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Image by thesmilingassassin and heavily modified by me[/SIZE]
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BVK Varna, ex-SMS Helgoland, Bulgarian Battleship laid down 1907 (Engine 1933)[/SIZE]
Displacement:
23,128 t light; 24,487 t standard; 25,061 t normal; 25,520 t full load
Dimensions: Length overall / water x beam x draught
552.67 ft / 546.26 ft x 93.50 ft (Bulges 98.43 ft) x 28.48 ft (normal load)
168.45 m / 166.50 m x 28.50 m (Bulges 30.00 m) x 8.68 m
Armament:
4 - 12.01" / 305 mm guns (2x2 guns), 865.70lbs / 392.67kg shells, 1907 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 12.01" / 305 mm guns (4x2 guns), 865.70lbs / 392.67kg shells, 1907 Model
Breech loading guns in turrets (on barbettes)
on side, all amidships
14 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1907 Model
Breech loading guns in casemate mounts
on side, evenly spread
8 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1933 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.79" / 20.0 mm guns (6x2 guns), 0.24lbs / 0.11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 11,999 lbs / 5,443 kg
Shells per gun, main battery: 120
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.8" / 300 mm 355.09 ft / 108.23 m 11.61 ft / 3.54 m
Ends: 5.91" / 150 mm 191.14 ft / 58.26 m 11.61 ft / 3.54 m
Upper: 7.87" / 200 mm 355.09 ft / 108.23 m 8.01 ft / 2.44 m
Main Belt covers 100 % of normal length
- Torpedo Bulkhead and Bulges:
0.98" / 25 mm 355.09 ft / 108.23 m 26.15 ft / 7.97 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15.7" / 400 mm 13.8" / 350 mm 13.8" / 350 mm
2nd: 15.7" / 400 mm 11.8" / 300 mm 13.8" / 350 mm
3rd: 5.91" / 150 mm - -
- Armour deck: 5.71" / 145 mm, Conning tower: 15.75" / 400 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 30,978 shp / 23,110 Kw = 20.80 kts
Range 5,500nm at 10.00 kts
Bunker at max displacement = 1,033 tons
Complement:
995 - 1,294
Cost:
£2.196 million / $8.783 million
Distribution of weights at normal displacement:
Armament: 1,500 tons, 6.0 %
Armour: 11,645 tons, 46.5 %
- Belts: 3,620 tons, 14.4 %
- Torpedo bulkhead: 338 tons, 1.3 %
- Armament: 3,551 tons, 14.2 %
- Armour Deck: 3,846 tons, 15.3 %
- Conning Tower: 291 tons, 1.2 %
Machinery: 903 tons, 3.6 %
Hull, fittings & equipment: 8,940 tons, 35.7 %
Fuel, ammunition & stores: 1,933 tons, 7.7 %
Miscellaneous weights: 140 tons, 0.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
37,979 lbs / 17,227 Kg = 43.9 x 12.0 " / 305 mm shells or 7.1 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 5.6 ft / 1.7 m
Roll period: 17.4 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.40
Seaboat quality (Average = 1.00): 1.33
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.573
Length to Beam Ratio: 5.55 : 1
'Natural speed' for length: 23.37 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): 14.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.72 ft / 7.84 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (15 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 17.15 ft / 5.23 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 74.6 %
- Above water (accommodation/working, high = better): 114.4 %
Waterplane Area: 36,420 Square feet or 3,383 Square metres
Displacement factor (Displacement / loading): 98 %
Structure weight / hull surface area: 178 lbs/sq ft or 870 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.59
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily
Breakdown of Miscellaneous Weights:
N/A
Ships in Class:
- BVK
Varna