New French Battleships

[maddox]

Occitanie?

Maybe a thing to put your well payed spy service on.

But rumors are that there is an Italian BB in Tunis that isn't in the books.



;D

[maddox]

A follow up on the Bretagnes.

Auvergne/Centre/Champagne/Picardie, French Battleship laid down 1918 (Engine 1916)

Displacement:
   27.000 t light; 28.740 t standard; 31.482 t normal; 33.676 t full load

Dimensions: Length overall / water x beam x draught
   626,64 ft / 623,36 ft x 101,71 ft x 27,89 ft (normal load)
   191,00 m / 190,00 m x 31,00 m  x 8,50 m

Armament:
      8 - 14,96" / 380 mm guns (4x2 guns), 1.807,79lbs / 820,00kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 1 raised mount - superfiring
      20 - 5,51" / 140 mm guns (10x2 guns), 92,59lbs / 42,00kg shells, 1918 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      4 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 16.320 lbs / 7.403 kg
   Shells per gun, main battery: 120

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,0" / 356 mm   355,31 ft / 108,30 m   20,00 ft / 6,10 m
   Ends:   Unarmoured
     Main Belt covers 88% of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   355,31 ft / 108,30 m   32,00 ft / 9,75 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14,0" / 356 mm   12,0" / 305 mm      14,0" / 356 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 3,50" / 89 mm, Conning tower: 15,00" / 381 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 43.071 shp / 32.131 Kw = 22,00 kts
   Range 7.000nm at 16,00 kts
   Bunker at max displacement = 4.935 tons

Complement:
   1.181 - 1.536

Cost:
   £5,505 million / $22,020 million

Distribution of weights at normal displacement:
   Armament: 1.884 tons, 6,0%
   Armour: 11.672 tons, 37,1%
      - Belts: 4.526 tons, 14,4%
      - Torpedo bulkhead: 841 tons, 2,7%
      - Armament: 2.915 tons, 9,3%
      - Armour Deck: 3.068 tons, 9,7%
      - Conning Tower: 322 tons, 1,0%
   Machinery: 1.605 tons, 5,1%
   Hull, fittings & equipment: 11.439 tons, 36,3%
   Fuel, ammunition & stores: 4.482 tons, 14,2%
   Miscellaneous weights: 400 tons, 1,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     42.628 lbs / 19.336 Kg = 25,5 x 15,0 " / 380 mm shells or 8,0 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 6,1 ft / 1,9 m
   Roll period: 17,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,54
   Seaboat quality  (Average = 1.00): 1,22

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,623
   Length to Beam Ratio: 6,13 : 1
   'Natural speed' for length: 24,97 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26,25 ft / 8,00 m
      - Forecastle (23%):   16,40 ft / 5,00 m
      - Mid (50%):      15,09 ft / 4,60 m
      - Quarterdeck (20%):   15,09 ft / 4,60 m
      - Stern:      15,09 ft / 4,60 m
      - Average freeboard:   16,48 ft / 5,02 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 80,0%
      - Above water (accommodation/working, high = better): 117,7%
   Waterplane Area: 47.383 Square feet or 4.402 Square metres
   Displacement factor (Displacement / loading): 104%
   Structure weight / hull surface area: 187 lbs/sq ft or 913 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,98
      - Longitudinal: 1,22
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

250 ton FC
25 ton ERADe equipment
75 ton Crew comfort
25 ton Long range marconi
25 ton undefined

[Jefgte]

A good classic BB

;)

[maddox]

Thank you.

I'm rather happy with the result on 27ktons.

[Tanthalas]

Nice BB, I rather like it honestly

[TexanCowboy]

Don't you have triple turrets? I would think that would be more useful. 3x3 insted of 4x2.

[Tanthalas]

Don't you have triple turrets? I would think that would be more useful. 3x3 insted of 4x2.

France dosnt use tripple turrets...

[TexanCowboy]

Masque...

