Amazon Ad

Saturday, February 03, 2007

An anachronistic version of the Prince Consort completed in 1864

This is the anachronistic version of the ironclad battleship Prince Consort. This is based on the ship as rearmed in 1871 with 7-9in MLR and 8-8in MLR. My version has 7-7.6in and 8-6.5in BLR. This ship only has a 16ft high belt, due to the desire to have an earlier machinery date (1906). This is the Springsharp report:
Prince Consort, anachronistic version, Great Britain Armoured Cruiser laid down 1906

Displacement:
 5,746 t light; 6,070 t standard; 6,830 t normal; 7,438 t full load

Dimensions: Length overall / water x beam x draught
 285.10 ft / 282.00 ft x 57.00 ft x 25.00 ft (normal load)
 86.90 m / 85.95 m x 17.37 m  x 7.62 m

Armament:
      7 - 7.60" / 193 mm guns (3 mounts), 219.49lbs / 99.56kg shells, 1906 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      8 - 6.50" / 165 mm guns in single mounts, 137.31lbs / 62.28kg shells, 1906 Model
   Breech loading guns in casemate mounts 
   on side, evenly spread
   8 guns in hull casemates - Limited use in heavy seas
 Weight of broadside 2,635 lbs / 1,195 kg
 Shells per gun, main battery: 120

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.50" / 114 mm 190.00 ft / 57.91 m 16.00 ft / 4.88 m
 Ends: 3.00" / 76 mm   92.00 ft / 28.04 m 16.00 ft / 4.88 m
   Main Belt covers 104 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  1.00" / 25 mm 190.00 ft / 57.91 m 25.00 ft / 7.62 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 4.50" / 114 mm 3.00" / 76 mm  4.50" / 114 mm
 2nd: 3.00" / 76 mm 3.00" / 76 mm  3.00" / 76 mm

   - Armour deck: 1.00" / 25 mm, Conning tower: 4.50" / 114 mm

Machinery:
 Coal fired boilers, complex reciprocating steam engines, 
 Direct drive, 2 shafts, 12,695 ihp / 9,470 Kw = 19.00 kts
 Range 4,900nm at 12.00 kts
 Bunker at max displacement = 1,368 tons (100% coal)

Complement:
 375 - 488

Cost:
 £0.732 million / $2.927 million

Distribution of weights at normal displacement:
 Armament: 329 tons, 4.8 %
 Armour: 1,642 tons, 24.0 %
    - Belts: 773 tons, 11.3 %
    - Torpedo bulkhead: 176 tons, 2.6 %
    - Armament: 441 tons, 6.5 %
    - Armour Deck: 216 tons, 3.2 %
    - Conning Tower: 35 tons, 0.5 %
 Machinery: 1,814 tons, 26.6 %
 Hull, fittings & equipment: 1,962 tons, 28.7 %
 Fuel, ammunition & stores: 1,084 tons, 15.9 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   4,552 lbs / 2,065 Kg = 20.7 x 7.6 " / 193 mm shells or 1.0 torpedoes
 Stability (Unstable if below 1.00): 1.20
 Metacentric height 3.0 ft / 0.9 m
 Roll period: 13.8 seconds
 Steadiness - As gun platform (Average = 50 %): 57 %
   - Recoil effect (Restricted arc if above 1.00): 0.61
 Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.595
 Length to Beam Ratio: 4.95 : 1
 'Natural speed' for length: 16.79 kts
 Power going to wave formation at top speed: 62 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 3.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  21.00 ft / 6.40 m
    - Forecastle (20 %): 17.00 ft / 5.18 m
    - Mid (50 %):  17.00 ft / 5.18 m
    - Quarterdeck (15 %): 17.00 ft / 5.18 m
    - Stern:  17.00 ft / 5.18 m
    - Average freeboard: 17.32 ft / 5.28 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 188.9 %
  - Above water (accommodation/working, high = better): 101.0 %
 Waterplane Area: 11,700 Square feet or 1,087 Square metres
 Displacement factor (Displacement / loading): 86 %
 Structure weight / hull surface area: 102 lbs/sq ft or 499 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.86
  - Longitudinal: 3.98
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is adequate

No comments:

Amazon Context Links