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IJN : Pre-1900

Started by Logi, April 01, 2014, 12:21:59 PM

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Logi

It is the same as it's historical counterpart.


Logi

#16
A smaller Ikazuchi class destroyer to bring it more in line with the historical norm.

QuoteIkazuchi, Japan Destroyer laid down 1898 (Engine 1900)

Displacement:
   350 t light; 365 t standard; 407 t normal; 440 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229.66 ft / 229.66 ft) x 19.03 ft x (7.25 / 7.67 ft)
   (70.00 m / 70.00 m) x 5.80 m  x (2.21 / 2.34 m)

Armament:
      2 - 2.95" / 75.0 mm 45.0 cal guns - 12.99lbs / 5.89kg shells, 300 per gun
     Breech loading guns in deck mounts, 1898 Model
     2 x Single mounts on centreline, evenly spread
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 300 per gun
     Breech loading guns in casemate mounts, 1898 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 41 lbs / 19 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.20" / 5 mm         -               -
   2nd:   0.20" / 5 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 7,176 ihp / 5,353 Kw = 26.00 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 75 tons (100% coal)
     Caution: Delicate, lightweight machinery

Trial Speed: 30.00 kts

Complement:
   44 - 58

Cost:
   £0.049 million / $0.196 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 1.8 %
      - Guns: 7 tons, 1.8 %
   Armour: 2 tons, 0.5 %
      - Armament: 2 tons, 0.5 %
   Machinery: 247 tons, 60.7 %
   Hull, fittings & equipment: 90 tons, 22.0 %
   Fuel, ammunition & stores: 57 tons, 13.9 %
   Miscellaneous weights: 4 tons, 1.0 %
      - On freeboard deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     74 lbs / 33 Kg = 5.7 x 3.0 " / 75 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.36
   Metacentric height 0.7 ft / 0.2 m
   Roll period: 9.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.15
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.460
   Length to Beam Ratio: 12.07 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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 %,  13.78 ft / 4.20 m,  13.45 ft / 4.10 m
      - Forward deck:   30.00 %,  6.89 ft / 2.10 m,  6.89 ft / 2.10 m
      - Aft deck:   30.00 %,  6.89 ft / 2.10 m,  6.89 ft / 2.10 m
      - Quarter deck:   20.00 %,  6.89 ft / 2.10 m,  6.89 ft / 2.10 m
      - Average freeboard:      8.23 ft / 2.51 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 202.1 %
      - Above water (accommodation/working, high = better): 83.1 %
   Waterplane Area: 2,787 Square feet or 259 Square metres
   Displacement factor (Displacement / loading): 18 %
   Structure weight / hull surface area: 17 lbs/sq ft or 83 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.18
      - Overall: 0.54
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

2x18" single TTs with single reload

Guinness


Logi

Doh!, It's 2x18" single TTs with single reload.

Guinness

seems just fine to me then