本舰作为一战后法国拉动外需，促进经济增长而进行的对智利援助计划的一部分而存在。为了纪念英勇的普拉特舰长以及十九世纪末法国为智利建造的同名铁甲舰，本舰由白朗古 恩卡拉达号改名为普拉特舰长号。
先上数据：
普拉特舰长级, 法国 法制智利重巡洋舰 laid down 1927 Displacement:
11,222 t light; 11,763 t standard; 12,459 t normal; 13,016 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(676.31 ft / 656.17 ft) x 65.62 ft x (22.97 / 23.65 ft)
(206.14 m / 200.00 m) x 20.00 m
x (7.00 / 7.21 m)
Armament:
9 - 8.27" / 210 mm 55.0 cal guns - 305.01lbs / 138.35kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1926 Model
3 x 3-gun mounts on centreline ends, majority forward
1 raised mount - superfiring
8 - 5.00" / 127 mm 50.0 cal guns - 66.16lbs / 30.01kg shells, 150 per gun
Anti-air guns in deck mounts, 1926 Model
2 x 2 row twin mounts on sides, forward deck aft
2 x 2 row twin mounts on centreline, evenly spread
2 raised mounts
36 - 1.57" / 40.0 mm 60.0 cal guns - 2.14lbs / 0.97kg shells, 450 per gun
Anti-air guns in deck mounts, 1926 Model
12 x 3-gun mounts on sides, evenly spread
Weight of broadside 3,351 lbs / 1,520 kg
Main Torpedoes
10 - 25.6" / 650 mm, 26.25 ft / 8.00 m torpedoes - 2.545 t each, 25.452 t total
In 5 sets of deck mounted centre rotating tubes
Armour:
- Belts:
Width (max)
Length (avg)
Height (avg)
Main:
4.72" / 120 mm
459.32 ft / 140.00 m
16.40 ft / 5.00 m
Ends:
0.79" / 20 mm
196.85 ft / 60.00 m
9.84 ft / 3.00 m
Upper:
1.97" / 50 mm
131.23 ft / 40.00 m
16.40 ft / 5.00 m
Main Belt covers 108% of normal length
Main belt does not fully cover magazines and engineering spaces
Main Belt inclined 20.00 degrees (positive = in)
- Torpedo Bulkhead - Strengthened structural bulkheads:
1.97" / 50 mm
459.32 ft / 140.00 m
19.69 ft / 6.00 m
Beam between torpedo bulkheads 39.37 ft / 12.00 m
- Hull void:
0.00" / 0 mm
0.00 ft / 0.00 m
0.00 ft / 0.00 m
- Gun armour:
Face (max)
Other gunhouse (avg)
Barbette/hoist (max)
Main:
7.09" / 180 mm
2.76" / 70 mm
5.12" / 130 mm
2nd:
0.79" / 20 mm
0.79" / 20 mm
0.79" / 20 mm
3rd:
0.79" / 20 mm
-
-
- Armoured deck - multiple decks:
For and Aft decks: 2.76" / 70 mm
Forecastle: 0.98" / 25 mm
Quarter deck: 2.76" / 70 mm
- Conning towers: Forward 7.09" / 180 mm, Aft 2.76" / 70 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 70,173 shp / 52,349 Kw = 31.00 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 1,253 tons
Complement:
589 - 766
Cost:
?7.636 million / $30.545 million
Distribution of weights at normal displacement:
Armament: 1,121 tons, 9.0%
- Guns: 1,071 tons, 8.6%
- Weapons: 51 tons, 0.4%
Armour: 4,251 tons, 34.1%
- Belts: 1,728 tons, 13.9%
- Torpedo bulkhead: 659 tons, 5.3%
- Armament: 456 tons, 3.7%
- Armour Deck: 1,295 tons, 10.4%
- Conning Towers: 114 tons, 0.9%
Machinery: 1,679 tons, 13.5%
Hull, fittings & equipment: 3,990 tons, 32.0%
Fuel, ammunition & stores: 1,237 tons, 9.9%
Miscellaneous weights: 180 tons, 1.4%
- Hull below water: 30 tons
- Hull void weights: 30 tons
- Hull above water: 30 tons
- On freeboard deck: 60 tons
- Above deck: 30 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,187 lbs / 8,250 Kg = 64.4 x 8.3 " / 210 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 2.7 ft / 0.8 m
Roll period: 16.9 seconds
Steadiness
- As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.67
Seaboat quality
(Average = 1.00): 1.24
Hull form characteristics:
Hull has raised forecastle,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.441 / 0.447
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 29.45 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end,
Aft end
- Forecastle:
30.00%,
29.20 ft / 8.90 m,
24.93 ft / 7.60 m
- Forward deck:
25.00%,
16.40 ft / 5.00 m,
16.40 ft / 5.00 m
- Aft deck:
25.00%,
16.40 ft / 5.00 m,
16.40 ft / 5.00 m
- Quarter deck:
20.00%,
16.40 ft / 5.00 m,
16.40 ft / 5.00 m
- Average freeboard:
19.48 ft / 5.94 m
Ship space, strength and comments:
Space
- Hull below water (magazines/engines, low = better): 118.1%
- Above water (accommodation/working, high = better): 108.4%
Waterplane Area: 28,318 Square feet or 2,631 Square metres
Displacement factor (Displacement / loading): 112%
Structure weight / hull surface area: 121 lbs/sq ft or 589 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.25
- 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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发表于 2011-7-13 23:23
发表于 2011-7-14 09:17
怎么有那么浓郁的意面风味~
