Spain ships 1904 projects

[olekit24]

BB El Rey Alfonso XII

El Rey Alfonso XII, Spain Battleship laid down 1904 (Engine 1900)

Displacement:
   9 327 t light; 9 923 t standard; 10 649 t normal; 11 230 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (380,91 ft / 376,97 ft) x 67,59 ft x (22,97 / 24,02 ft)
   (116,10 m / 114,90 m) x 20,60 m  x (7,00 / 7,32 m)

Armament:
      4 - 12,01" / 305 mm 40,0 cal guns - 829,71lbs / 376,35kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     1 x Twin mount on centreline, forward deck forward
     1 x Twin mount on centreline, aft deck aft
      14 - 5,51" / 140 mm 45,0 cal guns - 84,44lbs / 38,30kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1895 Model
     10 x Single mounts on sides, evenly spread
     4 x Single mounts on sides, evenly spread
      4 hull mounts in lower casemates- Limited use in any sea
      4 - 2,99" / 76,0 mm 40,0 cal guns - 12,83lbs / 5,82kg shells, 150 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      4 - 2,99" / 76,0 mm 40,0 cal guns - 12,83lbs / 5,82kg shells, 150 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      6 - 1,06" / 27,0 mm 27,0 cal guns - 0,55lbs / 0,25kg shells, 150 per gun
     Machine guns in deck mounts, 1895 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 4 607 lbs / 2 090 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10,1" / 256 mm   253,28 ft / 77,20 m   7,55 ft / 2,30 m
   Ends:   3,94" / 100 mm   123,69 ft / 37,70 m   7,55 ft / 2,30 m
   Upper:   3,35" / 85 mm   253,25 ft / 77,19 m   10,83 ft / 3,30 m
     Main Belt covers 103% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7,99" / 203 mm   1,97" / 50 mm      10,0" / 254 mm
   2nd:   5,51" / 140 mm         -               -
   3rd:   1,97" / 50 mm         -               -
   4th:   1,97" / 50 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 2,95" / 75 mm
   Forecastle: 2,17" / 55 mm  Quarter deck: 2,17" / 55 mm

   - Conning towers: Forward 10,08" / 256 mm, Aft 2,95" / 75 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 14 818 ihp / 11 054 Kw = 19,00 kts
   Range 5 000nm at 10,00 kts
   Bunker at max displacement = 1 306 tons (100% coal)

Complement:
   523 - 681

Cost:
   £0,987 million / $3,947 million

Distribution of weights at normal displacement:
   Armament: 718 tons, 6,7%
      - Guns: 718 tons, 6,7%
   Armour: 3 218 tons, 30,2%
      - Belts: 1 399 tons, 13,1%
      - Armament: 674 tons, 6,3%
      - Armour Deck: 1 009 tons, 9,5%
      - Conning Towers: 136 tons, 1,3%
   Machinery: 2 315 tons, 21,7%
   Hull, fittings & equipment: 3 035 tons, 28,5%
   Fuel, ammunition & stores: 1 323 tons, 12,4%
   Miscellaneous weights: 40 tons, 0,4%
      - Hull below water: 8 tons
      - Hull above water: 32 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     10 784 lbs / 4 892 Kg = 12,5 x 12,0 " / 305 mm shells or 1,5 torpedoes
   Stability (Unstable if below 1.00): 1,22
   Metacentric height 4,0 ft / 1,2 m
   Roll period: 14,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0,76
   Seaboat quality  (Average = 1.00): 1,55

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,637 / 0,642
   Length to Beam Ratio: 5,58 : 1
   'Natural speed' for length: 19,42 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 65
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: -3,28 ft / -1,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00%,  18,70 ft / 5,70 m,  17,72 ft / 5,40 m
      - Forward deck:   30,00%,  17,39 ft / 5,30 m,  17,06 ft / 5,20 m
      - Aft deck:   35,00%,  17,06 ft / 5,20 m,  17,06 ft / 5,20 m
      - Quarter deck:   15,00%,  17,06 ft / 5,20 m,  17,06 ft / 5,20 m
      - Average freeboard:      17,32 ft / 5,28 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101,3%
      - Above water (accommodation/working, high = better): 120,4%
   Waterplane Area: 19 285 Square feet or 1 792 Square metres
   Displacement factor (Displacement / loading): 96%
   Structure weight / hull surface area: 119 lbs/sq ft or 579 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,90
      - Longitudinal: 2,60
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent 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
       
        Misc weights:
       -  4x18'' TT + reload - 8 t
       -  Long range radio - 25 t
       -  Equipment and supply - 15 t

