Possible New 3rd Class Cruiser Designs for 1918-9

[TexanCowboy]

I KNOW this is jumping ahead a bit, but:

In 1918, another one of the Thomasville class is slated to be converted into a torpedo boat tender. Opponents of this plan, however, including the Naval Chief of Staff, have objected to that plan, and wish to scrap the ship and turn the resources saved into an modern 3rd class cruiser. The Admiralty asked for plans for a proposed ship to be created, using the still-under development 4.75'' twin mount, using a smaller gun for a ship mearly half the size of the new Gran Columbian cruisers. Another requirment for this ship would be as a station ship, freeing up larger ships to serve with the battlefleet. Likewise, these ships would be specialized for certain enviroments, one for the South China sea, and one for the Antarctic.

CSS Pearland, CSA  Cruiser laid down 1918 (Engine 1916)

Displacement:
   3,500 t light; 3,678 t standard; 4,269 t normal; 4,741 t full load

Dimensions: Length overall / water x beam x draught
   393.59 ft / 382.59 ft x 38.00 ft x 19.50 ft (normal load)
   119.97 m / 116.61 m x 11.58 m  x 5.94 m

Armament:
      8 - 4.75" / 121 mm guns (4x2 guns), 53.59lbs / 24.31kg shells, 1918 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      8 - 3.50" / 88.9 mm guns in single mounts, 21.44lbs / 9.72kg shells, 1918 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
      2 - 2.24" / 56.9 mm guns in single mounts, 5.62lbs / 2.55kg shells, 1918 Model
     Breech loading guns in deck mounts
     on centreline, all aft, all raised mounts - superfiring
   Weight of broadside 611 lbs / 277 kg
   Shells per gun, main battery: 250
   4 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   382.00 ft / 116.43 m   12.69 ft / 3.87 m
   Ends:   Unarmoured
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.00" / 76 mm   0.50" / 13 mm      3.00" / 76 mm
   2nd:   2.00" / 51 mm   2.00" / 51 mm            -

   - Armour deck: 1.00" / 25 mm, Conning tower: 3.00" / 76 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 30,576 shp / 22,810 Kw = 27.00 kts
   Range 10,000nm at 12.00 kts
   Bunker at max displacement = 1,063 tons

Complement:
   263 - 343

Cost:
   £0.692 million / $2.770 million

Distribution of weights at normal displacement:
   Armament: 76 tons, 1.8 %
   Armour: 832 tons, 19.5 %
      - Belts: 554 tons, 13.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 77 tons, 1.8 %
      - Armour Deck: 184 tons, 4.3 %
      - Conning Tower: 17 tons, 0.4 %
   Machinery: 1,139 tons, 26.7 %
   Hull, fittings & equipment: 1,277 tons, 29.9 %
   Fuel, ammunition & stores: 768 tons, 18.0 %
   Miscellaneous weights: 176 tons, 4.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,785 lbs / 1,717 Kg = 70.6 x 4.8 " / 121 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 13.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 53 %
         - Recoil effect (Restricted arc if above 1.00): 0.51
   Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.527
   Length to Beam Ratio: 10.07 : 1
   'Natural speed' for length: 19.56 kts
   Power going to wave formation at top speed: 59 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 24.63 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24.00 ft / 7.32 m
      - Forecastle (15 %):   14.00 ft / 4.27 m
      - Mid (35 %):      13.50 ft / 4.11 m
      - Quarterdeck (15 %):   13.50 ft / 4.11 m
      - Stern:      14.00 ft / 4.27 m
      - Average freeboard:   14.26 ft / 4.35 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 106.2 %
      - Above water (accommodation/working, high = better): 79.1 %
   Waterplane Area: 9,931 Square feet or 923 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 67 lbs/sq ft or 328 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 2.06
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped

Misc Weights:
100t: Fire Control
25t: Long Range Marconi
16t: 8 Torpedoes
25t: Climitization
10t: Flag Facilites

[Logi]

*glares* Why would you need one in the South China Sea?

[TexanCowboy]

Hmm..? Oh, to serve as the flagship of the Type 0 Base I'm building as part of the treaty. Not that threating, is it?

[Logi]

Nothing was just interested in why you would need a cruiser specifically for that part of the world. I am satisfied with your answer.... for now.

[TexanCowboy]

PM me with your concerns, if you have any... for now.  ;D

[Guinness]

I don't think you need both the 50 pounders and the 20 pounders. They've got nearly the same range and rates of fire, and their splashes will just confuse fire control. I think you'd be better off just shipping 2 or 4 more 50 pounders and ditching the 20 pounders.

The lack of 2 pounder and smaller automatic weapons is old school. :)

[TexanCowboy]

Hmm.. taking your advice. Two more guns were added, and armour was improved. I think I like the first one more, though, as the recoil is better. Besides, the 3.5'' has a max range of 7,000 yards, so it is a close range thing, is it not.

CSS Pearland, CSA  Cruiser laid down 1918 (Engine 1916)

Displacement:
   3,497 t light; 3,658 t standard; 4,247 t normal; 4,718 t full load

Dimensions: Length overall / water x beam x draught
   393.59 ft / 382.59 ft x 38.00 ft x 19.40 ft (normal load)
   119.97 m / 116.61 m x 11.58 m  x 5.91 m

Armament:
      10 - 4.75" / 121 mm guns (5x2 guns), 53.59lbs / 24.31kg shells, 1918 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, majority forward, 2 raised mounts - superfiring
      1 - 0.00" / 0.0 mm guns in single mounts, 0.00lbs / 0.00kg shells, 1918 Model
     Breech loading gun in deck mounts
     on side, evenly spread
      2 - 2.24" / 56.9 mm guns in single mounts, 5.62lbs / 2.55kg shells, 1918 Model
     Breech loading guns in deck mounts
     on centreline, all aft, all raised mounts - superfiring
   Weight of broadside 547 lbs / 248 kg
   Shells per gun, main battery: 250
   4 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   382.00 ft / 116.43 m   13.00 ft / 3.96 m
   Ends:   Unarmoured
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.00" / 76 mm   0.50" / 13 mm      3.00" / 76 mm

   - Armour deck: 1.15" / 29 mm, Conning tower: 3.00" / 76 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 30,474 shp / 22,734 Kw = 27.00 kts
   Range 10,000nm at 12.00 kts
   Bunker at max displacement = 1,059 tons

Complement:
   262 - 341

Cost:
   £0.678 million / $2.710 million

Distribution of weights at normal displacement:
   Armament: 68 tons, 1.6 %
   Armour: 840 tons, 19.8 %
      - Belts: 567 tons, 13.4 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 44 tons, 1.0 %
      - Armour Deck: 211 tons, 5.0 %
      - Conning Tower: 17 tons, 0.4 %
   Machinery: 1,135 tons, 26.7 %
   Hull, fittings & equipment: 1,277 tons, 30.1 %
   Fuel, ammunition & stores: 750 tons, 17.7 %
   Miscellaneous weights: 176 tons, 4.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,871 lbs / 1,756 Kg = 72.2 x 4.8 " / 121 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 13.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 53 %
         - Recoil effect (Restricted arc if above 1.00): 0.54
   Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.527
   Length to Beam Ratio: 10.07 : 1
   'Natural speed' for length: 19.56 kts
   Power going to wave formation at top speed: 59 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 24.63 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24.00 ft / 7.32 m
      - Forecastle (15 %):   14.00 ft / 4.27 m
      - Mid (35 %):      13.50 ft / 4.11 m
      - Quarterdeck (15 %):   13.50 ft / 4.11 m
      - Stern:      14.00 ft / 4.27 m
      - Average freeboard:   14.26 ft / 4.35 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 104.7 %
      - Above water (accommodation/working, high = better): 79.4 %
   Waterplane Area: 9,931 Square feet or 923 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 67 lbs/sq ft or 329 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 2.06
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is cramped

Misc Weights:
100t: Fire Control
25t: Long Range Marconi
16t: 8 Torpedoes
25t: Climitization
10t: Flag Facilites

[Desertfox]

South China Sea you say... a Swiss envoy is enroute to Gran Columbia as you speak...

[The Rock Doctor]

This might work fine in the China Sea, but I think you'd want higher freeboard and improved seakeeping for operations around Antarctica - the waters can get very rough there.

[TexanCowboy]

Well, that plan got cancelled.  ;D
That was a one day fantasty. But as a one way run for the South China Sea, with a range to get to Tricomolle if nessasary. And Desertfox, look up Shanghai. That will explain a lot. This is intended for defense of the Nassau Pact in case of war. Nothing I have can handle you with that few guns.

[Sachmle]

Well, that plan got cancelled.  ;D
That was a one day fantasty. But as a one run for the South China Sea, with a range to get to Tricomolle if nessasary. And Desertfox, look up Shanghai. That will explain a lot. This is entended for defense of the Nassau in case of war. Nothing I have can handle you with that few guns.

What does Shanghai have to do w/ Nassau? It's not UNK here like it is UK IRL. It's China's, which one I have no idea.

[TexanCowboy]

Treaty of Shanghai. I have to establish a Type 0 Base in Shanghai, according to it.

[Logi]

You don't have to, but there's nothing stopping people from going there and shelling your money's worth into rubble.

[The Rock Doctor]

Really?

[Sachmle]

Interesting.