Battleship "Thomas Jackson of California", Republic Gardaricalaid down 1903
Displacement:
14~829 t light; 15~431 t standard; 16~698 t normal; 17~711 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(466,54 ft / 453,74 ft) x 76,44 ft x (24,28 / 25,56 ft)
(142,20 m / 138,30 m) x 23,30 m x (7,40 / 7,79 m)
Armament:
4 - 12,00" / 305 mm 40,0 cal guns - 828,07lbs / 375,61kg shells, 80 per gun
Breech loading guns in turret on barbette mounts, 1903 Model
2 x 2-gun mounts on centreline ends, evenly spread
12 - 6,00" / 152 mm 45,0 cal guns - 108,92lbs / 49,41kg shells, 120 per gun
Quick firing guns in casemate mounts, 1904 Model
12 x Single mounts on sides amidships
16 - 2,99" / 76,0 mm 50,0 cal guns - 14,18lbs / 6,43kg shells, 200 per gun
Quick firing guns in deck mounts, 1904 Model
16 x Single mounts on sides amidships
6 - 1,85" / 47,0 mm 50,0 cal guns - 3,35lbs / 1,52kg shells, 300 per gun
Breech loading guns in deck mounts, 1904 Model
6 x Single mounts on sides amidships
Weight of broadside 4~866 lbs / 2~207 kg
8 - 18,0" / 457 mm, 14,99 ft / 4,57 m torpedoes - 0,637 t each, 5,098 t total
In 4 sets of submerged side tubes
Armour:
- Belts:Width (max)Length (avg)Height (avg)
Main:9,02" / 229 mm295,28 ft / 90,00 m7,87 ft / 2,40 m
Ends:2,99" / 76 mm 98,43 ft / 30,00 m7,87 ft / 2,40 m
60,04 ft / 18,30 m Unarmoured ends
Upper:7,99" / 203 mm295,28 ft / 90,00 m7,87 ft / 2,40 m
Main Belt covers 100% of normal length
- Gun armour:Face (max)Other gunhouse (avg)Barbette/hoist (max)
Main:9,00" / 229 mm9,00" / 229 mm10,0" / 254 mm
2nd:7,00" / 178 mm2,00" / 51 mm -
- Armoured deck - multiple decks: 2,95" / 75 mm For and Aft decks
Forecastle: 2,95" / 75 mm Quarter deck: 2,95" / 75 mm
- Conning towers: Forward 12,01" / 305 mm, Aft 0,00" / 0 mm
Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 20~622 ihp / 15~384 Kw = 19,50 kts
Range 5~000nm at 12,00 kts
Bunker at max displacement = 2~281 tons (80% coal)
Complement:
733 - 954
Cost:
£1,286 million / $5,143 million
Distribution of weights at normal displacement:
Armament: 923 tons, 5,5%
- Guns: 918 tons, 5,5%
- Torpedoes: 5 tons, 0,0%
Armour: 4~550 tons, 27,2%
- Belts: 1~853 tons, 11,1%
- Armament: 1~008 tons, 6,0%
- Armour Deck: 1~520 tons, 9,1%
- Conning Tower: 169 tons, 1,0%
Machinery: 2~973 tons, 17,8%
Hull, fittings & equipment: 6~383 tons, 38,2%
Fuel, ammunition & stores: 1~869 tons, 11,2%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
24~145 lbs / 10~952 Kg = 27,9 x 12,0 " / 305 mm shells or 2,6 torpedoes
Stability (Unstable if below 1.00): 1,34
Metacentric height 5,6 ft / 1,7 m
Roll period: 13,5 seconds
Steadiness- As gun platform (Average = 50 %): 82 %
- Recoil effect (Restricted arc if above 1.00): 0,45
Seaboat quality (Average = 1.00): 1,64
Hull form characteristics:
Hull has low quarterdeck ,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0,694 / 0,699
Length to Beam Ratio: 5,94 : 1
'Natural speed' for length: 21,30 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -8,00 degrees
Stern overhang: 1,64 ft / 0,50 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle:30,00%, 23,72 ft / 7,23 m, 20,21 ft / 6,16 m
- Forward deck:20,00%, 20,21 ft / 6,16 m, 20,21 ft / 6,16 m
- Aft deck:20,00%, 20,21 ft / 6,16 m, 20,21 ft / 6,16 m
- Quarter deck:30,00%, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
- Average freeboard:18,51 ft / 5,64 m
Ship space, strength and comments:
Space- Hull below water (magazines/engines, low = better): 78,3%
- Above water (accommodation/working, high = better): 145,2%
Waterplane Area: 27~652 Square feet or 2~569 Square metres
Displacement factor (Displacement / loading): 121%
Structure weight / hull surface area: 177 lbs/sq ft or 863 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,31
- Longitudinal: 2,79
- Overall: 1,42
Hull space for machinery, storage, compartmentation is excellent
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