Minelayers

[Desertfox]

Order of Battle

Tokiwa class (1906)
Tokiwa
Unnamed
Unnamed
Unnamed

Ricalde class (1905)
Suzuya (Ricalde), PURCHASED 1916
Soya (Laya), PURCHASED 1916

[Desertfox]

Tokiwa
Unnamed
Unnamed
Unnamed

Tokiwa class, Japan Minelayer laid down 1906

Displacement:
   2,250 t light; 2,319 t standard; 2,613 t normal; 2,849 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (340.00 ft / 340.00 ft) x 45.00 ft x (12.20 / 13.02 ft)
   (103.63 m / 103.63 m) x 13.72 m  x (3.72 / 3.97 m)

Armament:
      2 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 170 per gun
     Quick firing guns in deck mounts, 1906 Model
     2 x Single mounts on centreline, 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, 1906 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:   1.00" / 25 mm   290.00 ft / 88.39 m   5.00 ft / 1.52 m

   - Armoured deck - multiple decks:
   For and Aft decks: 1.00" / 25 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 7,284 ihp / 5,434 Kw = 20.00 kts
   Range 5,400nm at 10.00 kts
   Bunker at max displacement = 529 tons (90% coal)

Complement:
   182 - 237

Cost:
   £0.230 million / $0.922 million

Distribution of weights at normal displacement:
   Armament: 31 tons, 1.2 %
      - Guns: 31 tons, 1.2 %
   Armour: 150 tons, 5.7 %
      - Belts: 58 tons, 2.2 %
      - Armour Deck: 92 tons, 3.5 %
   Machinery: 1,021 tons, 39.1 %
   Hull, fittings & equipment: 679 tons, 26.0 %
   Fuel, ammunition & stores: 363 tons, 13.9 %
   Miscellaneous weights: 370 tons, 14.2 %
      - Hull above water: 300 tons
      - Above deck: 70 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,524 lbs / 691 Kg = 24.4 x 5.0 " / 127 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.56
   Metacentric height 3.2 ft / 1.0 m
   Roll period: 10.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 76 %
         - Recoil effect (Restricted arc if above 1.00): 0.04
   Seaboat quality  (Average = 1.00): 1.34

Hull form characteristics:
   Hull has low quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.490 / 0.501
   Length to Beam Ratio: 7.56 : 1
   'Natural speed' for length: 18.44 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   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:   40.00 %,  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:   0.00 %,  10.00 ft / 3.05 m,  10.00 ft / 3.05 m
      - Quarter deck:   30.00 %,  7.00 ft / 2.13 m,  7.00 ft / 2.13 m
      - Average freeboard:      9.74 ft / 2.97 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 142.4 %
      - Above water (accommodation/working, high = better): 105.7 %
   Waterplane Area: 10,102 Square feet or 939 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 50 lbs/sq ft or 245 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 0.95
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped 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

300t - Mines

[Desertfox]

Suzuya (Ricalde), PURCHASED 1916
Soya (Laya), PURCHASED 1916

Recalde, Spain Gunboat laid down 1905

Displacement:
   1 106 t light; 1 164 t standard; 1 392 t normal; 1 575 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (257,68 ft / 255,91 ft) x 33,46 ft x (11,15 / 12,27 ft)
   (78,54 m / 78,00 m) x 10,20 m  x (3,40 / 3,74 m)

Armament:
      4 - 5,51" / 140 mm 45,0 cal guns - 84,44lbs / 38,30kg shells, 150 per gun
     Breech loading guns in deck mounts, 1905 Model
     2 x Single mounts on sides, forward deck aft
     2 x Single mounts on centreline ends, evenly spread
      4 - 2,24" / 57,0 mm 45,0 cal guns - 5,71lbs / 2,59kg shells, 150 per gun
     Quick firing guns in deck mounts, 1896 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 361 lbs / 164 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0,98" / 25 mm   255,91 ft / 78,00 m   6,56 ft / 2,00 m
     Main Belt covers 154% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2,95" / 75 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0,98" / 25 mm
   Forecastle: 0,98" / 25 mm  Quarter deck: 0,98" / 25 mm

   - Conning towers: Forward 2,95" / 75 mm, Aft 0,00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 4 290 shp / 3 200 Kw = 18,80 kts
   Range 5 000nm at 10,00 kts
   Bunker at max displacement = 411 tons (90% coal)

Complement:
   113 - 148

Cost:
   £0,105 million / $0,422 million

Distribution of weights at normal displacement:
   Armament: 56 tons, 4,0%
      - Guns: 56 tons, 4,0%
   Armour: 207 tons, 14,8%
      - Belts: 61 tons, 4,4%
      - Armament: 32 tons, 2,3%
      - Armour Deck: 106 tons, 7,6%
      - Conning Tower: 8 tons, 0,6%
   Machinery: 354 tons, 25,4%
   Hull, fittings & equipment: 390 tons, 28,0%
   Fuel, ammunition & stores: 286 tons, 20,6%
   Miscellaneous weights: 100 tons, 7,2%
      - Hull above water: 45 tons
      - On freeboard deck: 30 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1 641 lbs / 744 Kg = 19,6 x 5,5 " / 140 mm shells or 0,7 torpedoes
   Stability (Unstable if below 1.00): 1,25
   Metacentric height 1,4 ft / 0,4 m
   Roll period: 11,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 93 %
         - Recoil effect (Restricted arc if above 1.00): 0,28
   Seaboat quality  (Average = 1.00): 1,33

