Imperial Roman Navy: 1915-1919 Designs

[snip]

Ships go here.

[snip]

First out of the gate is a fun one. The successor to the Audax class battleships, Tonantis is likely to be an only child.

Tonantis, Imperial Roman Battleship laid down 1915

Displacement:
   34,094 t light; 36,315 t standard; 38,723 t normal; 40,649 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (685.71 ft / 672.57 ft) x 101.71 ft x (29.53 / 30.79 ft)
   (209.00 m / 205.00 m) x 31.00 m  x (9.00 / 9.38 m)

Armament:
      16 - 13.39" / 340 mm 45.0 cal guns - 1,209.46lbs / 548.60kg shells, 110 per gun
     Breech loading guns in turret on barbette mounts, 1915 Model
     3 x Quad mounts on centreline ends, majority forward
      2 raised mounts - superfiring
     1 x Quad mount on centreline, aft deck centre
      20 - 5.51" / 140 mm 45.0 cal guns - 85.98lbs / 39.00kg shells, 175 per gun
     Quick firing guns in casemate mounts, 1909 Model
     20 x Single mounts on sides, evenly spread
      16 - 3.94" / 100 mm 45.0 cal guns - 30.86lbs / 14.00kg shells, 350 per gun
     Quick firing guns in deck and hoist mounts, 1909 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      10 - 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
     10 x Single mounts on sides, evenly spread
      10 raised mounts
      Weight of broadside 21,565 lbs / 9,782 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   437.17 ft / 133.25 m   18.04 ft / 5.50 m
   Ends:   3.15" / 80 mm   235.37 ft / 71.74 m   8.20 ft / 2.50 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      2.36" / 60 mm   437.17 ft / 133.25 m   28.51 ft / 8.69 m
   Beam between torpedo bulkheads 86.94 ft / 26.50 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   17.3" / 440 mm   7.09" / 180 mm      11.0" / 280 mm
   2nd:   3.94" / 100 mm   3.94" / 100 mm      3.94" / 100 mm
   3rd:   0.98" / 25 mm         -               -
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2.95" / 75 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 1.38" / 35 mm

   - Conning towers: Forward 13.78" / 350 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 72,810 shp / 54,317 Kw = 24.50 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 4,334 tons

Complement:
   1,379 - 1,794

Cost:
   £5.109 million / $20.437 million

Distribution of weights at normal displacement:
   Armament: 3,760 tons, 9.7 %
      - Guns: 3,760 tons, 9.7 %
   Armour: 12,225 tons, 31.6 %
      - Belts: 4,582 tons, 11.8 %
      - Torpedo bulkhead: 1,089 tons, 2.8 %
      - Armament: 3,603 tons, 9.3 %
      - Armour Deck: 2,611 tons, 6.7 %
      - Conning Tower: 340 tons, 0.9 %
   Machinery: 2,758 tons, 7.1 %
   Hull, fittings & equipment: 13,786 tons, 35.6 %
   Fuel, ammunition & stores: 4,629 tons, 12.0 %
   Miscellaneous weights: 1,565 tons, 4.0 %
      - Hull below water: 850 tons
      - Hull above water: 200 tons
      - On freeboard deck: 475 tons
      - Above deck: 40 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     55,961 lbs / 25,383 Kg = 46.7 x 13.4 " / 340 mm shells or 8.4 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 7.5 ft / 2.3 m
   Roll period: 15.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.77
   Seaboat quality  (Average = 1.00): 1.36

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.671 / 0.676
   Length to Beam Ratio: 6.61 : 1
   'Natural speed' for length: 25.93 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 37
   Bow angle (Positive = bow angles forward): 15.00 degrees
   Stern overhang: 5.45 ft / 1.66 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  28.71 ft / 8.75 m,  28.71 ft / 8.75 m
      - Forward deck:   20.00 %,  28.71 ft / 8.75 m,  28.71 ft / 8.75 m
      - Aft deck:   45.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Quarter deck:   15.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Average freeboard:      23.29 ft / 7.10 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84.4 %
      - Above water (accommodation/working, high = better): 165.7 %
   Waterplane Area: 53,415 Square feet or 4,962 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 208 lbs/sq ft or 1,014 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.55
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

I haven't noodled out the Misc weight yet, but it would be similar to the Audax class in that regard.

