WesWorld

Light Aircraft Carriers of the Japanese Navy.


Light Carriers in service.


- The Flight Deck Casino

- Chitose Class: Chitose, Chiyoda.

- Kumano Class: Kumano, Otakisan, Shimane.

- Taiyo Class: Taiyo, Unyo, Chuyo, Kaiyo, Ryujo.

SS 2.01 Data:

Hosho, Japan Koukuubokan laid down 1919

Displacement:
7,457 t light; 7,678 t standard; 9,507 t normal; 10,933 t full load

Dimensions: Length overall / water x beam x draught
591.47 ft / 590.00 ft x 60.00 ft x 20.00 ft (normal load)
180.28 m / 179.83 m x 18.29 m x 6.10 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 65.00lbs / 29.48kg shells, 1918 Model
Breech loading guns in deck mounts with hoists
on side, all amidships
6 - 1.97" / 50.0 mm guns (3x2 guns), 4.00lbs / 1.81kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
9 - 1.97" / 50.0 mm guns in single mounts, 4.00lbs / 1.81kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
24 - 0.98" / 25.0 mm guns (8x3 guns), 0.57lbs / 0.26kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 334 lbs / 151 kg
Shells per gun, main battery: 150

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 71,326 shp / 53,209 Kw = 31.00 kts
Range 13,000nm at 15.00 kts (Bunkerage = 3,292 tons)

Complement:
480 - 625

Cost:
£1.420 million / $5.681 million

Distribution of weights at normal displacement:
Armament: 42 tons, 0.4 %
Armour: 19 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,533 tons, 26.6 %
Hull, fittings & equipment: 3,063 tons, 32.2 %
Fuel, ammunition & stores: 2,051 tons, 21.6 %
Miscellaneous weights: 1,800 tons, 18.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,736 lbs / 3,963 Kg = 130.3 x 5.1 " / 130 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 3.4 ft / 1.0 m
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.470
Length to Beam Ratio: 9.83 : 1
'Natural speed' for length: 24.29 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 3.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (20 %): 15.50 ft / 4.72 m
- Mid (50 %): 15.50 ft / 4.72 m
- Quarterdeck (15 %): 15.50 ft / 4.72 m
- Stern: 15.50 ft / 4.72 m
- Average freeboard: 16.50 ft / 5.03 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 110.6 %
- Above water (accommodation/working, high = better): 135.0 %
Waterplane Area: 21,956 Square feet or 2,040 Square metres
Displacement factor (Displacement / loading): 132 %
Structure weight / hull surface area: 88 lbs/sq ft or 429 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.03
- Longitudinal: 1.04
- Overall: 1.03
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

(moved here from "Miscellaneous")

"The Flight Deck", Japan Floating Cassino/Training Carrier laid down 1931

Displacement:
12,850 t light; 13,164 t standard; 15,682 t normal; 17,696 t full load

Dimensions: Length overall / water x beam x draught
682.90 ft / 660.00 ft x 77.00 ft x 18.00 ft (normal load)
208.15 m / 201.17 m x 23.47 m x 5.49 m

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured
Upper: 4.00" / 102 mm 40.00 ft / 12.19 m 8.00 ft / 2.44 m

- Armour deck: 1.00" / 25 mm, Conning tower: 6.00" / 152 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 2 shafts, 18,050 shp / 13,466 Kw = 20.00 kts
Range 10,000nm at 18.00 kts
Bunker at max displacement = 4,532 tons (10% coal)

Complement:
699 - 910

Cost:
£2.295 million / $9.181 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Armour: 935 tons, 6.0 %
- Belts: 137 tons, 0.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 717 tons, 4.6 %
- Conning Tower: 81 tons, 0.5 %
Machinery: 545 tons, 3.5 %
Hull, fittings & equipment: 5,020 tons, 32.0 %
Fuel, ammunition & stores: 2,831 tons, 18.1 %
Miscellaneous weights: 6,350 tons, 40.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
37,659 lbs / 17,082 Kg = 348.7 x 6 " / 152 mm shells or 4.2 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 4.2 ft / 1.3 m
Roll period: 15.8 seconds
Steadiness - As gambling platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.70

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.600
Length to Beam Ratio: 8.57 : 1
'Natural speed' for length: 29.36 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20 %): 22.00 ft / 6.71 m
- Mid (50 %): 22.00 ft / 6.71 m
- Quarterdeck (15 %): 22.00 ft / 6.71 m
- Stern: 22.00 ft / 6.71 m
- Average freeboard: 22.72 ft / 6.93 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 56.3 %
- Above water (accommodation/working, high = better): 232.2 %
Waterplane Area: 38,738 Square feet or 3,599 Square metres
Displacement factor (Displacement / loading): 187 %
Structure weight / hull surface area: 94 lbs/sq ft or 460 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.04
- 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 gambling platform
Excellent seaboat, comfortable, rides out heavy weather easily

Actual displacement given as 13,000 tons.
Taking passenger safety into consideration, an armored deck is situated below the flightdeck to protect Casino/Hotel below from crashing planes.
Upper belt armor used to sim protection around a special room (see below).
Conning Tower armor functions as an Armored Observation Tower
Armor data: Officially the ship has no armor.


