CSA Speculative Design Studies

Started by Guinness, August 31, 2008, 08:07:13 PM

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Tanthalas

"He either fears his fate too much,
Or his desserts are small,
Who dares not put it to the touch,
To win or lose it all!"

James Graham, 5th Earl of Montrose
1612 to 1650
Royalist General during the English Civil War

Guinness

A 10x7.5" ship with 8 4.75" secondaries and a bunch of lighter guns doesn't even get a NEDS from Borys? ;-)

Here's the version with 250t FC. Even managed to gain a little speed for my 250t weight added...

I like how this ship came out, so it's likely it will become the first-line replacement for my aging 1st and 2nd class ACs. The question still is whether a larger cruiser or a BC is worth it.

CSA 2nd Class Cruiser secondary armor, CSA 2nd Class Cruiser laid down 1916 (Engine 1912)

Displacement:
   10,250 t light; 10,811 t standard; 12,337 t normal; 13,557 t full load

Dimensions: Length overall / water x beam x draught
   557.00 ft / 546.00 ft x 62.00 ft x 25.51 ft (normal load)
   169.77 m / 166.42 m x 18.90 m  x 7.78 m

Armament:
      10 - 7.50" / 191 mm guns (5x2 guns), 200.00lbs / 90.72kg shells, 1916 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 2 raised mounts - superfiring
      8 - 4.75" / 121 mm guns in single mounts, 50.00lbs / 22.68kg shells, 1916 Model
     Quick firing guns in deck mounts with hoists
     on side, evenly spread
      6 - 1.50" / 38.1 mm guns in single mounts, 1.75lbs / 0.79kg shells, 1916 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 1.00" / 25.4 mm guns (4x2 guns), 0.50lbs / 0.23kg shells, 1916 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1916 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 2,415 lbs / 1,095 kg
   Shells per gun, main battery: 225
   4 - 20.0" / 508 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4.00" / 102 mm   363.00 ft / 110.64 m   14.00 ft / 4.27 m
   Ends:   2.50" / 64 mm   163.00 ft / 49.68 m   8.00 ft / 2.44 m
     20.00 ft / 6.10 m Unarmoured ends
   Upper:   2.50" / 64 mm   363.00 ft / 110.64 m   8.00 ft / 2.44 m
     Main Belt covers 102 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.00" / 127 mm   1.00" / 25 mm      4.00" / 102 mm
   2nd:   1.00" / 25 mm         -         1.50" / 38 mm
   3rd:   0.75" / 19 mm         -               -
   4th:   0.50" / 13 mm         -               -
   5th:   0.25" / 6 mm         -               -

   - Armour deck: 1.25" / 32 mm, Conning tower: 5.00" / 127 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 74,000 shp / 55,204 Kw = 29.62 kts
   Range 7,000nm at 15.00 kts
   Bunker at max displacement = 2,746 tons

Complement:
   584 - 760

Cost:
   £1.702 million / $6.806 million

Distribution of weights at normal displacement:
   Armament: 319 tons, 2.6 %
   Armour: 2,333 tons, 18.9 %
      - Belts: 1,277 tons, 10.4 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 477 tons, 3.9 %
      - Armour Deck: 522 tons, 4.2 %
      - Conning Tower: 58 tons, 0.5 %
   Machinery: 2,951 tons, 23.9 %
   Hull, fittings & equipment: 4,278 tons, 34.7 %
   Fuel, ammunition & stores: 2,086 tons, 16.9 %
   Miscellaneous weights: 369 tons, 3.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     12,839 lbs / 5,823 Kg = 60.9 x 7.5 " / 191 mm shells or 1.6 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 2.9 ft / 0.9 m
   Roll period: 15.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 57 %
         - Recoil effect (Restricted arc if above 1.00): 0.60
   Seaboat quality  (Average = 1.00): 1.19