[The Rock Doctor]

Powerful and sturdy.

I'd suggest quarterdeck armor could be heavier, perhaps.

[Jefgte]

The heaviest and most powerful in our Nverse   ???

Tonantis => 1st
Tiamat => 2nd

[snip]

I do complete development of a 410mmL45 in 1914H2, so Tonantis could mount that weapon as well. While having less total weight of broadside, the 437kg difference in individual shell weight means hits will count more. There are some other minor changes, like a thicker armored deck and torpedo bulkhead.

Tonantis (410), Imperial Roman Battleship laid down 1915

Displacement:
   34,240 t light; 36,315 t standard; 38,723 t normal; 40,649 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (685.71 ft / 672.57 ft) x 101.71 ft x (29.53 / 30.79 ft)
   (209.00 m / 205.00 m) x 31.00 m  x (9.00 / 9.38 m)

Armament:
      8 - 16.14" / 410 mm 45.0 cal guns - 2,120.84lbs / 962.00kg shells, 110 per gun
     Breech loading guns in turret on barbette mounts, 1915 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      20 - 5.51" / 140 mm 45.0 cal guns - 85.98lbs / 39.00kg shells, 175 per gun
     Quick firing guns in casemate mounts, 1909 Model
     20 x Single mounts on sides, evenly spread
      16 - 3.94" / 100 mm 45.0 cal guns - 30.86lbs / 14.00kg shells, 350 per gun
     Quick firing guns in deck and hoist mounts, 1909 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      10 - 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
     10 x Single mounts on sides, evenly spread
      10 raised mounts
      Weight of broadside 19,180 lbs / 8,700 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   437.17 ft / 133.25 m   18.04 ft / 5.50 m
   Ends:   3.15" / 80 mm   235.37 ft / 71.74 m   8.20 ft / 2.50 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      2.95" / 75 mm   437.17 ft / 133.25 m   29.53 ft / 9.00 m
   Beam between torpedo bulkheads 86.94 ft / 26.50 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   17.3" / 440 mm   7.09" / 180 mm      11.0" / 280 mm
   2nd:   3.94" / 100 mm   3.94" / 100 mm      3.94" / 100 mm
   3rd:   0.98" / 25 mm         -               -
   4th:   0.39" / 10 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 3.54" / 90 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 1.77" / 45 mm

   - Conning towers: Forward 13.78" / 350 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 74,000 shp / 55,204 Kw = 24.60 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 4,334 tons

Complement:
   1,379 - 1,794

Cost:
   £4.800 million / $19.201 million

Distribution of weights at normal displacement:
   Armament: 3,769 tons, 9.7 %
      - Guns: 3,769 tons, 9.7 %
   Armour: 12,997 tons, 33.6 %
      - Belts: 4,576 tons, 11.8 %
      - Torpedo bulkhead: 1,410 tons, 3.6 %
      - Armament: 3,543 tons, 9.1 %
      - Armour Deck: 3,128 tons, 8.1 %
      - Conning Tower: 340 tons, 0.9 %
   Machinery: 2,803 tons, 7.2 %
   Hull, fittings & equipment: 13,106 tons, 33.8 %
   Fuel, ammunition & stores: 4,483 tons, 11.6 %
   Miscellaneous weights: 1,565 tons, 4.0 %
      - Hull below water: 850 tons
      - Hull above water: 200 tons
      - On freeboard deck: 475 tons
      - Above deck: 40 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     60,084 lbs / 27,253 Kg = 28.6 x 16.1 " / 410 mm shells or 9.8 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 7.5 ft / 2.3 m
   Roll period: 15.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.71
   Seaboat quality  (Average = 1.00): 1.36

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.671 / 0.676
   Length to Beam Ratio: 6.61 : 1
   'Natural speed' for length: 25.93 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 37
   Bow angle (Positive = bow angles forward): 15.00 degrees
   Stern overhang: 5.45 ft / 1.66 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  28.71 ft / 8.75 m,  28.71 ft / 8.75 m
      - Forward deck:   20.00 %,  28.71 ft / 8.75 m,  28.71 ft / 8.75 m
      - Aft deck:   45.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Quarter deck:   15.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Average freeboard:      23.29 ft / 7.10 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 78.9 %
      - Above water (accommodation/working, high = better): 165.7 %
   Waterplane Area: 53,415 Square feet or 4,962 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 202 lbs/sq ft or 987 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.54
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

Quarter deck represents a 25mm uniform armored deck and 78t additional armor protection for stearing gear.

[Desertfox]

The first version was unique, the second one is just a boring Queen Elizabeth...

I think the Tiamats also still have the heaviest broadside, they are ridiculously overgunned.

[The Rock Doctor]

It would certainly be a powerful vessel.

I'm assuming the Union would scale up to a 400mm/45 piece, if I don't stick with the 350mm.

[snip]

Ya, the 410 version feels a little plain but the 340L45 is getting a little light for proper anti-capital work.  Im also digging that I can cram a 90mm deck on instead of 75mm, along with some better characteristics (hull space, flotation, recoil, etc)

[Kaiser Kirk]

The heaviest and most powerful in our Nverse   ???

Tonantis => 1st
Tiamat => 2nd

Well, Tonantis being laid down in 1915 will complete 1918, while all 4 of the Tiamats are operational.

As a bonus 15x 645kg=9,675kg
vs. 16x 548kg = 8,768kg 
So without moving into ROF issues, at least on a volley basis, Foxy is right.

Foxy - the Tiamats were designed in the pregame vacuum against what I was guessing others would be fielding, and were meant to beat those. Plus I was really tickled by the idea of five triples instead of the 4 triples of the Pennsylvania.

[TacCovert4]

All of this is definitely showing me the direction I will have to go in 1915 and 1916 as my next class of battleships are laid down.

[snip]

If I'm going to go for the 8x410, I can make the design a half-sister to the Audax. Not quite as good on some technical aspects as the previous design, but it does save a nice little chunk of change.

LBS-15C, Imperial Roman Republic Battleship laid down 1915

Displacement:
   29,500 t light; 31,475 t standard; 33,709 t normal; 35,496 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (633.20 ft / 623.36 ft) x 101.71 ft x (27.07 / 28.31 ft)
   (193.00 m / 190.00 m) x 31.00 m  x (8.25 / 8.63 m)

Armament:
      8 - 16.14" / 410 mm 45.0 cal guns - 2,120.84lbs / 962.00kg shells, 110 per gun
     Breech loading guns in turret on barbette mounts, 1915 Model
     3 x 2-gun mounts on centreline ends, majority forward
      1 raised mount - superfiring
     1 x 2-gun mount on centreline, aft deck forward
      20 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 175 per gun
     Quick firing guns in casemate mounts, 1909 Model
     20 x Single mounts on sides, evenly spread
      8 hull mounts in casemates- Limited use in heavy seas
      16 - 3.94" / 100 mm 45.0 cal guns - 30.86lbs / 14.00kg shells, 350 per gun
     Breech loading guns in deck and hoist mounts, 1906 Model
     8 x Twin mounts on sides, evenly spread
      8 raised mounts
      4 - 1.77" / 45.0 mm 45.0 cal guns - 3.31lbs / 1.50kg shells, 75 per gun
     Anti-air guns in deck mounts, 1910 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      10 - 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
     6 x Single mounts on sides, evenly spread
      6 raised mounts
     4 x Single mounts on side ends, evenly spread
      4 double raised mounts
      Weight of broadside 19,193 lbs / 8,706 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   405.18 ft / 123.50 m   18.04 ft / 5.50 m
   Ends:   3.15" / 80 mm   218.14 ft / 66.49 m   6.56 ft / 2.00 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      2.36" / 60 mm   405.18 ft / 123.50 m   27.07 ft / 8.25 m
   Beam between torpedo bulkheads 78.74 ft / 24.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   17.3" / 440 mm   7.09" / 180 mm      11.0" / 280 mm
   2nd:   3.94" / 100 mm   3.94" / 100 mm      3.94" / 100 mm
   3rd:   0.59" / 15 mm   0.20" / 5 mm      0.79" / 20 mm

