Heavy Auxiliaries

Desertfox · April 02, 2020, 01:21:27 PM

Heavy Auxiliaries

Fleet Support
10 x Kobayashi Maru class (1896)

Amphibious Assault
3 x Aikoku Maru class (1910)

Tender
5 x Jingei I class (MTB) (1913)
1 x Jingei I class (Zeppelin) (1913), REFITTED
2 x Jingei II class (Sub) (1913)
4 x Seta Maru class (Destroyer) (1917)

Fast transport/Dispatch
4 x Matsu Maru class (1917)

Dispatch Boat
4 x Miyako Maru class (1920)

Seaplane Tender
2 x Mizuho Maru (1921)

Desertfox · April 09, 2020, 02:47:19 PM

10 Built

Kobayashi Maru class, Japan Fleet Support/Collier laid down 1896

Displacement:
8,004 t light; 8,203 t standard; 9,710 t normal; 10,915 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(400.00 ft / 400.00 ft) x 59.00 ft x (24.00 / 26.50 ft)
(121.92 m / 121.92 m) x 17.98 m x (7.32 / 8.08 m)

Armament:
2 - 3.00" / 76.2 mm 45.0 cal guns - 13.62lbs / 6.18kg shells, 300 per gun
Breech loading guns in deck mounts, 1896 Model
2 x Single mounts on centreline ends, evenly spread
Weight of broadside 27 lbs / 12 kg

Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 1 shaft, 4,270 ihp / 3,186 Kw = 14.00 kts
Range 10,700nm at 10.00 kts
Bunker at max displacement = 2,712 tons (100% coal)

Complement:
488 - 635

Cost:
£0.391 million / $1.565 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.0 %
- Guns: 5 tons, 0.0 %
Machinery: 784 tons, 8.1 %
Hull, fittings & equipment: 1,946 tons, 20.0 %
Fuel, ammunition & stores: 1,706 tons, 17.6 %
Miscellaneous weights: 5,270 tons, 54.3 %
- Hull below water: 5,000 tons
- On freeboard deck: 270 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,107 lbs / 5,945 Kg = 970.9 x 3.0 " / 76 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 2.09
Metacentric height 7.2 ft / 2.2 m
Roll period: 9.2 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.60

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.600 / 0.611
Length to Beam Ratio: 6.78 : 1
'Natural speed' for length: 20.00 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 30.00 %, 11.00 ft / 3.35 m, 11.00 ft / 3.35 m
- Forward deck: 30.00 %, 11.00 ft / 3.35 m, 11.00 ft / 3.35 m
- Aft deck: 25.00 %, 11.00 ft / 3.35 m, 11.00 ft / 3.35 m
- Quarter deck: 15.00 %, 11.00 ft / 3.35 m, 11.00 ft / 3.35 m
- Average freeboard: 11.00 ft / 3.35 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.8 %
- Above water (accommodation/working, high = better): 72.5 %
Waterplane Area: 16,884 Square feet or 1,569 Square metres
Displacement factor (Displacement / loading): 142 %
Structure weight / hull surface area: 78 lbs/sq ft or 380 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.25
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

5,000t - 50,00t of fleet support

***

Comprehensive refurbishment of the Kobayashi Marus. They are close to hitting 25 years old but as auxiliaries don't need new replacements.

Main changes are brand new engines pushing speed up to 17kts, cruising speed to 14kts, and range to a massive 17,000nm (primarily to refuel fleet ships). Defensive armament has also been seriously updated, as well as the misc weight stuff, including adding four 40t boats, improved accommodations, and a sensor suite.