[olekit24]

Protected cruiser Cordoba

Cordoba, Spain Cruiser laid down 1905 (Engine 1900)

Displacement:
   4 997 t light; 5 182 t standard; 5 600 t normal; 5 934 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (383,83 ft / 382,19 ft) x 52,46 ft x (17,49 / 18,32 ft)
   (116,99 m / 116,49 m) x 15,99 m  x (5,33 / 5,58 m)

Armament:
      10 - 5,51" / 140 mm 45,0 cal guns - 84,44lbs / 38,30kg shells, 150 per gun
     Breech loading guns in deck mounts, 1895 Model
     8 x Single mounts on sides, evenly spread
     2 x Single mounts on centreline ends, evenly spread
      4 - 2,24" / 57,0 mm 40,0 cal guns - 5,42lbs / 2,46kg shells, 150 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 - 0,94" / 24,0 mm 45,0 cal guns - 0,44lbs / 0,20kg shells, 150 per gun
     Machine guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 868 lbs / 394 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2,36" / 60 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2,36" / 60 mm
   Forecastle: 2,36" / 60 mm  Quarter deck: 2,36" / 60 mm

   - Conning towers: Forward 2,36" / 60 mm, Aft 0,00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 16 997 ihp / 12 680 Kw = 22,10 kts
   Range 4 200nm at 10,00 kts
   Bunker at max displacement = 752 tons (100% coal)

Complement:
   323 - 420

Cost:
   £0,588 million / $2,352 million

Distribution of weights at normal displacement:
   Armament: 131 tons, 2,3%
      - Guns: 131 tons, 2,3%
   Armour: 701 tons, 12,5%
      - Armament: 64 tons, 1,1%
      - Armour Deck: 621 tons, 11,1%
      - Conning Tower: 16 tons, 0,3%
   Machinery: 2 656 tons, 47,4%
   Hull, fittings & equipment: 1 460 tons, 26,1%
   Fuel, ammunition & stores: 602 tons, 10,8%
   Miscellaneous weights: 50 tons, 0,9%
      - Hull above water: 50 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2 735 lbs / 1 241 Kg = 32,7 x 5,5 " / 140 mm shells or 0,6 torpedoes
   Stability (Unstable if below 1.00): 1,53
   Metacentric height 3,9 ft / 1,2 m
   Roll period: 11,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0,16
   Seaboat quality  (Average = 1.00): 1,51

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,559 / 0,566
   Length to Beam Ratio: 7,29 : 1
   'Natural speed' for length: 19,55 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 71
   Bow angle (Positive = bow angles forward): -1,00 degrees
   Stern overhang: 1,64 ft / 0,50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   23,00%,  15,75 ft / 4,80 m,  15,42 ft / 4,70 m
      - Forward deck:   30,00%,  15,09 ft / 4,60 m,  14,76 ft / 4,50 m
      - Aft deck:   24,00%,  14,76 ft / 4,50 m,  14,76 ft / 4,50 m
      - Quarter deck:   23,00%,  14,76 ft / 4,50 m,  15,09 ft / 4,60 m
      - Average freeboard:      15,03 ft / 4,58 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 161,8%
      - Above water (accommodation/working, high = better): 123,6%
   Waterplane Area: 14 111 Square feet or 1 311 Square metres
   Displacement factor (Displacement / loading): 87%
   Structure weight / hull surface area: 72 lbs/sq ft or 350 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,69
      - Overall: 1,00
   Cramped machinery, storage, compartmentation space
   Excellent 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
       
        Misc weights:
        - Long range radio - 25 t
        - 6x18" TT + reloads - 12 t
        -  Equipment and supply - 3 t

[olekit24]

Gunboat Type 6

GB-6, Spain Gunboat laid down 1904 (Engine 1900)

Displacement:
   1 000 t light; 1 050 t standard; 1 130 t normal; 1 195 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (227,17 ft / 226,38 ft) x 38,62 ft x (9,84 / 10,24 ft)
   (69,24 m / 69,00 m) x 11,77 m  x (3,00 / 3,12 m)

Armament:
      2 - 5,51" / 140 mm 45,0 cal guns - 84,44lbs / 38,30kg shells, 150 per gun
     Breech loading guns in deck mounts, 1895 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 4,13" / 105 mm 40,0 cal guns - 33,85lbs / 15,36kg shells, 150 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 - 2,24" / 57,0 mm 40,0 cal guns - 5,42lbs / 2,46kg shells, 150 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 326 lbs / 148 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2,36" / 60 mm         -               -
   2nd:   1,18" / 30 mm         -               -
   3rd:   0,20" / 5 mm         -               -