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 8.81 : 1
   'Natural speed' for length: 23.37 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 48
   Bow angle (Positive = bow angles forward): 20.77 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      29.00 ft / 8.84 m
      - Forecastle (17 %):   24.00 ft / 7.32 m
      - Mid (48 %):      19.50 ft / 5.94 m
      - Quarterdeck (17 %):   19.50 ft / 5.94 m
      - Stern:      19.50 ft / 5.94 m
      - Average freeboard:   21.29 ft / 6.49 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102.0 %
      - Above water (accommodation/working, high = better): 139.9 %
   Waterplane Area: 22,555 Square feet or 2,095 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 110 lbs/sq ft or 537 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.87
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

Misc Weights:

250t: Fire Control
25t: Marconi
4t: Torpedoes
25t: Extra accommodations and flag facilities
65t: Misc Equipment and reserve

Guinness

And while I'm at it, a 30 knot version, just for comparison's sake. I think this one is probably a little thin skinned though.

CSA 2nd Class Cruiser 30 knots, CSA 2nd Class Cruiser laid down 1916 (Engine 1912)

Displacement:
   10,250 t light; 10,811 t standard; 12,337 t normal; 13,557 t full load

Dimensions: Length overall / water x beam x draught
   557.00 ft / 546.00 ft x 62.00 ft x 25.51 ft (normal load)
   169.77 m / 166.42 m x 18.90 m  x 7.78 m

Armament:
      10 - 7.50" / 191 mm guns (5x2 guns), 200.00lbs / 90.72kg shells, 1916 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 2 raised mounts - superfiring
      8 - 4.75" / 121 mm guns in single mounts, 50.00lbs / 22.68kg shells, 1916 Model
     Quick firing guns in deck mounts with hoists
     on side, evenly spread
      6 - 1.50" / 38.1 mm guns in single mounts, 1.75lbs / 0.79kg shells, 1916 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 1.00" / 25.4 mm guns (4x2 guns), 0.50lbs / 0.23kg shells, 1916 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1916 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 2,415 lbs / 1,095 kg
   Shells per gun, main battery: 225
   4 - 20.0" / 508 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.00" / 76 mm   384.00 ft / 117.04 m   14.00 ft / 4.27 m
   Ends:   2.00" / 51 mm   142.00 ft / 43.28 m   8.00 ft / 2.44 m
     20.00 ft / 6.10 m Unarmoured ends
   Upper:   2.00" / 51 mm   384.00 ft / 117.04 m   8.00 ft / 2.44 m
     Main Belt covers 108 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.00" / 127 mm   1.00" / 25 mm      3.25" / 83 mm
   2nd:   1.00" / 25 mm         -         1.50" / 38 mm
   3rd:   0.75" / 19 mm         -               -
   4th:   0.50" / 13 mm         -               -
   5th:   0.25" / 6 mm         -               -

   - Armour deck: 1.25" / 32 mm, Conning tower: 5.00" / 127 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 80,000 shp / 59,680 Kw = 30.19 kts
   Range 7,000nm at 15.00 kts
   Bunker at max displacement = 2,746 tons

Complement:
   584 - 760

Cost:
   £1.756 million / $7.026 million

Distribution of weights at normal displacement:
   Armament: 319 tons, 2.6 %
   Armour: 2,010 tons, 16.3 %
      - Belts: 1,009 tons, 8.2 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 422 tons, 3.4 %
      - Armour Deck: 522 tons, 4.2 %
      - Conning Tower: 58 tons, 0.5 %
   Machinery: 3,190 tons, 25.9 %
   Hull, fittings & equipment: 4,362 tons, 35.4 %
   Fuel, ammunition & stores: 2,086 tons, 16.9 %
   Miscellaneous weights: 369 tons, 3.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11,612 lbs / 5,267 Kg = 55.0 x 7.5 " / 191 mm shells or 1.4 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 2.9 ft / 0.9 m
   Roll period: 15.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0.64
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 8.81 : 1
   'Natural speed' for length: 23.37 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): 20.77 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      29.00 ft / 8.84 m
      - Forecastle (17 %):   24.50 ft / 7.47 m
      - Mid (51 %):      20.00 ft / 6.10 m
      - Quarterdeck (17 %):   20.00 ft / 6.10 m
      - Stern:      20.00 ft / 6.10 m
      - Average freeboard:   21.84 ft / 6.66 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 108.1 %
      - Above water (accommodation/working, high = better): 144.2 %
   Waterplane Area: 22,555 Square feet or 2,095 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 111 lbs/sq ft or 540 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 2.02
      - 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 Weights:

