Shipbucket

Cleveland, United States Light Cruiser laid down 1938 (Engine 1939)

Displacement:
9,260 t light; 10,184 t standard; 12,000 t normal; 13,453 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(635.72 ft / 606.96 ft) x 65.62 ft x (24.61 / 26.64 ft)
(193.77 m / 185.00 m) x 20.00 m x (7.50 / 8.12 m)

Armament:
12 - 6.00" / 152 mm 55.0 cal guns - 120.00lbs / 54.43kg shells, 300 per gun
Breech loading guns in deck and hoist mounts, 1938 Model
2 x 3-gun mounts on centreline, forward evenly spread
1 raised mount
2 x 3-gun mounts on centreline, aft evenly spread
1 raised mount aft
24 - 5.00" / 127 mm 38.0 cal guns - 60.01lbs / 27.22kg shells, 400 per gun
Dual purpose guns in deck and hoist mounts, 1938 Model
10 x 2-gun mounts on sides, evenly spread
4 raised mounts
2 x 2-gun mounts on centreline, evenly spread
2 double raised mounts
24 - 1.10" / 28.0 mm 75.0 cal guns - 0.99lbs / 0.45kg shells, 4,000 per gun
Anti-air guns in deck mounts, 1938 Model
4 x Quad mounts on sides, evenly spread
2 raised mounts
4 x Twin mounts on centreline, evenly spread
2 raised mounts
40 - 0.79" / 20.0 mm 75.0 cal guns - 0.40lbs / 0.18kg shells, 8,000 per gun
Anti-air guns in deck mounts, 1938 Model
12 x Twin mounts on sides, evenly spread
6 raised mounts
8 x Twin mounts on centreline, evenly spread
8 double raised mounts
Weight of broadside 2,920 lbs / 1,324 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 394.52 ft / 120.25 m 9.72 ft / 2.96 m
Ends: Unarmoured
Upper: 3.00" / 76 mm 394.52 ft / 120.25 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Strengthened structural bulkheads:
3.00" / 76 mm 394.52 ft / 120.25 m 19.28 ft / 5.88 m
Beam between torpedo bulkheads 65.00 ft / 19.81 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm -
2nd: 1.00" / 25 mm 1.00" / 25 mm -
3rd: 1.00" / 25 mm - -
4th: 1.00" / 25 mm - -

- Box over machinery & magazines:
1.00" / 25 mm
Forecastle: 1.00" / 25 mm Quarter deck: 1.00" / 25 mm

- Conning towers: Forward 2.00" / 51 mm, Aft 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines, plus diesel motors,
Geared drive, 4 shafts, 91,370 shp / 68,162 Kw = 32.00 kts
Range 14,000nm at 15.00 kts
Bunker at max displacement = 3,269 tons

Complement:
573 - 745

Cost:
£5.361 million / $21.445 million

Distribution of weights at normal displacement:
Armament: 813 tons, 6.8 %
- Guns: 813 tons, 6.8 %
Armour: 2,461 tons, 20.5 %
- Belts: 863 tons, 7.2 %
- Torpedo bulkhead: 844 tons, 7.0 %
- Armament: 174 tons, 1.5 %
- Armour Deck: 534 tons, 4.5 %
- Conning Towers: 45 tons, 0.4 %
Machinery: 2,472 tons, 20.6 %
Hull, fittings & equipment: 3,414 tons, 28.4 %
Fuel, ammunition & stores: 2,740 tons, 22.8 %
Miscellaneous weights: 100 tons, 0.8 %
- Above deck: 100 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,534 lbs / 6,593 Kg = 134.6 x 6.0 " / 152 mm shells or 2.4 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 3.5 ft / 1.1 m
Roll period: 14.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.63
Seaboat quality (Average = 1.00): 1.20

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.429 / 0.444
Length to Beam Ratio: 9.25 : 1
'Natural speed' for length: 24.64 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 13.12 ft / 4.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 27.10 ft / 8.26 m, 22.18 ft / 6.76 m
- Forward deck: 30.00 %, 22.18 ft / 6.76 m, 17.26 ft / 5.26 m
- Aft deck: 35.00 %, 17.26 ft / 5.26 m, 17.26 ft / 5.26 m
- Quarter deck: 15.00 %, 17.26 ft / 5.26 m, 17.26 ft / 5.26 m
- Average freeboard: 19.37 ft / 5.91 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.8 %
- Above water (accommodation/working, high = better): 152.7 %
Waterplane Area: 24,983 Square feet or 2,321 Square metres
Displacement factor (Displacement / loading): 118 %
Structure weight / hull surface area: 117 lbs/sq ft or 570 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.64
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

The New Fleet Project had one simple mission, to be properly design and fit the fleet for the wars of tomorrow. The Cleveland class is one of the designs put into production from the New Fleet Project. As the initial light cruiser design of the NFP, it is designed with the latest threats to naval shipping in mind.

