Thibault D'Aramitz Class Crusiers

[snip]

Two Ships:
IRS Thibault D'Aramitz
IRS Solène Girard

Thibault D'Aramitz, Imperial Roman Republic Cruiser laid down 1913

Displacement:
   8,500 t light; 8,791 t standard; 9,904 t normal; 10,795 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (617.69 ft / 606.96 ft) x 65.62 ft x (19.69 / 20.92 ft)
   (188.27 m / 185.00 m) x 20.00 m  x (6.00 / 6.38 m)

Armament:
      8 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 210 per gun
     Quick firing guns in deck and hoist mounts, 1909 Model
     4 x Twin mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      6 - 2.95" / 75.0 mm 45.0 cal guns - 12.99lbs / 5.89kg shells, 285 per gun
     Quick firing guns in deck mounts, 1902 Model
     6 x Single mounts on sides, evenly spread
      Weight of broadside 766 lbs / 347 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   394.52 ft / 120.25 m   9.84 ft / 3.00 m
   Ends:   1.18" / 30 mm   212.40 ft / 64.74 m   9.84 ft / 3.00 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.20" / 5 mm      0.98" / 25 mm

   - Protected deck - single deck:
   For and Aft decks: 2.36" / 60 mm
   Forecastle: 1.18" / 30 mm  Quarter deck: 1.18" / 30 mm

   - Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 64,000 shp / 47,744 Kw = 30.10 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 2,004 tons

Complement:
   496 - 645

Cost:
   £0.803 million / $3.213 million

Distribution of weights at normal displacement:
   Armament: 204 tons, 2.1 %
      - Guns: 204 tons, 2.1 %
   Armour: 1,463 tons, 14.8 %
      - Belts: 406 tons, 4.1 %
      - Armament: 14 tons, 0.1 %
      - Armour Deck: 1,008 tons, 10.2 %
      - Conning Tower: 35 tons, 0.4 %
   Machinery: 2,508 tons, 25.3 %
   Hull, fittings & equipment: 3,419 tons, 34.5 %
   Fuel, ammunition & stores: 1,404 tons, 14.2 %
   Miscellaneous weights: 905 tons, 9.1 %
      - Hull below water: 640 tons
      - Hull above water: 50 tons
      - On freeboard deck: 200 tons
      - Above deck: 15 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     12,961 lbs / 5,879 Kg = 154.8 x 5.5 " / 140 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.39
   Metacentric height 4.7 ft / 1.4 m
   Roll period: 12.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.13
   Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.442 / 0.453
   Length to Beam Ratio: 9.25 : 1
   'Natural speed' for length: 24.64 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 57
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 3.87 ft / 1.18 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  18.86 ft / 5.75 m,  16.40 ft / 5.00 m
      - Forward deck:   30.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Aft deck:   35.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Quarter deck:   15.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Average freeboard:      16.60 ft / 5.06 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98.5 %
      - Above water (accommodation/working, high = better): 159.0 %
   Waterplane Area: 25,241 Square feet or 2,345 Square metres
   Displacement factor (Displacement / loading): 120 %
   Structure weight / hull surface area: 95 lbs/sq ft or 462 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.02
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Misc Distribution
--Below Water (640t)
----627t Electric Drives
----10t Additional Pumps
----3t Construction Reserve
--Above Water (50t)
----15t Improved Crew Accommodations
----25t Improved Officer Accommodations
----10t Short Range Wireless
--On Deck (200t)
----21t 1912 Fire Control
----36t 12x530mm Torpedoes [One triple tube mount per side]
----25t Long Range Wireless
----50t Additional Stores
----20t Admiralty Accommodations
----20t Flag Facilities
----15t Marine Accommodations
----13t Construction Reserve
--Above Deck (15t)
----10t Improved Acquisition Structures
----5t Additional Searchlights

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By the end of 1923H1, both ships had been updated to 1918 Fire Control.