   - Conning towers: Forward 5,91" / 150 mm, Aft 0,00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3 453 ihp / 2 576 Kw = 18,10 kts
   Range 2 100nm at 10,00 kts
   Bunker at max displacement = 145 tons (100% coal)

Complement:
   96 - 126

Cost:
   £0,118 million / $0,472 million

Distribution of weights at normal displacement:
   Armament: 48 tons, 4,2%
      - Guns: 48 tons, 4,2%
   Armour: 39 tons, 3,5%
      - Armament: 26 tons, 2,3%
      - Conning Tower: 14 tons, 1,2%
   Machinery: 487 tons, 43,0%
   Hull, fittings & equipment: 394 tons, 34,9%
   Fuel, ammunition & stores: 130 tons, 11,5%
   Miscellaneous weights: 32 tons, 2,8%
      - Hull above water: 6 tons
      - On freeboard deck: 26 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     778 lbs / 353 Kg = 9,3 x 5,5 " / 140 mm shells or 0,4 torpedoes
   Stability (Unstable if below 1.00): 1,47
   Metacentric height 2,3 ft / 0,7 m
   Roll period: 10,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0,21
   Seaboat quality  (Average = 1.00): 1,59

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,460 / 0,467
   Length to Beam Ratio: 5,86 : 1
   'Natural speed' for length: 15,05 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,79 ft / 0,24 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00%,  13,78 ft / 4,20 m,  11,81 ft / 3,60 m
      - Forward deck:   30,00%,  11,81 ft / 3,60 m,  11,81 ft / 3,60 m
      - Aft deck:   35,00%,  11,81 ft / 3,60 m,  11,81 ft / 3,60 m
      - Quarter deck:   15,00%,  11,81 ft / 3,60 m,  12,80 ft / 3,90 m
      - Average freeboard:      12,04 ft / 3,67 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 153,3%
      - Above water (accommodation/working, high = better): 131,7%
   Waterplane Area: 5 622 Square feet or 522 Square metres
   Displacement factor (Displacement / loading): 87%
   Structure weight / hull surface area: 50 lbs/sq ft or 246 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,88
      - Longitudinal: 2,98
      - Overall: 1,00
   Cramped machinery, storage, compartmentation space
   Excellent 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

       Misc weights:
       -  Long range radio - 25 t
       -  76 mm cannon on field gun carriage x 2 - 1 t
       - Equipment and supply - 6 t 

[Logi]

Ship has extremely low Cb but doesn't fit the archetype of a DD/DDL, it's slow (only 18kn) and fat (5.86 LB). Range is very short and stability, seakeeping, and steadiness is excessive. The misc weight allocated to the 76mm field gun is also strange.

1) I don't believe Spain has that many rivers to defend beyond the reach of it's army.
2) The seakeeping is in far excess of what a river would dictate.
3) The draft is higher than I would expect from a river craft.

If it can't operate in a river, the 76mm field gun will do nothing. What exactly is the mission objective of the vessel and how does it fit into the Spanish naval doctrine?

[olekit24]

Logi, what's the river?

As you know, gunboat is a naval watercraft designed for the express purpose of carrying one or more guns to bombard coastal targets, as opposed to those military craft designed for naval warfare, or for ferrying troops or supplies.

My gunboat is a naval ship designed for protection of the metropolis and colonies coast, as well as patrols in the Straits, gulfs, bays and estuaries.

For the small Spanish Navy ships of this type is necessary: it is accessible, versatile, can perform a variety of tasks, including the conduct of hostilities in shallow water, preventing landing and landing self troops on the coast.
Gunboats may at some time replace the larger classes of ships, the construction of which had financial difficulties and lack of BP.

Since this is a small ship, and the rules specifically for this class is not described, I have used General: the block coefficient is not less than 0,38, stability not less and not more than 1. The boat is seaworthy, not turned over, stable on the wave. Given its coastal service, a low side and a length to width ratio is justified.

[Logi]

My gunboat is a naval ship designed for protection of the metropolis and colonies coast, as well as patrols in the Straits, gulfs, bays and estuaries.

It's quite big for it's merger task as it is double the size of a maximum DD. I'm saying you could probably save significant amounts of displacement by reduce the seakeeping, stability, and steadiness as they are in excess.

