 2 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 334 tons, 1.9 %
Hull, fittings & equipment: 4,680 tons, 26.0 %
Fuel, ammunition & stores: 9,499 tons, 52.7 %
Miscellaneous weights: 3,500 tons, 19.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
77,270 lbs / 35,049 Kg = 39,569.5 x 1.6 " / 40 mm shells or 8.3 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 3.5 ft / 1.1 m
Roll period: 14.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, rise aft of midbreak, low quarterdeck
Block coefficient: 0.700
Length to Beam Ratio: 7.62 : 1
'Natural speed' for length: 22.25 kts
Power going to wave formation at top speed: 38 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 6.00 ft / 1.83 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 35.00 ft / 10.67 m
- Forecastle (31 %): 35.00 ft / 10.67 m (21.00 ft / 6.40 m aft of break)
- Mid (44 %): 21.00 ft / 6.40 m (35.00 ft / 10.67 m aft of break)
- Quarterdeck (6 %): 27.00 ft / 8.23 m (35.00 ft / 10.67 m before break)
- Stern: 27.00 ft / 8.23 m
- Average freeboard: 32.82 ft / 10.00 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 28.9 %
- Above water (accommodation/working, high = better): 202.9 %
Waterplane Area: 25,616 Square feet or 2,380 Square metres
Displacement factor (Displacement / loading): 430 %
Structure weight / hull surface area: 87 lbs/sq ft or 423 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.82
- Longitudinal: 5.44
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
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


Actual range: 10,000 nm at 15 knots
Actual bunker at max displacement: 3,104 tons
Actual Fuel, ammunition & stores: 2,105 tons
Actual Full Load displacement: 19,397 tons

Cargo (high): 2900 tons aircraft and aircraft parts
Cargo (low): 7394 tons aviation fuel, aircraft ammunition, etc
- 200 tons for handling gear, cranes and pumping equipment
- 30 tons for navigation radar
- 86 tons for damage control and fire suppression systems
- 22 tons for emergency diesel generators
- 86 tons for climate control system
- 100 tons for crew comfort
- 76 tons for various

Abida Maru, Japan Fleet Oiler laid down 1940, converted 1943

(I should be altering the pic a bit so the proper name is on it...)
Ships: 7. Abida Maru, Asira Maru, Aruka Maru, Akumaya Maru, Arinda Maru, Akuteon Maru, Atisu Maru.


Displacement:
5,754 t light; 6,298 t standard; 25,876 t normal; 41,538 t full load

Dimensions: Length overall / water x beam x draught
555.19 ft / 540.00 ft x 74.00 ft x 31.00 ft (normal load)
169.22 m / 164.59 m x 22.56 m x 9.45 m

Armament:
12 - 1.57" / 40.0 mm guns (2x6 guns), 2.00lbs / 0.91kg shells, 1940 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
Weight of broadside 24 lbs / 11 kg
Shells per gun, main battery: 2,000

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 10,815 shp / 8,068 Kw = 15.50 kts
Range 167,000nm at 12.00 kts
Bunker at max displacement = 35,240 tons

Complement:
1,019 - 1,326

Cost:
£1.599 million / $6.397 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.0 %
Armour: 2 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 289 tons, 1.1 %
Hull, fittings & equipment: 4,600 tons, 17.8 %
Fuel, ammunition & stores: 20,122 tons, 77.8 %
Miscellaneous weights: 860 tons, 3.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
304,782 lbs / 138,247 Kg = 156,077.7 x 1.6 " / 40 mm shells or 38.3 torpedoes
Stability (Unstable if below 1.00): 2.15
Metacentric height 10.5 ft / 3.2 m
Roll period: 9.6 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.90

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.731
Length to Beam Ratio: 7.30 : 1
'Natural speed' for length: 23.24 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 53
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: 28.00 ft / 8.53 m
- Forecastle (12 %): 21.00 ft / 6.40 m (13.00 ft / 3.96 m aft of break)
- Mid (41 %): 15.53 ft / 4.73 m
- Quarterdeck (25 %): 21.00 ft / 6.40 m (13.00 ft / 3.96 m before break)
- Stern: 21.00 ft / 6.40 m
- Average freeboard: 17.08 ft / 5.21 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 9.4 %
- Above water (accommodation/working, high = better): 87.8 %
Waterplane Area: 32,921 Square feet or 3,059 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 95 lbs/sq ft or 461 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.20
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather


Actual range: 20,000 nm at 12 knots, 13,895 nm at 14 knots.
Actual bunker at max displacement: 4,425 tons
Actual Fuel, ammunition & stores: 3,003 tons
Actual Full Load displacement: 27,843 tons
Capacity: 138,490 barrels (= 17,119 tons)
17119

- 400 tons for handling gear, cranes and pumping equipment
- 20 tons for navigation radar
- 58 tons for damage control and fire suppression systems
- 15 tons for emergency diesel generators
- 58 tons for climate control system
- 150 tons for crew comfort
- 159 tons for various

Mara Maru (1945), Japan cargo ship converted to Guidance Ship laid down 1939, converted 1945
Ships: 2. Mara Maru, Maro Maru.

Displacement:
4,162 t light; 4,475 t standard; 11,277 t normal; 16,717 t full load

Dimensions: Length overall / water x beam x draught
471.37 ft / 460.00 ft x 60.00 ft x 26.00 ft (normal load)
143.67 m / 140.21 m x 18.29 m x 7.92 m

Armament:
4 - 2.95" / 75.0 mm guns (2x2 guns), 12.00lbs / 5.44kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
12 - 1.57" / 40.0 mm guns (2x6 guns), 2.00lbs / 0.91kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
16 - 0.98" / 25.0 mm guns (4x4 guns), 0.57lbs / 0.26kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 81 lbs / 37 kg
Shells per gun, main battery: 1,500

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 7,289 shp / 5,438 Kw = 16.00 kts
Range 141,390nm at 10.00 kts
Bunker at max displacement = 12,242 tons

Complement:
546 - 711

Cost:
£1.065 million / $4.260 million

Distribution of weights at normal displacement:
Armament: 12 tons, 0.1%
Armour: 8 tons, 0.1%
- Belts: 0 tons, 0.0%
- Torpedo bulkhead: 0 tons, 0.0%
- Armament: 8 tons, 0.1%
- Armour Deck: 0 tons, 0.0%
- Conning Tower: 0 tons, 0.0%
Machinery: 197 tons, 1.7%
Hull, fittings & equipment: 2,445 tons, 21.7%
Fuel, ammunition & stores: 7,115 tons, 63.1%
Miscellaneous weights: 1,500 tons, 13.3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
50,135 lbs / 22,741 Kg = 3,894.9 x 3.0 " / 75 mm shells or 8.9 torpedoes
Stability (Unstable if below 1.00): 1.49
Metacentric height 4.6 ft / 1.4 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.83

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 7.67 : 1
'Natural speed' for length: 21.45 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 20.00 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%): 15.00 ft / 4.57 m
- Mid (50%): 15.00 ft / 4.57 m
- Quarterdeck (15%): 15.00 ft / 4.57 m
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 15.64 ft / 4.77 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 23.4%
- Above water (accommodation/working, high = better): 97.8%
Waterplane Area: 18,681 Square feet or 1,736 Square metres
Displacement factor (Displacement / loading): 565%
Structure weight / hull surface area: 80 lbs/sq ft or 390 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.51
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Conversion cost: 25% = 1041 tons and 3.5 months.
Ships converted: Mara Maru and Maro Maru.

Shells per gun, 75mm: 1,500.
Shells per gun, 40mm: 2,500.
Shells per gun, 25mm: 3,000.
Actual range: 36,000 nm at 10 knots.
Actual bunker at max displacement: 3,193 tons.
Actual Fuel, ammunition & stores: 2,087 tons.
Actual Full Load displacement: 12,696 tons.
Max draft: 29.27 feet.

Cargo: 5028 tons (simmed as bunker).

- 600 tons for radar and communication systems.
- 400 tons for handling gear, cranes and pumping equipment.
- 42 tons for damage control and fire suppression systems.
- 11 tons for emergency diesel generators.
- 42 tons for climate control system.
- 95 tons for degaussing coils.
- 40 tons for sushi restaurant
- 30 tons for pachinko parlor
- 30 tons for karaoke facilities + Kobe Cola vending machines
- 210 tons for crew comfort.

Total 1500 miscellaneous weights.

Umi, Japan Deep-submergence vehicle laid down 1945
Vehicles: 2. Umi I (1945), Umi II (1948).

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

Bunker breakdown:
60 tons for gasoline
13 tons for ballast water
1 ton for fuel
Total 74 tons

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.

CAV Akitsushima Coast Assault Vessel, Japan Landing Ship Dock laid down 1947

Displacement:
20,585 t light; 21,448 t standard; 35,802 t normal; 47,285 t full load

Dimensions: Length overall / water x beam x draught
722.78 ft / 700.00 ft x 108.00 ft x 25.50 ft (normal load)
220.30 m / 213.36 m x 32.92 m x 7.77 m

Armament:
8 - 2.95" / 75.0 mm guns (4x2 guns), 12.00lbs / 5.44kg shells, 1947 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, all raised mounts
Aft Main mounts separated by engine room
24 - 1.57" / 40.0 mm guns (4x6 guns), 2.00lbs / 0.91kg shells, 1947 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.98" / 25.0 mm guns (4x4 guns), 0.57lbs / 0.26kg shells, 1947 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 153 lbs / 69 kg
Shells per gun, main battery: 1,380

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 20,524 shp / 15,311 Kw = 18.00 kts
Range 65,000nm at 15.00 kts
Bunker at max displacement = 25,836 tons

Complement:
1,300 - 1,691

Cost:
£5.892 million / $23.568 million

Distribution of weights at normal displacement:
Armament: 22 tons, 0.1 %
Armour: 16 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 16 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 507 tons, 1.4 %
Hull, fittings & equipment: 9,739 tons, 27.2 %
Fuel, ammunition & stores: 15,218 tons, 42.5 %
Miscellaneous weights: 10,300 tons, 28.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
123,232 lbs / 55,897 Kg = 9,573.5 x 3.0 " / 75 mm shells or 10.0 torpedoes
Stability (Unstable if below 1.00): 1.26
Metacentric height 8.5 ft / 2.6 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.82

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.650
Length to Beam Ratio: 6.48 : 1
'Natural speed' for length: 30.79 kts
Power going to wave formation at top speed: 31 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 36.00 ft / 10.97 m
- Forecastle (20 %): 28.00 ft / 8.53 m
- Mid (50 %): 28.00 ft / 8.53 m
- Quarterdeck (40 %): 17.00 ft / 5.18 m (28.00 ft / 8.53 m before break)
- Stern: 17.00 ft / 5.18 m
- Average freeboard: 24.24 ft / 7.39 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 38.1 %
- Above water (accommodation/working, high = better): 247.9 %
Waterplane Area: 60,421 Square feet or 5,613 Square metres
Displacement factor (Displacement / loading): 311 %
Structure weight / hull surface area: 125 lbs/sq ft or 613 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.17
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
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



Actual shells per gun (total magazine weight 148 tons)
75mm = 1500 = 80 tons
40mm = 2000 = 53 tons
25mm = 3000 = 15 tons

Actual range with empty well deck and ballast tanks = 10000nm@15
Actual speed with empty well deck and ballast tanks = 18.85 knots
Actual max bunker for ship's fuel = 3,761 tons
Actual normal draught with empty well deck and ballast tanks = 17.59 feet
Actual max draught with empty well deck and ballast tanks = 19.43 feet
Max draught with fully flooded well deck and filled ballast tanks = 33.68 feet
Normal displacement with empty well deck and ballast tanks: 25,613 tons
Normal displacement with fully flooded well deck and ballast tanks: 44,691 tons
Height of the well deck bottom above waterline with empty well deck and ballast tanks (at normal displacement): 6.25 feet
Height of the well deck bottom above waterline with empty well deck and ballast tanks (at full load displacement): 4.41 feet
Depth of well deck with fully flooded well deck and ballast tanks (at standard displacement): 5.68 feet
Depth of well deck with fully flooded well deck and ballast tanks (at normal displacement): 7.99 feet

- 10200 tons for water in 170x20x3m well deck (simmed as part of bunker) 557.74x65.62x9.84ft
- 9800 tons for water in the ballast tanks (simmed as part of bunker)
- 90 tons for 10x6x1.5m swimming pool (simmed as part of bunker)
- 1200 tons for extra fresh water (simmed as part of bunker)
- 785 tons for extra gasoline (simmed as part of bunker)

10300t
- 50 tons for two catapults (forecastle).
- 20 tons for 2 cranes.
- 300 tons for 12 float planes (usually Aichi E16A or Aichi M6A).
- 300 tons for flying boat platform over quarterdeck.
- 20 tons fo 1 large crane.
- 100 tons for 2 Kawanishi H8K flying boats (usually H8K2-L).
- 48 tons for aircraft spare parts.
- 50 tons for aircraft repair shop.
- 200 tons for vehicle/small boat repair shop + crane.
- 150 tons for vehicle, tank, and landing craft spares.
- 2400 tons for 1200 Troops.
- 1857 for dock load (as built (*) )
--- 1584 tons for 8x Heavy Landing Craft (dock).
--- 133 tons for 14x Daihatsu (dock).
--- 140 tons for 8x Toku-Daihatsu (dock).
- 100 tons for Shohatsu launch deck + cranes (on quarterdeck, underneath flying boat platform, above aft part of the well deck).
- 75 tons for 20x Shohatsu landing craft.
- 600 tons for 15 tanks @40 tons.
- 400 tons for 40 vehicles @10 tons.
- 60 tons for two sets of high-capacity pumps (to flood or drain well deck).
- 100 tons for radar, sonar and electronics.
- 210 tons for damage control and fire suppression systems.
- 55 tons for emergency diesel generators.
- 210 tons for air condition system.
- 145 tons for degaussing coils.
- 1000 tons for combat-loaded supplies.
- 40 tons for 75mm loading, training and elevation systems.
- 8 tons for 40mm loading, training and elevation systems.
- 6 tons for 25mm loading, training and elevation systems.
- 100 tons for command center.
- 75 tons for operations center.
- 75 tons for briefing room.
- 100 tons for fire control and fire control center.
- 525 tons for 150 medical personnel (3.5 tons per person).
- 350 tons for 100 patient beds (3.5 t per patient).
- 200 t for 2 operating rooms and triage center.
- 20 t for water purification system.
- 15 tons for yatai mobile food stall.
- 30 tons for pachinko parlor.
- 15 tons for karaoke facilities + Kobe Cola vending machines.
- 40 tons for officer's lounge.
- 10 tons for deep freeze unit.
- 50 tons for Onsen and Sauna.
- 30 tons for Shinto Shrine.
- 161 tons for various.

(*) Ship will be able to take on additional float planes in the dock instead of the landing crafts. It could also take on other smaller vessels (other types of landing craft, MTBs and small/midget submarines) in its dock but these are not included (i.e. they would have to have been built separately from this ship)

Heavy Landing Craft, Japan Landing Craft laid down 1947

Displacement:
198 t light; 204 t standard; 211 t normal; 216 t full load

Dimensions: Length overall / water x beam x draught
83.18 ft / 80.00 ft x 23.75 ft x 4.85 ft (normal load)
25.35 m / 24.38 m x 7.24 m x 1.48 m

Armament:
2 - 0.98" / 25.0 mm guns (1x2 guns), 0.48lbs / 0.22kg shells, 1947 Model
Anti-aircraft guns in deck mount
on centreline forward, all raised guns - superfiring
4 - 0.52" / 13.2 mm guns (2x2 guns), 0.07lbs / 0.03kg shells, 1947 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1947 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1 lbs / 1 kg
Shells per gun, main battery: 2,000

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 74 shp / 55 Kw = 8.00 kts
Range 2,000nm at 8.00 kts
Bunker at max displacement = 12 tons

Complement:
26 - 35

Cost:
£0.053 million / $0.213 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Machinery: 2 tons, 0.9 %
Hull, fittings & equipment: 46 tons, 21.7 %
Fuel, ammunition & stores: 13 tons, 6.1 %
Miscellaneous weights: 150 tons, 71.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
261 lbs / 118 Kg = 547.4 x 1.0 " / 25 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.800
Length to Beam Ratio: 3.37 : 1
'Natural speed' for length: 10.93 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 42
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 5.50 ft / 1.68 m
- Forecastle (20 %): 4.20 ft / 1.28 m
- Mid (50 %): 4.20 ft / 1.28 m
- Quarterdeck (15 %): 4.20 ft / 1.28 m
- Stern: 4.20 ft / 1.28 m
- Average freeboard: 4.30 ft / 1.31 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.3 %
- Above water (accommodation/working, high = better): 53.4 %
Waterplane Area: 1,737 Square feet or 161 Square metres
Displacement factor (Displacement / loading): 136 %
Structure weight / hull surface area: 22 lbs/sq ft or 109 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.41
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Good seaboat, rides out heavy weather easily