As the CT does not allow cruiser guns bigger than 6" the 170 mm on the Hasta Luegos is obviously too big. The Armada first thought about replacing them with twin 6" turrets but considered that a waste of space and ended up deciding on a triple 130 mm mount on the rationale that the SCs were there to operate with te destroyers anyway.
Hasta Luego, Iberia Scout Cruiser laid down 1919
Displacement:
4,241 t light; 4,369 t standard; 4,567 t normal; 4,707 t full load
Loading submergence 391 tons/feet
Dimensions:
508.53 ft x 45.28 ft x 15.09 ft (normal load)
155.00 m x 13.80 m x 4.60 m
Armament:
6 - 5.12" / 130 mm guns (2 Main turrets x 3 guns)
6 - 2.24" / 57 mm AA guns
4 - 0.53" / 14 mm guns
Weight of broadside 436 lbs / 198 kg
8 - 23.6" / 600 mm above water torpedoes
Armour:
Belt 1.97" / 50 mm, ends unarmoured
Belts cover 147 % of normal area
Main turrets 1.97" / 50 mm, AA gun shields 0.79" / 20 mm
Armour deck 1.18" / 30 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 53,509 shp / 39,918 Kw = 32.00 kts
Range 5,000nm at 10.00 kts
Complement:
277 - 361
Cost:
£1.001 million / $4.002 million
Distribution of weights at normal displacement:
Armament: 55 tons, 1.2 %
Armour: 685 tons, 15.0 %
Belts: 313 tons, 6.9 %, Armament: 73 tons, 1.6 %, Armour Deck: 299 tons, 6.5 %
Conning Tower: 0 tons, 0.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 1,888 tons, 41.3 %
Hull, fittings & equipment: 1,614 tons, 35.3 %
Fuel, ammunition & stores: 326 tons, 7.1 %
Miscellaneous weights: 0 tons, 0.0 %
Metacentric height 2.3
Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.25
Shellfire needed to sink: 2,591 lbs / 1,175 Kg = 38.7 x 5.1 " / 130 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0.6
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 71 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.28
Relative quality as seaboat: 1.17
Hull form characteristics:
Block coefficient: 0.460
Sharpness coefficient: 0.31
Hull speed coefficient 'M': 9.37
'Natural speed' for length: 22.55 kts
Power going to wave formation at top speed: 56 %
Trim: 61
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)
Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 143.0 %
Relative accommodation and working space: 107.6 %
(Average = 100%)
Displacement factor: 93 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.84
(Structure weight / hull surface area: 67 lbs / square foot or 327 Kg / square metre)
Relative longitudinal hull strength: 1.07
(for 16.40 ft / 5.00 m average freeboard, freeboard adjustment 3.46 ft)
Relative composite hull strength: 0.86
The ships will be comissioned this way.
here is the gun:
130 mm/60 cruiser gun
Caliber = 13.0 cm (5.1 inch)
Shell weight = 40 kg (88 lbs)
Muzzle velocity = 862 m/s (2827 fps)
Relative ballistic performance: 1.00
Muzzle energy = 14.853 megajoules = 5473.2 foot-tons
Relative muzzle energy: 1.28
Barrel length: 60 calibers
Elevation Range Time Velocity Fall Angle
2.5 deg 5200 meters 7.2 sec 613 m/s 3.1 deg
5.0 deg 8700 meters 13.7 sec 490 m/s 7.3 deg
7.5 deg 11300 meters 19.6 sec 420 m/s 12.1 deg
10.0 deg 13400 meters 25.1 sec 377 m/s 17.1 deg
12.5 deg 15200 meters 30.2 sec 350 m/s 22.2 deg
15.0 deg 16700 meters 35.2 sec 333 m/s 27.3 deg
20.0 deg 19200 meters 44.5 sec 317 m/s 36.7 deg
25.0 deg 21200 meters 53.2 sec 316 m/s 44.5 deg
30.0 deg 22700 meters 61.4 sec 323 m/s 50.9 deg
35.0 deg 23900 meters 69.3 sec 333 m/s 56.2 deg
40.0 deg 24600 meters 76.8 sec 344 m/s 60.5 deg
45.0 deg 24800 meters 83.9 sec 356 m/s 64.2 deg
50.0 deg 24600 meters 90.5 sec 367 m/s 67.3 deg
Armor Penetration - Vertical Belt Armor
(Relative armor quality, 1.00)
Maximum penetration: 31.17 cm
Elevation Range Belt Deck
1.0 deg 2500 meters 25 cm
2.4 deg 5000 meters 20 cm
4.7 deg 8300 meters 15 cm
8.0 deg 11800 meters ... 2 cm
9.6 deg 13100 meters 10 cm
19.4 deg 18900 meters ... 4 cm
26.6 deg 21700 meters 5 cm
30.0 deg 22700 meters ... 6 cm
42.7 deg 24800 meters ... 8 cm
Maximum range = 24800 meters at 45.0 deg elevation
cheers
Bernhard