Beaugency, France AC3 laid down 1900
Beaugency-Pontvalain - Gerberoy-Brossinière
Displacement:
12 000 t light; 12 725 t standard; 13 931 t normal; 14 895 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(496.00 ft / 491.00 ft) x 72.18 ft x (22.39 / 23.68 ft)
(151.18 m / 149.66 m) x 22.00 m x (6.83 / 7.22 m)
Armament:
4 - 10.77" / 274 mm 40.0 cal guns - 598.64lbs / 271.54kg shells, 100 per gun
Breech loading guns in turret on barbette mounts, 1900 Model
2 x Twin mounts on centreline, evenly spread
12 - 7.65" / 194 mm 45.0 cal guns - 225.75lbs / 102.40kg shells, 180 per gun
Breech loading guns in casemate mounts, 1900 Model
12 x Single mounts on sides, evenly spread
4 raised mounts
8 - 3.95" / 100 mm 45.0 cal guns - 31.13lbs / 14.12kg shells, 250 per gun
Quick firing guns in deck mounts, 1900 Model
8 x Single mounts on sides, evenly spread
8 raised mounts
4 - 2.56" / 65.0 mm 46.5 cal guns - 8.69lbs / 3.94kg shells, 400 per gun
Quick firing guns in deck mounts, 1900 Model
4 x Single mounts on side ends, evenly spread
4 raised mounts
4 - 0.30" / 7.6 mm 76.0 cal guns - 0.02lbs / 0.01kg shells, 1 000 per gun
Quick firing guns in deck mounts, 1900 Model
4 x Single mounts on side ends, evenly spread
4 raised mounts
Weight of broadside 5 387 lbs / 2 444 kg
Main Torpedoes
2 - 17.7" / 450 mm, 17.40 ft / 5.30 m torpedoes - 0.611 t each, 1.222 t total
submerged bow & stern tubes
2nd Torpedoes
2 - 17.7" / 450 mm, 17.40 ft / 5.30 m torpedoes - 0.611 t each, 1.222 t total
submerged side tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.87" / 200 mm 367.47 ft / 112.00 m 10.18 ft / 3.10 m
Ends: 3.95" / 100 mm 98.42 ft / 30.00 m 7.87 ft / 2.40 m
25.11 ft / 7.65 m Unarmoured ends
Upper: 3.95" / 100 mm 367.47 ft / 112.00 m 7.87 ft / 2.40 m
Main Belt covers 115 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.87" / 200 mm 3.95" / 100 mm 7.87" / 200 mm
2nd: 1.77" / 45 mm 0.80" / 20 mm 1.97" / 50 mm
3rd: 0.40" / 10 mm - -
4th: 0.40" / 10 mm - -
5th: 0.40" / 10 mm - -
- Armoured deck - multiple decks:
For and Aft decks: 1.97" / 50 mm
Forecastle: 0.99" / 25 mm Quarter deck: 0.99" / 25 mm
- Conning towers: Forward 7.87" / 200 mm, Aft 7.10" / 180 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 3 shafts, 24 600 ihp / 18 351 Kw = 21.36 kts
Range 7 000nm at 10.00 kts
Bunker at max displacement = 2 170 tons (100% coal)
Complement:
640 - 833
Cost:
£1.298 million / $5.193 million
Distribution of weights at normal displacement:
Armament: 841 tons, 6.0 %
- Guns: 836 tons, 6.0 %
- Weapons: 5 tons, 0.0 %
Armour: 3 338 tons, 24.0 %
- Belts: 1 829 tons, 13.1 %
- Armament: 468 tons, 3.4 %
- Armour Deck: 855 tons, 6.1 %
- Conning Towers: 187 tons, 1.3 %
Machinery: 3 844 tons, 27.6 %
Hull, fittings & equipment: 3 827 tons, 27.5 %
Fuel, ammunition & stores: 1 930 tons, 13.9 %
Miscellaneous weights: 150 tons, 1.1 %
- Hull below water: 8 tons
- On freeboard deck: 142 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
11 332 lbs / 5 140 Kg = 18.1 x 10.8 " / 274 mm shells or 3.2 torpedoes
Stability (Unstable if below 1.00): 1.43
Metacentric height 5.7 ft / 1.7 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0.38
Seaboat quality (Average = 1.00): 1.36
Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.614 / 0.621
Length to Beam Ratio: 6.80 : 1
'Natural speed' for length: 22.16 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): -5.00 degrees
Stern overhang: 1.00 ft / 0.30 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 17.40 ft / 5.30 m, 15.10 ft / 4.60 m
- Forward deck: 30.00 %, 15.10 ft / 4.60 m, 14.12 ft / 4.30 m
- Aft deck: 30.00 %, 14.12 ft / 4.30 m, 14.12 ft / 4.30 m
- Quarter deck: 20.00 %, 14.12 ft / 4.30 m, 14.12 ft / 4.30 m
- Average freeboard: 14.65 ft / 4.46 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 114.1 %
- Above water (accommodation/working, high = better): 112.3 %
Waterplane Area: 26 271 Square feet or 2 441 Square metres
Displacement factor (Displacement / loading): 97 %
Structure weight / hull surface area: 118 lbs/sq ft or 574 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.32
- Overall: 1.00
Cramped machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
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