   - Armoured deck - single deck:
   For and Aft decks: 2.95" / 75 mm

   - Conning towers: Forward 13.78" / 350 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 66,000 shp / 49,236 Kw = 24.13 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 4,021 tons

Complement:
   1,243 - 1,617

Cost:
   £4.534 million / $18.136 million

Distribution of weights at normal displacement:
   Armament: 3,834 tons, 11.4 %
      - Guns: 3,834 tons, 11.4 %
   Armour: 10,692 tons, 31.7 %
      - Belts: 4,263 tons, 12.6 %
      - Torpedo bulkhead: 959 tons, 2.8 %
      - Armament: 2,917 tons, 8.7 %
      - Armour Deck: 2,244 tons, 6.7 %
      - Conning Tower: 310 tons, 0.9 %
   Machinery: 2,500 tons, 7.4 %
   Hull, fittings & equipment: 11,003 tons, 32.6 %
   Fuel, ammunition & stores: 4,209 tons, 12.5 %
   Miscellaneous weights: 1,470 tons, 4.4 %
      - Hull below water: 750 tons
      - Hull above water: 200 tons
      - On freeboard deck: 480 tons
      - Above deck: 40 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     45,994 lbs / 20,863 Kg = 21.9 x 16.1 " / 410 mm shells or 7.3 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 8.1 ft / 2.5 m
   Roll period: 15.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 1.05

Hull form characteristics:
   Hull has a flush deck,
     an extended bulbous bow and a cruiser stern
   Block coefficient (normal/deep): 0.688 / 0.692
   Length to Beam Ratio: 6.13 : 1
   'Natural speed' for length: 24.97 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   Bow angle (Positive = bow angles forward): 15.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  18.86 ft / 5.75 m,  18.86 ft / 5.75 m
      - Forward deck:   30.00 %,  18.86 ft / 5.75 m,  18.86 ft / 5.75 m
      - Aft deck:   35.00 %,  18.86 ft / 5.75 m,  18.86 ft / 5.75 m
      - Quarter deck:   15.00 %,  18.86 ft / 5.75 m,  18.86 ft / 5.75 m
      - Average freeboard:      18.86 ft / 5.75 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 96.4 %
      - Above water (accommodation/working, high = better): 145.3 %
   Waterplane Area: 50,251 Square feet or 4,668 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 196 lbs/sq ft or 956 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.31
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

Misc Distribution
--Below Water (750t)
----625t Electric Drive
----50t Additional Pumps
----20t Enhanced Damage Control Equipment
----20t Enhanced Ventilation and Crew Comfort
----35t Construction Reserve
--Above Water(200t)
----50t Flag Facilities
----60t Improved Officer Accommodations
----60t Improved Crew Accommodations
----20t Short-Range Wireless (x2)
----10t Construction Reserve
--On Deck  (480t)
----385t 1912 Fire Control
----40t Flag Facilities
----20t Admiralty Accommodations
----25t Long-Range Wireless
----10t Construction Reserve
--Above Deck (40t)
----20t Improved Acquisition Structures
----10t Additional Searchlights
----10t Improved Signaling Equipment

[snip]

Looking at some cruiser designs, up first is an updated and lengthened version of the 1910 Parisus class. Some minor mods to the armor layout, and extension of range to the new standard of 7000@14knts.