The Light Cruisers of the New Fleet Project had the requirement for escort duty, and with the Dutch showing that aircraft can be brought down with enough bullets flying in the air, the United States Navy decided to utilize the new Radar technology to enhance any and all gunnery on new ships.

The primary armament of the Cleveland is the 6"/55cal guns mounted in triple mounts. With a rate of fire of a round every twelve seconds, they can pummel any destroyer or light cruiser currently in operation.

The 5"/38cal dual purpose cannons are the intermediate solution to the dual purpose role problem. Due to the fact that the other variants of the 5" cannon aren't capable enough to be useful, it was decided that until an automatic version was devised, the 38cal variant would be good enough. With a rate of fire of one round every six seconds, these are some of the fastest firing naval rifles in the world.

The 1.1"/75cal anti-aircraft gun is the current model of anti-aircraft autocannon available of the heavier calibers. While the design first showed up in the 1920s, the latest model has none of the problems that where prevailent with the earlier models. The major problem is the fact that many crews believe that the 1.1" guns don't have the necessary hitting power however.

The 20mm autocannon are of Swiss design. Mounted in twin mounts, the 20mm guns have replaced the old standby of the M2 HMG as the last-ditch anti-air weapon of choice. It was discovered that 12.7mm machineguns were useless in the anti-air role. Aircraft have advanced far faster than anticapated and became far stronger as well. The easiest that the USN found to patch this hole in the defenses was to pruchase manufacturing rights for the weapon as an intermediate solution until better weaponry can be found.
Hope that this is way better than the last.

MUCH better. I would still lose the TDS for more armor (especially on the deck) and I still think you've got too many Secondary and Light AA Battery guns but otherwise this is very much improved...

Just asking here, is the hullform alright? I've been toying with it but I don't know if it's good or not.

I'll work on other designs later but I hope things go well.

Enter ship name, Enter country Enter ship type laid down 1944

Displacement:
18,824 t light; 21,353 t standard; 23,400 t normal; 25,037 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(785.76 ft / 721.78 ft) x 75.46 ft x (26.25 / 27.66 ft)
(239.50 m / 220.00 m) x 23.00 m x (8.00 / 8.43 m)

Armament:
10 - 8.00" / 203 mm 65.0 cal guns - 350.01lbs / 158.76kg shells, 300 per gun
Auto rapid fire guns in turret on barbette mounts, 1944 Model
4 x 2-gun mounts on centreline, evenly spread
2 raised mounts
2 x Single mounts on sides amidships
20 - 5.00" / 127 mm 55.0 cal guns - 89.99lbs / 40.82kg shells, 500 per gun
Auto rapid fire guns in deck and hoist mounts, 1944 Model
8 x 2-gun mounts on sides, evenly spread
4 raised mounts
2 x 2-gun mounts on centreline, evenly spread
2 double raised mounts
24 - 1.97" / 50.0 mm 75.0 cal guns - 5.00lbs / 2.27kg shells, 4,000 per gun
Auto rapid fire guns in deck and hoist mounts, 1944 Model
8 x Twin mounts on sides, evenly spread
4 raised mounts
4 x Twin mounts on sides, evenly spread
4 double raised mounts
80 - 1.38" / 35.0 mm 90.0 cal guns - 2.00lbs / 0.91kg shells, 8,000 per gun
Auto rapid fire guns in deck and hoist mounts, 1944 Model
12 x 2 row quad mounts on sides, evenly spread
8 raised mounts
8 x 2 row quad mounts on centreline, evenly spread
8 double raised mounts
Weight of broadside 5,580 lbs / 2,531 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.00" / 127 mm 469.16 ft / 143.00 m 10.42 ft / 3.18 m
Ends: 2.50" / 64 mm 252.60 ft / 76.99 m 10.42 ft / 3.18 m
Upper: 5.00" / 127 mm 469.16 ft / 143.00 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Strengthened structural bulkheads:
3.00" / 76 mm 469.16 ft / 143.00 m 24.77 ft / 7.55 m
Beam between torpedo bulkheads 65.00 ft / 19.81 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.00" / 127 mm 5.00" / 127 mm 3.00" / 76 mm
2nd: 3.00" / 76 mm 2.00" / 51 mm 2.00" / 51 mm
3rd: 3.00" / 76 mm 2.00" / 51 mm -
4th: 3.00" / 76 mm 2.00" / 51 mm -

- Box over machinery & magazines:
5.00" / 127 mm
Forecastle: 3.00" / 76 mm Quarter deck: 3.00" / 76 mm

