American Capital Ships

[Karle94]

In the mean time, here`s an SS report:

Maine, USA Armored Cruiser laid down 1908

Displacement:
12 502 t light; 13 405 t standard; 14 436 t normal; 15 262 t full load

Dimensions: Length overall / water x beam x draught
543,31 ft / 543,31 ft x 78,74 ft x 26,25 ft (normal load)
165,60 m / 165,60 m x 24,00 m x 8,00 m

Armament:
12 - 10,00" / 254 mm guns (6x2 guns), 500,00lbs / 226,80kg shells, 1908 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
10 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1908 Model
Breech loading guns in casemate mounts
on side, all amidships
6 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1908 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 7 161 lbs / 3 248 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,00" / 127 mm 313,50 ft / 95,55 m 13,00 ft / 3,96 m
Ends: Unarmoured
Main Belt covers 89 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9,00" / 229 mm 2,50" / 64 mm 2,50" / 64 mm

- Armour deck: 3,00" / 76 mm, Conning tower: 9,00" / 229 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 25 714 ihp / 19 183 Kw = 22,00 kts
Range 6 500nm at 10,00 kts
Bunker at max displacement = 1 857 tons (100% coal)

Complement:
658 - 856

Cost:
£1,517 million / $6,067 million

Distribution of weights at normal displacement:
Armament: 895 tons, 6,2 %
Armour: 3 254 tons, 22,5 %
- Belts: 898 tons, 6,2 %
- Torpedo bulkhead: 0 tons, 0,0 %
- Armament: 727 tons, 5,0 %
- Armour Deck: 1 514 tons, 10,5 %
- Conning Tower: 115 tons, 0,8 %
Machinery: 2 338 tons, 16,2 %
Hull, fittings & equipment: 5 965 tons, 41,3 %
Fuel, ammunition & stores: 1 935 tons, 13,4 %
Miscellaneous weights: 50 tons, 0,3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15 805 lbs / 7 169 Kg = 31,6 x 10,0 " / 254 mm shells or 2,0 torpedoes
Stability (Unstable if below 1.00): 1,15
Metacentric height 4,6 ft / 1,4 m
Roll period: 15,5 seconds
Steadiness - As gun platform (Average = 50 %): 95 %
- Recoil effect (Restricted arc if above 1.00): 0,90
Seaboat quality (Average = 1.00): 1,91

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak, raised quarterdeck
Block coefficient: 0,450
Length to Beam Ratio: 6,90 : 1
'Natural speed' for length: 23,31 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -10,00 degrees
Stern overhang: -4,92 ft / -1,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30,61 ft / 9,33 m
- Forecastle (20 %): 22,41 ft / 6,83 m (21,88 ft / 6,67 m aft of break)
- Mid (50 %): 19,69 ft / 6,00 m (19,14 ft / 5,83 m aft of break)
- Quarterdeck (15 %): 20,23 ft / 6,17 m (19,69 ft / 6,00 m before break)
- Stern: 21,88 ft / 6,67 m
- Average freeboard: 21,33 ft / 6,50 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 100,9 %
- Above water (accommodation/working, high = better): 158,3 %
Waterplane Area: 27 288 Square feet or 2 535 Square metres
Displacement factor (Displacement / loading): 95 %
Structure weight / hull surface area: 142 lbs/sq ft or 694 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,23
- 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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Edit: The guns have now been moved to more aesthetical positions.

[eltf177]

I like her with two reservations:

1) Hull strain should be fixed
2) I would personally lose the TDS in order to get the belt to fully protect magazines and engineering spaces

Other than that I like, and she's a beauty to boot!

[bezobrazov]

Very, very nice...ironically (and funny) enough - but this is one I'll leave entirely up to you, Karle, is the fact that i notice that you can actually work in a sixth 6" gun amidships! Would not be straining the hull, nor would look bad...oh, and the forward conningtower should not be a freestanding structure. As it is now, it's completely worthless. You need to work it into the forward superstructure, otherwise - one hit or even blast from own guns - and conn's gone!