A destroyer could be designed to carry 3x15cm guns with 4000nm@10kn endurance while having a max practical (non-trial) speed of 27kn and a short-range wireless, all on 500 tons. Therefore your 1000t gunboat is much larger than I would expect for what it does. See Jeftge's designs - they are much smaller and still accomplish the task at hand.

You have 1.47 stability (far higher than the 1.08-1.10 on the designs of other folks), 100% steadiness (way over the 70% recommendation - which is already better than OTL ships), and 1.56 seakeeping which is higher than the the 1.50 breakoff and significantly higher than it would need in the sea zones it operates in.

In other words,

For the small Spanish Navy ships of this type is necessary: it is accessible, versatile, can perform a variety of tasks, including the conduct of hostilities in shallow water, preventing landing and landing self troops on the coast.
Gunboats may at some time replace the larger classes of ships, the construction of which had financial difficulties and lack of BP.

Your gunboats themselves are far too large for their capability. In addition, you mention landing self troops on the coast, but you don't have the misc weight for that. As you seem to have looked at the design guidelines, you'll note it says you need 1t per 4 troops on a short term (<1 day) embarkment. You have six tons for equipment and supply. Unless you plan to transport a maximum of 24 men per trip, the gunboat can not accomplish that mission. Not only would 24 men not make it in any opposed landing, simply transferring a brigade across the sea would require 521 trips, meaning it would take 2 to 2.5 years to transport a single brigade at max turnover rate (your ship needs time to dock and resupply as well as travel).

Given its coastal service, a low side and a length to width ratio is justified.

That would be true... if your Cb was significantly higher. Since you seem to be unaware, the typical Cb of a destroyer was on the order of 0.45, cruisers were at 0.51 -0.55, whilst battleships (and other slow craft) typically tend to be 0.58-0.67. Cb influences resistance and propulsion (SS doesn't account for this) so it ought to suit the speed of a vessel. At 18kn and 5.86 LB, your ship is plainly a slow ship but at the same time you have the Cb of a destroyer. Do you see how absurd that is?


So your design is confused about what it wants to do.
The mission entails extended loitering by the ship, but it has pitiful endurance (2100nm@10kn).
It's speed, though low at 18kn, is in far excessive of what the mission entails.
The number of rounds it carries for it's quick-firing guns is quite inadequate for loitering at only 150 rounds per.
The ship is excessively fine in Cb but fat in LB. In effect, your ship looks like cross between a triangular prism and a fully-on pyramid underwater.
The design's mission is to stay near coasts and bays (calm waters), but has seakeeping suited for the roughest portions of the open ocean.
It doesn't have enough weight to carry meaningful amount of troops, but still claims to be able to.
It's armament is quite heavy for a mission that involves bombarding colonial coasts - which are not stocked with coast defenses.

[olekit24]

okey, I understand you. I'll redesign that ship.

Heavy guns (for such kind of a ship) fre normal, if to see examples. Moreover, Most of that teople believed, that such ships can can join the battle with the larger enemy ships...

[Kaiser Kirk]

That would be true... if your Cb was significantly higher. Since you seem to be unaware, the typical Cb of a destroyer was on the order of 0.45, cruisers were at 0.51 -0.55, whilst battleships (and other slow craft) typically tend to be 0.58-0.67. Cb influences resistance and propulsion (SS doesn't account for this) so it ought to suit the speed of a vessel...

Logi, this is a subject that comes up over and over, and while I had seen that post before, I had forgotten it was around. Do you think you could place that link under the block coefficient part of Design guidelines ? 

[olekit24]

I have redone design of gunboat.

Gunboat Type 6

The main objective of this type of gunboats is to compensate for the lack of large ships (cruisers) in the Spanish Navy, to have the ability to perform the following tasks:
- defend seashore and gulfs/straights/bays/river mouthes
- ply between the island territories of the country  (Canareas - Spain - Baleares)
- serve in the spain colonoes
- fight at shallow waters/open sea against lignt ships/cruisers
- transport and land troops on the shore  (one batallion +2 guns)
- escort civilian ships
- perform raiding operations on the trade routes on the high seas and near the shore

GB-6, Spain Gunboat laid down 1904 (Engine 1900)

Displacement:
   1 000 t light; 1 069 t standard; 1 185 t normal; 1 278 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229,66 ft / 228,87 ft) x 31,30 ft x (10,43 / 11,08 ft)
   (70,00 m / 69,76 m) x 9,54 m  x (3,18 / 3,38 m)