FC-15A, Imperial Roman Republic Cruiser laid down 1915

Displacement:
   5,088 t light; 5,272 t standard; 6,030 t normal; 6,636 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (518.66 ft / 508.53 ft) x 47.57 ft x (16.40 / 17.68 ft)
   (158.09 m / 155.00 m) x 14.50 m  x (5.00 / 5.39 m)

Armament:
      7 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 175 per gun
     Quick firing guns in deck and hoist mounts, 1909 Model
     5 x Single mounts on centreline ends, majority aft
      3 raised mounts - superfiring
     2 x Single mounts on sides, forward deck centre
      4 - 2.95" / 75.0 mm 50.0 cal guns - 13.23lbs / 6.00kg shells, 150 per gun
     Quick firing guns in deck mounts, 1902 Model
     4 x Single mounts on sides, aft evenly spread
      4 raised mounts
      2 - 1.77" / 45.0 mm 45.0 cal guns - 2.80lbs / 1.27kg shells, 150 per gun
     Anti-air guns in deck mounts, 1910 Model
     2 x Single mounts on sides, forward deck centre
      2 raised mounts
      6 - 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
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 660 lbs / 300 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.36" / 60 mm   366.24 ft / 111.63 m   8.20 ft / 2.50 m
   Ends:   0.79" / 20 mm   142.26 ft / 43.36 m   8.20 ft / 2.50 m
     Main Belt covers 111 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.39" / 10 mm      0.98" / 25 mm
   2nd:   0.39" / 10 mm   0.20" / 5 mm            -
   3rd:   0.39" / 10 mm         -               -
   4th:   0.20" / 5 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 2.76" / 70 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 48,000 shp / 35,808 Kw = 29.56 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 1,364 tons

Complement:
   341 - 444

Cost:
   £0.741 million / $2.964 million

Distribution of weights at normal displacement:
   Armament: 220 tons, 3.6 %
      - Guns: 220 tons, 3.6 %
   Armour: 1,060 tons, 17.6 %
      - Belts: 319 tons, 5.3 %
      - Armament: 41 tons, 0.7 %
      - Armour Deck: 680 tons, 11.3 %
      - Conning Tower: 20 tons, 0.3 %
   Machinery: 1,818 tons, 30.2 %
   Hull, fittings & equipment: 1,815 tons, 30.1 %
   Fuel, ammunition & stores: 942 tons, 15.6 %
   Miscellaneous weights: 175 tons, 2.9 %
      - Hull below water: 5 tons
      - Hull above water: 50 tons
      - On freeboard deck: 105 tons
      - Above deck: 15 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,776 lbs / 2,620 Kg = 69.0 x 5.5 " / 140 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.25
   Metacentric height 2.5 ft / 0.8 m
   Roll period: 12.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.33
   Seaboat quality  (Average = 1.00): 1.13

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.532 / 0.543
   Length to Beam Ratio: 10.69 : 1
   'Natural speed' for length: 22.55 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 45
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 2.07 ft / 0.63 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   13.99 %,  22.15 ft / 6.75 m,  19.69 ft / 6.00 m
      - Forward deck:   50.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   22.02 %,  10.66 ft / 3.25 m,  10.66 ft / 3.25 m
      - Quarter deck:   13.99 %,  10.66 ft / 3.25 m,  10.66 ft / 3.25 m
      - Average freeboard:      16.57 ft / 5.05 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 110.8 %
      - Above water (accommodation/working, high = better): 156.9 %
   Waterplane Area: 16,599 Square feet or 1,542 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 71 lbs/sq ft or 347 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 1.11
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[snip]

And the follow on to the Thibault D'Aramitz. Geared more for trade protection/disruption than fleet screen.

LRC-15, Imperial Roman Republic Cruiser laid down 1915

Displacement:
   8,811 t light; 9,149 t standard; 10,200 t normal; 11,040 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (636.49 ft / 623.36 ft) x 65.62 ft x (19.69 / 20.82 ft)
   (194.00 m / 190.00 m) x 20.00 m  x (6.00 / 6.35 m)

Armament:
      6 - 7.09" / 180 mm 50.0 cal guns - 187.39lbs / 85.00kg shells, 175 per gun
     Breech loading guns in deck and hoist mounts, 1915 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     2 x Single mounts on sides, forward deck aft
      4 - 3.94" / 100 mm 50.0 cal guns - 30.86lbs / 14.00kg shells, 350 per gun
     Quick firing guns in deck and hoist mounts, 1906 Model
     2 x Twin mounts on sides, aft deck centre
      2 raised mounts
      2 - 1.77" / 45.0 mm 45.0 cal guns - 2.80lbs / 1.27kg shells, 150 per gun
     Anti-air guns in deck mounts, 1910 Model
     2 x Single mounts on sides, forward deck centre
      2 raised mounts
      6 - 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, evenly spread
      4 raised mounts
     2 x Single mounts on centreline ends, evenly spread
      2 double raised mounts
      Weight of broadside 1,253 lbs / 569 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.36" / 60 mm   405.18 ft / 123.50 m   9.84 ft / 3.00 m
   Ends:   0.79" / 20 mm   218.14 ft / 66.49 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   0.39" / 10 mm      1.97" / 50 mm
   2nd:   0.39" / 10 mm   0.20" / 5 mm      0.98" / 25 mm
   3rd:   0.39" / 10 mm         -               -
   4th:   0.20" / 5 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 2.76" / 70 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 64,000 shp / 47,744 Kw = 30.05 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 1,891 tons

Complement:
   506 - 659

Cost:
   £1.135 million / $4.540 million

Distribution of weights at normal displacement:
   Armament: 363 tons, 3.6 %
      - Guns: 363 tons, 3.6 %
   Armour: 1,556 tons, 15.3 %
      - Belts: 450 tons, 4.4 %
      - Armament: 42 tons, 0.4 %
      - Armour Deck: 1,037 tons, 10.2 %
      - Conning Tower: 28 tons, 0.3 %
   Machinery: 2,424 tons, 23.8 %
   Hull, fittings & equipment: 3,563 tons, 34.9 %
   Fuel, ammunition & stores: 1,389 tons, 13.6 %
   Miscellaneous weights: 905 tons, 8.9 %
      - 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):
     13,222 lbs / 5,998 Kg = 74.3 x 7.1 " / 180 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.33
   Metacentric height 4.4 ft / 1.3 m
   Roll period: 13.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.21
   Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.443 / 0.454
   Length to Beam Ratio: 9.50 : 1
   'Natural speed' for length: 24.97 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 6.27 ft / 1.91 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): 97.1 %
      - Above water (accommodation/working, high = better): 160.3 %
   Waterplane Area: 25,952 Square feet or 2,411 Square metres
   Displacement factor (Displacement / loading): 119 %
   Structure weight / hull surface area: 99 lbs/sq ft or 481 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.00
      - Longitudinal: 1.00
      - 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

[snip]

Once Grand Turk has been fully digested (and Im sure more to come), the following is felt as a reasonable response to the need to escort capital ships against small torpedo craft. Focus is on rate of fire, with the 100mm being selected over the 140 for this alone. While the round is felt to be a little light against destroyers, its still big enough to deal with MTBs. Armor is intended to be more of an anti-critical hit defence then boyancy protection and is viewed as adiquate against known destroyers.

