WesWorld

Something that has been in the works for a long time now, some of you might remember it. A light battleship designed to operate in the Caribbean. I have a full range of designs, with armor from 7" to 12" and speed from 27kts to 32kts. Here are the two latest versions. I am currently leaning towards the second as I feel it is the most balanced one for the money. Thoughts?

I am also considering a 17" gunned ~35k ton BB for the Pacific fleet, and would like some input as to which ship I should build first.



Chapultepec, Mexico Battleship laid down 1938

Displacement:
15,000 t light; 15,897 t standard; 17,554 t normal; 18,881 t full load

Dimensions: Length overall / water x beam x draught
592.00 ft / 592.00 ft x 74.00 ft x 27.50 ft (normal load)
180.44 m / 180.44 m x 22.56 m x 8.38 m

Armament:
6 - 12.00" / 305 mm guns (2x3 guns), 864.00lbs / 391.90kg shells, 1938 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
6 - 8.00" / 203 mm guns (2x3 guns), 256.00lbs / 116.12kg shells, 1938 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts
16 - 5.00" / 127 mm guns (8x2 guns), 62.50lbs / 28.35kg shells, 1938 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
16 - 1.85" / 47.0 mm guns (8x2 guns), 3.17lbs / 1.44kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 7,771 lbs / 3,525 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.0" / 254 mm 400.00 ft / 121.92 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 104 % of normal length

- Torpedo Bulkhead:
0.50" / 13 mm 400.00 ft / 121.92 m 20.00 ft / 6.10 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 5.00" / 127 mm 10.0" / 254 mm
2nd: 5.00" / 127 mm 3.00" / 76 mm 5.00" / 127 mm
3rd: 1.00" / 25 mm - -

- Armour deck: 3.50" / 89 mm, Conning tower: 10.00" / 254 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62,521 shp / 46,641 Kw = 27.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 2,984 tons

Complement:
762 - 991

Cost:
£8.909 million / $35.635 million

Distribution of weights at normal displacement:
Armament: 971 tons, 5.5 %
Armour: 5,139 tons, 29.3 %
- Belts: 1,688 tons, 9.6 %
- Torpedo bulkhead: 148 tons, 0.8 %
- Armament: 1,250 tons, 7.1 %
- Armour Deck: 1,907 tons, 10.9 %
- Conning Tower: 146 tons, 0.8 %
Machinery: 1,712 tons, 9.8 %
Hull, fittings & equipment: 7,108 tons, 40.5 %
Fuel, ammunition & stores: 2,555 tons, 14.6 %
Miscellaneous weights: 70 tons, 0.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
22,327 lbs / 10,127 Kg = 25.8 x 12.0 " / 305 mm shells or 3.4 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 3.6 ft / 1.1 m
Roll period: 16.4 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.83
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.510
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 24.33 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 48
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (25 %): 20.00 ft / 6.10 m
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (20 %): 10.00 ft / 3.05 m (17.00 ft / 5.18 m before break)
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 17.23 ft / 5.25 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102.3 %
- Above water (accommodation/working, high = better): 130.2 %
Waterplane Area: 29,456 Square feet or 2,737 Square metres
Displacement factor (Displacement / loading): 107 %
Structure weight / hull surface area: 159 lbs/sq ft or 778 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.52
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent



***



Chapultepec, Mexico Battleship laid down 1938

Displacement:
17,500 t light; 18,452 t standard; 20,276 t normal; 21,735 t full load

Dimensions: Length overall / water x beam x draught
700.00 ft / 700.00 ft x 74.00 ft x 27.40 ft (normal load)
213.36 m / 213.36 m x 22.56 m x 8.35 m

Armament:
6 - 12.00" / 305 mm guns (2x3 guns), 864.00lbs / 391.90kg shells, 1938 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
6 - 8.00" / 203 mm guns (2x3 guns), 256.00lbs / 116.12kg shells, 1938 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts
16 - 5.00" / 127 mm guns (8x2 guns), 62.50lbs / 28.35kg shells, 1938 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
16 - 1.85" / 47.0 mm guns (8x2 guns), 3.17lbs / 1.44kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 7,771 lbs / 3,525 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10.0" / 254 mm 470.00 ft / 143.26 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 103 % of normal length

- Torpedo Bulkhead:
0.50" / 13 mm 470.00 ft / 143.26 m 20.00 ft / 6.10 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10.0" / 254 mm 5.00" / 127 mm 10.0" / 254 mm
2nd: 5.00" / 127 mm 3.00" / 76 mm 5.00" / 127 mm
3rd: 1.00" / 25 mm - -

- Armour deck: 3.50" / 89 mm, Conning tower: 10.00" / 254 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 84,066 shp / 62,713 Kw = 30.00 kts
Range 10,400nm at 15.00 kts
Bunker at max displacement = 3,283 tons

Complement:
849 - 1,104

Cost:
£9.868 million / $39.470 million

Distribution of weights at normal displacement:
Armament: 971 tons, 4.8 %
Armour: 5,864 tons, 28.9 %
- Belts: 1,955 tons, 9.6 %
- Torpedo bulkhead: 174 tons, 0.9 %
- Armament: 1,250 tons, 6.2 %
- Armour Deck: 2,324 tons, 11.5 %
- Conning Tower: 160 tons, 0.8 %
Machinery: 2,302 tons, 11.4 %
Hull, fittings & equipment: 8,294 tons, 40.9 %
Fuel, ammunition & stores: 2,776 tons, 13.7 %
Miscellaneous weights: 70 tons, 0.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
26,913 lbs / 12,207 Kg = 31.1 x 12.0 " / 305 mm shells or 3.7 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 3.7 ft / 1.1 m
Roll period: 16.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.77
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 9.46 : 1
'Natural speed' for length: 30.32 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (25 %): 20.00 ft / 6.10 m
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (20 %): 10.00 ft / 3.05 m (17.00 ft / 5.18 m before break)
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 17.23 ft / 5.25 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101.7 %
- Above water (accommodation/working, high = better): 142.4 %
Waterplane Area: 35,891 Square feet or 3,334 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 157 lbs/sq ft or 765 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.13
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

...interesting, half armoured-cruiser and half coast defense ship. Not quite as fast or powerful as the French battlecruisers, but definitely in the same vein.

I think I agree on the second vessel being better.

Don't think that half an inch of TBH will be useful. I'd go for the second one as well.

Quoted

Originally posted by Rooijen10
Don't think that half an inch of TBH will be useful.

Agree. I put 1" on the Constitution and Libertad, but even that is light IMHO. The USN, I understand, felt three layers of 20mm was sufficient for a battleship TDS... so that's what I aim to put on battleships.

I don't really see it as a true TBH as that would require space which I don't have. I see it more as representing increased subdivisions and strengthen bulkheads. It is more of an issue of containing the damage than blocking it.