Second Caliphate Speculative Design Studies

[miketr]

I like the 30 knot 3x3 12" design better Guinness.  The 4x3 ship has OK firepower but there are some designs out there or we can assume soon that will be able to at least pace the ship.  If you plan on converting it to 4x2 14" gun design it might be OK.  Over all I am impressed by the 30 knot design, good but not spectacular firepower, excellent speed and good protection. 

[Nobody]

Why do you propose a later upgrade from 12" III to 14 II? Is it because of similar SpringSharp weights?

Just by Barbette size I would expect that an upgrade to at least 15" twin likely 16" twin is possible (considered that the German 28 cm triple had the same diameter as the 38 cm twin).

[P3D]

The triple 12" weights are rather similar to 2x13.5"-13.8", 15" is way too heavy in comparison. I'd rather have more shells in the air than a gun that is not more effective against modern BBs.

[Guinness]

An upgunning is possible, but I expect to no larger than 35cm or so. Since I don't usually care for 6 gun ships, I don't think I'd bother. Refitting a ship built with 30.5cmL45s with 30.5cmL50s might be worth the trouble though.

Actually, I've just been fiddling a little with a slightly more conventional 8x30.5cm (4 twin turrets) ship, just because if I were to build something this size, I'd like that look better.

[miketr]

Why do you propose a later upgrade from 12" III to 14 II? Is it because of similar SpringSharp weights?

Just by Barbette size I would expect that an upgrade to at least 15" twin likely 16" twin is possible (considered that the German 28 cm triple had the same diameter as the 38 cm twin).

The gun replacement was going to require reconstruction of the ship as it the turrets were going have different weight balances, ammo hoists, etc.  It was going to be a MAJOR endeavor.

Michael   

[miketr]

Actually, I've just been fiddling a little with a slightly more conventional 8x30.5cm (4 twin turrets) ship, just because if I were to build something this size, I'd like that look better.

That would be nice looking and you would have the guns sooner.

Michael

[Guinness]

8-Gun ship:

8x305mm Fast, Ottoman Empire Capital Ship laid down 1922 (Engine 1916)

Displacement:
   30,000 t light; 31,131 t standard; 32,602 t normal; 33,779 t full load

Dimensions: Length overall / water x beam x draught
   700.45 ft / 692.26 ft x 95.14 ft x 31.50 ft (normal load)
   213.50 m / 211.00 m x 29.00 m  x 9.60 m

Armament:
      8 - 12.00" / 305 mm guns (4x2 guns), 893.97lbs / 405.50kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      6 - 1.57" / 40.0 mm guns (2x3 guns), 1.95lbs / 0.88kg shells, 1922 Model
     Anti-aircraft guns in deck mounts
     on centreline, all amidships, all raised mounts - superfiring
      8 - 0.51" / 13.0 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1920 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 8,400 lbs / 3,810 kg
   Shells per gun, main battery: 100
   16 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm   498.69 ft / 152.00 m   16.40 ft / 5.00 m
   Ends:   3.94" / 100 mm   193.24 ft / 58.90 m   16.40 ft / 5.00 m
     Main Belt covers 111 % of normal length

   - Torpedo Bulkhead:
      1.18" / 30 mm   498.69 ft / 152.00 m   32.81 ft / 10.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.4" / 340 mm   4.72" / 120 mm      12.6" / 320 mm
   3rd:   3.94" / 100 mm   1.97" / 50 mm      4.72" / 120 mm

   - Armour deck: 3.15" / 80 mm, Conning tower: 12.99" / 330 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 140,000 shp / 104,440 Kw = 30.25 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 2,648 tons

Complement:
   1,213 - 1,577

Cost:
   £7.192 million / $28.768 million

Distribution of weights at normal displacement:
   Armament: 1,020 tons, 3.1 %
   Armour: 11,156 tons, 34.2 %
      - Belts: 4,804 tons, 14.7 %
      - Torpedo bulkhead: 715 tons, 2.2 %
      - Armament: 2,673 tons, 8.2 %
      - Armour Deck: 2,678 tons, 8.2 %
      - Conning Tower: 286 tons, 0.9 %
   Machinery: 5,216 tons, 16.0 %
   Hull, fittings & equipment: 12,151 tons, 37.3 %
   Fuel, ammunition & stores: 2,602 tons, 8.0 %
   Miscellaneous weights: 457 tons, 1.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     42,295 lbs / 19,185 Kg = 49.0 x 12.0 " / 305 mm shells or 5.3 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 5.5 ft / 1.7 m
   Roll period: 17.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.57
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.550
   Length to Beam Ratio: 7.28 : 1
   'Natural speed' for length: 26.31 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 42
   Bow angle (Positive = bow angles forward): 14.30 degrees
   Stern overhang: -6.56 ft / -2.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      32.15 ft / 9.80 m
      - Forecastle (15 %):   31.17 ft / 9.50 m
      - Mid (65 %):      30.51 ft / 9.30 m (22.64 ft / 6.90 m aft of break)
      - Quarterdeck (15 %):   22.97 ft / 7.00 m
      - Stern:      23.29 ft / 7.10 m
      - Average freeboard:   28.18 ft / 8.59 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 109.3 %
      - Above water (accommodation/working, high = better): 206.0 %
   Waterplane Area: 45,966 Square feet or 4,270 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 172 lbs/sq ft or 840 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.73
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Good seaboat, rides out heavy weather easily

Misc Weight:
250t: Firecontrol
32t: 4x21" Torpedo tubes each with 4 reloads
25t: Long Range Wireless
100t: Flag Facilities
50t: Reserve

[Nobody]

16 - 21.0" / 533.4 mm submerged torpedo tubes

Isn't that kind of overkill? And submerged nonetheless.

[Guinness]

Just 4 tubes (2 on either beam), the rest are reloads. You have to list them this way for SS. SS2 doesn't count any weight for torpedoes, no matter what, but the space they take up is figured into the space calculations, and they figure into stability as well.

[Jefgte]

This is a super Derfflinger in protection & speed.

16 sub TT ... au unusual armament quantity on a CB.



Jef

[Sachmle]

This is a super Derfflinger in protection & speed.

16 sub TT ... au unusual armament quantity on a CB.



Jef

Just 4 tubes (2 on either beam), the rest are reloads. You have to list them this way for SS. SS2 doesn't count any weight for torpedoes, no matter what, but the space they take up is figured into the space calculations, and they figure into stability as well.

[Jefgte]

+++SS2 doesn't count any weight for torpedoes, no matter what, but the space they take up is figured into the space calculations, and they figure into stability as well.
...

The quantity of sub TT decrease certainly the survivability (?)


Jef

[mentat]

I liked the 12k ton Wheeler Lite you posted back a few pages - but as an alternative to the 30k ton BC design - for Offensive Cruiser Operations (I'm assuming you have sufficient Defensive Forces) - why not go for a Wheeler Max - something like this:

- it can truly outrun anything it cannot outfight ...

- since you have a 210mm gun - a 15 (5 x3) gun ship possible for this size - can reduce the secs  - fewer 150mm ;D

   (Belt length needs bit tweaking)

  Heavy Gun Cruiser laid down 1918

Displacement:
   17,444 t light; 18,446 t standard; 20,065 t normal; 21,360 t full load

Dimensions: Length overall / water x beam x draught
   685.00 ft / 685.00 ft x 74.50 ft x 25.25 ft (normal load)
   208.79 m / 208.79 m x 22.71 m  x 7.70 m

Armament:
      12 - 8.66" / 220 mm guns (3x4 guns), 325.00lbs / 147.42kg shells, 1918 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
      4 - 5.51" / 140 mm guns (1x4 guns), 85.00lbs / 38.56kg shells, 1918 Model
     Breech loading guns in a turret (on a barbette)
     on centreline aft, all raised guns - superfiring
      16 - 5.51" / 140 mm guns (8x2 guns), 85.00lbs / 38.56kg shells, 1918 Model
     Breech loading guns in deck mounts with hoists
     on side, evenly spread, 4 raised mounts
      6 - 2.56" / 65.0 mm guns in single mounts, 8.50lbs / 3.86kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      32 - 1.00" / 25.4 mm guns (8x4 guns), 0.50lbs / 0.23kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 5,667 lbs / 2,571 kg
   Shells per gun, main battery: 180
   8 - 23.0" / 584.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   6.00" / 152 mm   480.00 ft / 146.30 m   12.00 ft / 3.66 m
   Ends:   Unarmoured
     Main Belt covers 108 % of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.00" / 178 mm   3.00" / 76 mm      5.00" / 127 mm
   2nd:   3.00" / 76 mm   1.50" / 38 mm      3.00" / 76 mm
   3rd:   1.50" / 38 mm   1.00" / 25 mm      2.00" / 51 mm
   4th:   0.80" / 20 mm   0.50" / 13 mm            -
   5th:   0.80" / 20 mm         -               -

   - Armour deck: 2.00" / 51 mm, Conning tower: 6.00" / 152 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 138,632 shp / 103,419 Kw = 32.75 kts
   Range 8,000nm at 14.00 kts
   Bunker at max displacement = 2,913 tons

Complement:
   842 - 1,095

Cost:
   £3.806 million / $15.223 million

Distribution of weights at normal displacement:
   Armament: 705 tons, 3.5 %
   Armour: 3,624 tons, 18.1 %
      - Belts: 1,435 tons, 7.2 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 782 tons, 3.9 %
      - Armour Deck: 1,312 tons, 6.5 %
      - Conning Tower: 95 tons, 0.5 %
   Machinery: 5,001 tons, 24.9 %
   Hull, fittings & equipment: 7,714 tons, 38.4 %
   Fuel, ammunition & stores: 2,621 tons, 13.1 %
   Miscellaneous weights: 400 tons, 2.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17,416 lbs / 7,900 Kg = 53.6 x 8.7 " / 220 mm shells or 1.8 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 3.8 ft / 1.2 m
   Roll period: 16.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.72
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.545
   Length to Beam Ratio: 9.19 : 1
   'Natural speed' for length: 26.17 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      30.00 ft / 9.14 m
      - Forecastle (20 %):   25.00 ft / 7.62 m (23.00 ft / 7.01 m aft of break)
      - Mid (50 %):      20.00 ft / 6.10 m
      - Quarterdeck (15 %):   20.00 ft / 6.10 m
      - Stern:      21.00 ft / 6.40 m
      - Average freeboard:   21.93 ft / 6.68 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 110.9 %
      - Above water (accommodation/working, high = better): 144.4 %
   Waterplane Area: 35,449 Square feet or 3,293 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 141 lbs/sq ft or 688 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.29
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent


  - and as a running mate - a more Medium sized Cruiser - very effective vs CLs and DDs:

(but need to up the Speed to make them compatible, can reduce the Armament a bit - although 20 x 6" is nice, and poss lose UB)

  Medium Gun Cruiser laid down 1918

Displacement:
   10,206 t light; 10,819 t standard; 12,197 t normal; 13,300 t full load

Dimensions: Length overall / water x beam x draught
   589.00 ft / 585.00 ft x 65.00 ft x 20.60 ft (normal load)
   179.53 m / 178.31 m x 19.81 m  x 6.28 m

Armament:
      12 - 6.00" / 152 mm guns (4x3 guns), 115.00lbs / 52.16kg shells, 1918 Model
     Quick firing guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      8 - 6.00" / 152 mm guns in single mounts, 115.00lbs / 52.16kg shells, 1918 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships
      6 - 3.50" / 88.9 mm guns in single mounts, 21.50lbs / 9.75kg shells, 1918 Model
     Anti-aircraft guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
      32 - 1.00" / 25.4 mm guns (8x4 guns), 0.50lbs / 0.23kg shells, 1918 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 2,445 lbs / 1,109 kg
   Shells per gun, main battery: 250
   8 - 22.0" / 558.8 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.00" / 102 mm   367.00 ft / 111.86 m   12.00 ft / 3.66 m
   Ends:   Unarmoured
   Upper:   3.50" / 89 mm   200.00 ft / 60.96 m   8.00 ft / 2.44 m
     Main Belt covers 97 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4.00" / 102 mm   2.50" / 64 mm      4.00" / 102 mm
   2nd:   3.00" / 76 mm   2.00" / 51 mm      4.00" / 102 mm
   3rd:   1.00" / 25 mm   0.80" / 20 mm            -

   - Armour deck: 2.00" / 51 mm, Conning tower: 5.00" / 127 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 76,642 shp / 57,175 Kw = 30.00 kts
   Range 8,000nm at 15.00 kts
   Bunker at max displacement = 2,482 tons

Complement:
   579 - 754

Cost:
   £1.973 million / $7.890 million

Distribution of weights at normal displacement:
   Armament: 288 tons, 2.4 %
   Armour: 2,511 tons, 20.6 %
      - Belts: 1,015 tons, 8.3 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 462 tons, 3.8 %
      - Armour Deck: 977 tons, 8.0 %
      - Conning Tower: 57 tons, 0.5 %
   Machinery: 2,765 tons, 22.7 %
   Hull, fittings & equipment: 4,342 tons, 35.6 %
   Fuel, ammunition & stores: 1,991 tons, 16.3 %
   Miscellaneous weights: 300 tons, 2.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     13,824 lbs / 6,270 Kg = 128.0 x 6.0 " / 152 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 3.1 ft / 0.9 m
   Roll period: 15.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.50
   Seaboat quality  (Average = 1.00): 1.04

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.545
   Length to Beam Ratio: 9.00 : 1
   'Natural speed' for length: 24.19 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 4.00 ft / 1.22 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26.00 ft / 7.92 m
      - Forecastle (20 %):   22.00 ft / 6.71 m
      - Mid (50 %):      22.00 ft / 6.71 m (14.00 ft / 4.27 m aft of break)
      - Quarterdeck (15 %):   14.00 ft / 4.27 m
      - Stern:      15.00 ft / 4.57 m
      - Average freeboard:   18.40 ft / 5.61 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): 129.3 %
   Waterplane Area: 26,413 Square feet or 2,454 Square metres
   Displacement factor (Displacement / loading): 115 %
   Structure weight / hull surface area: 109 lbs/sq ft or 533 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.18
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform

[Guinness]

Yeah, it's really a matter of groping for the best use of limited resources. I've fiddled with lots of designs here. I'd like to find a way to tie up Iberian resources far from my own shores, and ultimately big open-water U-boats are most likely the best choice for that, but I have to wait until I have the tech to build them.

I like cruisers. They are fun to design, fun to illustrate, and have a lot of peacetime and wartime utility. Unfortunately the Ottomans, with less than 8 BP per half probably can't afford the sort of big powerful fast cruisers I'm tempted to build.

One of those big 30k ton 12" armed ships is still a possibility as a prestige project, I suppose. There's also this, which is kind of fun:

8x280mm , Ottoman Empire Cruiser laid down 1922 (Engine 1916)

Displacement:
   21,000 t light; 21,772 t standard; 23,148 t normal; 24,249 t full load

Dimensions: Length overall / water x beam x draught
   679.15 ft / 666.01 ft x 82.68 ft x 27.25 ft (normal load)
   207.00 m / 203.00 m x 25.20 m  x 8.31 m

Armament:
      8 - 11.02" / 280 mm guns (4x2 guns), 665.80lbs / 302.00kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread, 1 raised mount
     Aft Main mounts separated by engine room
      6 - 4.72" / 120 mm guns in single mounts, 50.00lbs / 22.68kg shells, 1909 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      6 - 1.57" / 40.0 mm guns (2x3 guns), 1.95lbs / 0.88kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on centreline, all amidships, all raised mounts - superfiring
      8 - 0.51" / 13.0 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1922 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 4.72" / 120 mm guns in single mounts, 50.00lbs / 22.68kg shells, 1922 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     8 guns in hull casemates - Limited use in heavy seas
   Weight of broadside 6,039 lbs / 2,739 kg
   Shells per gun, main battery: 90

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10.6" / 270 mm   441.27 ft / 134.50 m   16.40 ft / 5.00 m
   Ends:   2.95" / 75 mm   224.74 ft / 68.50 m   16.40 ft / 5.00 m
   Upper:   1.57" / 40 mm   196.85 ft / 60.00 m   16.73 ft / 5.10 m
     Main Belt covers 102 % of normal length

   - Torpedo Bulkhead:
      1.18" / 30 mm   441.27 ft / 134.50 m   32.48 ft / 9.90 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.2" / 310 mm   3.94" / 100 mm      10.2" / 260 mm
   2nd:   1.57" / 40 mm         -         1.57" / 40 mm
   5th:   1.57" / 40 mm         -               -

   - Armour deck: 1.97" / 50 mm, Conning tower: 11.02" / 280 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 96,000 shp / 71,616 Kw = 29.04 kts
   Range 8,000nm at 12.00 kts
   Bunker at max displacement = 2,477 tons

Complement:
   937 - 1,219

Cost:
   £5.119 million / $20.478 million

Distribution of weights at normal displacement:
   Armament: 764 tons, 3.3 %
   Armour: 7,786 tons, 33.6 %
      - Belts: 3,932 tons, 17.0 %
      - Torpedo bulkhead: 626 tons, 2.7 %
      - Armament: 1,648 tons, 7.1 %
      - Armour Deck: 1,386 tons, 6.0 %
      - Conning Tower: 193 tons, 0.8 %
   Machinery: 3,577 tons, 15.5 %
   Hull, fittings & equipment: 8,478 tons, 36.6 %
   Fuel, ammunition & stores: 2,149 tons, 9.3 %
   Miscellaneous weights: 395 tons, 1.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     32,682 lbs / 14,824 Kg = 48.8 x 11.0 " / 280 mm shells or 4.7 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 4.5 ft / 1.4 m
   Roll period: 16.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.540
   Length to Beam Ratio: 8.06 : 1
   'Natural speed' for length: 25.81 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 13.90 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26.57 ft / 8.10 m
      - Forecastle (15 %):   25.59 ft / 7.80 m
      - Mid (66 %):      24.93 ft / 7.60 m (17.06 ft / 5.20 m aft of break)
      - Quarterdeck (15 %):   17.39 ft / 5.30 m
      - Stern:      17.72 ft / 5.40 m
      - Average freeboard:   22.69 ft / 6.92 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101.8 %
      - Above water (accommodation/working, high = better): 178.6 %
   Waterplane Area: 38,070 Square feet or 3,537 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 147 lbs/sq ft or 720 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.37
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Good seaboat, rides out heavy weather easily

Misc Weight:
250t: Firecontrol
25t: Long Range Wireless
70t: Flag Stuff
50t: Reserve

I've also been messing with a coast defense concept. The idea would be to pair two of these monitors with nearly stationary torpedo armed ships (ie torpedo monitors), some sort of command ship/tender, and a few more conventional ships for anti-tb protection, and position the whole package in a choke point to suppliment coastal guns, particularly when the can't reach across the whole body of water. Optimally, they'd all be mored or anchored in shallow enough water, but in deep water, I've tried to give the monitor enough motor for stationkeeping. Transits would likely be under tow. The guns are Dutch 38cm, used as a placeholder for now.

Ottoman Heavy Monitor, Ottoman Empire Monitor laid down 1920 (Engine 1916)

Displacement:
   6,000 t light; 6,302 t standard; 6,391 t normal; 6,463 t full load

Dimensions: Length overall / water x beam x draught
   236.22 ft / 236.22 ft x 111.55 ft x 10.48 ft (normal load)
   72.00 m / 72.00 m x 34.00 m  x 3.19 m

Armament:
      2 - 14.96" / 380 mm guns (1x2 guns), 1,951.09lbs / 885.00kg shells, 1920 Model
     Breech loading guns in a turret (on a barbette)
     on centreline amidships
   Weight of broadside 3,902 lbs / 1,770 kg
   Shells per gun, main battery: 80

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.6" / 320 mm     85.30 ft / 26.00 m   8.20 ft / 2.50 m
   Ends:   Unarmoured
     Main Belt covers 56 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13.8" / 350 mm   4.72" / 120 mm      12.6" / 320 mm

   - Armour deck: 2.95" / 75 mm, Conning tower: 12.60" / 320 mm

Machinery:
   Diesel Internal combustion motors,
   Direct drive, 2 shafts, 300 shp / 224 Kw = 6.24 kts
   Range 3,000nm at 6.00 kts
   Bunker at max displacement = 161 tons

Complement:
   356 - 464

Cost:
   £1.331 million / $5.325 million

Distribution of weights at normal displacement:
   Armament: 419 tons, 6.5 %
   Armour: 2,291 tons, 35.8 %
      - Belts: 655 tons, 10.2 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 274 tons, 4.3 %
      - Armour Deck: 1,268 tons, 19.8 %
      - Conning Tower: 93 tons, 1.5 %
   Machinery: 11 tons, 0.2 %
   Hull, fittings & equipment: 2,980 tons, 46.6 %
   Fuel, ammunition & stores: 391 tons, 6.1 %
   Miscellaneous weights: 300 tons, 4.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9,705 lbs / 4,402 Kg = 5.8 x 15.0 " / 380 mm shells or 3.9 torpedoes
   Stability (Unstable if below 1.00): 1.39
   Metacentric height 10.5 ft / 3.2 m
   Roll period: 14.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 0.49

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.810
   Length to Beam Ratio: 2.12 : 1
   'Natural speed' for length: 15.37 kts
   Power going to wave formation at top speed: 18 %
   Trim (Max stability = 0, Max steadiness = 100): 100
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      4.10 ft / 1.25 m
      - Forecastle (15 %):   4.10 ft / 1.25 m
      - Mid (50 %):      4.10 ft / 1.25 m
      - Quarterdeck (15 %):   4.10 ft / 1.25 m
      - Stern:      4.10 ft / 1.25 m
      - Average freeboard:   4.10 ft / 1.25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 55.2 %
      - Above water (accommodation/working, high = better): 51.0 %
   Waterplane Area: 23,220 Square feet or 2,157 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 132 lbs/sq ft or 643 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.38
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is cramped
   Caution: Lacks seaworthiness - very limited seakeeping ability

[Carthaginian]

Monitor looks really nice... but I wouldn't take her out on Lake Guntersville unless it was a calm day.
You can only carry the whole 'lacks seaworthyness' thing so far, G, before it does become a real issue.

That's too good a design to wind up like the Yankee Cheesebox.