Armament:
      2 - 5,51" / 140 mm 45,0 cal guns - 84,44lbs / 38,30kg shells, 200 per gun
     Breech loading guns in deck mounts, 1895 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 4,13" / 105 mm 40,0 cal guns - 33,84lbs / 15,35kg shells, 300 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 - 2,24" / 57,0 mm 40,0 cal guns - 5,42lbs / 2,46kg shells, 300 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 326 lbs / 148 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,57" / 40 mm         -               -
   2nd:   0,79" / 20 mm         -               -

   - Conning towers: Forward 5,91" / 150 mm, Aft 0,00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3 096 ihp / 2 310 Kw = 17,46 kts
   Range 3 000nm at 10,00 kts
   Bunker at max displacement = 210 tons (100% coal)

Complement:
   100 - 131

Cost:
   £0,116 million / $0,463 million

Distribution of weights at normal displacement:
   Armament: 48 tons, 4,0%
      - Guns: 48 tons, 4,0%
   Armour: 30 tons, 2,5%
      - Armament: 16 tons, 1,3%
      - Conning Tower: 14 tons, 1,2%
   Machinery: 470 tons, 39,7%
   Hull, fittings & equipment: 361 tons, 30,5%
   Fuel, ammunition & stores: 185 tons, 15,6%
   Miscellaneous weights: 91 tons, 7,7%
      - Hull above water: 16 tons
      - On freeboard deck: 75 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     801 lbs / 363 Kg = 9,6 x 5,5 " / 140 mm shells or 0,4 torpedoes
   Stability (Unstable if below 1.00): 1,35
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 10,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0,42
   Seaboat quality  (Average = 1.00): 1,97

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,555 / 0,564
   Length to Beam Ratio: 7,31 : 1
   'Natural speed' for length: 15,13 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,79 ft / 0,24 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00%,  13,78 ft / 4,20 m,  11,81 ft / 3,60 m
      - Forward deck:   30,00%,  11,81 ft / 3,60 m,  11,81 ft / 3,60 m
      - Aft deck:   35,00%,  11,81 ft / 3,60 m,  11,81 ft / 3,60 m
      - Quarter deck:   15,00%,  11,81 ft / 3,60 m,  12,80 ft / 3,90 m
      - Average freeboard:      12,04 ft / 3,67 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 144,4%
      - Above water (accommodation/working, high = better): 113,0%
   Waterplane Area: 5 023 Square feet or 467 Square metres
   Displacement factor (Displacement / loading): 96%
   Structure weight / hull surface area: 45 lbs/sq ft or 220 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,88
      - Longitudinal: 3,17
      - Overall: 1,00
   Cramped 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


        Misc weights:
        - short range radio - 10 t (100 miles quite enough)
        - troops, one batallion (300 persons) - 75 t
        - 76 mm cannon on field gun carriage x 2 - 1 t
        - Equipment and supply - 5 t

[olekit24]

Torpedo cruiser Destructor

Destructor, Spain Crucero de torpedo laid down 1904 (Engine 1900)

Displacement:
   1 000 t light; 1 036 t standard; 1 150 t normal; 1 241 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229,66 ft / 228,54 ft) x 29,43 ft x (11,19 / 11,88 ft)
   (70,00 m / 69,66 m) x 8,97 m  x (3,41 / 3,62 m)

Armament:
      3 - 4,13" / 105 mm 40,0 cal guns - 33,85lbs / 15,36kg shells, 190 per gun
     Breech loading guns in deck mounts, 1895 Model
     1 x Single mount on centreline, forward deck forward
     2 x Single mounts on centreline, aft deck aft
      2 - 2,24" / 57,0 mm 40,0 cal guns - 5,42lbs / 2,46kg shells, 300 per gun
     Breech loading guns in deck mounts, 1904 Model
     4 x Single mounts on sides, evenly spread
      4 - 1,46" / 37,0 mm 27,0 cal guns - 1,41lbs / 0,64kg shells, 300 per gun
     Breech loading guns in deck mounts, 1904 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 118 lbs / 54 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,98" / 25 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 6 221 ihp / 4 641 Kw = 20,90 kts
   Range 3 000nm at 10,00 kts
   Bunker at max displacement = 205 tons (100% coal)

Complement:
   98 - 128

Cost:
   £0,128 million / $0,513 million

Distribution of weights at normal displacement:
   Armament: 17 tons, 1,4%
      - Guns: 17 tons, 1,4%
   Armour: 7 tons, 0,6%
      - Armament: 7 tons, 0,6%
   Machinery: 630 tons, 54,8%
   Hull, fittings & equipment: 326 tons, 28,4%
   Fuel, ammunition & stores: 150 tons, 13,1%
   Miscellaneous weights: 20 tons, 1,7%
      - Hull above water: 16 tons
      - On freeboard deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     421 lbs / 191 Kg = 11,9 x 4,1 " / 105 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,35
   Metacentric height 1,4 ft / 0,4 m
   Roll period: 10,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0,15
   Seaboat quality  (Average = 1.00): 1,26