- Conning towers: Forward 2.00" / 51 mm, Aft 2.00" / 51 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 120,089 shp / 89,586 Kw = 32.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 3,684 tons

Complement:
945 - 1,229

Cost:
£11.318 million / $45.272 million

Distribution of weights at normal displacement:
Armament: 2,332 tons, 10.0 %
- Guns: 2,332 tons, 10.0 %
Armour: 6,681 tons, 28.5 %
- Belts: 2,040 tons, 8.7 %
- Torpedo bulkhead: 1,290 tons, 5.5 %
- Armament: 1,341 tons, 5.7 %
- Armour Deck: 1,939 tons, 8.3 %
- Conning Towers: 71 tons, 0.3 %
Machinery: 3,067 tons, 13.1 %
Hull, fittings & equipment: 6,144 tons, 26.3 %
Fuel, ammunition & stores: 4,576 tons, 19.6 %
Miscellaneous weights: 600 tons, 2.6 %
- Above deck: 600 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
38,062 lbs / 17,265 Kg = 148.7 x 8.0 " / 203 mm shells or 5.4 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 3.7 ft / 1.1 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.87
Seaboat quality (Average = 1.00): 1.38

Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and large transom stern
Block coefficient (normal/deep): 0.573 / 0.582
Length to Beam Ratio: 9.57 : 1
'Natural speed' for length: 30.52 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 45.00 degrees
Stern overhang: 32.81 ft / 10.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 31.17 ft / 9.50 m, 27.07 ft / 8.25 m
- Forward deck: 30.00 %, 27.07 ft / 8.25 m, 27.07 ft / 8.25 m
- Aft deck: 35.00 %, 27.07 ft / 8.25 m, 27.07 ft / 8.25 m
- Quarter deck: 15.00 %, 27.07 ft / 8.25 m, 27.07 ft / 8.25 m
- Average freeboard: 27.40 ft / 8.35 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.8 %
- Above water (accommodation/working, high = better): 220.7 %
Waterplane Area: 40,453 Square feet or 3,758 Square metres
Displacement factor (Displacement / loading): 123 %
Structure weight / hull surface area: 138 lbs/sq ft or 674 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.61
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily

Been experimenting a bit, and so far I want to make things interesting but not stupid. Does this design make any sense?

Well, here is the 'OP Class' (final name reserved until christening) I played with, based on the O-class hypothetical battlecruiser...

OP class, Reichsmarine Heavy Battlecruiser laid down 1940

Displacement:
33,682 t light; 35,515 t standard; 40,000 t normal; 43,588 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(963.01 ft / 918.64 ft) x 98.43 ft x (29.86 / 31.86 ft)
(293.53 m / 280.00 m) x 30.00 m x (9.10 / 9.71 m)

Armament:
6 - 15.00" / 381 mm 55.0 cal guns - 1,850.00lbs / 839.15kg shells, 100 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
3 x 2-gun mounts on centreline ends, majority forward
1 raised mount - superfiring
12 - 5.91" / 150 mm 55.0 cal guns - 120.00lbs / 54.43kg shells, 300 per gun
Dual purpose guns in deck and hoist mounts, 1940 Model
6 x 2-gun mounts on sides, evenly spread
2 raised mounts
16 - 4.13" / 105 mm 40.0 cal guns - 35.00lbs / 15.88kg shells, 500 per gun
Anti-air guns in deck and hoist mounts, 1940 Model
6 x Twin mounts on sides, evenly spread
2 raised mounts
2 x Twin mounts on centreline, evenly spread
2 double raised mounts
32 - 1.46" / 37.0 mm 50.0 cal guns - 2.01lbs / 0.91kg shells, 600 per gun
Auto rapid fire guns in deck and hoist mounts, 1940 Model
16 x Twin mounts on sides, evenly spread
8 raised mounts
Weight of broadside 13,164 lbs / 5,971 kg
Main Torpedoes
6 - 21.0" / 533 mm, 22.97 ft / 7.00 m torpedoes - 1.558 t each, 9.350 t total
In 2 sets of deck mounted side rotating tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.00" / 178 mm 597.11 ft / 182.00 m 12.30 ft / 3.75 m
Ends: 5.00" / 127 mm 321.50 ft / 97.99 m 12.30 ft / 3.75 m
Upper: 7.00" / 178 mm 597.11 ft / 182.00 m 8.00 ft / 2.44 m
Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Strengthened structural bulkheads:
3.00" / 76 mm 597.11 ft / 182.00 m 25.03 ft / 7.63 m
Beam between torpedo bulkheads 90.00 ft / 27.43 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 6.00" / 152 mm 3.00" / 76 mm
2nd: 5.00" / 127 mm 3.00" / 76 mm -
3rd: 2.00" / 51 mm 1.00" / 25 mm -
4th: 2.00" / 51 mm 1.00" / 25 mm -

