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Italy 1870 start

Started by Walter, July 30, 2013, 09:13:27 AM

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Walter

The ships of the Fearsome and Almighty Pasta Navy. ;D

More a test of a sailing vesel to start with. :)

Vittoria, Italy Ship of the line laid down 1870
Armoured Frigate (Broadside ironclad)


Displacement:
   5,700 t light; 6,353 t standard; 6,598 t normal; 6,795 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (269.06 ft / 260.00 ft) x 58.00 ft x (27.50 / 28.17 ft)
   (82.01 m / 79.25 m) x 17.68 m  x (8.38 / 8.59 m)

Armament:
      62 - 8.00" / 203 mm 15.0 cal guns - 120.00lbs / 54.43kg shells, 100 per gun
     Muzzle loading guns in broadside mounts, 1870 Model
     30 x Single mounts on sides, evenly spread
      30 hull mounts on upper deck- Limited use in heavy seas
     32 x Single mounts on sides, evenly spread
      32 hull mounts on gun deck- Limited use in heavy seas
      58 - 5.00" / 127 mm 15.0 cal guns - 31.99lbs / 14.51kg shells, 100 per gun
     Muzzle loading guns in broadside mounts, 1870 Model
     58 x Single mounts on sides, evenly spread
      26 raised mounts
      1 - 6.30" / 160 mm 12.0 cal gun - 67.99lbs / 30.84kg shells, 100 per gun
     Breech loading gun in broadside mount, 1870 Model
     1 x Single mount on sides, forward deck forward
      Weight of broadside 9,363 lbs / 4,247 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.25" / 57 mm   260.00 ft / 79.25 m   14.00 ft / 4.27 m
   Upper:   2.25" / 57 mm   260.00 ft / 79.25 m   16.00 ft / 4.88 m
     Main Belt covers 154% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -
   2nd:   1.00" / 25 mm         -               -
   3rd:   1.00" / 25 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 1.00" / 25 mm
   Forecastle: 1.00" / 25 mm  Quarter deck: 1.00" / 25 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 2,518 ihp / 1,878 Kw = 12.00 kts
   Range 1,500nm at 8.00 kts
   Bunker at max displacement = 443 tons (100% coal)

Complement:
   365 - 475

Cost:
   £0.514 million / $2.054 million

Distribution of weights at normal displacement:
   Armament: 619 tons, 9.4%
      - Guns: 619 tons, 9.4%
   Armour: 1,082 tons, 16.4%
      - Belts: 649 tons, 9.8%
      - Armament: 241 tons, 3.6%
      - Armour Deck: 192 tons, 2.9%
   Machinery: 617 tons, 9.4%
   Hull, fittings & equipment: 2,522 tons, 38.2%
   Fuel, ammunition & stores: 898 tons, 13.6%
   Miscellaneous weights: 860 tons, 13.0%
      - Above deck: 860 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8,509 lbs / 3,859 Kg = 47.5 x 8.0 " / 203 mm shells or 1.8 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 3.5 ft / 1.1 m
   Roll period: 13.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.97
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.557 / 0.560
   Length to Beam Ratio: 4.48 : 1
   'Natural speed' for length: 16.12 kts
   Power going to wave formation at top speed: 40 %
   Trim (Max stability = 0, Max steadiness = 100): 25
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 5.00 ft / 1.52 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00%,  23.00 ft / 7.01 m,  23.00 ft / 7.01 m
      - Forward deck:   30.00%,  23.00 ft / 7.01 m,  23.00 ft / 7.01 m
      - Aft deck:   35.00%,  23.00 ft / 7.01 m,  23.00 ft / 7.01 m
      - Quarter deck:   15.00%,  23.00 ft / 7.01 m,  23.00 ft / 7.01 m
      - Average freeboard:      23.00 ft / 7.01 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 68.3%
      - Above water (accommodation/working, high = better): 123.5%
   Waterplane Area: 10,286 Square feet or 956 Square metres
   Displacement factor (Displacement / loading): 123%
   Structure weight / hull surface area: 143 lbs/sq ft or 697 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.76
      - Longitudinal: 11.94
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Sail Speed 15 knots

Displacement = 6598 tons
7 knots (5%) = 330 tons
15 knots (13%) = 858 tons

Walter

... and something without sails...