Cost per ship is $1.1 and 0.27 BP

Kobayashi Maru class, Japan Fleet Support/Tanker laid down 1896 (Engine 1920)

Displacement:
7,990 t light; 8,197 t standard; 9,710 t normal; 10,920 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(400.00 ft / 400.00 ft) x 59.00 ft x (24.00 / 26.51 ft)
(121.92 m / 121.92 m) x 17.98 m x (7.32 / 8.08 m)

Armament:
2 - 5.00" / 127 mm 54.0 cal guns - 67.24lbs / 30.50kg shells, 170 per gun
Quick firing guns in deck mounts, 1920 Model
2 x Single mounts on centreline ends, evenly spread
8 - 1.00" / 25.4 mm 45.0 cal guns - 0.50lbs / 0.23kg shells, 250 per gun
Machine guns in deck mounts, 1920 Model
4 x Twin mounts on sides, evenly spread
Weight of broadside 139 lbs / 63 kg

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

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 1 shaft, 8,642 shp / 6,447 Kw = 17.00 kts
Range 12,700nm at 14.00 kts
Bunker at max displacement = 2,723 tons

Complement:
488 - 635

Cost:
£0.330 million / $1.320 million

Distribution of weights at normal displacement:
Armament: 29 tons, 0.3 %
- Guns: 29 tons, 0.3 %
Armour: 9 tons, 0.1 %
- Armament: 9 tons, 0.1 %
Machinery: 302 tons, 3.1 %
Hull, fittings & equipment: 1,940 tons, 20.0 %
Fuel, ammunition & stores: 1,720 tons, 17.7 %
Miscellaneous weights: 5,710 tons, 58.8 %
- Hull below water: 5,080 tons
- Hull above water: 320 tons
- On freeboard deck: 280 tons
- Above deck: 30 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,112 lbs / 6,401 Kg = 225.8 x 5.0 " / 127 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.83
Metacentric height 6.0 ft / 1.8 m
Roll period: 10.1 seconds
Steadiness - As gun platform (Average = 50 %): 98 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.55

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.600 / 0.611
Length to Beam Ratio: 6.78 : 1
'Natural speed' for length: 20.00 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 30.00 %, 11.00 ft / 3.35 m, 11.00 ft / 3.35 m
- Forward deck: 30.00 %, 11.00 ft / 3.35 m, 11.00 ft / 3.35 m
- Aft deck: 25.00 %, 11.00 ft / 3.35 m, 11.00 ft / 3.35 m
- Quarter deck: 15.00 %, 11.00 ft / 3.35 m, 11.00 ft / 3.35 m
- Average freeboard: 11.00 ft / 3.35 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 72.0 %
- Above water (accommodation/working, high = better): 72.5 %
Waterplane Area: 16,884 Square feet or 1,569 Square metres
Displacement factor (Displacement / loading): 152 %
Structure weight / hull surface area: 78 lbs/sq ft or 381 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.26
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

5000t - 50,000t of fleet support
80t - Electric Drive
320t - 40t Extra Boats
100t - Hospital Accommodations
100t - Flag/Passenger Accommodations
80t - Radar/Sonar
30t - LR Wireless/FC

Desertfox · April 09, 2020, 02:55:50 PM

Uji class, RECLASSIFIED

Desertfox · April 09, 2020, 03:08:37 PM

4 built

Aikoku Maru, Japan AMC/Troop Transport laid down 1910

Displacement:
4,016 t light; 4,134 t standard; 5,141 t normal; 5,946 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(340.00 ft / 340.00 ft) x 49.00 ft x (20.00 / 22.45 ft)
(103.63 m / 103.63 m) x 14.94 m x (6.10 / 6.84 m)

Armament:
2 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 150 per gun
Breech loading guns in deck and hoist mounts, 1910 Model
2 x Single mounts on centreline ends, evenly spread
4 - 3.00" / 76.2 mm 45.0 cal guns - 13.62lbs / 6.18kg shells, 150 per gun
Breech loading guns in deck mounts, 1910 Model
4 x Single mounts on sides, evenly spread
Weight of broadside 181 lbs / 82 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured
Upper: 0.50" / 13 mm 200.00 ft / 60.96 m 10.00 ft / 3.05 m

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

- Conning towers: Forward 1.00" / 25 mm, Aft 0.00" / 0 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 13,705 shp / 10,224 Kw = 21.00 kts
Range 11,000nm at 11.00 kts
Bunker at max displacement = 1,812 tons (90% coal)

Complement:
303 - 394

Cost:
£0.242 million / $0.967 million

Distribution of weights at normal displacement:
Armament: 43 tons, 0.8 %
- Guns: 43 tons, 0.8 %
Armour: 57 tons, 1.1 %
- Belts: 44 tons, 0.9 %
- Armament: 7 tons, 0.1 %
- Conning Tower: 6 tons, 0.1 %
Machinery: 617 tons, 12.0 %
Hull, fittings & equipment: 1,249 tons, 24.3 %
Fuel, ammunition & stores: 1,125 tons, 21.9 %
Miscellaneous weights: 2,050 tons, 39.9 %
- Hull below water: 1,000 tons
- Hull above water: 900 tons
- On freeboard deck: 100 tons
- Above deck: 50 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,126 lbs / 3,232 Kg = 114.0 x 5.0 " / 127 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.36
Metacentric height 2.9 ft / 0.9 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 1.50

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.540 / 0.557
Length to Beam Ratio: 6.94 : 1
'Natural speed' for length: 18.44 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 30.00 %, 17.00 ft / 5.18 m, 15.00 ft / 4.57 m
- Forward deck: 30.00 %, 15.00 ft / 4.57 m, 15.00 ft / 4.57 m
- Aft deck: 25.00 %, 15.00 ft / 4.57 m, 15.00 ft / 4.57 m
- Quarter deck: 15.00 %, 15.00 ft / 4.57 m, 15.00 ft / 4.57 m
- Average freeboard: 15.24 ft / 4.65 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82.4 %
- Above water (accommodation/working, high = better): 108.6 %
Waterplane Area: 11,519 Square feet or 1,070 Square metres
Displacement factor (Displacement / loading): 148 %
Structure weight / hull surface area: 67 lbs/sq ft or 329 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.25
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

50t - 2 x Long-range wireless
200t - 4 x 25-ton landing boats
400t - 200 marines
400t - Resupply support

Desertfox · April 09, 2020, 03:10:37 PM

Tatsuta Maru, RECLASSIFIED

Desertfox · June 05, 2020, 02:38:38 PM

Kaibokan, RECLASSIFIED

Desertfox · June 26, 2020, 11:06:39 AM

Jingei I (S/M) class, Japan Torpedo Boat Tender laid down 1913

Displacement:
2,099 t light; 2,158 t standard; 2,370 t normal; 2,539 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(300.00 ft / 300.00 ft) x 50.00 ft x (9.70 / 10.26 ft)
(91.44 m / 91.44 m) x 15.24 m x (2.96 / 3.13 m)

Armament:
2 - 3.00" / 76.2 mm 45.0 cal guns - 13.62lbs / 6.18kg shells, 250 per gun
Breech loading guns in deck mounts, 1913 Model
2 x Single mounts on centreline ends, evenly spread
12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 300 per gun
Breech loading guns in deck mounts, 1913 Model
4 x Triple mounts on sides, evenly spread
Weight of broadside 76 lbs / 34 kg

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 2,009 ihp / 1,498 Kw = 14.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 381 tons (50% coal)

Complement:
169 - 220

Cost:
£0.104 million / $0.415 million

Distribution of weights at normal displacement:
Armament: 12 tons, 0.5 %
- Guns: 12 tons, 0.5 %
Machinery: 126 tons, 5.3 %
Hull, fittings & equipment: 660 tons, 27.9 %
Fuel, ammunition & stores: 271 tons, 11.4 %
Miscellaneous weights: 1,300 tons, 54.9 %
- Hull below water: 400 tons
- Hull above water: 70 tons
- On freeboard deck: 800 tons
- Above deck: 30 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,376 lbs / 2,892 Kg = 472.3 x 3.0 " / 76 mm shells or 2.7 torpedoes
Stability (Unstable if below 1.00): 1.43
Metacentric height 3.3 ft / 1.0 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.49