Colbert, Imperial Roman Escort Cruiser laid down 1915

Displacement:
   6,000 t light; 6,209 t standard; 7,034 t normal; 7,694 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (492.13 ft / 492.13 ft) x 53.31 ft x (20.51 / 21.88 ft)
   (150.00 m / 150.00 m) x 16.25 m  x (6.25 / 6.67 m)

Armament:
      12 - 3.94" / 100 mm 45.0 cal guns - 30.86lbs / 14.00kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1906 Model
     4 x Twin mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
     2 x Twin mounts on centreline ends, evenly spread
      2 double raised mounts
      16 - 1.77" / 45.0 mm 50.0 cal guns - 3.31lbs / 1.50kg shells, 550 per gun
     Quick firing guns in deck mounts, 1910 Model
     16 x Single mounts on sides, evenly spread
      8 raised mounts
      2 - 1.77" / 45.0 mm 50.0 cal guns - 3.31lbs / 1.50kg shells, 200 per gun
     Anti-air guns in deck and hoist mounts, 1910 Model
     2 x Single mounts on sides, aft deck forward
      2 double raised mounts
      8 - 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 Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 430 lbs / 195 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.57" / 40 mm   348.33 ft / 106.17 m   9.84 ft / 3.00 m
   Ends:   0.59" / 15 mm   143.77 ft / 43.82 m   9.84 ft / 3.00 m
   Upper:   0.79" / 20 mm   348.33 ft / 106.17 m   9.02 ft / 2.75 m
     Main Belt covers 109 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.57" / 40 mm   0.39" / 10 mm      1.57" / 40 mm
   2nd:   0.39" / 10 mm   0.20" / 5 mm            -
   3rd:   0.39" / 10 mm   0.20" / 5 mm      0.39" / 10 mm

   - Box over machinery & magazines:
   2.36" / 60 mm

   - Conning towers: Forward 2.76" / 70 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 56,000 shp / 41,776 Kw = 30.00 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 1,485 tons

Complement:
   383 - 499

Cost:
   £0.795 million / $3.181 million

Distribution of weights at normal displacement:
   Armament: 97 tons, 1.4 %
      - Guns: 97 tons, 1.4 %
   Armour: 1,399 tons, 19.9 %
      - Belts: 351 tons, 5.0 %
      - Armament: 46 tons, 0.7 %
      - Armour Deck: 980 tons, 13.9 %
      - Conning Tower: 22 tons, 0.3 %
   Machinery: 2,121 tons, 30.2 %
   Hull, fittings & equipment: 1,983 tons, 28.2 %
   Fuel, ammunition & stores: 1,034 tons, 14.7 %
   Miscellaneous weights: 400 tons, 5.7 %
      - Hull below water: 100 tons
      - Hull above water: 100 tons
      - On freeboard deck: 100 tons
      - Above deck: 100 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,468 lbs / 2,934 Kg = 212.0 x 3.9 " / 100 mm shells or 1.2 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 3.1 ft / 0.9 m
   Roll period: 12.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.15
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.458 / 0.469
   Length to Beam Ratio: 9.23 : 1
   'Natural speed' for length: 22.18 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17.22 %,  18.04 ft / 5.50 m,  15.58 ft / 4.75 m
      - Forward deck:   30.00 %,  15.58 ft / 4.75 m,  15.58 ft / 4.75 m
      - Aft deck:   40.78 %,  15.58 ft / 4.75 m,  15.58 ft / 4.75 m
      - Quarter deck:   12.00 %,  15.58 ft / 4.75 m,  15.58 ft / 4.75 m
      - Average freeboard:      15.75 ft / 4.80 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 107.0 %
      - Above water (accommodation/working, high = better): 130.5 %
   Waterplane Area: 16,841 Square feet or 1,565 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 74 lbs/sq ft or 361 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 1.26
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

Misc weight to be noodled a bit, but will contain Fire Control, Torpedo, Night fighting equipment.

[The Rock Doctor]

For its size and hull strength, I admit I find it a bit underwhelming.

Is the main battery in a A-B-Cs/Xs-Y-Z arrangement?