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,535 / 0,544
   Length to Beam Ratio: 7,77 : 1
   'Natural speed' for length: 15,12 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 79
   Bow angle (Positive = bow angles forward): -3,00 degrees
   Stern overhang: 1,12 ft / 0,34 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   25,00%,  15,65 ft / 4,77 m,  15,65 ft / 4,77 m
      - Forward deck:   30,00%,  9,71 ft / 2,96 m,  9,71 ft / 2,96 m
      - Aft deck:   25,00%,  9,71 ft / 2,96 m,  9,71 ft / 2,96 m
      - Quarter deck:   20,00%,  9,71 ft / 2,96 m,  9,71 ft / 2,96 m
      - Average freeboard:      11,20 ft / 3,41 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 183,3%
      - Above water (accommodation/working, high = better): 87,4%
   Waterplane Area: 4 628 Square feet or 430 Square metres
   Displacement factor (Displacement / loading): 57%
   Structure weight / hull surface area: 41 lbs/sq ft or 200 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,90
      - Longitudinal: 2,69
      - Overall: 1,00
   Cramped 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

          Misc weights:
-   3x18'' TT + reload – 6 t
-   2x18'' TT + reload – 4 t
-   Short range radio – 10 t

[snip]

What is the goal with the above design?

[olekit24]

Mainly the same as the previous: to compensate lack of large ships (cruisers) in the Spanish Navy. The other ones:

- defending shore and bases,
- colonial work,
- aviso tasks
- escort civilian ships
- perform raiding operations on the trade routes on the high seas and near the shore

[olekit24]

Have changed a little bit a design of battleship

Acorazado El Rey Alfonso XII

El Rey Alfonso XII, Spain Battleship laid down 1904 (Engine 1900)

Displacement:
   9 312 t light; 10 028 t standard; 10 758 t normal; 11 342 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (381,23 ft / 377,30 ft) x 68,86 ft x (22,97 / 24,01 ft)
   (116,20 m / 115,00 m) x 20,99 m  x (7,00 / 7,32 m)

Armament:
      4 - 12,01" / 305 mm 40,0 cal guns - 829,71lbs / 376,35kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     1 x Twin mount on centreline, forward deck forward
     1 x Twin mount on centreline, aft deck aft
      12 - 6,50" / 165 mm 45,0 cal guns - 138,23lbs / 62,70kg shells, 200 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     4 x Twin mounts on side ends, evenly spread
     2 x Twin mounts on sides, forward deck aft
      4 - 4,13" / 105 mm 40,0 cal guns - 33,85lbs / 15,36kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 hull mounts in casemates- Limited use in heavy seas
      4 - 4,13" / 105 mm 40,0 cal guns - 33,85lbs / 15,36kg shells, 250 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      6 - 1,46" / 37,0 mm 27,0 cal guns - 1,41lbs / 0,64kg shells, 350 per gun
     Quick firing guns in deck mounts, 1895 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 5 257 lbs / 2 384 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   8,62" / 219 mm   247,97 ft / 75,58 m   8,86 ft / 2,70 m
   Ends:   2,56" / 65 mm   129,33 ft / 39,42 m   8,86 ft / 2,70 m
   Upper:   2,56" / 65 mm   253,25 ft / 77,19 m   8,20 ft / 2,50 m
     Main Belt covers 101% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7,99" / 203 mm   1,97" / 50 mm      10,0" / 254 mm
   2nd:   5,51" / 140 mm         -         5,51" / 140 mm
   4th:   1,97" / 50 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 2,17" / 55 mm
   Forecastle: 1,77" / 45 mm  Quarter deck: 1,77" / 45 mm

   - Conning towers: Forward 8,62" / 219 mm, Aft 2,56" / 65 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 12 447 ihp / 9 286 Kw = 18,15 kts
   Range 5 000nm at 10,00 kts
   Bunker at max displacement = 1 314 tons (100% coal)

Complement:
   527 - 686

Cost:
   £1,042 million / $4,167 million

Distribution of weights at normal displacement:
   Armament: 939 tons, 8,7%
      - Guns: 939 tons, 8,7%
   Armour: 3 032 tons, 28,2%
      - Belts: 1 196 tons, 11,1%
      - Armament: 955 tons, 8,9%
      - Armour Deck: 763 tons, 7,1%
      - Conning Towers: 117 tons, 1,1%
   Machinery: 1 945 tons, 18,1%
   Hull, fittings & equipment: 3 356 tons, 31,2%
   Fuel, ammunition & stores: 1 446 tons, 13,4%
   Miscellaneous weights: 40 tons, 0,4%
      - Hull below water: 8 tons
      - Hull above water: 32 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11 441 lbs / 5 189 Kg = 13,2 x 12,0 " / 305 mm shells or 1,6 torpedoes
   Stability (Unstable if below 1.00): 1,24
   Metacentric height 4,2 ft / 1,3 m
   Roll period: 14,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 82 %
         - Recoil effect (Restricted arc if above 1.00): 0,80
   Seaboat quality  (Average = 1.00): 1,63

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,631 / 0,636
   Length to Beam Ratio: 5,48 : 1
   'Natural speed' for length: 19,42 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -5,00 degrees
   Stern overhang: -3,28 ft / -1,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00%,  18,70 ft / 5,70 m,  17,72 ft / 5,40 m
      - Forward deck:   30,00%,  17,39 ft / 5,30 m,  17,06 ft / 5,20 m
      - Aft deck:   35,00%,  17,06 ft / 5,20 m,  17,06 ft / 5,20 m
      - Quarter deck:   15,00%,  17,06 ft / 5,20 m,  17,06 ft / 5,20 m
      - Average freeboard:      17,32 ft / 5,28 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98,6%
      - Above water (accommodation/working, high = better): 121,1%
   Waterplane Area: 19 559 Square feet or 1 817 Square metres
   Displacement factor (Displacement / loading): 96%
   Structure weight / hull surface area: 132 lbs/sq ft or 646 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,89
      - Longitudinal: 2,73
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent 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

         Misc weights:
       -  4x18'' TT + reload - 8 t
       -  Long range radio - 25 t
       -  Equipment and supply - 7 t

[olekit24]

Crucero III Fila Tajo class (former gunboat Type G-6 design)

C3 Tajo, Spain Crucero III fila laid down 1904 (Engine 1900)

Displacement:
   1 200 t light; 1 263 t standard; 1 395 t normal; 1 501 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229,66 ft / 228,90 ft) x 31,17 ft x (12,07 / 12,81 ft)
   (70,00 m / 69,77 m) x 9,50 m  x (3,68 / 3,90 m)

Armament:
      2 - 5,51" / 140 mm 45,0 cal guns - 84,44lbs / 38,30kg shells, 180 per gun
     Breech loading guns in deck mounts, 1895 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 4,13" / 105 mm 40,0 cal guns - 33,85lbs / 15,35kg shells, 200 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      4 - 2,24" / 57,0 mm 40,0 cal guns - 5,42lbs / 2,46kg shells, 300 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 326 lbs / 148 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,79" / 20 mm         -               -
   2nd:   0,79" / 20 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5 984 ihp / 4 464 Kw = 20,00 kts
   Range 3 100nm at 10,00 kts
   Bunker at max displacement = 238 tons (100% coal)

Complement:
   113 - 148

Cost:
   £0,156 million / $0,623 million

Distribution of weights at normal displacement:
   Armament: 48 tons, 3,4%
      - Guns: 48 tons, 3,4%
   Armour: 12 tons, 0,8%
      - Armament: 12 tons, 0,8%
   Machinery: 706 tons, 50,6%
   Hull, fittings & equipment: 398 tons, 28,5%
   Fuel, ammunition & stores: 196 tons, 14,0%
   Miscellaneous weights: 36 tons, 2,6%
      - Hull above water: 11 tons
      - On freeboard deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     643 lbs / 292 Kg = 7,7 x 5,5 " / 140 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,55
   Metacentric height 1,8 ft / 0,6 m
   Roll period: 9,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 77 %
         - Recoil effect (Restricted arc if above 1.00): 0,30
   Seaboat quality  (Average = 1.00): 1,50

