Duncan, british light battlecruiser laid down 1899 (Engine 1912)
Displacement:
11 052 t light; 11 546 t standard; 13 237 t normal; 14 589 t full load
Dimensions: Length overall / water x beam x draught
431,99 ft / 431,99 ft x 75,49 ft x 25,69 ft (normal load)
131,67 m / 131,67 m x 23,01 m x 7,83 m
Armament:
4 - 12,01" / 305 mm guns (2x2 guns), 865,70lbs / 392,67kg shells, 1899 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
12 - 5,98" / 152 mm guns in single mounts, 107,15lbs / 48,60kg shells, 1899 Model
Quick firing guns in casemate mounts
on side, all amidships
6 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1899 Model
Quick firing guns in deck mounts
on side, all amidships
4 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1899 Model
Quick firing guns in casemate mounts
on side ends, evenly spread
Weight of broadside 4 883 lbs / 2 215 kg
Shells per gun, main battery: 80
4 - 18,0" / 457 mm submerged torpedo tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7,01" / 178 mm 237,99 ft / 72,54 m 13,88 ft / 4,23 m
Ends: 4,02" / 102 mm 86,52 ft / 26,37 m 13,88 ft / 4,23 m
107,48 ft / 32,76 m Unarmoured ends
Main Belt covers 85% of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
1,46" / 37 mm 118,27 ft / 36,05 m 23,00 ft / 7,01 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10,0" / 254 mm 7,99" / 203 mm 11,0" / 279 mm
2nd: 5,98" / 152 mm - -
4th: 5,98" / 152 mm - -
- Armour deck: 2,01" / 51 mm, Conning tower: 12,01" / 305 mm
Machinery:
Coal fired boilers, steam turbines,
Direct drive, 2 shafts, 55 259 shp / 41 223 Kw = 26,00 kts
Range 9 000nm at 12,00 kts
Bunker at max displacement = 3 044 tons (100% coal)
Complement:
616 - 802
Cost:
£1,239 million / $4,955 million
Distribution of weights at normal displacement:
Armament: 610 tons, 4,6%
Armour: 3 498 tons, 26,4%
- Belts: 1 246 tons, 9,4%
- Torpedo bulkhead: 147 tons, 1,1%
- Armament: 1 113 tons, 8,4%
- Armour Deck: 848 tons, 6,4%
- Conning Tower: 145 tons, 1,1%
Machinery: 2 424 tons, 18,3%
Hull, fittings & equipment: 4 520 tons, 34,2%
Fuel, ammunition & stores: 2 184 tons, 16,5%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14 079 lbs / 6 386 Kg = 16,3 x 12,0 " / 305 mm shells or 2,2 torpedoes
Stability (Unstable if below 1.00): 1,24
Metacentric height 4,8 ft / 1,5 m
Roll period: 14,4 seconds
Steadiness - As gun platform (Average = 50 %): 42 %
- Recoil effect (Restricted arc if above 1.00): 0,36
Seaboat quality (Average = 1.00): 0,70
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,553
Length to Beam Ratio: 5,72 : 1
'Natural speed' for length: 20,78 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -12,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22,54 ft / 6,87 m
- Forecastle (20%): 17,95 ft / 5,47 m
- Mid (50%): 17,95 ft / 5,47 m
- Quarterdeck (15%): 17,95 ft / 5,47 m
- Stern: 17,95 ft / 5,47 m
- Average freeboard: 18,31 ft / 5,58 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 133,5%
- Above water (accommodation/working, high = better): 126,7%
Waterplane Area: 22 824 Square feet or 2 120 Square metres
Displacement factor (Displacement / loading): 100%
Structure weight / hull surface area: 134 lbs/sq ft or 654 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,30
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
Dla porównania, "oryginalny" Duncan:
Duncan, british battleship laid down 1899 (Engine 1901)
Displacement:
11 657 t light; 12 151 t standard; 13 270 t normal; 14 166 t full load
Dimensions: Length overall / water x beam x draught
431,99 ft / 431,99 ft x 75,49 ft x 25,75 ft (normal load)
131,67 m / 131,67 m x 23,01 m x 7,85 m
Armament:
4 - 12,01" / 305 mm guns (2x2 guns), 865,70lbs / 392,67kg shells, 1899 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
12 - 5,98" / 152 mm guns in single mounts, 107,15lbs / 48,60kg shells, 1899 Model
Quick firing guns in casemate mounts
on side, all amidships
6 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1899 Model
Quick firing guns in deck mounts
on side, all amidships
4 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1899 Model
Quick firing guns in casemate mounts
on side ends, evenly spread
Weight of broadside 4 883 lbs / 2 215 kg
Shells per gun, main battery: 80
4 - 18,0" / 457 mm submerged torpedo tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7,01" / 178 mm 237,99 ft / 72,54 m 13,88 ft / 4,23 m
Ends: 4,02" / 102 mm 86,52 ft / 26,37 m 13,88 ft / 4,23 m
107,48 ft / 32,76 m Unarmoured ends
Main Belt covers 85% of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10,0" / 254 mm 7,99" / 203 mm 11,0" / 279 mm
2nd: 5,98" / 152 mm - -
4th: 5,98" / 152 mm - -
- Armour deck: 2,01" / 51 mm, Conning tower: 12,01" / 305 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 15 652 ihp / 11 677 Kw = 19,00 kts
Range 7 000nm at 10,00 kts
Bunker at max displacement = 2 015 tons (100% coal)
Complement:
617 - 803
Cost:
£1,258 million / $5,031 million
Distribution of weights at normal displacement:
Armament: 610 tons, 4,6%
Armour: 3 353 tons, 25,3%
- Belts: 1 246 tons, 9,4%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 1 115 tons, 8,4%
- Armour Deck: 848 tons, 6,4%
- Conning Tower: 145 tons, 1,1%
Machinery: 2 408 tons, 18,1%
Hull, fittings & equipment: 5 285 tons, 39,8%
Fuel, ammunition & stores: 1 613 tons, 12,2%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14 052 lbs / 6 374 Kg = 16,2 x 12,0 " / 305 mm shells or 1,9 torpedoes
Stability (Unstable if below 1.00): 1,20
Metacentric height 4,6 ft / 1,4 m
Roll period: 14,8 seconds
Steadiness - As gun platform (Average = 50 %): 90 %
- Recoil effect (Restricted arc if above 1.00): 0,53
Seaboat quality (Average = 1.00): 1,79
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,553
Length to Beam Ratio: 5,72 : 1
'Natural speed' for length: 20,78 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -12,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22,60 ft / 6,89 m
- Forecastle (20%): 18,01 ft / 5,49 m
- Mid (50%): 18,01 ft / 5,49 m
- Quarterdeck (15%): 18,01 ft / 5,49 m
- Stern: 18,01 ft / 5,49 m
- Average freeboard: 18,38 ft / 5,60 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 97,5%
- Above water (accommodation/working, high = better): 126,9%
Waterplane Area: 22 824 Square feet or 2 120 Square metres
Displacement factor (Displacement / loading): 102%
Structure weight / hull surface area: 156 lbs/sq ft or 764 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,08
- Longitudinal: 2,85
- Overall: 1,19
Hull space for machinery, storage, compartmentation is adequate
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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