Here's the modified cruiser. Hoo will be pleased to note that its BC is now 0.500, as are all the cruiser designs that I have in the works. Of course, it was necessary for the refit program I have in mind for the Almirante Barroso and Sagitário classes. Btw, that's why I didn't use admiral's names, gral, since they were taken up by another class.
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MIBN Falcão, Empire of Brazil Escort Cruiser laid down 1939
Displacement:
7,468 t light; 7,794 t standard; 8,454 t normal; 8,982 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(543.48 ft / 531.00 ft) x 60.70 ft x (18.36 / 19.22 ft)
(165.65 m / 161.85 m) x 18.50 m x (5.60 / 5.86 m)
Armament:
12 - 5.98" / 152 mm 50.0 cal guns - 120.00lbs / 54.43kg shells, 150 per gun
Breech loading guns in turret on barbette mounts , 1939 Model
4 x Triple mounts on centreline ends, evenly spread
2 raised mounts - superfiring
16 - 1.46" / 37.0 mm 45.0 cal guns - 2.00lbs / 0.91kg shells, 2,000 per gun
Anti-air guns in deck mounts , 1939 Model
8 x Twin mounts on sides, evenly spread
4 raised mounts
16 - 0.54" / 13.7 mm 45.0 cal guns - 0.08lbs / 0.04kg shells, 2,000 per gun
Machine guns in deck mounts , 1939 Model
16 x Single mounts on sides, evenly spread
16 raised mounts
Weight of broadside 1,473 lbs / 1,473 kg
8 - 21.0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.35" / 110 mm 345.15 ft / 105.20 m 8.85 ft / 2.70 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.00" / 102 mm 2.00" / 51 mm 4.00" / 102 mm
- Armour deck: 2.75" / 70 mm, Conning tower: 2.00" / 51 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 66,911 shp / 49,916 Kw = 30.50 kts
Range 10,000nm at 12.00 kts
Bunker at max displacement = 1,188 tons
Complement:
440 - 573
Cost:
£3.838 million / $15.353 million
Distribution of weights at normal displacement:
Armament: 351 tons, 4.2 %
Armour: 2,014 tons, 23.8 %
- Belts: 560 tons, 6.6 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 344 tons, 4.1 %
- Armour Deck: 1,093 tons, 12.9 %
- Conning Tower: 18 tons, 0.2 %
Machinery: 1,810 tons, 21.4 %
Hull, fittings & equipment: 3,471 tons, 41.1 %
Fuel, ammunition & stores: 986 tons, 11.7 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
11,746 lbs / 5,328 Kg = 109.6 x 6.0 " / 152 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 2.4 ft / 0.7 m
Roll period: 16.6 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0.57
Seaboat quality (Average = 1.00): 1.09
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.500 / 0.507
Length to Beam Ratio: 8.75 : 1
'Natural speed' for length: 23.04 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 17.00 %, 26.77 ft / 8.16 m, 19.47 ft / 5.93 m
- Forward deck: 50.00 %, 19.47 ft / 5.93 m, 19.47 ft / 5.93 m
- Aft deck: 16.00 %, 19.47 ft / 5.93 m, 19.47 ft / 5.93 m
- Quarter deck: 17.00 %, 19.47 ft / 5.93 m, 19.47 ft / 5.93 m
- Average freeboard: 19.97 ft / 6.09 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.3 %
- Above water (accommodation/working, high = better): 150.1 %
Waterplane Area: 21,475 Square feet or 1,995 Square metres
Displacement factor (Displacement / loading): 121 %
Structure weight / hull surface area: 103 lbs/sq ft or 504 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.59
- 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
Ships (10):
Falcão
Águia
Açor
Lebreiro
Harpia
Coruja
Noctívago
Busardo
Condor
Abutre
This post has been edited 1 times, last edit by "Fyrwulf" (May 23rd 2007, 11:16pm)