Since I don't have any meaningful changes/additions to my entry I might as well post it.
By downgrading the firepower from 9x15" to 9x14" I could add a bit more armor to the belt, conning tower, torpedo defense and deck armor. I could also add more fuel and increase the cruising speed, which interestingly gave me more strength, which went back into more fuel and armor. Considering the relatively thin-ish armor she had, I choose uparmoring rather than push top speed to 30kts.
And before someone comments on some of the wackyness of the fore tower, it's partially based on a Littorio prelim.
Cristoforo Colombo, Italy Battleship laid down 1932
Displacement:
33 437 t light; 35 000 t standard; 36 841 t normal; 38 314 t full load
Dimensions: Length overall / water x beam x draught
794,95 ft / 772,00 ft x 100,07 ft x 31,50 ft (normal load)
242,30 m / 235,31 m x 30,50 m x 9,60 m
Armament:
9 - 15,00" / 381 mm guns (3x3 guns), 1 687,50lbs / 765,44kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount - superfiring
12 - 5,31" / 135 mm guns (4x3 guns), 75,07lbs / 34,05kg shells, 1932 Model
Breech loading guns in deck mounts with hoists
on side ends, evenly spread
8 - 3,54" / 90,0 mm guns in single mounts, 22,24lbs / 10,09kg shells, 1932 Model
Breech loading guns in deck mounts with hoists
on side, evenly spread
16 - 1,46" / 37,0 mm guns (4x4 guns), 1,55lbs / 0,70kg shells, 1932 Model
Breech loading guns in deck mounts
on side, evenly spread
18 - 0,52" / 13,2 mm guns (9x2 guns), 0,07lbs / 0,03kg shells, 1932 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 16 292 lbs / 7 390 kg
Shells per gun, main battery: 90
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12,0" / 305 mm 403,00 ft / 122,83 m 15,00 ft / 4,57 m
Ends: Unarmoured
Main Belt covers 80 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
3,00" / 76 mm 403,00 ft / 122,83 m 25,00 ft / 7,62 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12,0" / 305 mm 6,00" / 152 mm 12,0" / 305 mm
2nd: 4,70" / 119 mm 3,00" / 76 mm -
3rd: 3,00" / 76 mm 2,00" / 51 mm -
- Armour deck: 5,00" / 127 mm, Conning tower: 10,00" / 254 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 105 428 shp / 78 650 Kw = 28,00 kts
Range 5 500nm at 16,00 kts
Bunker at max displacement = 3 314 tons
Complement:
1 329 - 1 728
Cost:
£15,076 million / $60,302 million
Distribution of weights at normal displacement:
Armament: 2 037 tons, 5,5 %
Armour: 12 498 tons, 33,9 %
- Belts: 3 240 tons, 8,8 %
- Torpedo bulkhead: 1 118 tons, 3,0 %
- Armament: 3 007 tons, 8,2 %
- Armour Deck: 4 894 tons, 13,3 %
- Conning Tower: 239 tons, 0,6 %
Machinery: 3 112 tons, 8,4 %
Hull, fittings & equipment: 15 790 tons, 42,9 %
Fuel, ammunition & stores: 3 404 tons, 9,2 %
Miscellaneous weights: 0 tons, 0,0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
56 213 lbs / 25 498 Kg = 33,3 x 15,0 " / 381 mm shells or 8,6 torpedoes
Stability (Unstable if below 1.00): 1,06
Metacentric height 5,6 ft / 1,7 m
Roll period: 17,7 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0,98
Seaboat quality (Average = 1.00): 1,49
Hull form characteristics:
Hull has raised forecastle, low quarterdeck
Block coefficient: 0,530
Length to Beam Ratio: 7,71 : 1
'Natural speed' for length: 27,78 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30,00 degrees
Stern overhang: 6,50 ft / 1,98 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28,50 ft / 8,69 m
- Forecastle (20 %): 27,00 ft / 8,23 m (26,50 ft / 8,08 m aft of break)
- Mid (50 %): 25,50 ft / 7,77 m
- Quarterdeck (15 %): 17,00 ft / 5,18 m (25,50 ft / 7,77 m before break)
- Stern: 17,00 ft / 5,18 m
- Average freeboard: 24,80 ft / 7,56 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86,4 %
- Above water (accommodation/working, high = better): 195,1 %
Waterplane Area: 52 909 Square feet or 4 915 Square metres
Displacement factor (Displacement / loading): 105 %
Structure weight / hull surface area: 204 lbs/sq ft or 996 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,94
- Longitudinal: 1,61
- 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
Good seaboat, rides out heavy weather easily