This is my current drawing of the Lexington after her planned mid 1930's reconstruction. I'm still debating the funnel design and may go back to the origninal twin funnels. I'm also thinking of slightly reducing her speed to 31 or 30 kts in favor of increased deck armor. Another option for BC-1933 would be to upgrade the Lexington design, possibly replacing the four triple 14" turrets with three quads. That would come out in the 38-39K ton range.
USS Lexington, United States Battlecruiser laid down 1919 (Engine 1937)
Displacement:
39,456 t light; 41,481 t standard; 44,504 t normal; 46,922 t full load
Dimensions: Length overall / water x beam x draught
869.56 ft / 850.00 ft x 100.00 ft (Bulges 105.00 ft) x 32.50 ft (normal load)
265.04 m / 259.08 m x 30.48 m (Bulges 32.00 m) x 9.91 m
Armament:
12 - 14.00" / 356 mm guns (4x3 guns), 1,575.00lbs / 714.41kg shells, 1919 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 5.00" / 127 mm guns (10x2 guns), 62.50lbs / 28.35kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 6 raised mounts - superfiring
16 - 1.10" / 27.9 mm guns (4x4 guns), 0.67lbs / 0.30kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1937 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 20,161 lbs / 9,145 kg
Shells per gun, main battery: 100
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 624.00 ft / 190.20 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 113 % of normal length
- Torpedo Bulkhead and Bulges:
3.00" / 76 mm 476.00 ft / 145.08 m 29.56 ft / 9.01 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 13.0" / 330 mm 6.00" / 152 mm 12.0" / 305 mm
2nd: 1.25" / 32 mm 1.25" / 32 mm 1.25" / 32 mm
- Armour deck: 5.00" / 127 mm, Conning tower: 12.00" / 305 mm
Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 149,742 shp / 111,708 Kw = 30.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 5,441 tons
Complement:
1,531 - 1,991
Cost:
£8.341 million / $33.366 million
Distribution of weights at normal displacement:
Armament: 2,216 tons, 5.0 %
Armour: 14,515 tons, 32.6 %
- Belts: 3,723 tons, 8.4 %
- Torpedo bulkhead: 1,562 tons, 3.5 %
- Armament: 3,484 tons, 7.8 %
- Armour Deck: 5,421 tons, 12.2 %
- Conning Tower: 325 tons, 0.7 %
Machinery: 4,150 tons, 9.3 %
Hull, fittings & equipment: 18,426 tons, 41.4 %
Fuel, ammunition & stores: 5,048 tons, 11.3 %
Miscellaneous weights: 150 tons, 0.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
63,631 lbs / 28,862 Kg = 46.4 x 14.0 " / 356 mm shells or 10.1 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 5.9 ft / 1.8 m
Roll period: 18.1 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.82
Seaboat quality (Average = 1.00): 1.21
Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.537
Length to Beam Ratio: 8.10 : 1
'Natural speed' for length: 29.15 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 34.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (20 %): 25.00 ft / 7.62 m
- Mid (50 %): 23.00 ft / 7.01 m
- Quarterdeck (18 %): 16.00 ft / 4.88 m (23.00 ft / 7.01 m before break)
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 22.72 ft / 6.92 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.1 %
- Above water (accommodation/working, high = better): 171.3 %
Waterplane Area: 58,603 Square feet or 5,444 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 215 lbs/sq ft or 1,049 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.15
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily