General Kassar Battleship

Started by ledeper, March 11, 2008, 04:04:06 PM

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ledeper

March 11, 2008, 04:04:06 PM
General Kassar, Baltic Confederation     Battleship laid down 1914

Displacement:
   34.967 t light; 37.188 t standard; 41.300 t normal; 44.590 t full load

Dimensions: Length overall / water x beam x draught
   719,91 ft / 705,38 ft x 101,71 ft x 27,89 ft (normal load)
   219,43 m / 215,00 m x 31,00 m  x 8,50 m

Armament:
      12 - 15,00" / 381 mm guns (4x3 guns), 1.687,50lbs / 765,44kg shells, 1914 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      16 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1914 Model
     Quick firing guns in deck mounts
     on side, all amidships
      10 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1914 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 20.782 lbs / 9.426 kg
   Shells per gun, main battery: 120

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,0" / 356 mm   458,50 ft / 139,75 m   12,10 ft / 3,69 m
   Ends:   2,00" / 51 mm   246,86 ft / 75,24 m   12,10 ft / 3,69 m
   Upper:   6,00" / 152 mm   458,50 ft / 139,75 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   458,50 ft / 139,75 m   27,21 ft / 8,29 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14,0" / 356 mm   8,00" / 203 mm      10,0" / 254 mm
   2nd:   1,00" / 25 mm   1,00" / 25 mm            -
   3rd:   0,50" / 13 mm         -               -

   - Armour deck: 4,00" / 102 mm, Conning tower: 14,00" / 356 mm

Machinery:
   Coal fired boilers, steam turbines,
   Electric motors, 4 shafts, 79.681 shp / 59.442 Kw = 24,80 kts
   Range 8.000nm at 14,00 kts
   Bunker at max displacement = 7.402 tons (100% coal)

Complement:
   1.448 - 1.883

Cost:
   £4,936 million / $19,746 million

Distribution of weights at normal displacement:
   Armament: 2.598 tons, 6,3 %
   Armour: 13.237 tons, 32,0 %
      - Belts: 4.572 tons, 11,1 %
      - Torpedo bulkhead: 923 tons, 2,2 %
      - Armament: 3.040 tons, 7,4 %
      - Armour Deck: 4.341 tons, 10,5 %
      - Conning Tower: 360 tons, 0,9 %
   Machinery: 3.376 tons, 8,2 %
   Hull, fittings & equipment: 15.356 tons, 37,2 %
   Fuel, ammunition & stores: 6.333 tons, 15,3 %
   Miscellaneous weights: 400 tons, 1,0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     51.177 lbs / 23.213 Kg = 30,3 x 15,0 " / 381 mm shells or 7,5 torpedoes
   Stability (Unstable if below 1.00): 1,14
   Metacentric height 6,6 ft / 2,0 m
   Roll period: 16,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 55 %
         - Recoil effect (Restricted arc if above 1.00): 0,69
   Seaboat quality  (Average = 1.00): 1,10

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,723
   Length to Beam Ratio: 6,94 : 1
   'Natural speed' for length: 26,56 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 25,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      31,17 ft / 9,50 m
      - Forecastle (20 %):   18,60 ft / 5,67 m
      - Mid (50 %):      18,60 ft / 5,67 m
      - Quarterdeck (15 %):   18,60 ft / 5,67 m
      - Stern:      18,60 ft / 5,67 m
      - Average freeboard:   19,61 ft / 5,98 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 94,2 %
      - Above water (accommodation/working, high = better): 143,5 %
   Waterplane Area: 58.661 Square feet or 5.450 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 200 lbs/sq ft or 979 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1,00
      - Longitudinal: 1,07
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

P3D

#1
March 11, 2008, 04:16:54 PM
Engine Year 1914.

BC is a bit high at 0.723. Keep it under 0.650. The draught at least is suitable fro Baltic operations - lengthening and lightening the ship is the only option.
10" armor on the exposed barbettes might be a bit risky.
With coal IMO a range of 8000@12 should be enough.
The first purpose of a warship is to remain afloat. Anon.
Below 40 degrees, there is no law. Below 50 degrees, there is no God. sailor's maxim on weather in the Southern seas

Blooded

#2
March 11, 2008, 04:31:29 PM
Hello,

Great guns, great speed, light weight. But... ;D

Engine Year?

Block Co=.72? Even the fattest US BBs had a max .65 as far as I could tell from Friedman. I have limited mine to that. But honestly .61-.62 should be normal max probably(it took a long time to figure this one out). Monitors could probably reach .72. Other than that it is similar to a 'never will be' I tried out.

Belt doesn't reach the top deck, and may be dangerously shallow for high speed, but to each thier own.

If you use SS3 you can get a look at her profile(I don't know what people have in mind for looks with 12' drops from bow to forecastle end on a flush hull-Earl built many of these, seems odd to me).

Anyway, BC really needs support vessels more than BBs (35-40+ DDs would serve you better).

My 2 cents.
"The black earth was sown with bones and watered with blood... for a harvest of sorrow on the land of Rus'. "
   -The Armament of Igor

Korpen

#3
March 11, 2008, 05:15:57 PM
Quote from: blooded on March 11, 2008, 04:31:29 PM

If you use SS3 you can get a look at her profile(I don't know what people have in mind for looks with 12' drops from bow to forecastle end on a flush hull-Earl built many of these, seems odd to me).
I suspect one of two resons
1: Springsharp default freeboard
2: Wanting to avoid "wetship" tag, as that one dpende sorly on the height of the stem
Card-carrying member of the Battlecruiser Fan Club.

The Rock Doctor

#4
March 12, 2008, 07:18:53 AM
I assume the engine year was chosen because this is planned for a few years hence.

It's a very powerful ship, but I'm not really enthusiastic about the secondary battery.  4" guns strike me as a bit light for battleship secondaries.

Agree with the BC and forecastle observations - the current set-up would see "A" turret masked from firing directly forward, I think. 

I think I agree that the BCS needs more escorty ships, but I'm not that clear on what the current fleet totals actually are.

ledeper

#5
March 12, 2008, 07:26:10 AM
It is only a plan ,if there is a "Battleship-race" on the way,I will suspend any battleship building until I can mount 16" guns

The Rock Doctor

#6
March 12, 2008, 07:34:38 AM
There's kind of a battleship race underway already - it's just that few of us have the resources to really invest in it.  However, 12x15" is nothing to sneeze at, especially pre-1920.

ledeper

#7
March 12, 2008, 07:56:00 AM
General Kassar, Baltic Confederation       Battleship  laid down 1914

Displacement:
   35.129 t light; 37.761 t standard; 40.700 t normal; 43.051 t full load

Dimensions: Length overall / water x beam x draught
   721,17 ft / 710,30 ft x 104,99 ft x 28,71 ft (normal load)
   219,81 m / 216,50 m x 32,00 m  x 8,75 m

Armament:
      12 - 15,00" / 381 mm guns (4x3 guns), 1.687,50lbs / 765,44kg shells, 1914 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      10 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1914 Model
     Breech loading guns in deck mounts
     on side, all amidships
      6 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1914 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      20 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1914 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 21.561 lbs / 9.780 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,0" / 356 mm   461,70 ft / 140,73 m   12,30 ft / 3,75 m
   Ends:   Unarmoured
   Upper:   6,00" / 152 mm   461,70 ft / 140,73 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   461,70 ft / 140,73 m   27,69 ft / 8,44 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14,0" / 356 mm   6,00" / 152 mm      14,0" / 356 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm            -
   3rd:   0,50" / 13 mm         -               -
   4th:   0,50" / 13 mm         -               -

   - Armour deck: 4,00" / 102 mm, Conning tower: 14,00" / 356 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 68.169 shp / 50.854 Kw = 24,00 kts
   Range 8.000nm at 14,00 kts
   Bunker at max displacement = 5.290 tons

Complement:
   1.432 - 1.862

Cost:
   £4,914 million / $19,656 million

Distribution of weights at normal displacement:
   Armament: 2.695 tons, 6,6 %
   Armour: 13.612 tons, 33,4 %
      - Belts: 4.439 tons, 10,9 %
      - Torpedo bulkhead: 946 tons, 2,3 %
      - Armament: 3.583 tons, 8,8 %
      - Armour Deck: 4.287 tons, 10,5 %
      - Conning Tower: 357 tons, 0,9 %
   Machinery: 2.626 tons, 6,5 %
   Hull, fittings & equipment: 15.796 tons, 38,8 %
   Fuel, ammunition & stores: 5.571 tons, 13,7 %
   Miscellaneous weights: 400 tons, 1,0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     51.288 lbs / 23.264 Kg = 30,4 x 15,0 " / 381 mm shells or 8,0 torpedoes
   Stability (Unstable if below 1.00): 1,11
   Metacentric height 6,6 ft / 2,0 m
   Roll period: 17,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0,69
   Seaboat quality  (Average = 1.00): 1,21

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,665
   Length to Beam Ratio: 6,77 : 1
   'Natural speed' for length: 26,65 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      29,86 ft / 9,10 m
      - Forecastle (20 %):   18,67 ft / 5,69 m
      - Mid (50 %):      18,67 ft / 5,69 m
      - Quarterdeck (15 %):   18,67 ft / 5,69 m
      - Stern:      18,67 ft / 5,69 m
      - Average freeboard:   19,56 ft / 5,96 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 90,9 %
      - Above water (accommodation/working, high = better): 143,9 %
   Waterplane Area: 57.937 Square feet or 5.382 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 208 lbs/sq ft or 1.016 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,99
      - Longitudinal: 1,13
      - 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
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