Devastazione (1869), Italy Armored ship laid down 1870
Armoured Corvette (Central battery ironclad)


Displacement:
   7,000 t light; 7,275 t standard; 8,434 t normal; 9,361 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (295.00 ft / 285.00 ft) x 64.00 ft x (27.00 / 29.43 ft)
   (89.92 m / 86.87 m) x 19.51 m  x (8.23 / 8.97 m)

Armament:
      4 - 12.00" / 305 mm 13.0 cal guns - 600.01lbs / 272.16kg shells, 80 per gun
     Muzzle loading guns in Coles/Ericsson turret mounts, 1870 Model
     2 x Twin mounts on centreline ends, evenly spread
      Weight of broadside 2,400 lbs / 1,089 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.0" / 305 mm   200.00 ft / 60.96 m   8.00 ft / 2.44 m
   Ends:   8.00" / 203 mm     85.00 ft / 25.91 m   7.00 ft / 2.13 m
   Upper:   12.0" / 305 mm   130.00 ft / 39.62 m   8.00 ft / 2.44 m
     Main Belt covers 108% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14.0" / 356 mm   10.0" / 254 mm            -

   - Armoured deck - multiple decks:
   For and Aft decks: 3.00" / 76 mm
   Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 9.00" / 229 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 5,158 ihp / 3,848 Kw = 14.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 2,086 tons (100% coal)

Complement:
   439 - 572

Cost:
   £0.491 million / $1.963 million

Distribution of weights at normal displacement:
   Armament: 129 tons, 1.5%
      - Guns: 129 tons, 1.5%
   Armour: 2,855 tons, 33.9%
      - Belts: 1,705 tons, 20.2%
      - Armament: 414 tons, 4.9%
      - Armour Deck: 655 tons, 7.8%
      - Conning Tower: 80 tons, 1.0%
   Machinery: 1,264 tons, 15.0%
   Hull, fittings & equipment: 2,751 tons, 32.6%
   Fuel, ammunition & stores: 1,434 tons, 17.0%
   Miscellaneous weights: 0 tons, 0.0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8,673 lbs / 3,934 Kg = 14.3 x 12.0 " / 305 mm shells or 2.4 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 4.1 ft / 1.2 m
   Roll period: 13.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.28
   Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
   Hull has low forecastle, low quarterdeck ,
     a ram bow and a round stern
   Block coefficient (normal/deep): 0.599 / 0.610
   Length to Beam Ratio: 4.45 : 1
   'Natural speed' for length: 16.88 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 65
   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:   25.00%,  5.00 ft / 1.52 m,  5.00 ft / 1.52 m
      - Forward deck:   30.00%,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Aft deck:   15.00%,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Quarter deck:   30.00%,  4.50 ft / 1.37 m,  4.50 ft / 1.37 m
      - Average freeboard:      7.55 ft / 2.30 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 57.9%
      - Above water (accommodation/working, high = better): 63.6%
   Waterplane Area: 13,333 Square feet or 1,239 Square metres
   Displacement factor (Displacement / loading): 140%
   Structure weight / hull surface area: 151 lbs/sq ft or 735 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.57
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

Walter

... and something small with truly aweful awesome seakeeping...

Freeboard is a bit fo a guess with exactly what still sticks above the water when it is operational and the height of that section (that 6 feet bit is just me being silly with the smokestack).

Davide, Italy Torpedo Boat laid down 1870


Displacement:
   25 t light; 25 t standard; 26 t normal; 26 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (50.00 ft / 50.00 ft) x 6.00 ft x (5.00 / 5.09 ft)
   (15.24 m / 15.24 m) x 1.83 m  x (1.52 / 1.55 m)

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 2 ihp / 2 Kw = 4.00 kts
   Range 500nm at 4.00 kts
   Bunker at max displacement = 1 tons (100% coal)

Complement:
   5 - 7

Cost:
   £0.001 million / $0.004 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0%
   Machinery: 1 tons, 2.3%
   Hull, fittings & equipment: 14 tons, 54.1%
   Fuel, ammunition & stores: 1 tons, 4.7%
   Miscellaneous weights: 10 tons, 38.9%
      - Hull below water: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     28 lbs / 13 Kg = 0.4 x 6 " / 152 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 0.1 ft / 0.0 m
   Roll period: 7.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 21 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 0.18

Hull form characteristics:
   Hull has low forecastle, rise forward of midbreak, low quarterdeck ,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.600 / 0.602
   Length to Beam Ratio: 8.33 : 1
   'Natural speed' for length: 7.07 kts
   Power going to wave formation at top speed: 18 %
   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:   35.00%,  0.00 ft / 0.00 m,  0.50 ft / 0.15 m
      - Forward deck:   5.00%,  6.00 ft / 1.83 m,  6.00 ft / 1.83 m
      - Aft deck:   25.00%,  1.00 ft / 0.30 m,  1.00 ft / 0.30 m
      - Quarter deck:   35.00%,  0.50 ft / 0.15 m,  0.00 ft / 0.00 m
      - Average freeboard:      0.74 ft / 0.23 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 50.9%
      - Above water (accommodation/working, high = better): 15.0%
   Waterplane Area: 215 Square feet or 20 Square metres
   Displacement factor (Displacement / loading): 230%
   Structure weight / hull surface area: 35 lbs/sq ft or 170 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 2.28
      - Longitudinal: 4.24
      - Overall: 2.43
   Excellent machinery, storage, compartmentation space
   Extremely poor accommodation and workspace room
   Ship has quick, lively roll, not a steady gun platform
   Caution: Lacks seaworthiness - very limited seakeeping ability

miscellaneous weight
7 tons for ballast
3 tons for spar and torpedo

KWorld

#3
On Vittoria, the lower bank of 32-pounders should be below the main deck, rather than having a bank of them raised.  They'd be hanging in the air if they were raised, without a deck to run in and out on.

On Davide, well, it appears to work, in SS anyway.  Don't know that they'll work much better here than historically, but still...

Walter

QuoteOn Vittoria, the lower bank of 32-pounders should be below the main deck, rather than having a bank of them raised.  They'd be hanging in the air if they were raised, without a deck to run in and out on.
In reality, it probably should be simmed that way, but the thing is that when you do that, the SS report reads as if the upper bank of the 8" guns is on the same deck as the lower bank of the 32-pounders. This way, each bank looks separate from the other. Simming them the way you mention will result in a HS gain of 0.04 so doing it this way does not improve the design itself. It only improves the way it read (at least for me).
QuoteOn Davide, well, it appears to work, in SS anyway.
Well, historically the David worked as well... kinda... against the USS New Ironsides.
QuoteDon't know that they'll work much here than historically, but still...
Probably less with the appearance of the metal clad ships. But it is small and will barely make a dent in the budget we start with so it is there more for fun that for actual use (the same is true for the Vittoria and the other sailing ship sim I got).

KWorld

Quote from: Walter on July 30, 2013, 11:22:58 AM
QuoteOn Vittoria, the lower bank of 32-pounders should be below the main deck, rather than having a bank of them raised.  They'd be hanging in the air if they were raised, without a deck to run in and out on.
In reality, it probably should be simmed that way, but the thing is that when you do that, the SS report reads as if the upper bank of the 8" guns is on the same deck as the lower bank of the 32-pounders. This way, each bank looks separate from the other. Simming them the way you mention will result in a HS gain of 0.04 so doing it this way does not improve the design itself. It only improves the way it read (at least for me).

Probably something to handle with notes, then, apparently SS wasn't expecting to handle 4-decker ships of the line.

Quote
QuoteDon't know that they'll work much better here than historically, but still...
Probably less with the appearance of the metal clad ships. But it is small and will barely make a dent in the budget we start with so it is there more for fun that for actual use (the same is true for the Vittoria and the other sailing ship sim I got).

Well, those did just see service at Lissa....  ;)  Italy I can see not having a huge use for sailing ships, at least unless she gets a hankering to go to war with China or Japan.

Walter

QuoteProbably something to handle with notes, then, apparently SS wasn't expecting to handle 4-decker ships of the line.
Will do. Wiki says "three-decked" so I assume that they only look at the below deck guns for the classification. I could also sim it the way you say and edit the lower bank of 32-pounders as "upper gun deck" instead of the "gun deck" SS gives in the report.
QuoteItaly I can see not having a huge use for sailing ships, at least unless she gets a hankering to go to war with China or Japan.
The ships I have taken are based on OTL Royal Navy ships which did have masts so they are simmed with masts (with a few exceptions). That way I can use the pics of the ships that are on wiki. :)

Walter

#7
A few more Italian start-up vessels...

Cerbero, Italy Breastwork monitor laid down 1870

Armoured Corvette (Central battery ironclad)

Displacement:
   3,000 t light; 3,136 t standard; 3,253 t normal; 3,346 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (230.00 ft / 230.00 ft) x 46.00 ft x (16.00 / 16.40 ft)
   (70.10 m / 70.10 m) x 14.02 m  x (4.88 / 5.00 m)

Armament:
      4 - 10.00" / 254 mm 15.0 cal guns - 400.01lbs / 181.44kg shells, 80 per gun
     Muzzle loading guns in Coles/Ericsson turret mounts, 1870 Model
     2 x Twin mounts on centreline ends, evenly spread
      Weight of broadside 1,600 lbs / 726 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   8.00" / 203 mm   230.00 ft / 70.10 m   8.50 ft / 2.59 m
   Upper:   9.00" / 229 mm   113.00 ft / 34.44 m   6.50 ft / 1.98 m
     Main Belt covers 154% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.0" / 254 mm   9.00" / 229 mm            -

   - Armoured deck - single deck:
   For and Aft decks: 1.25" / 32 mm
   Forecastle: 1.25" / 32 mm  Quarter deck: 1.25" / 32 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 770 ihp / 574 Kw = 9.60 kts
   Range 2,000nm at 6.00 kts
   Bunker at max displacement = 209 tons (100% coal)

Complement:
   214 - 279

Cost:
   £0.178 million / $0.710 million

Distribution of weights at normal displacement:
   Armament: 108 tons, 3.3%
      - Guns: 108 tons, 3.3%
   Armour: 1,348 tons, 41.5%
      - Belts: 909 tons, 27.9%
      - Armament: 249 tons, 7.7%
      - Armour Deck: 190 tons, 5.9%
   Machinery: 189 tons, 5.8%
   Hull, fittings & equipment: 1,355 tons, 41.7%
   Fuel, ammunition & stores: 253 tons, 7.8%
   Miscellaneous weights: 0 tons, 0.0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,494 lbs / 2,946 Kg = 18.6 x 10.0 " / 254 mm shells or 3.0 torpedoes
   Stability (Unstable if below 1.00): 1.27
   Metacentric height 2.4 ft / 0.7 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
   Hull has low forecastle, low quarterdeck ,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.673 / 0.675
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 15.17 kts
   Power going to wave formation at top speed: 32 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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:   25.00%,  4.00 ft / 1.22 m,  4.00 ft / 1.22 m
      - Forward deck:   30.00%,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Aft deck:   15.00%,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Quarter deck:   30.00%,  4.00 ft / 1.22 m,  4.00 ft / 1.22 m
      - Average freeboard:      6.93 ft / 2.11 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 34.5%
      - Above water (accommodation/working, high = better): 76.5%
   Waterplane Area: 8,185 Square feet or 760 Square metres
   Displacement factor (Displacement / loading): 150%
   Structure weight / hull surface area: 127 lbs/sq ft or 622 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.40
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Walter