[KHT]

Karle94: Unless it's a destroyer or similar vessel, the HS should be 1.00. It's currently 0.86, not good, she'll be breaking even in moderate seas.

[Karle94]

By removing the torpedo bulkhead, reducing the armor belt from 14,5 ft to 13 ft height, and taking off 1 inch of deck armor, it is now at 1.0. Adding another pair of six inchers will bring it down tp 0.98, so I am keeping her as she is now. I have extended the conningtower all the way down to the deck.

I am adding the 1910 Maine here so you don`t have to fo to previously posts to find her.

USS Maine in 1010:


Here is the 1915 version of the USS Augusta (ex-Maine) in 1915:

[Karle94]

I have decided to do a SS report on the Massasuchetts.

Massachusetts Class, USA Battleship laid down 1912

Displacement:
25 975 t light; 28 090 t standard; 29 096 t normal; 29 900 t full load

Dimensions: Length overall / water x beam x draught
651,50 ft / 651,50 ft x 98,00 ft x 29,00 ft (normal load)
198,58 m / 198,58 m x 29,87 m x 8,84 m

Armament:
8 - 16,00" / 406 mm guns (4x2 guns), 2 048,00lbs / 928,96kg shells, 1912 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1912 Model
Breech loading guns in casemate mounts
on side, all amidships
Weight of broadside 18 112 lbs / 8 215 kg
Shells per gun, main battery: 150
4 - 21,0" / 533,4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13,0" / 330 mm 444,00 ft / 135,33 m 14,00 ft / 4,27 m
Ends: Unarmoured
Main Belt covers 105 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16,0" / 406 mm 12,0" / 305 mm 6,00" / 152 mm

- Armour deck: 3,00" / 76 mm, Conning tower: 14,00" / 356 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 54 360 shp / 40 553 Kw = 24,00 kts
Range 6 000nm at 10,00 kts
Bunker at max displacement = 1 810 tons

Complement:
1 113 - 1 448

Cost:
£3,114 million / $12,457 million

Distribution of weights at normal displacement:
Armament: 2 264 tons, 7,8 %
Armour: 8 669 tons, 29,8 %
- Belts: 3 473 tons, 11,9 %
- Torpedo bulkhead: 0 tons, 0,0 %
- Armament: 2 438 tons, 8,4 %
- Armour Deck: 2 473 tons, 8,5 %
- Conning Tower: 285 tons, 1,0 %
Machinery: 2 167 tons, 7,4 %
Hull, fittings & equipment: 12 825 tons, 44,1 %
Fuel, ammunition & stores: 3 121 tons, 10,7 %
Miscellaneous weights: 50 tons, 0,2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
31 748 lbs / 14 401 Kg = 15,5 x 16,0 " / 406 mm shells or 3,2 torpedoes
Stability (Unstable if below 1.00): 1,05
Metacentric height 5,4 ft / 1,6 m
Roll period: 17,7 seconds
Steadiness - As gun platform (Average = 50 %): 69 %
- Recoil effect (Restricted arc if above 1.00): 0,93
Seaboat quality (Average = 1.00): 1,37

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,550
Length to Beam Ratio: 6,65 : 1
'Natural speed' for length: 25,52 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -5,00 degrees
Stern overhang: -15,00 ft / -4,57 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27,50 ft / 8,38 m
- Forecastle (20 %): 26,00 ft / 7,92 m
- Mid (50 %): 23,00 ft / 7,01 m (15,00 ft / 4,57 m aft of break)
- Quarterdeck (15 %): 15,00 ft / 4,57 m
- Stern: 15,00 ft / 4,57 m
- Average freeboard: 20,17 ft / 6,15 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87,0 %
- Above water (accommodation/working, high = better): 147,8 %
Waterplane Area: 44 558 Square feet or 4 140 Square metres
Displacement factor (Displacement / loading): 93 %
Structure weight / hull surface area: 208 lbs/sq ft or 1 016 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,58
- 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