[Tanthalas]

Masque...

an aberation... I swear I had the argument with Maddox once...

[TexanCowboy]

Well, historically, the British started usign tripple turrets in 1920, so do you think that will happen to the french?

[maddox]

Don't you have triple turrets? I would think that would be more useful. 3x3 insted of 4x2.

The tripple turret is developed, and at least 8 are seen in the naval shipyard at Brest.

[maddox]

The 3*3 version . A more French hull has its advantages.

Auvergne II, French Battleship laid down 1918 (Engine 1916)

Displacement:
   27.001 t light; 28.744 t standard; 31.060 t normal; 32.913 t full load

Dimensions: Length overall / water x beam x draught
   626,64 ft / 623,36 ft x 106,63 ft x 29,53 ft (normal load)
   191,00 m / 190,00 m x 32,50 m  x 9,00 m

Armament:
      9 - 14,96" / 380 mm guns (3x3 guns), 1.674,25lbs / 759,43kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
      16 - 5,51" / 140 mm guns (8x2 guns), 92,59lbs / 42,00kg shells, 1918 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      4 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 16.556 lbs / 7.510 kg
   Shells per gun, main battery: 120

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,0" / 356 mm   342,85 ft / 104,50 m   18,50 ft / 5,64 m
   Ends:   Unarmoured
     Main Belt covers 85% of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   342,85 ft / 104,50 m   27,17 ft / 8,28 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14,0" / 356 mm   10,0" / 254 mm      14,0" / 356 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 3,25" / 83 mm, Conning tower: 14,00" / 356 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 41.754 shp / 31.149 Kw = 22,00 kts
   Range 6.000nm at 16,00 kts
   Bunker at max displacement = 4.169 tons

Complement:
   1.169 - 1.520

Cost:
   £5,773 million / $23,090 million

Distribution of weights at normal displacement:
   Armament: 2.052 tons, 6,6%
   Armour: 10.563 tons, 34,0%
      - Belts: 4.084 tons, 13,1%
      - Torpedo bulkhead: 689 tons, 2,2%
      - Armament: 2.692 tons, 8,7%
      - Armour Deck: 2.799 tons, 9,0%
      - Conning Tower: 298 tons, 1,0%
   Machinery: 1.556 tons, 5,0%
   Hull, fittings & equipment: 12.431 tons, 40,0%
   Fuel, ammunition & stores: 4.059 tons, 13,1%
   Miscellaneous weights: 400 tons, 1,3%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     40.552 lbs / 18.394 Kg = 24,2 x 15,0 " / 380 mm shells or 7,4 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 6,6 ft / 2,0 m
   Roll period: 17,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,53
   Seaboat quality  (Average = 1.00): 1,29

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,554
   Length to Beam Ratio: 5,85 : 1
   'Natural speed' for length: 24,97 kts
   Power going to wave formation at top speed: 44 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: 3,28 ft / 1,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      28,87 ft / 8,80 m
      - Forecastle (23%):   16,40 ft / 5,00 m
      - Mid (50%):      16,40 ft / 5,00 m
      - Quarterdeck (22%):   16,40 ft / 5,00 m
      - Stern:      16,40 ft / 5,00 m
      - Average freeboard:   17,55 ft / 5,35 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84,1%
      - Above water (accommodation/working, high = better): 124,4%
   Waterplane Area: 46.557 Square feet or 4.325 Square metres
   Displacement factor (Displacement / loading): 102%
   Structure weight / hull surface area: 204 lbs/sq ft or 996 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,96
      - Longitudinal: 1,48
      - 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

250 ton FC
25 ton ERADe equipment
75 ton Crew comfort
25 ton Long range marconi
25 ton undefined

[TexanCowboy]

Wow. Thats not something I would want to fight. Thats a fairly high cruising speed, though.

[maddox]

Same as the new cruisers and DD's.

[Tanthalas]

Whistles inocently while looking at the 19 knot cruise on his new BCs