WesWorld

Reina Isabella, Iberia B laid down 1904

Displacement:
16,546 t light; 17,703 t standard; 19,328 t normal; 20,551 t full load
Loading submergence 933 tons/feet

Dimensions:
557.74 ft x 82.02 ft x 24.44 ft (normal load)
170.00 m x 25.00 m x 7.45 m

Armament:
4 - 12.60" / 320 mm guns (2 Main turrets x 2 guns)
8 - 9.45" / 240 mm guns (4 2nd turrets x 2 guns)
12 - 6.69" / 170 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
12 - 2.24" / 57 mm guns
Weight of broadside 9,240 lbs / 4,191 kg
5 - 18.9" / 480 mm submerged torpedo tubes

Armour:
Belt 12.60" / 320 mm, upper belt 8.66" / 220 mm, end belts 4.72" / 120 mm
Belts cover 90 % of normal area
Main turrets 12.60" / 320 mm, 2nd turrets 5.91" / 150 mm
QF casemates 3.15" / 80 mm, Light gun shields 1.57" / 40 mm
Armour deck 1.97" / 50 mm, Conning tower 11.81" / 300 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 15,339 ihp / 11,443 Kw = 18.00 kts
Range 8,000nm at 10.00 kts

Complement:
819 - 1,065

Cost:
£1.865 million / $7.461 million

Distribution of weights at normal displacement:
Armament: 1,155 tons, 6.0 %
Armour: 6,314 tons, 32.7 %
Belts: 3,217 tons, 16.6 %, Armament: 1,723 tons, 8.9 %, Armour Deck: 1,190 tons, 6.2 %
Conning Tower: 184 tons, 1.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 2,256 tons, 11.7 %
Hull, fittings & equipment: 6,722 tons, 34.8 %
Fuel, ammunition & stores: 2,782 tons, 14.4 %
Miscellaneous weights: 100 tons, 0.5 %

Metacentric height 4.8

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.15
Shellfire needed to sink: 19,032 lbs / 8,633 Kg = 19.0 x 12.6 " / 320 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2.3
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 60 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.48
Relative quality as seaboat: 1.08

Hull form characteristics:
Block coefficient: 0.605
Sharpness coefficient: 0.41
Hull speed coefficient 'M': 6.36
'Natural speed' for length: 23.62 kts
Power going to wave formation at top speed: 36 %
Trim: 55
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 88.5 %
Relative accommodation and working space: 99.7 %
(Average = 100%)
Displacement factor: 96 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.99
(Structure weight / hull surface area: 153 lbs / square foot or 749 Kg / square metre)
Relative longitudinal hull strength: 1.03
(for 13.12 ft / 4.00 m average freeboard, freeboard adjustment -4.15 ft)
Relative composite hull strength: 1.00

there was a fair bit of controversy in the admirality about these designs at the time - but in the end it was designed not to build them - because HMS dreadnought had a appeared on the scene ... Interestingly enough two were built for an unspecified customer and were never seen again. Also no records of that sale exist any more and nobody seems to remember it either ....

More ships sailing the way of the Kongos....