- Box over machinery & magazines:
4.00" / 102 mm
Forecastle: 3.00" / 76 mm Quarter deck: 3.00" / 76 mm

- Conning towers: Forward 3.00" / 76 mm, Aft 3.00" / 76 mm

Machinery:
Oil fired boilers, steam turbines, plus diesel motors,
Geared drive, 4 shafts, 227,306 shp / 169,570 Kw = 35.00 kts
Range 14,000nm at 16.00 kts
Bunker at max displacement = 8,072 tons

Complement:
1,413 - 1,838

Cost:
£20.900 million / $83.599 million

Distribution of weights at normal displacement:
Armament: 3,320 tons, 8.3 %
- Guns: 3,301 tons, 8.3 %
- Weapons: 19 tons, 0.0 %
Armour: 10,633 tons, 26.6 %
- Belts: 4,250 tons, 10.6 %
- Torpedo bulkhead: 1,659 tons, 4.1 %
- Armament: 1,205 tons, 3.0 %
- Armour Deck: 3,368 tons, 8.4 %
- Conning Towers: 151 tons, 0.4 %
Machinery: 6,078 tons, 15.2 %
Hull, fittings & equipment: 13,551 tons, 33.9 %
Fuel, ammunition & stores: 6,318 tons, 15.8 %
Miscellaneous weights: 100 tons, 0.3 %
- Above deck: 100 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
50,604 lbs / 22,954 Kg = 30.0 x 15.0 " / 381 mm shells or 6.0 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 5.7 ft / 1.7 m
Roll period: 17.3 seconds
Steadiness - As gun platform (Average = 50 %): 69 %
- Recoil effect (Restricted arc if above 1.00): 0.69
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and small transom stern
Block coefficient (normal/deep): 0.519 / 0.530
Length to Beam Ratio: 9.33 : 1
'Natural speed' for length: 32.58 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 40.00 degrees
Stern overhang: 16.40 ft / 5.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 33.33 ft / 10.16 m, 27.26 ft / 8.31 m
- Forward deck: 30.00 %, 27.26 ft / 8.31 m, 21.23 ft / 6.47 m
- Aft deck: 35.00 %, 21.23 ft / 6.47 m, 21.23 ft / 6.47 m
- Quarter deck: 15.00 %, 21.23 ft / 6.47 m, 21.23 ft / 6.47 m
- Average freeboard: 23.83 ft / 7.26 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.6 %
- Above water (accommodation/working, high = better): 189.8 %
Waterplane Area: 62,766 Square feet or 5,831 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 188 lbs/sq ft or 917 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.02
- Longitudinal: 1.00
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room
Fiddiled with a few things but is this good enough?

Both are nice. As for specifics:

Experimental - The single beam 8-inch guns make no sense, drop them. Deck space looks like it's going to be overcrowded and armor is on the thin side.

German BC - Not bad but suffers from the usual German separate 5.9-inch surface/4.13-inch AA problem. Again armor is on the thin side. And I would add more miscellaneous weight.

Alright then, that gives me something to further refine the ships.

Also, I literally lifted the OP class based upon the O-class BC (and wanted to keep it 'in character' for the Germans, which I'll admit had a LOT of problems)...

If you want to keep in character with the OP class then,

- Swap DP 150mm for SP/LA guns

- Swap 15"twins for 11"Triples why have 15" when you can fight capital ships with 7"belt and 4" deck anyway ? make it a CA killer

- 3.7 cm SK C/30 or 3.7 cm Flak 18/36/37/43 ? Not that it couldn't (should) have been done.

- Beam between torpedo bulkheads 90.00 ft when you are 98.43 ft wide means 4ft TDS why bother ? its not going to stop a realistic torpedo ?

- Box over machinery & magazines: is for old protected Cruisers not modern fast ships in 1930s you want AON deck and belt.

- Laid down in 1940 means its never going to leave the slip considering the need for U boats and Panzers unless very different world would 1934 not be better ?

- 35 Kts is very fast 32 would do and save tons of weight ?

- 'a straight bulbous bow and small transom stern' is maybe cheating a bit ?

- 100t doesn't get you much for misc weight ? you might want a bit more for float planes etc.

Hm, good points.

It's a project I've been working on if the 'muse' hits me. Also, what is AON? I don't know that acronym...

All or Nothing. A pre-WWI US Navy design feature - either put on thick enough armor to keep out any shell or don't bother with any armor at all. Thin armor just takes up weight without offering any real protection...