B-1905-class

B-1905, Rema Nova Semi-Dreadnought Battleship laid down 1905

## Displacement:

 17,766 t light; 18,900 t standard; 20,361 t normal; 21,530 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
 (504.56 ft / 500.00 ft) x 84.00 ft x (27.50 / 28.81 ft)
 (153.79 m / 152.40 m) x 25.60 m x (8.38 / 8.78 m)

## Armament:

4 - 12.00" / 305 mm 45.0 cal guns - 880.20lbs / 399.25kg shells, 110 per gun

 Breech loading guns in turret on barbette mounts, 1905 Model
 2 x Twin mounts on centreline ends, evenly spread

10 - 11.00" / 279 mm 40.0 cal guns - 637.82lbs / 289.31kg shells, 110 per gun

 Breech loading guns in turret on barbette mounts, 1891 Model
 4 x Twin mounts on side ends, evenly spread
 2 x Single mounts on sides amidships

14 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 180 per gun

 Quick firing guns in casemate mounts, 1901 Model
 14 x Single mounts on side ends, majority forward

8 - 3.00" / 76.2 mm 50.0 cal guns - 14.29lbs / 6.48kg shells, 300 per gun

 Quick firing guns in deck mounts, 1892 Model
 8 x Single mounts on sides, evenly spread

14 - 2.24" / 57.0 mm 55.0 cal guns - 6.11lbs / 2.77kg shells, 300 per gun

 Quick firing guns in deck mounts, 1903 Model
 12 x Single mounts on sides, evenly spread

Weight of broadside 10,981 lbs / 4,981 kg

## Armour:

- Belts: Width (max) Length (avg) Height (avg)

 Main: 12.5" / 318 mm 325.00 ft / 99.06 m 11.00 ft / 3.35 m

 Ends: 3.50" / 89 mm 174.98 ft / 53.33 m 11.00 ft / 3.35 m

 Upper: 7.00" / 178 mm 325.00 ft / 99.06 m 8.00 ft / 2.44 m

 Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:

 1.50" / 38 mm 325.00 ft / 99.06 m 26.11 ft / 7.96 m

 Beam between torpedo bulkheads 77.00 ft / 23.47 m

- Gun armour:

Face (max)

Other gunhouse (avg)

Barbette/hoist (max)

 Main: 12.0" / 305 mm 8.00" / 203 mm 10.0" / 254 mm

 2nd: 12.0" / 305 mm 8.00" / 203 mm 10.0" / 254 mm

 3rd: 3.00" / 76 mm - -

- Armoured deck - multiple decks:

 Fore and Aft decks: 3.00" / 76 mm

 Forecastle: 2.00" / 51 mm

 Quarter deck: 2.00" / 51 mm

- Conning towers:

Forward 12.00" / 305 mm,

Aft 0.00" / 0 mm

## Machinery:

 Coal and oil fired boilers, steam turbines,

 Direct drive, 2 shafts, 24,187 shp / 18,043 Kw = 20.00 kts

 Range 5,000nm at 11.00 kts

 Bunker at max displacement = 2,630 tons (90% coal)

## Distribution of weights at normal displacement:

 Armament: 1,929 tons, 9.5 %
 - Guns: 1,929 tons, 9.5 %
 Armour: 7,756 tons, 38.1 %
 - Belts: 3,030 tons, 14.9 %
 - Torpedo bulkhead: 471 tons, 2.3 %
 - Armament: 2,425 tons, 11.9 %
 - Armour Deck: 1,637 tons, 8.0 %
 - Conning Tower: 193 tons, 0.9 %
 Machinery: 1,996 tons, 9.8 %
 Hull, fittings & equipment: 6,085 tons, 29.9 %
 Fuel, ammunition & stores: 2,595 tons, 12.7 %
 Miscellaneous weights: 0 tons, 0.0 %

## Overall survivability and seakeeping ability:

 Survivability (Non-critical penetrating hits needed to sink ship):
 25,542 lbs / 11,586 Kg = 29.6 x 12.0 " / 305 mm shells or 4.3 torpedoes
 Stability (Unstable if below 1.00): 1.20
 Metacentric height 5.4 ft / 1.6 m
 Roll period: 15.2 seconds
 Steadiness - As gun platform (Average = 50 %): 67 %
 - Recoil effect (Restricted arc if above 1.00): 0.61
 Seaboat quality (Average = 1.00): 1.34

## Hull form characteristics:

 Hull has a flush deck,
 a normal bow and a round stern
 Block coefficient (normal/deep): 0.617 / 0.623
 Length to Beam Ratio: 5.95 : 1
 'Natural speed' for length: 22.36 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: -8.00 ft / -2.44 m
 Freeboard (% = length of deck as a percentage of waterline length):
 Fore end, Aft end
 - Forecastle: 20.00 %, 17.00 ft / 5.18 m, 16.00 ft / 4.88 m
 - Forward deck: 30.00 %, 16.00 ft / 4.88 m, 15.65 ft / 4.77 m
 - Aft deck: 35.00 %, 15.65 ft / 4.77 m, 15.65 ft / 4.77 m
 - Quarter deck: 15.00 %, 15.65 ft / 4.77 m, 15.65 ft / 4.77 m
 - Average freeboard: 15.85 ft / 4.83 m
 Ship tends to be wet forward

## Ship space, strength and comments:

 Space - Hull below water (magazines/engines, low = better): 80.1 %
 - Above water (accommodation/working, high = better): 109.9 %
 Waterplane Area: 31,209 Square feet or 2,899 Square metres
 Displacement factor (Displacement / loading): 100 %
 Structure weight / hull surface area: 161 lbs/sq ft or 787 Kg/sq metre
 Hull strength (Relative):
 - Cross-sectional: 0.94
 - Longitudinal: 1.68
 - Overall: 1.00
 Excellent machinery, storage, compartmentation space
 Adequate accommodation and workspace room
 Good seaboat, rides out heavy weather easily