160 tons per Honeymoon Room (2): 320 tons
16 ton per hotel passenger (elite class): 1280 tons = 80 guests
10 ton per hotel passenger (business class): 2000 tons = 200 guests
2700 tons for special facilities
50 tons for 2 planes + facilities
Total: 6350 tons

Elite Class Accomodation
One-berth: 12 cabins (12)
Two-berth: 10 cabins (20)
Three-berth: 16 cabins (48)

Business Class Accomodation
Two-berth: 24 cabins (48)
Three-berth: 8 cabins (24)
Four-berth: 32 cabins (128)


Elite class breakdown 1,600 tons
cabins+luggage: 480 tons
Dining Room: 120 tons
Kitchen: 80 tons
Food+storage: 80 tons
Library: 160 tons
Smoking room: 160 tons
Swimming Pool, Gymnasium, Tennis Court, etc: 240 tons
Movie theatre: 80 tons
Miscellaneous: 200 tons

Business class breakdown 2,000 tons
cabins+luggage: 600 tons
Dining Room: 200 tons
Kitchen: 100 tons
Food+storage: 100 tons
Library: 200 tons
Smoking room: 200 tons
Movie theatre: 100 tons
Miscellaneous: 500 tons

Facilities breakdown: 2,700 tons
Casino: 800 tons
Secret Booze Room: 100 tons (for use in US waters)
Observation Facilities: 300
-- Stern observation rooms: 100 tons
-- Stem observation rooms: 50 tons
-- Hangar observation room: 25 tons
-- Tower observation room: 50 tons
-- Casino observation rooms: 75 tons
Fight Arena: 500 tons
Security facilities: 600 tons
-- Security room: 100 tons
-- Security personel rooms: 200 tons (100 men)
-- Special security passages, doors, etc.: 300 tons
Big Bright lights: 100 tons
Villain facilities: 200 tons
-- Concrete Shoe room: 25 tons
-- Soundproof room: 25 tons
-- Punchbag room: 25 tons
-- Piano room: 25 tons
-- Fishing room: 25 tons
-- Trapdoors: 25 tons
-- Body disposal room: 50 tons
-- Fish room: 100 tons

Flashing sign on the ship's sides:
TEST YOUR LUCK AT
====>>>> THE FLIGHTDECK CASINO <<<<====

==> Special Villain facilities!! <==
Need to take out an opponent? Look no further! Ask the ship's personel wearing red coats for further information.

Concrete Shoe room:
Excellent way to dispose of your enemy. Clean and efficiently and without any evidence. Concrete not included in the price.

Soundproof room:
Though not actually sound proof, the noise of the nearby engine room drowns any noises in this well-armored room. Perfect for shooting your enemy without drawing any attention from other passengers.

Punchbag room:
Special room for beating up your enemy, whether it is to teach him a lesson or extract information. Immobilize your victim and start your work-out. Remember: Exercise is important for one's condition!

Piano room:
Lots of pianos, lots of piano snares and lots of opportunities to strangle your enemy!

Fishing room:
Located between the hull stern observation rooms. Tie up your enemy and throw him out of the door. Especially interesting in shark-infested waters. Lots of betting opportunities here!

Trapdoors:
This ship does not stop for passengers falling overboard (which is not possible anyway). Trapdoors all over the ship will allow you to remove unwanted persons from the ship. Just make sure you're in the right position and your enemy isn't.

Body disposal room:
Got a body you can't get rid of? Give it to the ship's special crew and we will make sure that the evidence goes up in smoke together with the coal.

Fish room:
Some beautiful, yet nasty creatures in the fish tank in this room, eager to take a bite out of an unfortunate enemy dropped in the tank. Dinner will be served shortly!

(moved here from "Aircraft Carriers")


Chitose, Japan Light Carrier laid down 1931
Ships: 2. Chitose and Chiyoda.

Displacement:
12,748 t light; 13,184 t standard; 15,120 t normal; 16,668 t full load

Dimensions: Length overall / water x beam x draught
669.74 ft / 650.00 ft x 65.00 ft x 24.00 ft (normal load)
204.14 m / 198.12 m x 19.81 m x 7.32 m

Armament:
8 - 4.13" / 105 mm guns (4x2 guns), 34.00lbs / 15.42kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 2 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
16 - 1.57" / 40.0 mm guns (2x8 guns), 2.00lbs / 0.91kg shells, 1923 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
12 - 0.98" / 25.0 mm guns (4x3 guns), 0.57lbs / 0.26kg shells, 1926 Model
Breech loading guns in deck mounts
on side, evenly spread
16 - 0.52" / 13.2 mm guns (4x4 guns), 0.09lbs / 0.04kg shells, 1930 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 504 lbs / 229 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.54" / 90 mm 460.00 ft / 140.21 m 9.50 ft / 2.90 m
Ends: Unarmoured
Main Belt covers 109 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -
5th: 0.50" / 13 mm - -

- Armour deck: 1.77" / 45 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 139,425 shp / 104,011 Kw = 35.50 kts
Range 12,500nm at 15.00 kts
Bunker at max displacement = 3,484 tons

Complement:
681 - 886

Cost:
£4.735 million / $18.942 million

Distribution of weights at normal displacement:
Armament: 66 tons, 0.4 %
Armour: 1,733 tons, 11.5 %
- Belts: 637 tons, 4.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 80 tons, 0.5 %
- Armour Deck: 979 tons, 6.5 %
- Conning Tower: 36 tons, 0.2 %
Machinery: 4,169 tons, 27.6 %
Hull, fittings & equipment: 4,780 tons, 31.6 %
Fuel, ammunition & stores: 2,371 tons, 15.7 %
Miscellaneous weights: 2,000 tons, 13.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,368 lbs / 6,971 Kg = 435.1 x 4.1 " / 105 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 3.5 ft / 1.1 m
Roll period: 14.6 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.09
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.522
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 29.02 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (20 %): 27.00 ft / 8.23 m
- Mid (40 %): 27.00 ft / 8.23 m (19.00 ft / 5.79 m aft of break)
- Quarterdeck (15 %): 19.00 ft / 5.79 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 22.36 ft / 6.82 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 108.1 %
- Above water (accommodation/working, high = better): 179.4 %
Waterplane Area: 29,884 Square feet or 2,776 Square metres
Displacement factor (Displacement / loading): 120 %
Structure weight / hull surface area: 99 lbs/sq ft or 482 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.39
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Planes: 1600 tons (= 40 planes)
Extras: 400 tons

Kumano, Japan amphibious warfare ship laid down 1937
Ships: 3. Kumano, Otakisan, Shimane.

Displacement:
7,949 t light; 8,153 t standard; 9,132 t normal; 9,916 t full load

Dimensions: Length overall / water x beam x draught
484.74 ft / 470.00 ft x 65.00 ft x 19.00 ft (normal load)
147.75 m / 143.26 m x 19.81 m x 5.79 m

Armament:
8 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
6 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 106 lbs / 48 kg
Shells per gun, main battery: 350

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 12,060 shp / 8,996 Kw = 19.00 kts
Range 8,500nm at 15.00 kts
Bunker at max displacement = 1,763 tons

Complement:
466 - 607

Cost:
£1.833 million / $7.334 million

Distribution of weights at normal displacement:
Armament: 13 tons, 0.1%
Machinery: 334 tons, 3.7%
Hull, fittings & equipment: 2,601 tons, 28.5%
Fuel, ammunition & stores: 1,183 tons, 13.0%
Miscellaneous weights: 5,000 tons, 54.8%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,791 lbs / 6,709 Kg = 1,149.1 x 3.0 " / 75 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.9 ft / 0.9 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.551
Length to Beam Ratio: 7.23 : 1
'Natural speed' for length: 21.68 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 6.00 ft / 1.83 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20%): 19.80 ft / 6.04 m
- Mid (60%): 19.80 ft / 6.04 m
- Quarterdeck (10%): 19.80 ft / 6.04 m
- Stern: 19.80 ft / 6.04 m
- Average freeboard: 20.14 ft / 6.14 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73.3%
- Above water (accommodation/working, high = better): 172.7%
Waterplane Area: 21,334 Square feet or 1,982 Square metres
Displacement factor (Displacement / loading): 158%
Structure weight / hull surface area: 81 lbs/sq ft or 394 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.68
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather


350 tons ------ 25 landing crafts
200 tons ------ Doors and landing craft launch system, cranes
2420 tons ----- 1210 soldiers
469 tons ------ Cargo
1369 tons ----- 37 planes
192 tons ------ 12 Type 90 tanks
5000 tons total

Taiyo (improved Chitose class), Japan Light Carrier laid down 1939
Ships: 5. Taiyo, Unyo, Chuyo, Kaiyo, Ryujo.

Displacement:
12,521 t light; 12,956 t standard; 15,098 t normal; 16,812 t full load

Dimensions: Length overall / water x beam x draught
669.74 ft / 650.00 ft x 65.00 ft x 24.00 ft (normal load)
204.14 m / 198.12 m x 19.81 m x 7.32 m

Armament:
8 - 4.13" / 105 mm guns (4x2 guns), 34.00lbs / 15.42kg shells, 1939 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 2 raised mounts - superfiring
16 - 2.95" / 75.0 mm guns (8x2 guns), 12.00lbs / 5.44kg shells, 1939 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
16 - 1.57" / 40.0 mm guns (2x8 guns), 2.00lbs / 0.91kg shells, 1939 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
12 - 0.98" / 25.0 mm guns (4x3 guns), 0.57lbs / 0.26kg shells, 1939 Model
Breech loading guns in deck mounts
on side, evenly spread
16 - 0.52" / 13.2 mm guns (4x4 guns), 0.09lbs / 0.04kg shells, 1939 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 504 lbs / 229 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 422.50 ft / 128.78 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 100% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -
5th: 0.50" / 13 mm - -

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 117,301 shp / 87,506 Kw = 34.00 kts
Range 15,000nm at 15.00 kts
Bunker at max displacement = 3,856 tons

Complement:
680 - 885

Cost:
£5.457 million / $21.826 million

Distribution of weights at normal displacement:
Armament: 66 tons, 0.4%
Armour: 1,929 tons, 12.8%
- Belts: 704 tons, 4.7%
- Torpedo bulkhead: 0 tons, 0.0%
- Armament: 80 tons, 0.5%
- Armour Deck: 1,105 tons, 7.3%
- Conning Tower: 39 tons, 0.3%
Machinery: 3,174 tons, 21.0%
Hull, fittings & equipment: 4,678 tons, 31.0%
Fuel, ammunition & stores: 2,577 tons, 17.1%
Miscellaneous weights: 2,675 tons, 17.7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,710 lbs / 8,487 Kg = 529.7 x 4.1 " / 105 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 3.1 ft / 1.0 m
Roll period: 15.5 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 0.09
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.521
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 29.03 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (20%): 26.50 ft / 8.08 m
- Mid (40%): 26.50 ft / 8.08 m (18.50 ft / 5.64 m aft of break)
- Quarterdeck (15%): 18.50 ft / 5.64 m
- Stern: 18.50 ft / 5.64 m
- Average freeboard: 21.90 ft / 6.68 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.0%
- Above water (accommodation/working, high = better): 175.3%
Waterplane Area: 29,863 Square feet or 2,774 Square metres
Displacement factor (Displacement / loading): 132%
Structure weight / hull surface area: 98 lbs/sq ft or 477 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.31
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Planes: 2025 tons (= 45 planes)
Extras: 650 tons

Akitsu, Japan amphibious warfare ship laid down 1943
Ships: 2. Akitsu, Nigitsu.

Displacement:
7,938 t light; 8,143 t standard; 9,237 t normal; 10,113 t full load

Dimensions: Length overall / water x beam x draught
484.74 ft / 470.00 ft x 65.00 ft x 19.00 ft (normal load)
147.75 m / 143.26 m x 19.81 m x 5.79 m

Armament:
8 - 2.95" / 75.0 mm guns in single mounts, 12.00lbs / 5.44kg shells, 1943 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
6 - 0.98" / 25.0 mm guns in single mounts, 0.57lbs / 0.26kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, all aft
Weight of broadside 99 lbs / 45 kg
Shells per gun, main battery: 350

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 12,168 shp / 9,078 Kw = 19.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 1,971 tons

Complement:
470 - 612

Cost:
£2.179 million / $8.717 million

Distribution of weights at normal displacement:
Armament: 13 tons, 0.1%
Machinery: 314 tons, 3.4%
Hull, fittings & equipment: 2,610 tons, 28.3%
Fuel, ammunition & stores: 1,300 tons, 14.1%
Miscellaneous weights: 5,000 tons, 54.1%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,254 lbs / 6,919 Kg = 1,185.0 x 3.0 " / 75 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 2.9 ft / 0.9 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.557
Length to Beam Ratio: 7.23 : 1
'Natural speed' for length: 21.68 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 6.00 ft / 1.83 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20%): 19.80 ft / 6.04 m
- Mid (60%): 19.80 ft / 6.04 m
- Quarterdeck (10%): 19.80 ft / 6.04 m
- Stern: 19.80 ft / 6.04 m
- Average freeboard: 20.14 ft / 6.14 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 71.8%
- Above water (accommodation/working, high = better): 172.2%
Waterplane Area: 21,461 Square feet or 1,994 Square metres
Displacement factor (Displacement / loading): 161%
Structure weight / hull surface area: 81 lbs/sq ft or 393 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.66
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather


350 tons ------ 25 landing crafts
200 tons ------ Doors and landing craft launch system, cranes
2420 tons ----- 1210 soldiers
469 tons ------ Cargo
1369 tons ----- 37 planes
192 tons ------ tanks
5000 tons total