An other project of Pocket BC (2T3)
a kind of economical 1934 Almirante Grau.
Protection is identical but the ship is 10955t & 30kts, enough to escort a Carriers force.
PBC, Peru PBC laid down 1945
Displacement:
10 955 t light; 11 521 t standard; 12 304 t normal; 12 930 t full load
Dimensions: Length overall / water x beam x draught
632.78 ft / 623.36 ft x 65.62 ft x 20.60 ft (normal load)
192.87 m / 190.00 m x 20.00 m x 6.28 m
Armament:
6 - 10.00" / 254 mm guns (2x3 guns), 500.00lbs / 226.80kg shells, 1945 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread
12 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1945 Model
Breech loading guns in turrets (on barbettes)
on side, evenly spread
4 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1945 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 3 687 lbs / 1 672 kg
Shells per gun, main battery: 150
8 - 23.6" / 600 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.91" / 150 mm 436.35 ft / 133.00 m 10.17 ft / 3.10 m
Ends: 2.76" / 70 mm 144.36 ft / 44.00 m 8.01 ft / 2.44 m
42.65 ft / 13.00 m Unarmoured ends
Upper: 1.57" / 40 mm 360.89 ft / 110.00 m 0.00 ft / 0.00 m
Main Belt covers 108 % of normal length
- Torpedo Bulkhead:
1.57" / 40 mm 436.35 ft / 133.00 m 17.32 ft / 5.28 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.91" / 150 mm 3.94" / 100 mm 4.92" / 125 mm
2nd: 1.57" / 50 mm 0.79" / 20 mm 1.57" / 50 mm
3rd: 0.79" / 20 mm - -
4th: 0.50" / 13 mm - -
- Armour deck: 2.76" / 70 mm, Conning tower: 3.94" / 100 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 63 275 shp / 47 203 Kw = 30.00 kts
Range 10 000nm at 12.00 kts
Bunker at max displacement = 1 392 tons
Complement:
574 - 747
Cost:
£6.809 million / $27.236 million
Distribution of weights at normal displacement:
Armament: 461 tons, 3.8 %
Armour: 3 572 tons, 29.7 %
- Belts: 1 201 tons, 10.0 %
- Torpedo bulkhead: 440 tons, 3.7 %
- Armament: 441 tons, 3.7 %
- Armour Deck: 1 445 tons, 12.0 %
- Conning Tower: 45 tons, 0.4 %
Machinery: 1 598 tons, 13.3 %
Hull, fittings & equipment: 4 925 tons, 40.9 %
Fuel, ammunition & stores: 1 334 tons, 11.1 %
Miscellaneous weights: 150 tons, 1.2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18 279 lbs / 8 291 Kg = 36.6 x 10.0 " / 254 mm shells or 3.1 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.3 ft / 1.0 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.59
Seaboat quality (Average = 1.00): 1.12
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.50 : 1
'Natural speed' for length: 28.61 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.89 ft / 7.89 m
- Forecastle (19 %): 19.69 ft / 6.00 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (18 %): 16.40 ft / 5.00 m
- Stern: 16.47 ft / 5.02 m
- Average freeboard: 18.01 ft / 5.49 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 107.5 %
- Above water (accommodation/working, high = better): 134.3 %
Waterplane Area: 28 340 Square feet or 2 633 Square metres
Displacement factor (Displacement / loading): 114 %
Structure weight / hull surface area: 119 lbs/sq ft or 579 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.14
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
This post has been edited 2 times, last edit by "Jefgte" (Aug 22nd 2013, 12:46am)