First attempt

[Carthaginian]

ledeper - Weird deck lines; you got a drawing of how the freeboard works? Also, I'm really liking the general layout of things.

Sam- a mixed battery of medium caliber guns was fairly common, the French would even mix two heavy and two medium calibers on some of their ships!

[Jefgte]

Sam- a mixed battery of medium caliber guns was fairly common, the French would even mix two heavy and two medium calibers on some of their ships!

I have noted too the mixed caliber for the heavier guns
274mm is curently added
I suppose that the low rate of fire is the reason for this choice.
The heavy guns like 420, 370, 340 of this periode fire every 2 to 4mn - that is really poor...
so, lighter guns like 274 or 240 fire every mn

I choose also this option & install mixed caliber on my Battleships.


Jef

[ledeper]

Principe de Asturias, Iberia battleship laid down 1880
Barbette ship

Displacement:
   9.896 t light; 10.342 t standard; 11.001 t normal; 11.529 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (360,89 ft / 360,89 ft) x 65,62 ft x (22,97 / 23,93 ft)
   (110,00 m / 110,00 m) x 20,00 m  x (7,00 / 7,29 m)

Armament:
      4 - 12,00" / 305 mm 25,0 cal guns - 723,52lbs / 328,18kg shells, 90 per gun
     Breech loading guns in open barbette mounts, 1880 Model
     2 x Twin mounts on centreline, evenly spread
      8 - 6,00" / 152 mm 30,0 cal guns - 91,78lbs / 41,63kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1880 Model
     8 x Single mounts on sides, evenly spread
      8 - 4,00" / 102 mm 30,0 cal guns - 27,19lbs / 12,33kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1880 Model
     8 x Single mounts on sides, evenly spread
      8 hull mounts in casemates- Limited use in all but light seas
      8 - 1,57" / 40,0 mm 45,0 cal guns - 1,82lbs / 0,82kg shells, 150 per gun
     Breech loading guns in deck mounts, 1880 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 3.860 lbs / 1.751 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,0" / 356 mm   288,71 ft / 88,00 m   9,72 ft / 2,96 m
   Ends:   6,00" / 152 mm     72,16 ft / 21,99 m   9,72 ft / 2,96 m
   Upper:   6,00" / 152 mm   288,71 ft / 88,00 m   8,00 ft / 2,44 m
     Main Belt covers 123 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         10,0" / 254 mm
   2nd:   6,00" / 152 mm         -               -
   3rd:   3,00" / 76 mm         -               -
   4th:   1,00" / 25 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 3,00" / 76 mm
   Forecastle: 3,00" / 76 mm  Quarter deck: 3,00" / 76 mm

   - Conning towers: Forward 10,00" / 254 mm, Aft 4,00" / 102 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 4 shafts, 7.453 ihp / 5.560 Kw = 15,30 kts
   Range 4.400nm at 8,00 kts
   Bunker at max displacement = 1.187 tons (100% coal)

Complement:
   536 - 698

Cost:
   £0,698 million / $2,792 million

Distribution of weights at normal displacement:
   Armament: 376 tons, 3,4 %
      - Guns: 376 tons, 3,4 %
   Armour: 4.396 tons, 40,0 %
      - Belts: 2.481 tons, 22,6 %
      - Armament: 695 tons, 6,3 %
      - Armour Deck: 1.071 tons, 9,7 %
      - Conning Towers: 149 tons, 1,4 %
   Machinery: 1.540 tons, 14,0 %
   Hull, fittings & equipment: 3.475 tons, 31,6 %
   Fuel, ammunition & stores: 1.105 tons, 10,0 %
   Miscellaneous weights: 110 tons, 1,0 %
      - Hull below water: 10 tons
      - Hull above water: 20 tons
      - On freeboard deck: 50 tons
      - Above deck: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15.786 lbs / 7.160 Kg = 21,5 x 12,0 " / 305 mm shells or 2,8 torpedoes
   Stability (Unstable if below 1.00): 1,42
   Metacentric height 4,9 ft / 1,5 m
   Roll period: 12,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 92 %
         - Recoil effect (Restricted arc if above 1.00): 0,33
   Seaboat quality  (Average = 1.00): 1,83

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,708 / 0,712
   Length to Beam Ratio: 5,50 : 1
   'Natural speed' for length: 19,00 kts
   Power going to wave formation at top speed: 44 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   10,00 %,  19,49 ft / 5,94 m,  16,37 ft / 4,99 m
      - Forward deck:   20,00 %,  16,37 ft / 4,99 m,  13,29 ft / 4,05 m
      - Aft deck:   60,00 %,  13,29 ft / 4,05 m,  13,29 ft / 4,05 m
      - Quarter deck:   10,00 %,  13,29 ft / 4,05 m,  13,29 ft / 4,05 m
      - Average freeboard:      14,03 ft / 4,28 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 59,3 %
      - Above water (accommodation/working, high = better): 92,9 %
   Waterplane Area: 19.116 Square feet or 1.776 Square metres
   Displacement factor (Displacement / loading): 124 %
   Structure weight / hull surface area: 137 lbs/sq ft or 671 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1,02
      - Longitudinal: 2,24
      - Overall: 1,10
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather