Some very interesting designs here. And the surprising thing is that they SS quite well..
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Andrej Pervozvannyj, Russian Battleship laid down 1906
Displacement:
14,815 t light; 15,489 t standard; 16,708 t normal; 17,683 t full load
Dimensions: Length overall / water x beam x draught
472.80 ft / 467.80 ft x 79.70 ft x 29.10 ft (normal load)
144.11 m / 142.59 m x 24.29 m x 8.87 m
Armament:
8 - 12.00" / 305 mm guns (4x2 guns), 864.00lbs / 391.90kg shells, 1906 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 1 raised mount - superfiring
16 - 4.13" / 105 mm guns in single mounts, 35.22lbs / 15.98kg shells, 1906 Model
Quick firing guns in casemate mounts
on side, all amidships
2 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1906 Model
Quick firing guns in deck mounts
on centreline, evenly spread, all raised mounts
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1906 Model
Quick firing guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 7,504 lbs / 3,404 kg
Shells per gun, main battery: 80
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 9.00" / 229 mm 300.00 ft / 91.44 m 12.00 ft / 3.66 m
Ends: 3.00" / 76 mm 80.00 ft / 24.38 m 12.00 ft / 3.66 m
87.80 ft / 26.76 m Unarmoured ends
Upper: 5.00" / 127 mm 250.00 ft / 76.20 m 10.00 ft / 3.05 m
Main Belt covers 99 % of normal length
- Torpedo Bulkhead:
1.50" / 38 mm 400.00 ft / 121.92 m 20.00 ft / 6.10 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 8.00" / 203 mm 10.0" / 254 mm
2nd: 3.00" / 76 mm - -
- Armour deck: 1.50" / 38 mm, Conning tower: 9.00" / 229 mm
Machinery:
Coal fired boilers, steam turbines,
Direct drive, 2 shafts, 19,281 shp / 14,384 Kw = 19.50 kts
Range 4,000nm at 12.00 kts
Bunker at max displacement = 2,194 tons (100% coal)
Complement:
734 - 955
Cost:
£1.499 million / $5.997 million
Distribution of weights at normal displacement:
Armament: 938 tons, 5.6 %
Armour: 5,275 tons, 31.6 %
- Belts: 2,114 tons, 12.7 %
- Torpedo bulkhead: 444 tons, 2.7 %
- Armament: 1,875 tons, 11.2 %
- Armour Deck: 715 tons, 4.3 %
- Conning Tower: 127 tons, 0.8 %
Machinery: 1,377 tons, 8.2 %
Hull, fittings & equipment: 7,125 tons, 42.6 %
Fuel, ammunition & stores: 1,893 tons, 11.3 %
Miscellaneous weights: 100 tons, 0.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
23,629 lbs / 10,718 Kg = 27.3 x 12.0 " / 305 mm shells or 4.2 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 3.7 ft / 1.1 m
Roll period: 17.4 seconds
Steadiness - As gun platform (Average = 50 %): 79 %
- Recoil effect (Restricted arc if above 1.00): 0.99
Seaboat quality (Average = 1.00): 1.88
Hull form characteristics:
Hull has raised quarterdeck
Block coefficient: 0.539
Length to Beam Ratio: 5.87 : 1
'Natural speed' for length: 21.63 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 42
Bow angle (Positive = bow angles forward): -15.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.79 ft / 7.25 m
- Forecastle (20 %): 23.79 ft / 7.25 m
- Mid (50 %): 23.79 ft / 7.25 m
- Quarterdeck (15 %): 23.79 ft / 7.25 m (15.14 ft / 4.61 m before break)
- Stern: 15.14 ft / 4.61 m
- Average freeboard: 21.63 ft / 6.59 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.7 %
- Above water (accommodation/working, high = better): 143.4 %
Waterplane Area: 25,753 Square feet or 2,393 Square metres
Displacement factor (Displacement / loading): 107 %
Structure weight / hull surface area: 179 lbs/sq ft or 873 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.02
- Longitudinal: 3.15
- Overall: 1.14
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
Main Battery in a "Kongo"/"Tiger"-type layout. The 75mm cannons are on top of "B" and "X" turrets.