Imperial Roman Republic 1928H1

[snip]

Quick summary
--Finish BP 41
--Start BP 42
--Start following techs
---1928 Aircraft Carrier
---1928 Destroyer
---1928 Torpedo
--More light craft build
--Start another flight of 2x HFD-26 and 4x GFD-26
--Finish second Mediolanum class cruiser
--Frigate IRS Gloriosum completes
--IRS Domitor begins refit
--IRS Tullius Leofric AA update
--Remaining five Rainier Marion class destroyers refit
--One each Land, Air, Deployment point

[snip]

Sometime in 1928, Tullius Leofric will be taken in hand for an AA modernization. Functionally just replacement of old model AA guns with current generation.

Tullius Leofric (1928), Imperial Roman Republic Battlecruiser laid down 1917

Displacement:
   41,070 t light; 43,027 t standard; 45,874 t normal; 48,151 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (803.79 ft / 787.40 ft) x 108.27 ft x (29.53 / 30.76 ft)
   (245.00 m / 240.00 m) x 33.00 m  x (9.00 / 9.38 m)

Armament:
      12 - 13.39" / 340 mm 45.0 cal guns - 1,212.54lbs / 550.00kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1909 Model
     2 x Quad mounts on centreline, forward deck forward
      1 raised mount - superfiring
     1 x Quad mount on centreline, forward deck aft
      20 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 200 per gun
     Quick firing guns in casemate mounts, 1909 Model
     12 x Single mounts on sides, forward evenly spread
     8 x Single mounts on sides, aft evenly spread
      2 - 3.54" / 90.0 mm 50.0 cal guns - 20.94lbs / 9.50kg shells, 294 per gun
     Anti-air guns in deck and hoist mounts, 1926 Model
     2 x Single mounts on sides, aft deck centre
      2 raised mounts
      16 - 1.10" / 28.0 mm 55.0 cal guns - 0.72lbs / 0.33kg shells, 5,000 per gun
     Anti-air guns in deck mounts, 1926 Model
     4 x Quad mounts on sides, evenly spread
      4 raised mounts
      10 - 0.30" / 7.5 mm 66.7 cal guns - 0.01lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1925 Model
     10 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 16,324 lbs / 7,404 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.4" / 340 mm   472.11 ft / 143.90 m   18.04 ft / 5.50 m
   Ends:   1.97" / 50 mm   315.26 ft / 96.09 m   13.12 ft / 4.00 m
     Main Belt covers 92 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      2.36" / 60 mm   472.11 ft / 143.90 m   31.17 ft / 9.50 m
   Beam between torpedo bulkheads 85.30 ft / 26.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   16.5" / 420 mm   7.09" / 180 mm      13.4" / 340 mm
   2nd:   3.94" / 100 mm   1.97" / 50 mm      3.94" / 100 mm
   3rd:   0.20" / 5 mm         -         0.98" / 25 mm

   - Armoured deck - multiple decks:
   For and Aft decks: 3.35" / 85 mm
   Forecastle: 1.38" / 35 mm  Quarter deck: 1.38" / 35 mm

   - Conning towers: Forward 13.39" / 340 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 148,000 shp / 110,408 Kw = 29.13 kts
   Range 8,000nm at 14.00 kts
   Bunker at max displacement = 5,124 tons

Complement:
   1,566 - 2,037

Cost:
   £6.658 million / $26.633 million

Distribution of weights at normal displacement:
   Armament: 2,898 tons, 6.3 %
      - Guns: 2,898 tons, 6.3 %
   Armour: 13,736 tons, 29.9 %
      - Belts: 5,296 tons, 11.5 %
      - Torpedo bulkhead: 1,286 tons, 2.8 %
      - Armament: 3,296 tons, 7.2 %
      - Armour Deck: 3,489 tons, 7.6 %
      - Conning Tower: 370 tons, 0.8 %
   Machinery: 5,425 tons, 11.8 %
   Hull, fittings & equipment: 16,576 tons, 36.1 %
   Fuel, ammunition & stores: 4,804 tons, 10.5 %
   Miscellaneous weights: 2,435 tons, 5.3 %
      - Hull below water: 1,620 tons
      - Hull above water: 150 tons
      - On freeboard deck: 615 tons
      - Above deck: 50 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     75,253 lbs / 34,134 Kg = 62.8 x 13.4 " / 340 mm shells or 10.9 torpedoes
   Stability (Unstable if below 1.00): 1.21
   Metacentric height 8.0 ft / 2.4 m
   Roll period: 16.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.64
   Seaboat quality  (Average = 1.00): 1.31

Hull form characteristics:
   Hull has low quarterdeck ,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.638 / 0.643
   Length to Beam Ratio: 7.27 : 1
   'Natural speed' for length: 28.06 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 53
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 5.64 ft / 1.72 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   21.00 %,  29.53 ft / 9.00 m,  28.71 ft / 8.75 m
      - Forward deck:   35.00 %,  28.71 ft / 8.75 m,  28.71 ft / 8.75 m
      - Aft deck:   24.96 %,  28.71 ft / 8.75 m,  28.71 ft / 8.75 m
      - Quarter deck:   19.04 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Average freeboard:      27.06 ft / 8.25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 91.7 %
      - Above water (accommodation/working, high = better): 225.5 %
   Waterplane Area: 64,581 Square feet or 6,000 Square metres
   Displacement factor (Displacement / loading): 112 %
   Structure weight / hull surface area: 197 lbs/sq ft or 964 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.43
      - 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 Weight Distribution
-Below Water (1620t)
--1360t Electric Drives
--200t Additional Pumps
--45t Additional Damage Control Equipment
--15t Construction Reserve
-Above Water (150t)
--40t Improved Officer Accommodations
--40t Improved Crew Accomodations
--20t Additional Damage Control Equipment
--20t Enhanced Ventilation and Crew Comfort
--20t Short-Range Wireless (x2)
--10t Construction Reserve
-On Deck (615t)
--290t 1918 Fire Control
--90t Flag Facilities
--40t Admiralty Accommodations
--50t Long Range Wireless (x2)
--20t Enhanced Ventilation and Crew Comfort
--40t Night Fighting Equipment
--50t Additional Damage Control Equipment
--25t Huelsmeyre Equipment
--10t Construction Reserve
-Above Deck (50t)
--20t Additional Optical Spotting Equipment
--15t Night Fighting Equipment
--15t Improved Signaling Equipment

Turrets arranged A(B)[SS]Q[ss] with B superfiring A. Secondaries are grouped between B and Q (Side Fore Deck), or aft of Q (Side Aft Deck)

Armored deck is a 70mm Main deck with a 15mm splinter deck, 35mm uniform deck over the ends.

Cruise Speeds/SpringSharp Range/True Range (Electric Drive bonus)
10knts/16340nm/18791nm
14knts/8000nm/10000nm
20knts/3438nm/3953nm
25knts/1901mn/2186nm
29knts/1242nm/1428nm

Time at Top Speed: 49.24 Hours
Fastest Speed From Brest to Havana (3943nm):20knts for 197.15h transit

Cost: .0019 BP and Cash
--19t New Armament