250t: Fire Control
25t: Marconi
4t: Torpedoes
25t: Extra accommodations and flag facilities
65t: Misc Equipment and reserve

Borys

Quote from: guinness on September 02, 2008, 10:17:19 AM
A 10x7.5" ship with 8 4.75" secondaries and a bunch of lighter guns doesn't even get a NEDS from Borys? ;-)

It is in line with several OTL examples.
Mogami?
Borys

NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!

Guinness

Right now, Mogami might be a good OTL parallel, yes. This ship has a heavier secondary armament though, and hopefully more reserve stability, if less speed. I'm not sure I'm committed to the 3 forward, 2 aft turret arrangement. I'd rather build a ship with 2 triples and 2 twins, but as it is, I'll have to research the twin mounting for a year before I'd build this, so possibly a 4 turret design will evolve from the 5 turret design.

If it is to be a 5 turret ship, it's most likely to be a Brooklyn style raised second turret, to save some length. When I get home from my holiday this week, I'll take a hack at drawing one and see how it looks.

Borys

http://www.combinedfleet.com/haguro01.jpg

10x8", 8x5" ... even with five inchers being twins it looks crowded ... but there should be space for four singles on each beam, if the floatplane facilities are (mercifully) deleted.
Borys
NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!

Guinness

Wikipedia has a good US ONI illustration of Mogami in her 8" configuration it turns out:

http://upload.wikimedia.org/wikipedia/commons/e/ef/Mogami-1.jpg

She's got a much longer L/B ratio at 10.5, and is a lot longer overall and doesn't draw nearly as much water as this design.

I think she looks crowded because of the aircraft installation as much as anything else.

Guinness

#22
Riffing off Tanthalas's preference for 10x10" at 28 knots, here's tonight's crazy concept for a modern CSA take on an Armored Cruiser:

CSA 1st Class Cruiser 12 10 inch, CSA 1st Class Cruiser laid down 1916 (Engine 1912)

Displacement:
   18,400 t light; 19,589 t standard; 21,757 t normal; 23,491 t full load

Dimensions: Length overall / water x beam x draught
   676.00 ft / 665.00 ft x 86.00 ft x 25.61 ft (normal load)
   206.04 m / 202.69 m x 26.21 m  x 7.80 m

Armament:
      12 - 10.00" / 254 mm guns (4x3 guns), 500.00lbs / 226.80kg shells, 1916 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      8 - 5.50" / 140 mm guns in single mounts, 80.00lbs / 36.29kg shells, 1916 Model
     Quick firing guns in deck mounts with hoists
     on side, evenly spread
      6 - 1.50" / 38.1 mm guns in single mounts, 1.75lbs / 0.79kg shells, 1916 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 1.00" / 25.4 mm guns (4x2 guns), 0.50lbs / 0.23kg shells, 1916 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1916 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 6,655 lbs / 3,019 kg
   Shells per gun, main battery: 200

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.00" / 178 mm   454.00 ft / 138.38 m   14.00 ft / 4.27 m
   Ends:   3.00" / 76 mm   191.00 ft / 58.22 m   8.00 ft / 2.44 m
     20.00 ft / 6.10 m Unarmoured ends
   Upper:   4.00" / 102 mm   454.00 ft / 138.38 m   8.00 ft / 2.44 m
     Main Belt covers 105 % of normal length

   - Torpedo Bulkhead:
      1.25" / 32 mm   454.00 ft / 138.38 m   24.00 ft / 7.32 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   8.00" / 203 mm   4.00" / 102 mm      7.00" / 178 mm
   2nd:   1.00" / 25 mm         -         1.50" / 38 mm
   3rd:   0.75" / 19 mm         -               -
   4th:   0.50" / 13 mm         -               -
   5th:   0.25" / 6 mm         -               -

   - Armour deck: 1.50" / 38 mm, Conning tower: 9.00" / 229 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 80,000 shp / 59,680 Kw = 28.00 kts
   Range 7,000nm at 15.00 kts
   Bunker at max displacement = 3,903 tons

Complement:
   895 - 1,164

Cost:
   £2.932 million / $11.729 million

Distribution of weights at normal displacement:
   Armament: 835 tons, 3.8 %
   Armour: 5,631 tons, 25.9 %
      - Belts: 2,664 tons, 12.2 %
      - Torpedo bulkhead: 504 tons, 2.3 %
      - Armament: 1,235 tons, 5.7 %
      - Armour Deck: 1,077 tons, 5.0 %
      - Conning Tower: 151 tons, 0.7 %
   Machinery: 3,190 tons, 14.7 %
   Hull, fittings & equipment: 8,364 tons, 38.4 %
   Fuel, ammunition & stores: 3,357 tons, 15.4 %
   Miscellaneous weights: 380 tons, 1.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     27,912 lbs / 12,661 Kg = 55.8 x 10.0 " / 254 mm shells or 4.3 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 4.8 ft / 1.5 m
   Roll period: 16.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.520
   Length to Beam Ratio: 7.73 : 1
   'Natural speed' for length: 25.79 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): 20.77 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      29.00 ft / 8.84 m
      - Forecastle (18 %):   23.00 ft / 7.01 m
      - Mid (50 %):      18.00 ft / 5.49 m
      - Quarterdeck (18 %):   18.00 ft / 5.49 m
      - Stern:      18.00 ft / 5.49 m
      - Average freeboard:   20.11 ft / 6.13 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105.0 %
      - Above water (accommodation/working, high = better): 159.0 %
   Waterplane Area: 38,811 Square feet or 3,606 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 151 lbs/sq ft or 736 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.21
      - 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
   Good seaboat, rides out heavy weather easily

Misc Weights:

250t: Fire Control
25t: Marconi
25t: Extra accommodations and flag facilities
80t: Misc Equipment and reserve

Borys

Too large for 10" - at this size I'd go with 4x2x12".
Borys
NEDS - Not Enough Deck Space for all those guns and torpedos;
Bambi must DIE!

Desertfox

Underwhelming to say the least, especially for a 1916 ship. The Swiss Independance and the Columbian Warriors, are capable of 27 knots, carry 8x12", and are already in service. The Independance has a 9" belt and 3" deck, while the Warrioirs have a 12" belt and 3" deck. The Independance being a thousand tons lighter and having the firepower to repel a torpedo boat attack.
"We don't run from the end of the world. We CHARGE!" Schlock

http://www.schlockmercenary.com/d/20090102.html

Guinness

#25
The CSA doesn't have much use for true Battlecruisers, so giving up on the idea of an extra large cruiser for now, something entirely different:

Faced with refitting a large number of "Frigates" (as known in the CSA), one concept under consideration is their conversion to dedicated flagship/tenders for 10 boat divisions of the new 250t Torpedo Boats.

Torpedo boat: http://www.navalism.org/index.php?topic=2657.msg28669#msg28669

Thomasville class frigates: http://www.navalism.org/index.php?topic=747.msg4941#msg4941

During conversion, 3/4 of the boilers would be removed, reducing top speed, and the rest converted to solely oil firing. The former boiler spaces would be used for additional bunkerage. Most of the 4.85" 55 pounder guns, and all of the 6 pounder guns removed, their handling rooms being used for additional berthing space. New workshops on-deck, and space made for reload torpedo storage. The armored belt would be removed.

Enough fuel would be carried to refuel each boat once, and enough torpedoes carried to reload each boat once. Limited shops for various light maintenance tasks.

These ships would be used to allow TB division to deploy along the CSA coast away from major ports, or for forward deployments elsewhere, though fuel would need to be supplied periodically by oilers.

(OOC: This is also a test to see if I understand the new Tender rules)

CSS Thomasville Tender Refit, CSA TB Tender laid down 1900

Displacement:
   2,330 t light; 2,400 t standard; 2,933 t normal; 3,360 t full load

Dimensions: Length overall / water x beam x draught
   330.00 ft / 330.00 ft x 41.00 ft x 14.00 ft (normal load)
   100.58 m / 100.58 m x 12.50 m  x 4.27 m

Armament:
      2 - 4.85" / 123 mm guns in single mounts, 55.00lbs / 24.95kg shells, 1900 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
      8 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1900 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 114 lbs / 52 kg
   Shells per gun, main battery: 170

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -

Machinery:
   Oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 2,577 ihp / 1,923 Kw = 14.80 kts
   Range 11,500nm at 10.00 kts
   Bunker at max displacement = 961 tons

Complement:
   199 - 259

Cost:
   £0.145 million / $0.581 million

Distribution of weights at normal displacement:
   Armament: 15 tons, 0.5 %
   Armour: 5 tons, 0.2 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 5 tons, 0.2 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 366 tons, 12.5 %
   Hull, fittings & equipment: 744 tons, 25.3 %
   Fuel, ammunition & stores: 603 tons, 20.6 %
   Miscellaneous weights: 1,200 tons, 40.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,294 lbs / 1,494 Kg = 57.8 x 4.9 " / 123 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 1.5 ft / 0.5 m
   Roll period: 13.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 53 %
         - Recoil effect (Restricted arc if above 1.00): 0.04
   Seaboat quality  (Average = 1.00): 1.52

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.542
   Length to Beam Ratio: 8.05 : 1
   'Natural speed' for length: 18.17 kts
   Power going to wave formation at top speed: 34 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): -12.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      12.00 ft / 3.66 m
      - Forecastle (20 %):   11.00 ft / 3.35 m
      - Mid (50 %):      10.00 ft / 3.05 m
      - Quarterdeck (15 %):   10.00 ft / 3.05 m
      - Stern:      11.00 ft / 3.35 m
      - Average freeboard:   10.51 ft / 3.20 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 89.3 %
      - Above water (accommodation/working, high = better): 91.8 %
   Waterplane Area: 9,372 Square feet or 871 Square metres
   Displacement factor (Displacement / loading): 143 %
   Structure weight / hull surface area: 53 lbs/sq ft or 258 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.19
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Ship Designed to Support 10 TB-01 class Torpedo Boats

Misc Weights:
534 tons - Additional Bunkerage
60 tons  - Reload Torpedoes
25 tons - Long range Marconi
400 tons - Additional accomodations for 200 crew
181 tons - Shops, etc.

The Rock Doctor

I like the concept, a good use of an obsolete hull.

You've got a "capsize" warning - you'll need to play with the trim.

Guinness

Thanks for catching that. I've fixed it above.

It turns out these ships are just the right size to support 10 of the new TBs, not I just need to figure out the cost of conversion...

Guinness

Can someone double check my work on this? Here's what I figure for the costs of conversion

1200 tons of misc weight is 1.2 BP and $

minus scrap value of removed machinery and armor belt, which is 0.1524 BP and $ and 0.01095 BP and $ respectively.

Grand total then is 1.037 BP and $.

I'm not scrapping the unused 4.85" guns. I'll probably reuse them for shore defense later.

The Rock Doctor

There'd be a cost associated with changing fuel type, too.