Imperial Roman Navy: 1915-1919 Designs

[snip]

Atlanta layout. The size is more driven by the range requirements and the length necessary to accommodate all the centerline mounts. I could play with thinning the armor and upping the speed to lean more anti-small things, but Im not sure how much smaller I can get away with making the hull as its already getting kinda fine.

[The Rock Doctor]

Ah, okay, I overlooked the double-superfiring note.

[Kaiser Kirk]

I would be more of a fan of 140mm instead of 100.
Just because the foe was MTBs this time doesn't mean it won't be TBs or DDs next time.
plus if there are cruiser sized foes, the 100mm will be of limited use.
Armament is surprisingly "cheap" tonnage wise. 
I'd advocate reducing speed to pay for it, that's why my Ranger class is 29knots, but you like speed.

I want to emphasis something from the February Gun Research changes: 
The bore of the gun, in Cm, equals the maximum effective spotting distance of those shells in Km.
Granted, at night, longer ranges are not useful, and even when the BBs could fire at 14km, they had a really low 'to hit'.

The 45mm size did do well at Cheju-Do, so I can see why they get fitted.
The other side of that is they did well only at the closest of ranges, they really are ineffectual beyond ~5000m/3nm.

I think the 60mm box is a bit of overkill, you have a belt already, a thin protective deck vs. splinters would finish it.

[snip]

Tweeked a bit to get the speed up to almost 32knts

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)
   (502.57 ft / 492.13 ft) x 53.31 ft x (20.51 / 21.88 ft)
   (153.18 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:   1.38" / 35 mm   430.41 ft / 131.19 m   11.48 ft / 3.50 m
   Ends:   0.79" / 20 mm     61.68 ft / 18.80 m   9.84 ft / 3.00 m
     Main Belt covers 135 % 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

   - Protected deck - single deck:
   For and Aft decks: 0.98" / 25 mm

   - Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 72,000 shp / 53,712 Kw = 31.90 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 1,485 tons

Complement:
   383 - 499

Cost:
   £0.919 million / $3.675 million

Distribution of weights at normal displacement:
   Armament: 97 tons, 1.4 %
      - Guns: 97 tons, 1.4 %
   Armour: 643 tons, 9.1 %
      - Belts: 285 tons, 4.0 %
      - Armament: 46 tons, 0.7 %
      - Armour Deck: 297 tons, 4.2 %
      - Conning Tower: 16 tons, 0.2 %
   Machinery: 2,727 tons, 38.8 %
   Hull, fittings & equipment: 2,132 tons, 30.3 %
   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):
     4,520 lbs / 2,050 Kg = 148.1 x 3.9 " / 100 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.34
   Metacentric height 3.3 ft / 1.0 m
   Roll period: 12.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.15
   Seaboat quality  (Average = 1.00): 1.01

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: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 2.99 ft / 0.91 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   7.54 %,  20.51 ft / 6.25 m,  19.69 ft / 6.00 m
      - Forward deck:   50.00 %,  19.69 ft / 6.00 m,  17.22 ft / 5.25 m
      - Aft deck:   37.46 %,  17.22 ft / 5.25 m,  17.22 ft / 5.25 m
      - Quarter deck:   5.00 %,  17.22 ft / 5.25 m,  17.22 ft / 5.25 m
      - Average freeboard:      18.05 ft / 5.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 134.5 %
      - Above water (accommodation/working, high = better): 150.2 %
   Waterplane Area: 16,841 Square feet or 1,565 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 76 lbs/sq ft or 373 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 1.55
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

With the additional speed, it can also function as a heavy destroyer leader. This is not a ship ment to replace the more conventional 140mm armed cruiser but as an extension of the secondary battery of the fleet. I'm thinking only 1-2 of them get built (depending a lot on what state my battleline is in). Being able to have a ship or two like this as part of the screen in a more confined environment is going to put more distance between Roman capital ships and smaller torpedo craft, should the capital units need to be committed against that sort of target. Now with the speed, its more capable of working as heavy backup to smaller, faster destroyers.

[Kaiser Kirk]

Tweeked a bit to get the speed up to almost 32knts

Heh, I advocated reducing speed, so you increased it... well exploring different philosophies is part of the fun of the sim.

Technically your hullspace is over 133% now, so there's a sliver of something sticking up above the protected deck
Your BC on these seem very low.

LRC-15 resembles some of my Raider Cruisers....but a 0.44 BC on a 9000 ton ship? Seems a bit low. Though it has single mount 180mm guns on a 20m beam, so that works.
Why not just have a (much) narrower beam ? There's no TDS, so nothing gobbling internal volume.
Not sure what the 4x 100mm is for, that's 2 per side.

[snip]

If 133% is the "limit", shaveing 2000SHP off gets me back under and allows for some additional tweeks to armor without a crazy impact to top speed.

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)
   (502.57 ft / 492.13 ft) x 53.31 ft x (20.51 / 21.88 ft)
   (153.18 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:   1.38" / 35 mm   419.39 ft / 127.83 m   13.12 ft / 4.00 m
   Ends:   0.79" / 20 mm     72.70 ft / 22.16 m   9.84 ft / 3.00 m
   Upper:   0.79" / 20 mm   419.39 ft / 127.83 m   9.02 ft / 2.75 m
     Main Belt covers 131 % 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

   - Protected deck - single deck:
   For and Aft decks: 0.79" / 20 mm

   - Conning towers: Forward 1.97" / 50 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 70,000 shp / 52,220 Kw = 31.68 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 1,485 tons

Complement:
   383 - 499

Cost:
   £0.903 million / $3.613 million

Distribution of weights at normal displacement:
   Armament: 97 tons, 1.4 %
      - Guns: 97 tons, 1.4 %
   Armour: 733 tons, 10.4 %
      - Belts: 437 tons, 6.2 %
      - Armament: 46 tons, 0.7 %
      - Armour Deck: 235 tons, 3.3 %
      - Conning Tower: 16 tons, 0.2 %
   Machinery: 2,652 tons, 37.7 %
   Hull, fittings & equipment: 2,118 tons, 30.1 %
   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):
     4,709 lbs / 2,136 Kg = 154.3 x 3.9 " / 100 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.32
   Metacentric height 3.2 ft / 1.0 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.03

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: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 48
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 2.99 ft / 0.91 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   8.78 %,  20.51 ft / 6.25 m,  19.69 ft / 6.00 m
      - Forward deck:   50.00 %,  19.69 ft / 6.00 m,  17.22 ft / 5.25 m
      - Aft deck:   35.22 %,  17.22 ft / 5.25 m,  17.22 ft / 5.25 m
      - Quarter deck:   6.00 %,  17.22 ft / 5.25 m,  17.22 ft / 5.25 m
      - Average freeboard:      18.08 ft / 5.51 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 131.1 %
      - Above water (accommodation/working, high = better): 150.3 %
   Waterplane Area: 16,841 Square feet or 1,565 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 76 lbs/sq ft or 370 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 1.54
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room

LRC-15 is basicly a Hawkins with one less gun aft.

[TacCovert4]

LRC 15 is definitely cementing the weapon class.  Because I'm not getting hosed by Roman cruisers on a 1 for 1 basis

[Kaiser Kirk]

LRC 15 is definitely cementing the weapon class.  Because I'm not getting hosed by Roman cruisers on a 1 for 1 basis

As ranges extend, the bigger guns are more effective.
The 4 Parthian raiding cruisers are either 8x 180 or 10x165, while the earlier ships are typically 165mm.

[snip]

As the conflict has continued, there is an identified need for more light patrol craft. The older ships, while still capable, are to few in number. They have also not be configured for minelaying/sweeping. The design presented below is meant as a minelayer/sweeper first, but alternative configurations may arise. As it is design primarily for costal work and their presence will free up more seaworthy ships for patrol work, the low overall freeboard is felt acceptable.

Skate, Imperial Roman Patrol Craft laid down 1915

Displacement:
   611 t light; 629 t standard; 750 t normal; 847 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229.66 ft / 229.66 ft) x 27.89 ft x (6.56 / 7.27 ft)
   (70.00 m / 70.00 m) x 8.50 m  x (2.00 / 2.22 m)

Armament:
      1 - 3.94" / 100 mm 45.0 cal gun - 30.86lbs / 14.00kg shells, 75 per gun
     Quick firing gun in deck mount, 1906 Model
     1 x Twin mount on centreline, forward deck forward
      2 - 1.77" / 45.0 mm 50.0 cal guns - 3.31lbs / 1.50kg shells, 250 per gun
     Quick firing guns in deck mounts, 1905 Model
     2 x Single mounts on centreline, aft evenly spread
      2 raised mounts
      2 - 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
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      Weight of broadside 38 lbs / 17 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Electric motors, 2 shafts, 1,800 ihp / 1,343 Kw = 16.19 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 219 tons (100% coal)

Complement:
   71 - 93

Cost:
   £0.058 million / $0.232 million

Distribution of weights at normal displacement:
   Armament: 6 tons, 0.8 %
      - Guns: 6 tons, 0.8 %
   Machinery: 118 tons, 15.7 %
   Hull, fittings & equipment: 257 tons, 34.3 %
   Fuel, ammunition & stores: 139 tons, 18.5 %
   Miscellaneous weights: 230 tons, 30.7 %
      - Hull below water: 75 tons
      - Hull above water: 50 tons
      - On freeboard deck: 100 tons
      - Above deck: 5 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,746 lbs / 792 Kg = 57.2 x 3.9 " / 100 mm shells or 0.9 torpedoes
   Stability (Unstable if below 1.00): 1.45
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 9.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 49 %
         - Recoil effect (Restricted arc if above 1.00): 0.05
   Seaboat quality  (Average = 1.00): 1.81

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.625 / 0.637
   Length to Beam Ratio: 8.24 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 27
   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:   20.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Forward deck:   30.00 %,  14.76 ft / 4.50 m,  14.76 ft / 4.50 m
      - Aft deck:   35.00 %,  5.74 ft / 1.75 m,  5.74 ft / 1.75 m
      - Quarter deck:   15.00 %,  5.74 ft / 1.75 m,  5.74 ft / 1.75 m
      - Average freeboard:      10.25 ft / 3.13 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 72.5 %
      - Above water (accommodation/working, high = better): 127.4 %
   Waterplane Area: 4,793 Square feet or 445 Square metres
   Displacement factor (Displacement / loading): 155 %
   Structure weight / hull surface area: 35 lbs/sq ft or 172 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.79
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Distribution
--Below Water (75t)
----12t Electric Drives
----25 Additional Crew Birthing (Aimed to allow for more effective operations over a 24h period with fresh bodies)
----38t Structural Reinforcement (to minimize damage from near-miss explosions)
--Above Water (50t)
----25t LR Wireless
----25 Additional Crew Birthing (Aimed to allow for more effective operations over a 24h period with fresh bodies)
--On Deck (100t)
----50t Minesweeping Equipment
----50t Mines
--Above Deck (5t)
----5t Additional Searchlights

[Jefgte]

Skate is too weak and too slow.
The Byzantines chose a more "muscular" version for patrols, colonies, scout, escort and the close protection of the BBs and ACs.

=> Economical destroyer.
TGB700, Byzantine Empire Colonial Gunboat laid down 1916
700tl /884tfl - 80x8x3
3x120+1x76,2AA+4TTx457
VTE-27kts-4500nm@10kts
Reserve: 30tons for for Material, Troops, additional Armament, Minen.
30 TGB in my Building Plan

[snip]

Protection of the battleline (whatever I have left of mine) is left to actual fleet ships. 30t of mines and sweeping gear is not viewed as adequate for the intended role.

[The Rock Doctor]

It'd be a handy vessel, certainly.

[snip]

An alternative take on the FC-15 requirement. The B design takes the same broadside of 6x140 and comes in at a little over half the cost. This comes at the expense of armor, what remains is felt to be workable against common small-craft rounds.

FC-15B, Imperial Roman Cruiser laid down 1915

Displacement:
   3,389 t light; 3,522 t standard; 4,120 t normal; 4,598 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (452.75 ft / 442.91 ft) x 42.65 ft x (16.40 / 17.78 ft)
   (138.00 m / 135.00 m) x 13.00 m  x (5.00 / 5.42 m)

Armament:
      6 - 5.51" / 140 mm 55.0 cal guns - 85.98lbs / 39.00kg shells, 175 per gun
     Breech loading guns in deck and hoist mounts, 1909 Model
     3 x Twin mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
      2 - 1.77" / 45.0 mm 50.0 cal guns - 3.31lbs / 1.50kg shells, 150 per gun
     Anti-air guns in deck mounts, 1910 Model
     2 x Single mounts on sides, forward deck aft
      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, 1910 Model
     6 x Single mounts on sides, evenly spread
      6 raised mounts
      Weight of broadside 523 lbs / 237 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.18" / 30 mm   370.28 ft / 112.86 m   9.84 ft / 3.00 m
   Ends:   Unarmoured
     Main Belt covers 129 % 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

   - Protected deck - single deck:
   For and Aft decks: 0.79" / 20 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 38,000 shp / 28,348 Kw = 29.36 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 1,076 tons

Complement:
   256 - 334

Cost:
   £0.558 million / $2.231 million

Distribution of weights at normal displacement:
   Armament: 144 tons, 3.5 %
      - Guns: 144 tons, 3.5 %
   Armour: 351 tons, 8.5 %
      - Belts: 169 tons, 4.1 %
      - Armament: 14 tons, 0.3 %
      - Armour Deck: 168 tons, 4.1 %
   Machinery: 1,439 tons, 34.9 %
   Hull, fittings & equipment: 1,314 tons, 31.9 %
   Fuel, ammunition & stores: 731 tons, 17.7 %
   Miscellaneous weights: 140 tons, 3.4 %
      - Hull below water: 5 tons
      - Hull above water: 20 tons
      - On freeboard deck: 100 tons
      - Above deck: 15 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,630 lbs / 1,193 Kg = 31.4 x 5.5 " / 140 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 1.7 ft / 0.5 m
   Roll period: 13.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.05

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.465 / 0.479
   Length to Beam Ratio: 10.38 : 1
   'Natural speed' for length: 21.05 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 1.77 ft / 0.54 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   8.40 %,  22.15 ft / 6.75 m,  19.69 ft / 6.00 m
      - Forward deck:   35.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   48.60 %,  10.66 ft / 3.25 m,  10.66 ft / 3.25 m
      - Quarter deck:   8.00 %,  10.66 ft / 3.25 m,  10.66 ft / 3.25 m
      - Average freeboard:      14.66 ft / 4.47 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 128.1 %
      - Above water (accommodation/working, high = better): 131.1 %
   Waterplane Area: 12,206 Square feet or 1,134 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 66 lbs/sq ft or 324 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.86
      - Longitudinal: 1.34
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[snip]

The LBS-15 program has been pushed back to 1916 due to a need for war repairs anticipated to take up most of the year. The designs are mostly updated version of the LBS-15 program, with the elimination of the 16x340mm design. LBS-16A is a modified Audax hull, while LBS-16B is a new hull. Both designs share a similar top speed to work with the Audax class, identical armament, and similar vertical protection. By virtue of being larger, LBS-16B carries more extensive and stronger horizontal protection, a thicker TDS, and has better ability to absorb hits.

LBS-16A, Imperial Roman Republic Battleship laid down 1916

Displacement:
   29,600 t light; 31,575 t standard; 33,731 t normal; 35,455 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 / 28.27 ft)
   (193.00 m / 190.00 m) x 31.00 m  x (8.25 / 8.62 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
     Quick firing 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 50.0 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 82.02 ft / 25.00 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: 3.15" / 80 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 = 24.12 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 3,880 tons

Complement:
   1,243 - 1,617

Cost:
   £5.097 million / $20.389 million

Distribution of weights at normal displacement:
   Armament: 3,835 tons, 11.4 %
      - Guns: 3,835 tons, 11.4 %
   Armour: 10,839 tons, 32.1 %
      - Belts: 4,259 tons, 12.6 %
      - Torpedo bulkhead: 959 tons, 2.8 %
      - Armament: 2,917 tons, 8.6 %
      - Armour Deck: 2,395 tons, 7.1 %
      - Conning Tower: 310 tons, 0.9 %
   Machinery: 2,459 tons, 7.3 %
   Hull, fittings & equipment: 10,997 tons, 32.6 %
   Fuel, ammunition & stores: 4,131 tons, 12.2 %
   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):
     46,288 lbs / 20,996 Kg = 22.0 x 16.1 " / 410 mm shells or 7.4 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 8.0 ft / 2.5 m
   Roll period: 15.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 1.06

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): 92.0 %
      - Above water (accommodation/working, high = better): 145.3 %
   Waterplane Area: 50,273 Square feet or 4,670 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: 1.32
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room

LBS-16B, Imperial Roman Battleship laid down 1916

Displacement:
   34,325 t light; 36,400 t standard; 38,723 t normal; 40,581 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 / 30.75 ft)
   (209.00 m / 205.00 m) x 31.00 m  x (9.00 / 9.37 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 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
      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, 1906 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      4 - 1.77" / 45.0 mm 50.0 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
     10 x Single mounts on sides, evenly spread
      10 raised mounts
      Weight of broadside 19,193 lbs / 8,706 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   11.48 ft / 3.50 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      3.15" / 80 mm   437.17 ft / 133.25 m   31.17 ft / 9.50 m
   Beam between torpedo bulkheads 82.02 ft / 25.00 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:   0.98" / 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, 70,000 shp / 52,220 Kw = 24.25 kts
   Range 7,000nm at 14.00 kts
   Bunker at max displacement = 4,181 tons

Complement:
   1,379 - 1,794

Cost:
   £5.402 million / $21.608 million

Distribution of weights at normal displacement:
   Armament: 3,862 tons, 10.0 %
      - Guns: 3,862 tons, 10.0 %
   Armour: 13,252 tons, 34.2 %
      - Belts: 4,666 tons, 12.0 %
      - Torpedo bulkhead: 1,588 tons, 4.1 %
      - Armament: 3,531 tons, 9.1 %
      - Armour Deck: 3,128 tons, 8.1 %
      - Conning Tower: 340 tons, 0.9 %
   Machinery: 2,608 tons, 6.7 %
   Hull, fittings & equipment: 13,032 tons, 33.7 %
   Fuel, ammunition & stores: 4,398 tons, 11.4 %
   Miscellaneous weights: 1,570 tons, 4.1 %
      - Hull below water: 850 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):
     61,071 lbs / 27,701 Kg = 29.0 x 16.1 " / 410 mm shells or 10.3 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 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.71
   Seaboat quality  (Average = 1.00): 1.39

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.671 / 0.675
   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): 82.3 %
      - 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 986 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.51
      - 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.

I'm leaning LSB-16B because its only an additional half of construction at about the same per-turn payment.

[Desertfox]

They are going to take forever to build, you might not have any capital ships left by the time they finish.