And the 1941 version:

Massachusetts Class, USA Battleship laid down 1912 (Engine 1927)

Displacement:
29 356 t light; 31 535 t standard; 32 512 t normal; 33 294 t full load

Dimensions: Length overall / water x beam x draught
661,41 ft / 659,00 ft x 98,00 ft (Bulges 108,26 ft) x 29,00 ft (normal load)
201,60 m / 200,86 m x 29,87 m (Bulges 33,00 m) x 8,84 m

Armament:
8 - 16,00" / 406 mm guns (4x2 guns), 2 048,00lbs / 928,96kg shells, 1912 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1912 Model
Breech loading guns in casemate mounts
on side, all amidships
12 - 5,00" / 127 mm guns in single mounts, 62,50lbs / 28,35kg shells, 1912 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
12 - 0,50" / 12,7 mm guns in single mounts, 0,06lbs / 0,03kg shells, 1912 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 18 056 lbs / 8 190 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13,0" / 330 mm 444,00 ft / 135,33 m 14,00 ft / 4,27 m
Ends: Unarmoured
Main Belt covers 104 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16,0" / 406 mm 12,0" / 305 mm 6,00" / 152 mm

- Armour deck: 5,00" / 127 mm, Conning tower: 14,00" / 356 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 58 729 ihp / 43 812 Kw = 24,00 kts
Range 6 000nm at 10,00 kts
Bunker at max displacement = 1 759 tons

Complement:
1 209 - 1 573

Cost:
£3,395 million / $13,580 million

Distribution of weights at normal displacement:
Armament: 2 257 tons, 6,9 %
Armour: 10 392 tons, 32,0 %
- Belts: 3 477 tons, 10,7 %
- Torpedo bulkhead: 0 tons, 0,0 %
- Armament: 2 438 tons, 7,5 %
- Armour Deck: 4 169 tons, 12,8 %
- Conning Tower: 307 tons, 0,9 %
Machinery: 3 368 tons, 10,4 %
Hull, fittings & equipment: 13 289 tons, 40,9 %
Fuel, ammunition & stores: 3 156 tons, 9,7 %
Miscellaneous weights: 50 tons, 0,2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
34 888 lbs / 15 825 Kg = 17,0 x 16,0 " / 406 mm shells or 3,5 torpedoes
Stability (Unstable if below 1.00): 1,14
Metacentric height 6,2 ft / 1,9 m
Roll period: 18,2 seconds
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 0,60
Seaboat quality (Average = 1.00): 1,32

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,550
Length to Beam Ratio: 6,09 : 1
'Natural speed' for length: 25,67 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 5,00 degrees
Stern overhang: -15,00 ft / -4,57 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27,50 ft / 8,38 m
- Forecastle (20 %): 26,00 ft / 7,92 m
- Mid (50 %): 23,00 ft / 7,01 m (15,00 ft / 4,57 m aft of break)
- Quarterdeck (15 %): 15,00 ft / 4,57 m
- Stern: 15,00 ft / 4,57 m
- Average freeboard: 20,17 ft / 6,15 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87,6 %
- Above water (accommodation/working, high = better): 137,6 %
Waterplane Area: 45 071 Square feet or 4 187 Square metres
Displacement factor (Displacement / loading): 92 %
Structure weight / hull surface area: 208 lbs/sq ft or 1 014 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,47
- 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

[bezobrazov]

I like them very, very much! Good job!

[Karle94]

The Maine, or the Massachusetts?

[bezobrazov]

Lol, I guess I wrote a little hastily...in this case I meant your Maine/Augusta.

[Karle94]

Augusta in 1918:


Massachussets in Pearl Harbor in late 1941: