Black Prince, british armoured cruiser laid down 1902 (Engine 1903)
Displacement:
14 756 t light; 15 355 t standard; 16 905 t normal; 18 145 t full load
Dimensions: Length overall / water x beam x draught
535,86 ft / 535,30 ft x 72,57 ft x 26,67 ft (normal load)
163,33 m / 163,16 m x 22,12 m x 8,13 m
Armament:
8 - 9,21" / 234 mm guns (4x2 guns), 390,95lbs / 177,33kg shells, 1902 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
6 - 7,48" / 190 mm guns in single mounts, 209,28lbs / 94,93kg shells, 1902 Model
Breech loading guns in casemate mounts
on side, all amidships
8 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1902 Model
Quick firing guns in casemate mounts
on side ends, evenly spread
4 guns in hull casemates - Limited use in heavy seas
Weight of broadside 4 490 lbs / 2 037 kg
Shells per gun, main battery: 100
2 - 18,0" / 457 mm submerged torpedo tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 6,50" / 165 mm 270,51 ft / 82,45 m 12,50 ft / 3,81 m
Ends: 2,99" / 76 mm 102,46 ft / 31,23 m 10,01 ft / 3,05 m
162,34 ft / 49,48 m Unarmoured ends
Main Belt covers 78% of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
0,79" / 20 mm 134,42 ft / 40,97 m 18,90 ft / 5,76 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7,99" / 203 mm 5,98" / 152 mm 7,99" / 203 mm
2nd: 5,98" / 152 mm - -
3rd: 4,02" / 102 mm - -
- Armour deck: 2,52" / 64 mm, Conning tower: 10,98" / 279 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 31 999 ihp / 23 871 Kw = 22,50 kts
Range 8 450nm at 10,00 kts
Bunker at max displacement = 2 790 tons (100% coal)
Complement:
740 - 963
Cost:
£1,657 million / $6,626 million
Distribution of weights at normal displacement:
Armament: 561 tons, 3,3%
Armour: 3 863 tons, 22,9%
- Belts: 1 111 tons, 6,6%
- Torpedo bulkhead: 74 tons, 0,4%
- Armament: 1 233 tons, 7,3%
- Armour Deck: 1 289 tons, 7,6%
- Conning Tower: 156 tons, 0,9%
Machinery: 4 776 tons, 28,3%
Hull, fittings & equipment: 5 556 tons, 32,9%
Fuel, ammunition & stores: 2 149 tons, 12,7%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12 790 lbs / 5 801 Kg = 32,7 x 9,2 " / 234 mm shells or 1,7 torpedoes
Stability (Unstable if below 1.00): 1,16
Metacentric height 4,1 ft / 1,3 m
Roll period: 15,0 seconds
Steadiness - As gun platform (Average = 50 %): 80 %
- Recoil effect (Restricted arc if above 1.00): 0,66
Seaboat quality (Average = 1.00): 1,60
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,571
Length to Beam Ratio: 7,38 : 1
'Natural speed' for length: 23,14 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -15,00 degrees
Stern overhang: 0,56 ft / 0,17 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25,92 ft / 7,90 m
- Forecastle (14%): 22,44 ft / 6,84 m
- Mid (67%): 22,44 ft / 6,84 m (16,47 ft / 5,02 m aft of break)
- Quarterdeck (16%): 16,47 ft / 5,02 m
- Stern: 17,45 ft / 5,32 m
- Average freeboard: 20,77 ft / 6,33 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 163,9%
- Above water (accommodation/working, high = better): 149,6%
Waterplane Area: 27 651 Square feet or 2 569 Square metres
Displacement factor (Displacement / loading): 94%
Structure weight / hull surface area: 129 lbs/sq ft or 631 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,60
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
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