Coast Defense

Guinness · July 17, 2020, 08:32:39 AM

Information about Chinese Coast Defense ships can be found here.

Guinness · July 17, 2020, 08:35:36 AM

Jintai Class

(Purchased from Parthia)

2 ships
Jintai (ld 1894, refit 1904)
Yintai (ld 1894, refit 1904)

Quote
Jintai, China Coast Defense Battleship laid down 1894

Displacement:
6,747 t light; 7,162 t standard; 7,531 t normal; 7,826 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(321.52 ft / 314.96 ft) x 78.74 ft x (18.04 / 18.62 ft)
(98.00 m / 96.00 m) x 24.00 m x (5.50 / 5.68 m)

Armament:
4 - 12.01" / 305 mm 35.0 cal guns - 804.69lbs / 365.00kg shells, 95 per gun
Breech loading guns in turret on barbette mounts, 1894 Model
2 x Single mounts on centreline ends, evenly spread
10 - 6.50" / 165 mm 40.0 cal guns - 131.36lbs / 59.59kg shells, 120 per gun
Breech loading guns in casemate mounts, 1894 Model
10 x Single mounts on sides amidships
10 hull mounts in casemates- Limited use in all but light seas
8 - 2.36" / 60.0 mm 50.0 cal guns - 6.98lbs / 3.16kg shells, 200 per gun
Quick firing guns in deck mounts, 1894 Model
4 x Single mounts on side ends, evenly spread
4 raised mounts
4 x Single mounts on side ends, evenly spread
4 double raised mounts
Weight of broadside 4,588 lbs / 2,081 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 9.45" / 240 mm 204.72 ft / 62.40 m 8.20 ft / 2.50 m
Ends: 3.94" / 100 mm 110.20 ft / 33.59 m 8.20 ft / 2.50 m
Upper: 5.91" / 150 mm 204.72 ft / 62.40 m 8.20 ft / 2.50 m
Main Belt covers 100 % of normal length

The 40mm protective deck slopes down behind the main belt

- Hull Bulges:
0.00" / 0 mm 0.00 ft / 0.00 m 0.00 ft / 0.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9.84" / 250 mm 5.91" / 150 mm 9.45" / 240 mm
2nd: 5.91" / 150 mm - -

- Protected deck - single deck: 1.57" / 40 mm For and Aft decks
Forecastle: 0.79" / 20 mm Quarter deck: 0.79" / 20 mm

- Conning towers: Forward 0.98" / 25 mm, Aft 0.00" / 0 mm

Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 2 shafts, 4,045 ihp / 3,017 Kw = 14.00 kts
Range 4,450nm at 8.00 kts
Bunker at max displacement = 665 tons (100% coal)

Complement:
403 - 525

Cost:
£0.636 million / $2.544 million

Distribution of weights at normal displacement:
Armament: 737 tons, 9.8 %
Armour: 2,468 tons, 32.8 %
- Belts: 1,358 tons, 18.0 %
- Armament: 623 tons, 8.3 %
- Armour Deck: 478 tons, 6.3 %
- Conning Tower: 8 tons, 0.1 %
Machinery: 756 tons, 10.0 %
Hull, fittings & equipment: 2,565 tons, 34.1 %
Fuel, ammunition & stores: 784 tons, 10.4 %
Miscellaneous weights: 221 tons, 2.9 %
- Hull below water: 96 tons
- Hull void weights: 4 tons
- On freeboard deck: 35 tons
- Above deck: 86 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,598 lbs / 5,714 Kg = 14.6 x 12.0 " / 305 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.67
Metacentric height 8.1 ft / 2.5 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 81 %
- Recoil effect (Restricted arc if above 1.00): 0.23
Seaboat quality (Average = 1.00): 1.61

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.589 / 0.593
Length to Beam Ratio: 4.00 : 1
'Natural speed' for length: 17.75 kts
Power going to wave formation at top speed: 43 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -15.00 degrees
Stern overhang: -6.56 ft / -2.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 12.30 ft / 3.75 m, 12.30 ft / 3.75 m
- Forward deck: 30.00 %, 12.30 ft / 3.75 m, 12.30 ft / 3.75 m
- Aft deck: 35.00 %, 12.30 ft / 3.75 m, 12.30 ft / 3.75 m
- Quarter deck: 15.00 %, 12.30 ft / 3.75 m, 12.30 ft / 3.75 m
- Average freeboard: 12.30 ft / 3.75 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 70.9 %
- Above water (accommodation/working, high = better): 104.4 %
Waterplane Area: 17,953 Square feet or 1,668 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 132 lbs/sq ft or 646 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.48
- 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

Decks

+3.75 Top of upper belt.
+1.25 Top of main belt, crown of protective deck
-1.25 Bottom of main belt, bottom edge of protective deck
-5.14 Engineering deck

Misc. Weight :
96t Torpedo Nets
10t Short Range Radio
35t "Windcatcher" evaporative cooling
80t 1905 Fire Control

Refitted 1904
1904 : 18tons
+10t, Short range radio, -10t Construction Reserve
-3t 16x40L45
+5t 16x60L50, +18t ammo lockers, -23t Contstruction reserve

Guinness · July 17, 2020, 08:37:34 AM

Baumin Class

(Purchased from the Norse)

1 ship
Baumin (ld 1899, refit 1909)

Quote
Baumin, China Monitor laid down 1899

Displacement:
2,996 t light; 3,153 t standard; 3,309 t normal; 3,433 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(256.00 ft / 252.00 ft) x 50.00 ft x (13.00 / 13.43 ft)
(78.03 m / 76.81 m) x 15.24 m x (3.96 / 4.09 m)

Armament:
2 - 12.01" / 305 mm 35.0 cal guns - 811.72lbs / 368.19kg shells, 80 per gun
Breech loading guns in turret on barbette mount, 1899 Model
1 x Twin mount on centreline forward
4 - 3.94" / 100.0 mm 40.0 cal guns - 29.23lbs / 13.26kg shells, 250 per gun
Breech loading guns in deck mounts, 1899 Model
4 x Single mounts on sides, evenly spread
4 raised mounts
3 - 2.24" / 57.0 mm 40.0 cal guns - 5.42lbs / 2.46kg shells, 200 per gun
Quick firing guns in deck mounts, 1899 Model
3 x Single mounts on sides, evenly spread
4 - 1.46" / 37.0 mm 40.0 cal guns - 1.48lbs / 0.67kg shells, 300 per gun
Quick firing guns in deck mounts, 1899 Model
4 x Single mounts on centreline, evenly spread
4 double raised mounts
Weight of broadside 1,763 lbs / 799 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 279 mm 115.00 ft / 35.05 m 7.00 ft / 2.13 m
Ends: 3.00" / 76 mm 137.00 ft / 41.76 m 7.00 ft / 2.13 m
Upper: 5.00" / 127 mm 115.00 ft / 35.05 m 5.00 ft / 1.52 m
Main Belt covers 70 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 9.00" / 229 mm 11.0" / 279 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.50" / 38 mm
Forecastle: 1.50" / 38 mm Quarter deck: 1.50" / 38 mm

- Conning towers: Forward 8.00" / 203 mm, Aft 0.00" / 0 mm

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 1,995 ihp / 1,488 Kw = 13.00 kts
Range 2,000nm at 10.00 kts
Bunker at max displacement = 280 tons (90% coal)

Complement:
217 - 283

Cost:
£0.273 million / $1.091 million

Distribution of weights at normal displacement:
Armament: 245 tons, 7.4 %
- Guns: 245 tons, 7.4 %
Armour: 1,247 tons, 37.7 %
- Belts: 708 tons, 21.4 %
- Armament: 217 tons, 6.6 %
- Armour Deck: 284 tons, 8.6 %
- Conning Tower: 38 tons, 1.2 %
Machinery: 314 tons, 9.5 %
Hull, fittings & equipment: 1,045 tons, 31.6 %
Fuel, ammunition & stores: 313 tons, 9.5 %
Miscellaneous weights: 145 tons, 4.4 %
- Hull below water: 30 tons
- Hull above water: 30 tons
- Above deck: 85 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,783 lbs / 1,716 Kg = 4.4 x 12.0 " / 305 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 2.3 ft / 0.7 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.28
Seaboat quality (Average = 1.00): 0.76

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.707 / 0.710
Length to Beam Ratio: 5.04 : 1
'Natural speed' for length: 15.87 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 79
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: 20.00 %, 5.00 ft / 1.52 m, 5.00 ft / 1.52 m
- Forward deck: 30.00 %, 5.00 ft / 1.52 m, 5.00 ft / 1.52 m
- Aft deck: 35.00 %, 5.00 ft / 1.52 m, 5.00 ft / 1.52 m
- Quarter deck: 15.00 %, 5.00 ft / 1.52 m, 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): 67.6 %
- Above water (accommodation/working, high = better): 44.6 %
Waterplane Area: 10,162 Square feet or 944 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 94 lbs/sq ft or 460 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.19
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Extremely poor accommodation and workspace room
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

- 30 tons for additional damage control and pumps (hull below water)
- 30 tons for climate control (hull above water)
- 10 tons for short range wireless (above deck, installed 1903 @10 tons)
- 25 tons for long range wireless (above deck, installed 1903 @25 tons)
- 25 tons for 1905 fire control (above deck, installed 1907-8 @25 tons)
- 25 tons for 1905 remote sensing devices (above deck, installed 1907-8 @25 tons)

Total additional basic refit costs per ship: 85 tons

Coast Defense

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