New Confederate Ships for 1918

[maddox]

I see in her a light Demarce IV.

But a few remarks

1, the armor is too short, it doesn't cover the magazines and engines.
2 what will the 3.5" guns shoot at?
3 why an armored conning tower?

[Kaiser Kirk]

3 why an armored conning tower?

Well, I don't know why Texan chose it, but  2" will stop all shell splinters and pure HE rounds. So it proofs the control area against anything but a direct hit from a medium common or an AP round. Fairly cheap "cost" tonnage wise. Not sure if it meets some design goal or not :)

[TexanCowboy]

3.5'' are standard anti-torpedo boat guns. They would be occupied shooting at small destroyers while the main guns concentrate on something more important.

Guiness, this is a hybrid between the 3rd and 2nd class. The following 3rd class will be about 4,000 tons. This is because 2nd class cruiser are getting too expensive at 16.5 BP. Think battlecruiser for 3rd and 2nd class cruisers.

[TexanCowboy]

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

Displacement:
   7,433 t light; 7,837 t standard; 8,590 t normal; 9,192 t full load

Dimensions: Length overall / water x beam x draught
   551.65 ft / 540.00 ft x 54.00 ft x 21.17 ft (normal load)
   168.14 m / 164.59 m x 16.46 m  x 6.45 m

Armament:
      9 - 7.50" / 191 mm guns (3x3 guns), 250.00lbs / 113.40kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
      4 - 3.50" / 88.9 mm guns in single mounts, 25.00lbs / 11.34kg shells, 1918 Model
     Breech loading guns in deck mounts
     on side, all forward
      4 - 1.58" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on centreline, all aft
   Weight of broadside 2,358 lbs / 1,069 kg
   Shells per gun, main battery: 175
   4 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.50" / 89 mm   420.00 ft / 128.02 m   11.40 ft / 3.47 m
   Ends:   Unarmoured
     Main Belt covers 120 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.00" / 51 mm   1.00" / 25 mm      1.50" / 38 mm
   2nd:   0.20" / 5 mm         -               -
   3rd:   0.20" / 5 mm         -               -

   - Armour deck: 1.00" / 25 mm, Conning tower: 2.00" / 51 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 65,326 shp / 48,733 Kw = 30.50 kts
   Range 8,100nm at 12.00 kts
   Bunker at max displacement = 1,355 tons

Complement:
   445 - 579

Cost:
   £1.620 million / $6.480 million

Distribution of weights at normal displacement:
   Armament: 249 tons, 2.9 %
   Armour: 1,179 tons, 13.7 %
      - Belts: 679 tons, 7.9 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 127 tons, 1.5 %
      - Armour Deck: 355 tons, 4.1 %
      - Conning Tower: 18 tons, 0.2 %
   Machinery: 2,434 tons, 28.3 %
   Hull, fittings & equipment: 3,275 tons, 38.1 %
   Fuel, ammunition & stores: 1,157 tons, 13.5 %
   Miscellaneous weights: 296 tons, 3.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,739 lbs / 3,057 Kg = 31.9 x 7.5 " / 191 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 2.8 ft / 0.8 m
   Roll period: 13.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.487
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 23.24 kts
   Power going to wave formation at top speed: 56 %
   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:      25.42 ft / 7.75 m
      - Forecastle (15 %):   16.18 ft / 4.93 m
      - Mid (35 %):      16.18 ft / 4.93 m
      - Quarterdeck (15 %):   16.18 ft / 4.93 m
      - Stern:      16.18 ft / 4.93 m
      - Average freeboard:   16.73 ft / 5.10 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 118.8 %
      - Above water (accommodation/working, high = better): 120.4 %
   Waterplane Area: 19,202 Square feet or 1,784 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 103 lbs/sq ft or 505 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.43
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent

Misc Weights:
250t: Fire Control
25t: Long Range Marconi
16t: 8 Torpedoes
5t: Reserve

[The Rock Doctor]

It's a Class 2.5 cruiser, then.

[TexanCowboy]

In the background...
_{Well, since that goes 30.5 knots and not 30.6, it is a class 2.565445655 cruiser.}

But yeah, it is.

[Jefgte]

A correct well balanced cruiser.

;)

[TexanCowboy]

Thank you. It began as an exercise to design a heavy cruiser for Wesworld Italy, as their light cruisers are 2,500 tons.

[TexanCowboy]

A response to the New Gran Columbian Cruiser, this equivelent should be layed down in H2/1918.

CSS Austin, CSA  Plane Cruiser laid down 1918 (Engine 1916)

Displacement:
   4,449 t light; 4,586 t standard; 4,994 t normal; 5,321 t full load

Dimensions: Length overall / water x beam x draught
   511.28 ft / 500.00 ft x 46.00 ft x 15.20 ft (normal load)
   155.84 m / 152.40 m x 14.02 m  x 4.63 m

Armament:
      4 - 4.75" / 121 mm guns in single mounts, 53.59lbs / 24.31kg shells, 1918 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      4 - 3.50" / 88.9 mm guns in single mounts, 21.44lbs / 9.73kg shells, 1918 Model
     Breech loading guns in deck mounts with hoists
     on side, all forward
      2 - 1.58" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread
      8 - 1.00" / 25.4 mm guns (4x2 guns), 0.50lbs / 0.23kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 308 lbs / 140 kg
   Shells per gun, main battery: 200

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.75" / 70 mm   354.00 ft / 107.90 m   11.50 ft / 3.51 m
   Ends:   Unarmoured
     Main Belt covers 109 % of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.50" / 13 mm      1.50" / 38 mm
   2nd:   1.00" / 25 mm   0.50" / 13 mm            -

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 39,184 shp / 29,231 Kw = 29.00 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 734 tons

Complement:
   296 - 386

Cost:
   £0.785 million / $3.140 million

Distribution of weights at normal displacement:
   Armament: 39 tons, 0.8 %
   Armour: 777 tons, 15.6 %
      - Belts: 457 tons, 9.2 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 18 tons, 0.4 %
      - Armour Deck: 284 tons, 5.7 %
      - Conning Tower: 19 tons, 0.4 %
   Machinery: 1,460 tons, 29.2 %
   Hull, fittings & equipment: 1,798 tons, 36.0 %
   Fuel, ammunition & stores: 545 tons, 10.9 %
   Miscellaneous weights: 375 tons, 7.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,300 lbs / 2,404 Kg = 98.9 x 4.8 " / 121 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 2.0 ft / 0.6 m
   Roll period: 13.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 76 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality  (Average = 1.00): 1.29

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 10.87 : 1
   'Natural speed' for length: 22.36 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   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:      24.60 ft / 7.50 m
      - Forecastle (15 %):   15.65 ft / 4.77 m
      - Mid (35 %):      15.65 ft / 4.77 m
      - Quarterdeck (15 %):   15.65 ft / 4.77 m
      - Stern:      15.65 ft / 4.77 m
      - Average freeboard:   16.19 ft / 4.93 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 109.5 %
      - Above water (accommodation/working, high = better): 154.3 %
   Waterplane Area: 15,324 Square feet or 1,424 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 71 lbs/sq ft or 346 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.25
      - 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
   Good seaboat, rides out heavy weather easily

Misc Weights:
100t: Fire Control
25t: Long Range Marconi
250 t: 10 Planes
50 t: reserve

[Walter]

Main belt does not fully cover magazines and engineering spaces

Probably needs to be slightly longer. :)

[TexanCowboy]

A matter of feet.

[The Rock Doctor]

If it's a response, you should wait until after I've actually laid it down.

Is there room on this ship for 10 aircraft?

[TexanCowboy]

Most would be in storage. If you read my news, there was a arcticle about mounting flying-off ramps on B turrets of battleships. These are the repair facilities for them. In practice, it would carry 6.

[TexanCowboy]

Fixing the main belt, and cut planes down to 6:

Floater Carrier, CSA  Plane-Cruiser laid down 1918 (Engine 1916)

Displacement:
   3,970 t light; 4,101 t standard; 4,671 t normal; 5,127 t full load

Dimensions: Length overall / water x beam x draught
   445.52 ft / 435.00 ft x 38.75 ft x 18.83 ft (normal load)
   135.79 m / 132.59 m x 11.81 m  x 5.74 m

Armament:
      4 - 4.75" / 121 mm guns (2x2 guns), 53.59lbs / 24.31kg shells, 1918 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      4 - 3.50" / 88.9 mm guns in single mounts, 21.44lbs / 9.73kg shells, 1918 Model
     Breech loading guns in deck mounts with hoists
     on side, all forward
      2 - 1.58" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread
      8 - 1.00" / 25.4 mm guns (4x2 guns), 0.50lbs / 0.23kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 308 lbs / 140 kg
   Shells per gun, main battery: 200

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.75" / 70 mm   354.00 ft / 107.90 m   11.50 ft / 3.51 m
   Ends:   Unarmoured
     Main Belt covers 125 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.50" / 13 mm      1.50" / 38 mm
   2nd:   1.00" / 25 mm   0.50" / 13 mm            -

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 40,000 shp / 29,840 Kw = 29.00 kts
   Range 9,005nm at 12.00 kts
   Bunker at max displacement = 1,026 tons

Complement:
   282 - 367

Cost:
   £0.760 million / $3.039 million

Distribution of weights at normal displacement:
   Armament: 39 tons, 0.8 %
   Armour: 693 tons, 14.8 %
      - Belts: 448 tons, 9.6 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 16 tons, 0.3 %
      - Armour Deck: 211 tons, 4.5 %
      - Conning Tower: 18 tons, 0.4 %
   Machinery: 1,490 tons, 31.9 %
   Hull, fittings & equipment: 1,473 tons, 31.5 %
   Fuel, ammunition & stores: 701 tons, 15.0 %
   Miscellaneous weights: 275 tons, 5.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,650 lbs / 1,656 Kg = 68.1 x 4.8 " / 121 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.32
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has low forecastle
   Block coefficient: 0.515
   Length to Beam Ratio: 11.23 : 1
   'Natural speed' for length: 20.86 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   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:      22.94 ft / 6.99 m
      - Forecastle (15 %):   14.60 ft / 4.45 m (17.00 ft / 5.18 m aft of break)
      - Mid (35 %):      14.60 ft / 4.45 m
      - Quarterdeck (15 %):   14.60 ft / 4.45 m
      - Stern:      14.60 ft / 4.45 m
      - Average freeboard:   15.34 ft / 4.68 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 116.7 %
      - Above water (accommodation/working, high = better): 114.9 %
   Waterplane Area: 11,386 Square feet or 1,058 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 66 lbs/sq ft or 323 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.89
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Misc Weights:
100t: Fire Control
25t: Long Range Marconi
150 t: 6 Planes
50 t: reserve

[Jefgte]

IMO, the hull is too small...
4 mounts 120
4 mounts 88
2 mounts 40
4 mounts 25
& 6 planes

I would like to see the drawing, (profil & top) with all the mounts, bridge, funnel(s) lifeboats & the 6 planes on a 135m hull !!!


Jef  ;)