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,567 / 0,575
   Length to Beam Ratio: 7,34 : 1
   'Natural speed' for length: 15,13 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,75 ft / 0,23 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00%,  13,78 ft / 4,20 m,  12,47 ft / 3,80 m
      - Forward deck:   30,00%,  12,47 ft / 3,80 m,  12,47 ft / 3,80 m
      - Aft deck:   35,00%,  12,47 ft / 3,80 m,  12,47 ft / 3,80 m
      - Quarter deck:   15,00%,  12,47 ft / 3,80 m,  12,47 ft / 3,80 m
      - Average freeboard:      12,57 ft / 3,83 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 175,8%
      - Above water (accommodation/working, high = better): 106,3%
   Waterplane Area: 5 059 Square feet or 470 Square metres
   Displacement factor (Displacement / loading): 68%
   Structure weight / hull surface area: 46 lbs/sq ft or 225 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,87
      - Longitudinal: 3,70
      - Overall: 1,00
   Cramped 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
         
        Misc weights:
       - 1 marine landing platoon (100 men with armament and ammo) - 25 tons
       - 2 marine landing gun on wheeled carriage (76мм with 100 ammo) - 1 tonn
       - short range radio - 10 tons

[olekit24]

Spain have build 2 ships of Tajo class to the October 1904 and will lay down 2 more ships of the class in H1 1905. But summarising the experience, the initial design was improved a little bit. So next 4 3rd class cruisers will be build on improved design.

C3 Improved Tajo, Spain Crucero III fila laid down 1904 (Engine 1900)

Displacement:
   1 500 t light; 1 586 t standard; 1 738 t normal; 1 859 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229,66 ft / 228,81 ft) x 31,36 ft x (14,76 / 15,59 ft)
   (70,00 m / 69,74 m) x 9,56 m  x (4,50 / 4,75 m)

Armament:
      6 - 5,51" / 140 mm 45,0 cal guns - 80,47lbs / 36,50kg shells, 180 per gun
     Breech loading guns in deck mounts, 1895 Model
     2 x Single mounts on centreline ends, evenly spread
     4 x Single mounts on sides, evenly spread
      4 - 2,24" / 57,0 mm 40,0 cal guns - 5,42lbs / 2,46kg shells, 300 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 504 lbs / 229 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,79" / 20 mm         -               -
   2nd:   0,79" / 20 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 0,98" / 25 mm
   Forecastle: 0,59" / 15 mm  Quarter deck: 0,59" / 15 mm

   - Conning towers: Forward 1,97" / 50 mm, Aft 0,00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 6 896 ihp / 5 145 Kw = 20,00 kts
   Range 3 100nm at 10,00 kts
   Bunker at max displacement = 272 tons (100% coal)

Complement:
   133 - 174

Cost:
   £0,195 million / $0,781 million

Distribution of weights at normal displacement:
   Armament: 80 tons, 4,6%
      - Guns: 80 tons, 4,6%
   Armour: 111 tons, 6,4%
      - Armament: 20 tons, 1,1%
      - Armour Deck: 85 tons, 4,9%
      - Conning Tower: 6 tons, 0,4%
   Machinery: 841 tons, 48,4%
   Hull, fittings & equipment: 432 tons, 24,9%
   Fuel, ammunition & stores: 238 tons, 13,7%
   Miscellaneous weights: 36 tons, 2,1%
      - Hull above water: 11 tons
      - On freeboard deck: 25 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     705 lbs / 320 Kg = 8,4 x 5,5 " / 140 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,39
   Metacentric height 1,6 ft / 0,5 m
   Roll period: 10,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 86 %
         - Recoil effect (Restricted arc if above 1.00): 0,51
   Seaboat quality  (Average = 1.00): 1,42

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,574 / 0,581
   Length to Beam Ratio: 7,29 : 1
   'Natural speed' for length: 15,13 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 61
   Bow angle (Positive = bow angles forward): 0,40 degrees
   Stern overhang: 0,75 ft / 0,23 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00%,  14,44 ft / 4,40 m,  12,47 ft / 3,80 m
      - Forward deck:   30,00%,  12,47 ft / 3,80 m,  12,47 ft / 3,80 m
      - Aft deck:   30,00%,  12,47 ft / 3,80 m,  12,47 ft / 3,80 m
      - Quarter deck:   20,00%,  12,47 ft / 3,80 m,  12,47 ft / 3,80 m
      - Average freeboard:      12,62 ft / 3,85 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172,1%
      - Above water (accommodation/working, high = better): 91,5%
   Waterplane Area: 5 122 Square feet or 476 Square metres
   Displacement factor (Displacement / loading): 68%
   Structure weight / hull surface area: 49 lbs/sq ft or 240 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,85
      - Longitudinal: 4,05
      - Overall: 1,00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

         Misc weights:
       - 1 marine landing platoon (100 men with armament and ammo) - 25 tons
       - 2 marine landing gun on wheeled carriage (76мм with 100 ammo) - 1 tonn
       - short range radio - 10 tons