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,510 / 0,525
   Length to Beam Ratio: 7,65 : 1
   'Natural speed' for length: 16,00 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 5,00 degrees
   Stern overhang: 0,66 ft / 0,20 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00%,  12,80 ft / 3,90 m,  12,14 ft / 3,70 m
      - Forward deck:   30,00%,  12,14 ft / 3,70 m,  11,15 ft / 3,40 m
      - Aft deck:   35,00%,  7,22 ft / 2,20 m,  7,22 ft / 2,20 m
      - Quarter deck:   15,00%,  7,22 ft / 2,20 m,  7,22 ft / 2,20 m
      - Average freeboard:      9,58 ft / 2,92 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99,1%
      - Above water (accommodation/working, high = better): 89,9%
   Waterplane Area: 5 758 Square feet or 535 Square metres
   Displacement factor (Displacement / loading): 118%
   Structure weight / hull surface area: 48 lbs/sq ft or 234 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,70
      - Overall: 1,00
   Adequate 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

Misc Distribution 100 tons
----16t 4x2 450mm Torpedos deck mounts
----16t Additional Torpedo
----25t Long Range Wireless
----5t Flag facilities
----38t 30 Mines and minelayer equipment


***


Refurbishment of the Recaldes to Japanese standards. Main changes are armament from 4x140mm + 4x57mm to 2x6" + 4x2" Gatlings and replacing the torpedoes with alot more mines.  These are now basically minelayers with a secondary colonial gunboat role.

Cost $0.4 and 0.15 BP per ship

Soyuza/Soya, Japan Minelayer laid down 1905

Displacement:
   1,115 t light; 1,165 t standard; 1,393 t normal; 1,576 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (256.00 ft / 256.00 ft) x 33.50 ft x (11.15 / 12.26 ft)
   (78.03 m / 78.03 m) x 10.21 m  x (3.40 / 3.74 m)

Armament:
      2 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
     Quick firing guns in deck mounts, 1905 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
     Quick firing guns in deck mounts, 1905 Model
     4 x Triple mounts on sides, evenly spread
      Weight of broadside 266 lbs / 121 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.00" / 25 mm   256.00 ft / 78.03 m   6.60 ft / 2.01 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   1.00" / 25 mm            -
   2nd:   0.40" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.00" / 25 mm
   Forecastle: 1.00" / 25 mm  Quarter deck: 1.00" / 25 mm

   - Conning towers: Forward 3.00" / 76 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 4,477 shp / 3,340 Kw = 19.00 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 411 tons (90% coal)

Complement:
   113 - 148

Cost:
   £0.104 million / $0.415 million

Distribution of weights at normal displacement:
   Armament: 46 tons, 3.3 %
      - Guns: 46 tons, 3.3 %
   Armour: 197 tons, 14.1 %
      - Belts: 63 tons, 4.5 %
      - Armament: 19 tons, 1.4 %
      - Armour Deck: 108 tons, 7.7 %
      - Conning Tower: 8 tons, 0.6 %
   Machinery: 369 tons, 26.5 %
   Hull, fittings & equipment: 383 tons, 27.5 %
   Fuel, ammunition & stores: 279 tons, 20.0 %
   Miscellaneous weights: 120 tons, 8.6 %
      - On freeboard deck: 95 tons
      - Above deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,759 lbs / 798 Kg = 16.3 x 6.0 " / 152 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 11.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.30

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.510 / 0.525
   Length to Beam Ratio: 7.64 : 1
   'Natural speed' for length: 16.00 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   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 %,  13.00 ft / 3.96 m,  12.10 ft / 3.69 m
      - Forward deck:   30.00 %,  12.10 ft / 3.69 m,  11.20 ft / 3.41 m
      - Aft deck:   35.00 %,  7.20 ft / 2.19 m,  7.20 ft / 2.19 m
      - Quarter deck:   15.00 %,  7.20 ft / 2.19 m,  7.20 ft / 2.19 m
      - Average freeboard:      9.59 ft / 2.92 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 96.0 %
      - Above water (accommodation/working, high = better): 89.9 %
   Waterplane Area: 5,766 Square feet or 536 Square metres
   Displacement factor (Displacement / loading): 118 %
   Structure weight / hull surface area: 46 lbs/sq ft or 227 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.65
      - Overall: 1.00
   Adequate 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

25t - LR Wireless
5t - Flag facilities
90t - Mines