WesWorld

(Having read the refit rules, I believe that deck-mounted guns, sans barbette, are fair game for replacing in refits...)

Having studied the recent Indian/Danish conflict, and having taken special note of the fact that the Danish DD that was crippled was the only ship lacking anti-aircraft armament in the Danish formation, the Marina de Filipinas has decided to move up refitting the ex-Italian light cruiser Cíudad Rodrigo.

Modifications are:
-increased thickness of main gun shelds
-installation of shields on 57mm casemate battery
-removal of bow 57mm guns
-replacement of two midships 6" mountings with twin 100mm AA.

Materials permitting, the refit will start in late Q3/25.

(compare to the original stats on the Infrastructure Board.)

PRS Cíudad Rodrigo, ex-Italian light cruiser, laid down 1913, refit 1925

Length, 427 ft x Beam, 42.7 ft x Depth, 19.0 ft
130.00 m x 13.00 m x 5.80 m
4747 tons normal displacement (4453 tons standard)

Main battery: 8 x 6.00-inch / 152mm 45-cal (2 casemated)
Secondary battery: 4 x 3.94-inch / 100mm
QF battery: 8 x 2.24-inch / 57mm (casemated)
Light battery: 8 x 0.54-inch / 13.7mm

Weight of broadside: 1032 lbs

4 TT, 18.0" (submerged)

Main belt, 3.94 inches; bow and stern, 2.76 inches
Armor deck, average 1.18 inches
C.T., 3.94 inches

Battery armor:
Main, 1.57" shields / secondary, 1.18" shields
QF, 0.79" shields

Maximum speed for 35341 shp = 28.00 knots
Approximate cruising radius, 6000 nm / 10 kts

Typical complement: 286-372


Estimated cost, $1.971 million (£493,000)

Remarks:

Oil firing.

Relative extent of belt armor, 132 percent of 'typical' coverage.

Magazines and engineering spaces are cramped, with poor
watertight subdivision.

Main deck QF guns subject to being washed down in a seaway.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 129 tons = 3 pct
Armor, total ..................... 924 tons = 19 pct

Belt 621 tons = 13 pct
Deck 243 tons = 5 pct
C.T. 24 tons = 1 pct
Armament 37 tons = 1 pct

Machinery ........................ 1385 tons = 29 pct
Hull and fittings; equipment ..... 1809 tons = 38 pct
Fuel, ammunition, stores ......... 476 tons = 10 pct
Miscellaneous weights ............ 25 tons = 1 pct
-----
4747 tons = 100 pct

Estimated metacentric height, 1.8 ft

Displacement summary:

Light ship: 4272 tons
Standard displacement: 4453 tons
Normal service: 4747 tons
Full load: 4964 tons

Loading submergence 318 tons/foot

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Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.16

Shellfire needed to sink: 3324 lbs = 30.8 x 6.0-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.7
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 57 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.36

Relative quality as a seaboat: 1.14

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.48
Sharpness coefficient: 0.32
Hull speed coefficient 'M' = 7.76
'Natural speed' for length = 20.7 knots
Power going to wave formation
at top speed: 57 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 126 percent

Relative accommodation and working space: 119 percent


Displacement factor: 100 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.02
(Structure weight per square
foot of hull surface: 86 lbs)

Relative longitudinal hull strength: 1.85
(for 16.0 ft average freeboard;
freeboard adjustment +3.0 ft)

Relative composite hull strength: 1.09

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[Machine-readable parameters: Spring Style v. 1.2.1]

426.51 x 42.65 x 19.03; 16.00 -- Dimensions
0.48 -- Block coefficient
1913 -- Year laid down
28.00 / 6000 / 10.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
25 tons -- Miscellaneous weights
++++++++++
8 x 6.00; 0 -- Main battery; turrets
Gun-shields
:
4 x 3.94; 0 -- Secondary battery; turrets
Gun-shields
:
8 x 2.24 -- Tertiary (QF/AA) battery
Gun-shields
Main deck battery
:
8 x 0.54 -- Fourth (light) battery
4 / 4 / 18.00 -- TT / submerged / size
++++++++++
3.94 / 2.76 / 0.00 / 0.00; 132 -- Belt armor; relative extent
1.18 / 3.94 -- Deck / CT
1.57 / 1.18 / 0.79 / 0.00 -- Battery armor


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