#8
Ictineo, Da Vinci Experimental Submarine laid down 1870


Displacement:
   45 t light; 46 t standard; 47 t normal; 47 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (45.93 ft / 45.93 ft) x 6.56 ft x (9.84 / 9.90 ft)
   (14.00 m / 14.00 m) x 2.00 m  x (3.00 / 3.02 m)

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 6 ihp / 4 Kw = 4.50 kts
   Range 100nm at 4.00 kts
   Bunker at max displacement = 1 tons (100% coal)

Complement:
   8 - 11

Cost:
   £0.002 million / $0.007 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.0%
   Machinery: 1 tons, 3.0%
   Hull, fittings & equipment: 32 tons, 68.4%
   Fuel, ammunition & stores: 1 tons, 2.9%
   Miscellaneous weights: 12 tons, 25.7%
      - Hull below water: 10 tons
      - Hull above water: 2 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     43 lbs / 20 Kg = 0.6 x 6 " / 152 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.06
   Metacentric height 0.1 ft / 0.0 m
   Roll period: 9.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 0 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality  (Average = 1.00): 0.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.551
   Length to Beam Ratio: 7.00 : 1
   'Natural speed' for length: 6.78 kts
   Power going to wave formation at top speed: 24 %
   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:   20.00%,  0.00 ft / 0.00 m,  0.00 ft / 0.00 m
      - Forward deck:   30.00%,  0.00 ft / 0.00 m,  0.00 ft / 0.00 m
      - Aft deck:   35.00%,  0.00 ft / 0.00 m,  0.00 ft / 0.00 m
      - Quarter deck:   15.00%,  0.00 ft / 0.00 m,  0.00 ft / 0.00 m
      - Average freeboard:      0.00 ft / 0.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 38.9%
      - Above water (accommodation/working, high = better): 0.0%
   Waterplane Area: 204 Square feet or 19 Square metres
   Displacement factor (Displacement / loading): 316%
   Structure weight / hull surface area: 63 lbs/sq ft or 306 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 3.28
      - Longitudinal: 18.70
      - Overall: 3.90
   Excellent machinery, storage, compartmentation space
   Extremely poor accommodation and workspace room
   Ship has quick, lively roll, not a steady gun platform
   Caution: Lacks seaworthiness - very limited seakeeping ability

Walter

#9
Scorpione, Italy Armored ship laid down 1870
Armoured Corvette (Broadside ironclad)


Displacement:
   2,105 t light; 2,210 t standard; 2,497 t normal; 2,725 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (227.50 ft / 224.50 ft) x 42.50 ft x (17.00 / 18.26 ft)
   (69.34 m / 68.43 m) x 12.95 m  x (5.18 / 5.56 m)

Armament:
      4 - 9.00" / 229 mm 14.0 cal guns - 250.00lbs / 113.40kg shells, 100 per gun
     Muzzle loading guns in Coles/Ericsson turret mounts, 1870 Model
     2 x Twin mounts on centreline ends, evenly spread
      Weight of broadside 1,000 lbs / 454 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.50" / 114 mm   150.00 ft / 45.72 m   10.00 ft / 3.05 m
   Ends:   2.00" / 51 mm     74.50 ft / 22.71 m   10.00 ft / 3.05 m
     Main Belt covers 103% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.0" / 254 mm   7.00" / 178 mm            -

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 1 shaft, 1,106 ihp / 825 Kw = 11.20 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 515 tons (100% coal)

Complement:
   176 - 229

Cost:
   £0.143 million / $0.572 million

Distribution of weights at normal displacement:
   Armament: 74 tons, 3.0%
      - Guns: 74 tons, 3.0%
   Armour: 543 tons, 21.8%
      - Belts: 354 tons, 14.2%
      - Armament: 189 tons, 7.6%
   Machinery: 271 tons, 10.9%
   Hull, fittings & equipment: 982 tons, 39.3%
   Fuel, ammunition & stores: 392 tons, 15.7%
   Miscellaneous weights: 235 tons, 9.4%
      - Above deck: 235 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,709 lbs / 1,229 Kg = 10.6 x 9.0 " / 229 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 1.8 ft / 0.5 m
   Roll period: 13.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.37
   Seaboat quality  (Average = 1.00): 1.35

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck ,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.539 / 0.548
   Length to Beam Ratio: 5.28 : 1
   'Natural speed' for length: 14.98 kts
   Power going to wave formation at top speed: 36 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.00 ft / 0.91 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00%,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Forward deck:   30.00%,  6.00 ft / 1.83 m,  6.00 ft / 1.83 m
      - Aft deck:   35.00%,  6.00 ft / 1.83 m,  6.00 ft / 1.83 m
      - Quarter deck:   15.00%,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
      - Average freeboard:      7.75 ft / 2.36 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 49.3%
      - Above water (accommodation/working, high = better): 41.4%
   Waterplane Area: 6,377 Square feet or 592 Square metres
   Displacement factor (Displacement / loading): 154%
   Structure weight / hull surface area: 106 lbs/sq ft or 518 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.55
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Extremely poor accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Sail Speed 12.39 knots

KWorld

Re: Scorpione - A smallish masted turret ship, nice.


Not sure about Ictineo, what's it supposed to do?


Re: Cerbero - Ah, a breastwork monitor, always good.  :)



Walter

#11
Scorpione is the OTL HMS scorpion (though the pic is of HMS Wyvern).
Cerbero is the OTL HMS Cerberus.
Ictineo is the OTL Ictineo II... and what's it supposed to do? Don't know yet. Submerge? Sink? Cause the company that built it to go bankrupt? Be scrapped from the list before the start? For now it is on the navy list, but it can easily be taken off it. It is just one ship and only a few dozen tons. Should be noted that with all the simming and shifting of BPs and cash, the Vittoria became a victim and is no longer on my list, so the same could happen with the Ictineo.

KWorld

I recognized Scorpion and Cerberus.  Ictineo II was new to me.  An interesting vessel, complete with an air-independent power source (though I have no idea what the range submerged was).

Walter

Can't remember how I got to the Ictineo, but I never heard of it either before running across it. No idea about range either.

Looking a bit further with google, I ran across this...
QuoteIt could stay submerged for eight hours and plunge to a depth of 50 meters. Monturiol calculated that the maximum possible depth was 500 meters, but chose not to take the risk of diving to this depth.
500 meters?!? :o
... you know, I would not have risked it either... health and safety you know. :)

Another site mentions 90 feet and 7 ½ hours. Neiher cases indicate that that is 8/7 ½ hours running the engine though.

KWorld

Quote from: Walter on September 27, 2013, 08:32:56 AM
Can't remember how I got to the Ictineo, but I never heard of it either before running across it. No idea about range either.

Looking a bit further with google, I ran across this...
QuoteIt could stay submerged for eight hours and plunge to a depth of 50 meters. Monturiol calculated that the maximum possible depth was 500 meters, but chose not to take the risk of diving to this depth.
500 meters?!? :o
... you know, I would not have risked it either... health and safety you know. :)

Another site mentions 90 feet and 7 ½ hours. Neiher cases indicate that that is 8/7 ½ hours running the engine though.

I'd be surprised if those depths were right (I'm SURE the 500m is wrong, the 50m one is certainly dubious as well).  The times are probably for the amount of air for the crew.