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck ,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.570 / 0.578
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 36 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 25.00 %, 15.00 ft / 4.57 m, 14.00 ft / 4.27 m
- Forward deck: 30.00 %, 7.00 ft / 2.13 m, 7.00 ft / 2.13 m
- Aft deck: 20.00 %, 7.00 ft / 2.13 m, 7.00 ft / 2.13 m
- Quarter deck: 25.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Average freeboard: 10.60 ft / 3.23 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 42.2 %
- Above water (accommodation/working, high = better): 84.2 %
Waterplane Area: 10,667 Square feet or 991 Square metres
Displacement factor (Displacement / loading): 149 %
Structure weight / hull surface area: 49 lbs/sq ft or 239 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.10
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

30t - LR wireless + FC
40t - 20 Marines
30t - Camouflage
800t - Cranes and space for 10 x 40t TB (M) or 4 x 100t Submarines (S)
400t - 4,000t of Out-of-port resupply

Desertfox · June 26, 2020, 11:07:11 AM

Jingei II class, Japan Submarine Tender laid down 1913

Displacement:
1,537 t light; 1,584 t standard; 1,759 t normal; 1,898 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(300.00 ft / 300.00 ft) x 40.00 ft x (9.00 / 9.46 ft)
(91.44 m / 91.44 m) x 12.19 m x (2.74 / 2.88 m)

Armament:
2 - 3.00" / 76.2 mm 45.0 cal guns - 13.62lbs / 6.18kg shells, 250 per gun
Breech loading guns in deck mounts, 1913 Model
2 x Single mounts on centreline ends, evenly spread
12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 300 per gun
Breech loading guns in deck mounts, 1913 Model
4 x Triple mounts on sides, evenly spread
Weight of broadside 76 lbs / 34 kg

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 3,339 ihp / 2,491 Kw = 17.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 314 tons (50% coal)

Complement:
135 - 176

Cost:
£0.095 million / $0.381 million

Distribution of weights at normal displacement:
Armament: 12 tons, 0.7 %
- Guns: 12 tons, 0.7 %
Machinery: 210 tons, 11.9 %
Hull, fittings & equipment: 545 tons, 31.0 %
Fuel, ammunition & stores: 221 tons, 12.6 %
Miscellaneous weights: 770 tons, 43.8 %
- Hull below water: 500 tons
- On freeboard deck: 240 tons
- Above deck: 30 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,605 lbs / 1,635 Kg = 267.1 x 3.0 " / 76 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.58
Metacentric height 2.7 ft / 0.8 m
Roll period: 10.2 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.57

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.570 / 0.585
Length to Beam Ratio: 7.50 : 1
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 30.00 %, 14.00 ft / 4.27 m, 10.00 ft / 3.05 m
- Forward deck: 30.00 %, 10.00 ft / 3.05 m, 10.00 ft / 3.05 m
- Aft deck: 15.00 %, 10.00 ft / 3.05 m, 10.00 ft / 3.05 m
- Quarter deck: 25.00 %, 10.00 ft / 3.05 m, 10.00 ft / 3.05 m
- Average freeboard: 10.48 ft / 3.19 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 73.1 %
- Above water (accommodation/working, high = better): 120.4 %
Waterplane Area: 8,533 Square feet or 793 Square metres
Displacement factor (Displacement / loading): 143 %
Structure weight / hull surface area: 47 lbs/sq ft or 230 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.13
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

30t - LR wireless + FC
240t - Increased accommodations and spare
500t - 5,000t of Out-of-port resupply

Desertfox · June 26, 2020, 11:08:06 AM

Toph Maru I, RECLASSIFIED

Desertfox · June 26, 2020, 11:08:38 AM

Boat #13, RECLASSIFIED

Desertfox · June 26, 2020, 11:13:25 AM

"Fishing Boat 42", RECLASSIFIED

Desertfox · June 17, 2021, 10:47:24 AM

I have a Jingei class aux with no job just sitting around. So the Jingei (sub transport version) will be refitted with a zeppelin mooring mast and supplies, get a defensive armament upgrade, and a rearrangement of her boat transport capabilities. She carries 6 boats (4x40t and 2x20t) to provide security at the anchorage and assist with the mooring process.

Jingei (Z), Japan Zeppelin Tender laid down 1913

Displacement:
2,095 t light; 2,158 t standard; 2,370 t normal; 2,539 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(300.00 ft / 300.00 ft) x 50.00 ft x (9.70 / 10.26 ft)
(91.44 m / 91.44 m) x 15.24 m x (2.96 / 3.13 m)

Armament:
2 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 100 per gun
Breech loading guns in deck mounts, 1913 Model
2 x Single mounts on centreline ends, evenly spread
12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 300 per gun
Breech loading guns in deck mounts, 1913 Model
4 x Triple mounts on sides, evenly spread
Weight of broadside 174 lbs / 79 kg

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.10" / 3 mm - -

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 2,009 ihp / 1,498 Kw = 14.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 381 tons (50% coal)

Complement:
169 - 220

Cost:
£0.109 million / $0.435 million

Distribution of weights at normal displacement:
Armament: 27 tons, 1.1 %
- Guns: 27 tons, 1.1 %
Armour: 1 tons, 0.0 %
- Armament: 1 tons, 0.0 %
Machinery: 126 tons, 5.3 %
Hull, fittings & equipment: 662 tons, 27.9 %
Fuel, ammunition & stores: 274 tons, 11.6 %
Miscellaneous weights: 1,280 tons, 54.0 %
- Hull below water: 400 tons
- Hull above water: 50 tons
- On freeboard deck: 800 tons
- Above deck: 30 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,256 lbs / 2,838 Kg = 100.1 x 5.0 " / 127 mm shells or 2.6 torpedoes
Stability (Unstable if below 1.00): 1.43
Metacentric height 3.3 ft / 1.0 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.49

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck ,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.570 / 0.578
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 36 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 25.00 %, 15.00 ft / 4.57 m, 14.00 ft / 4.27 m
- Forward deck: 30.00 %, 7.00 ft / 2.13 m, 7.00 ft / 2.13 m
- Aft deck: 20.00 %, 7.00 ft / 2.13 m, 7.00 ft / 2.13 m
- Quarter deck: 25.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Average freeboard: 10.60 ft / 3.23 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 43.0 %
- Above water (accommodation/working, high = better): 84.2 %
Waterplane Area: 10,667 Square feet or 991 Square metres
Displacement factor (Displacement / loading): 147 %
Structure weight / hull surface area: 50 lbs/sq ft or 243 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.11
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

30t - LR wireless + FC
50t - 20 Marines + camouflauge
400t - Mast and mooring equippment for 1 Zeppelin
400t - Cranes and space for up to 4 x 40t MTB/Boats and 2 x 20t MTB/Boats
300t - 3,000t of Out-of-port resupply
100t - Zeppelin support supplies

Desertfox · June 17, 2021, 10:52:23 AM

Nice round 420t of misc weight for all of your drug smuggling needs...

Matsu Maru, Japan Fast Transport/Dispatch Boat laid down 1917

Displacement:
1,327 t light; 1,379 t standard; 1,711 t normal; 1,977 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(342.47 ft / 340.00 ft) x 44.00 ft x (9.10 / 10.08 ft)
(104.38 m / 103.63 m) x 13.41 m x (2.77 / 3.07 m)

Armament:
2 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 180 per gun
Quick firing guns in deck mounts, 1917 Model
2 x Single mounts on centreline ends, evenly spread
1 raised mount - superfiring
12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 200 per gun
Quick firing guns in deck mounts, 1917 Model
4 x Single mounts on sides, evenly spread
Weight of broadside 174 lbs / 79 kg

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.10" / 3 mm - -

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 6,705 shp / 5,002 Kw = 21.00 kts
Range 7,000nm at 14.00 kts
Bunker at max displacement = 598 tons

Complement:
132 - 172

Cost:
£0.163 million / $0.651 million

Distribution of weights at normal displacement:
Armament: 32 tons, 1.9 %
- Guns: 32 tons, 1.9 %
Armour: 1 tons, 0.0 %
- Armament: 1 tons, 0.0 %
Machinery: 246 tons, 14.4 %
Hull, fittings & equipment: 628 tons, 36.7 %
Fuel, ammunition & stores: 385 tons, 22.5 %
Miscellaneous weights: 420 tons, 24.5 %
- Hull below water: 90 tons
- Hull above water: 170 tons
- On freeboard deck: 130 tons
- Above deck: 30 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,554 lbs / 1,612 Kg = 56.9 x 5.0 " / 127 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.43
Metacentric height 2.7 ft / 0.8 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 1.28

Hull form characteristics:
Hull has raised forecastle,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.440 / 0.459
Length to Beam Ratio: 7.73 : 1
'Natural speed' for length: 18.44 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 30.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Forward deck: 30.00 %, 9.00 ft / 2.74 m, 9.00 ft / 2.74 m
- Aft deck: 25.00 %, 9.00 ft / 2.74 m, 9.00 ft / 2.74 m
- Quarter deck: 15.00 %, 9.00 ft / 2.74 m, 9.00 ft / 2.74 m
- Average freeboard: 10.50 ft / 3.20 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 69.4 %
- Above water (accommodation/working, high = better): 122.9 %
Waterplane Area: 9,466 Square feet or 879 Square metres
Displacement factor (Displacement / loading): 172 %
Structure weight / hull surface area: 51 lbs/sq ft or 250 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.07
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

5t - 1908 Fire Control
25t - LR Wireless
20t - Observation Balloon
10t - Minesweeping Gear
120t - 4 x 15t Boats
240t - Supplies/Marines

Desertfox · October 27, 2021, 10:28:24 AM

Japan has plenty of undeveloped anchorages and short-legged destroyers. A dedicated Destroyer/Sub tender is in order. Can support a full squadron of 12 subs or destroyers, while freeing up the big Kobayashi Marus for use with the fleet.

Seta Maru, Japan Destroyer/Submarine Tender laid down 1917

Displacement:
1,997 t light; 2,064 t standard; 2,666 t normal; 3,148 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(302.47 ft / 300.00 ft) x 40.00 ft x (14.40 / 16.43 ft)
(92.19 m / 91.44 m) x 12.19 m x (4.39 / 5.01 m)

Armament:
2 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 140 per gun
Breech loading guns in deck and hoist mounts, 1917 Model
2 x Single mounts on centreline ends, evenly spread
12 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 150 per gun
Breech loading guns in deck mounts, 1917 Model
4 x Triple mounts on sides, evenly spread
Weight of broadside 174 lbs / 79 kg

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

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 4,148 shp / 3,094 Kw = 17.00 kts
Range 9,700nm at 14.00 kts
Bunker at max displacement = 1,084 tons

Complement:
185 - 241

Cost:
£0.193 million / $0.770 million

Distribution of weights at normal displacement:
Armament: 42 tons, 1.6 %
- Guns: 42 tons, 1.6 %
Armour: 5 tons, 0.2 %
- Armament: 5 tons, 0.2 %
Machinery: 152 tons, 5.7 %
Hull, fittings & equipment: 643 tons, 24.1 %
Fuel, ammunition & stores: 669 tons, 25.1 %
Miscellaneous weights: 1,155 tons, 43.3 %
- Hull below water: 500 tons
- Hull above water: 500 tons
- On freeboard deck: 100 tons
- Above deck: 55 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,272 lbs / 1,938 Kg = 68.4 x 5.0 " / 127 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.35
Metacentric height 2.2 ft / 0.7 m
Roll period: 11.4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.09
Seaboat quality (Average = 1.00): 1.54

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.540 / 0.559
Length to Beam Ratio: 7.50 : 1
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 14.00 ft / 4.27 m, 9.00 ft / 2.74 m
- Forward deck: 30.00 %, 9.00 ft / 2.74 m, 9.00 ft / 2.74 m
- Aft deck: 35.00 %, 9.00 ft / 2.74 m, 9.00 ft / 2.74 m
- Quarter deck: 15.00 %, 9.00 ft / 2.74 m, 9.00 ft / 2.74 m
- Average freeboard: 9.40 ft / 2.87 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 65.3 %
- Above water (accommodation/working, high = better): 76.9 %
Waterplane Area: 8,297 Square feet or 771 Square metres
Displacement factor (Displacement / loading): 166 %
Structure weight / hull surface area: 54 lbs/sq ft or 263 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.33
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

55t - Long-range Wireless/Experimental Radar/FC
80t - 2 x 20 ton Boats
20t - Observation Balloon
1000t - Out-of-Port Resupply

Desertfox · April 07, 2022, 12:26:45 PM

Another auxiliary, a dedicated multi-purpose fast dispatch boat. Good range at a good cruising speed (5500nm @14kts) and space for diplomatic personnel and boats for use in areas without suitable harbors. For fleet use it can serve as a rescue boat and emergency flagship, and it has an enhanced electronics kit allowing it to be used for intelligence gathering. It is not actually fitted with weapons, but has been designed to mount a limited defensive armament suite (25mm auto cannons and short range electric torpedoes).

Miyako Maru, Japan Dispatch Boat laid down 1920

Displacement:
1,192 t light; 1,220 t standard; 1,373 t normal; 1,495 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(303.00 ft / 300.00 ft) x 40.00 ft x (9.10 / 9.66 ft)
(92.35 m / 91.44 m) x 12.19 m x (2.77 / 2.95 m)

Armament:
4 - 1.00" / 25.4 mm 70.0 cal guns - 0.56lbs / 0.25kg shells, 150 per gun
Machine guns in deck mounts, 1920 Model
2 x Twin mounts on centreline ends, evenly spread
Weight of broadside 2 lbs / 1 kg

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 2 shafts, 10,419 shp / 7,773 Kw = 24.00 kts
Range 4,000nm at 14.00 kts
Bunker at max displacement = 276 tons

Complement:
112 - 146

Cost:
£0.220 million / $0.880 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0.0 %
- Guns: 1 tons, 0.0 %
Machinery: 364 tons, 26.5 %
Hull, fittings & equipment: 517 tons, 37.7 %
Fuel, ammunition & stores: 181 tons, 13.2 %
Miscellaneous weights: 310 tons, 22.6 %
- Hull below water: 90 tons
- On freeboard deck: 195 tons
- Above deck: 25 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,066 lbs / 937 Kg = 4,131.4 x 1.0 " / 25 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 1.8 ft / 0.5 m
Roll period: 12.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has raised forecastle,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.440 / 0.451
Length to Beam Ratio: 7.50 : 1
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 30.00 %, 17.00 ft / 5.18 m, 15.00 ft / 4.57 m
- Forward deck: 30.00 %, 10.00 ft / 3.05 m, 10.00 ft / 3.05 m
- Aft deck: 25.00 %, 10.00 ft / 3.05 m, 10.00 ft / 3.05 m
- Quarter deck: 15.00 %, 10.00 ft / 3.05 m, 10.00 ft / 3.05 m
- Average freeboard: 11.74 ft / 3.58 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.0 %
- Above water (accommodation/working, high = better): 129.1 %
Waterplane Area: 7,593 Square feet or 705 Square metres
Displacement factor (Displacement / loading): 132 %
Structure weight / hull surface area: 47 lbs/sq ft or 230 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.55
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

25t - LR Wireless
25t - Experimental Radar
25t - Hydrophone Kit
25t - Flagship/Diplomatic/SIGINT facilities
25t - Observation Balloon
15t - 4x21" fixed internal torpedo tubes
80t - 2 x 20t Boats
90t - Electric Drive