With approximatly 70,000 tons of material scheduled to be available, the Marina de Filipinas design office is beginning to consider options for the 1932 capital ship programme.
One of the first designs to be considered is this one:
(this was actually the winner of one of my RFI comps on the Warships 1 design board many moons ago; unfortunatly I can't remember who the designer was.
)
PRS Boracay, Filipino battlecruiser, laid down 1932
Displacement:
33,687 t light; 35,313 t standard; 39,436 t normal; 42,576 t full load
Dimensions: Length overall / water x beam x draught
836.61 ft / 803.81 ft x 98.43 ft x 30.18 ft (normal load)
255.00 m / 245.00 m x 30.00 m x 9.20 m
Armament:
6 - 13.78" / 350 mm guns (3x2 guns), 1,308.20lbs / 593.39kg shells, 1915 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
14 - 5.12" / 130 mm guns (7x2 guns), 68.34lbs / 31.00kg shells, 1932 Model
Dual purpose guns in turrets (on barbettes)
on side, all amidships, 1 raised mount aft - superfiring
24 - 3.94" / 100 mm guns (12x2 guns), 30.51lbs / 13.84kg shells, 1932 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, 8 raised mounts
32 - 1.57" / 40.0 mm guns (8x4 guns), 1.98lbs / 0.90kg shells, 1932 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
32 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1932 Model
Machine guns in deck mounts
on side, evenly spread, 24 raised mounts
Weight of broadside 9.617 lbs / 4.362 kg
Shells per gun, main battery: 150
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.6" / 320 mm 492.13 ft / 150.00 m 11.52 ft / 3.51 m
Ends: Unarmoured
Main Belt covers 94% of normal length
- Torpedo Bulkhead:
1.97" / 50 mm 492.13 ft / 150,00 m 24.44 ft / 7,45 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12.6" / 320 mm 8.86" / 225 mm 12.6" / 320 mm
2nd: 1.97" / 50 mm 1.18" / 30 mm 1.97" / 50 mm
3rd: 1.18" / 30 mm - -
4th: 0.79" / 20 mm - -
5th: 0.79" / 20 mm - -
- Armour deck: 4.72" / 120 mm, Conning tower: 8.86" / 225 mm
Machinery:
Oil fired boilers, steam turbines,
Electric drive, 3 shafts, 204,462 shp / 152,528 Kw = 34.00 kts
Range 15,000nm at 15.00 kts (Bunkerage = 7,421 tons)
Complement:
1,398 - 1,818
Cost:
£13.780 million / $55.122 million
Distribution of weights at normal displacement:
Armament: 1,200 tons, 3.0%
Armour: 11,843 tons, 30.0%
- Belts: 3,074 tons, 7.8%
- Torpedo bulkhead: 876 tons, 2.2%
- Armament: 2,510 tons, 6.4%
- Armour Deck: 5,161 tons, 13.1%
- Conning Tower: 222 tons, 0.6%
Machinery: 6,035 tons, 15.3%
Hull, fittings & equipment: 14,460 tons, 36.7%
Fuel, ammunition & stores: 5,749 tons, 14.6%
Miscellaneous weights: 150 tons, 0.4%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
47,902 lbs / 21,728 Kg = 36.6 x 13.8 " / 350 mm shells or 5.8 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 6.6 ft / 2.0 m
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.04
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.578
Length to Beam Ratio: 8.17 : 1
'Natural speed' for length: 32.59 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 36.52 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.00 ft / 9.45 m
- Forecastle (20%): 25.59 ft / 7.80 m
- Mid (50%): 25.59 ft / 7.80 m
- Quarterdeck (15%): 25.59 ft / 7.80 m
- Stern: 25.59 ft / 7.80 m
- Average freeboard: 26.02 ft / 7.93 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.4%
- Above water (accommodation/working, high = better): 205.9%
Waterplane Area: 59,049 Square feet or 5,486 Square metres
Displacement factor (Displacement / loading): 117%
Structure weight / hull surface area: 172 lbs/sq ft or 842 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.26
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent