Imperial Roman Republic 1922H2

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And one more to go.

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Marathona, Roman Imperial Republic Flying Off Deck Conversion laid down 1908

Displacement:
   3,036 t light; 3,109 t standard; 3,292 t normal; 3,438 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (423.22 ft / 410.11 ft) x 42.65 ft x (13.94 / 14.39 ft)
   (129.00 m / 125.00 m) x 13.00 m  x (4.25 / 4.39 m)

Armament:
      2 - 3.94" / 100 mm 45.0 cal guns - 30.86lbs / 14.00kg shells, 200 per gun
     Quick firing guns in deck mount, 1909 Model
     1 x Twin mount on centreline, aft deck aft
      4 - 0.26" / 6.5 mm 110.0 cal guns - 0.01lbs / 0.00kg shells, 10,000 per gun
     Machine guns in deck mounts, 1911 Model
     4 x Single mounts on sides, aft evenly spread
      4 raised mounts
      Weight of broadside 62 lbs / 28 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm         -               -
   2nd:   0.20" / 5 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 34,000 shp / 25,364 Kw = 29.21 kts
   Range 3,500nm at 10.00 kts
   Bunker at max displacement = 329 tons

Complement:
   216 - 282

Cost:
   £0.337 million / $1.349 million

Distribution of weights at normal displacement:
   Armament: 9 tons, 0.3 %
      - Guns: 9 tons, 0.3 %
   Armour: 4 tons, 0.1 %
      - Armament: 4 tons, 0.1 %
   Machinery: 1,628 tons, 49.5 %
   Hull, fittings & equipment: 1,015 tons, 30.8 %
   Fuel, ammunition & stores: 256 tons, 7.8 %
   Miscellaneous weights: 380 tons, 11.5 %
      - Hull below water: 160 tons
      - Hull above water: 160 tons
      - On freeboard deck: 45 tons
      - Above deck: 15 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,445 lbs / 655 Kg = 47.4 x 3.9 " / 100 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.51
   Metacentric height 2.8 ft / 0.9 m
   Roll period: 10.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 53 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 1.09

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.472 / 0.478
   Length to Beam Ratio: 9.62 : 1
   'Natural speed' for length: 20.25 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 5.05 ft / 1.54 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  22.15 ft / 6.75 m,  22.15 ft / 6.75 m
      - Forward deck:   20.00 %,  22.15 ft / 6.75 m,  22.15 ft / 6.75 m
      - Aft deck:   45.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   15.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Average freeboard:      14.76 ft / 4.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 171.3 %
      - Above water (accommodation/working, high = better): 136.7 %
   Waterplane Area: 11,371 Square feet or 1,056 Square metres
   Displacement factor (Displacement / loading): 86 %
   Structure weight / hull surface area: 55 lbs/sq ft or 266 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 1.34
      - Overall: 0.90
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

Removed following items:
--4x140L50 guns
--2x75L50 guns
--All MISC items

Add following
--One twin 100mm gun mount
--Four single 6.5mm MG mounts
--Add 300t MISC Weight

Airgroup Calc
Waterplane: 1670.81
Max Airgroup: 25
Reduced for Flightdeck Cruiser status: 12

Max Weight 960
Adjusted for Conversion 1440
Avalible MISC Wieght : 320
Max Airgroup: 2 (320t)

Misc Weight Distribution
-Below Water (160t)
--160t Airgroup
-Above Water (160t)
--160t Airgroup
-On Deck (45t)
--30t Flying Off Deck Reinforcement
--1t 1912 Fire Control
--10t Short Range Wireless
--4t Construction Reserve
-Above Deck (15t)
--5t Additional Optical Spotting Equipment
--5t Flying Off Deck Managment Equipment
--5t Improved Signaling Equipment

Conversion Cost
Armaments (9t) BP - .009 $ - .018
Misc Wight   (300t) BP - .3 $ .3
Total Cost $0.318 .309BP

[snip]

So I made a mistake and forgot to add the $0.6 necessary as a baseline for Marathona's refit. The report has been updated with this.