Columbiad Republic Fleet

Carthaginian · May 18, 2012, 11:58:05 AM

Quote from: KWorld on May 18, 2012, 08:19:27 AM
A ship along the lines of IJN Satsuma, though modified to fit CRN guns. I'm not keen on all the hull casemates, but with all the 25cm turrets cluttering the sides, there's no other place to put the anti-torpedo boat battery.

Two words for you friend- and I use this tactic all the time- TURRET TOPS! ;)
They just have to know when it is time to lay flat. :)

KWorld · May 18, 2012, 12:10:25 PM

That would be appropriate for 70mms, MAYBE for 100mms, but not 150mm guns. 8)

Carthaginian · May 18, 2012, 12:14:35 PM

Quote from: KWorld on May 18, 2012, 12:10:25 PM
That would be appropriate for 70mms, MAYBE for 100mms, but not 150mm guns. 8)

I thought you WERE talking about the 100mm's! LOL!
I don't consider 155's an 'anti-TB' gun. ;)

KWorld · May 18, 2012, 12:25:51 PM

The CRN is frightened of torpedoes, it wants TBs definitively stopped well away from it's ships, and a hit from a 150mm will do that. :)

KWorld · May 21, 2012, 07:43:36 AM

An alternative AC to to the previous AC00.

Unk-AC00, Unknown Unk-AC00 laid down 1900

Displacement:
   13,035 t light; 13,682 t standard; 14,578 t normal; 15,295 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (531.50 ft / 524.93 ft) x 65.62 ft x (28.22 / 29.28 ft)
   (162.00 m / 160.00 m) x 20.00 m x (8.60 / 8.93 m)

Armament:
4 - 9.84" / 250 mm 45.0 cal guns - 480.81lbs / 218.09kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1900 Model
     2 x Twin mounts on centreline ends, evenly spread
4 - 9.84" / 250 mm 45.0 cal guns - 480.81lbs / 218.09kg shells, 100 per gun
     Breech loading guns in casemate mounts, 1900 Model
     4 x Single mounts on sides, evenly spread
10 - 5.91" / 150 mm 45.0 cal guns - 100.31lbs / 45.50kg shells, 180 per gun
     Breech loading guns in casemate mounts, 1900 Model
     10 x Single mounts on sides, evenly spread
      4 hull mounts in casemates- Limited use in all but light seas
8 - 2.76" / 70.0 mm 40.0 cal guns - 10.03lbs / 4.55kg shells, 400 per gun
     Quick firing guns in deck mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
20 - 1.18" / 30.0 mm 45.0 cal guns - 0.83lbs / 0.38kg shells, 200 per gun
     Quick firing guns in deck mounts, 1900 Model
     16 x Single mounts layout not set
     4 x 5-gun mounts on side ends, evenly spread
      4 double raised mounts
Weight of broadside 4,946 lbs / 2,244 kg
Main Torpedoes
4 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.579 t each, 2.318 t total
   submerged side tubes
2nd Torpedoes
12 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.579 t each, 6.954 t total
   below water reloads

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   8.66" / 220 mm   459.32 ft / 140.00 m   12.30 ft / 3.75 m
   Ends:   3.94" / 100 mm     65.58 ft / 19.99 m   12.30 ft / 3.75 m
   Upper:   3.94" / 100 mm   104.99 ft / 32.00 m   8.20 ft / 2.50 m
     Main Belt covers 135 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.6" / 270 mm   7.09" / 180 mm      9.84" / 250 mm
   2nd:   7.87" / 200 mm     -         3.94" / 100 mm
   3rd:   3.94" / 100 mm     -         3.94" / 100 mm
   4th:   0.39" / 10 mm     -           -

- Armoured deck - single deck:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm Quarter deck: 1.18" / 30 mm

- Conning towers: Forward 9.84" / 250 mm, Aft 3.94" / 100 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 31,280 ihp / 23,335 Kw = 23.00 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 1,613 tons (95% coal)

Complement:
   663 - 862

Cost:
   £1.461 million / $5.844 million

Distribution of weights at normal displacement:
   Armament: 890 tons, 6.1 %
     - Guns: 876 tons, 6.0 %
     - Weapons: 13 tons, 0.1 %
   Armour: 3,590 tons, 24.6 %
     - Belts: 2,254 tons, 15.5 %
     - Armament: 642 tons, 4.4 %
     - Armour Deck: 517 tons, 3.5 %
     - Conning Towers: 177 tons, 1.2 %
   Machinery: 4,863 tons, 33.4 %
   Hull, fittings & equipment: 3,679 tons, 25.2 %
   Fuel, ammunition & stores: 1,543 tons, 10.6 %
   Miscellaneous weights: 13 tons, 0.1 %
     - Hull below water: 13 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,886 lbs / 3,577 Kg = 16.5 x 9.8 " / 250 mm shells or 2.6 torpedoes
   Stability (Unstable if below 1.00): 1.31
   Metacentric height 4.3 ft / 1.3 m
   Roll period: 13.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.42
   Seaboat quality (Average = 1.00): 1.30

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.525 / 0.531
   Length to Beam Ratio: 8.00 : 1
   'Natural speed' for length: 22.91 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   Bow angle (Positive = bow angles forward): 5.00 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 %, 22.15 ft / 6.75 m, 18.86 ft / 5.75 m
     - Forward deck:   20.00 %, 18.86 ft / 5.75 m, 18.86 ft / 5.75 m
     - Aft deck:   45.00 %, 10.66 ft / 3.25 m, 10.66 ft / 3.25 m
     - Quarter deck:   15.00 %, 10.66 ft / 3.25 m, 10.66 ft / 3.25 m
     - Average freeboard:      14.21 ft / 4.33 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 130.3 %
      - Above water (accommodation/working, high = better): 89.0 %
   Waterplane Area: 23,484 Square feet or 2,182 Square metres
   Displacement factor (Displacement / loading): 89 %
   Structure weight / hull surface area: 114 lbs/sq ft or 558 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.40
      - Overall: 1.01
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Note: the 35mm guns are similar to the multi-barrel Hotchkiss revolving guns.

Miscellaneous weight accounts for the 12 450mm torpedoes carried.

Carthaginian · May 21, 2012, 12:59:40 PM

Scharnhorst!
I love it!

KWorld · May 22, 2012, 06:46:45 AM

And a coast defense ship, to round out options.

CD-08, Columbiad Republic Coast defence ship laid down 1908

Displacement:
   5,385 t light; 5,750 t standard; 5,939 t normal; 6,090 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (400.26 ft / 393.70 ft) x 59.06 ft x (16.40 / 16.73 ft)
   (122.00 m / 120.00 m) x 18.00 m x (5.00 / 5.10 m)

Armament:
4 - 9.84" / 250 mm 45.0 cal guns - 480.81lbs / 218.09kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1905 Model
     2 x Twin mounts on centreline ends, evenly spread
10 - 5.91" / 150 mm 45.0 cal guns - 100.31lbs / 45.50kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1905 Model
     10 x Single mounts on sides, evenly spread
8 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 400 per gun
     Breech loading guns in deck mounts, 1905 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
8 - 0.43" / 11.0 mm 90.0 cal guns - 0.05lbs / 0.02kg shells, 2,000 per gun
     Machine guns in deck mounts, 1905 Model
     8 x Single mounts on side ends, evenly spread
      8 double raised mounts
Weight of broadside 3,173 lbs / 1,439 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.91" / 150 mm   255.91 ft / 78.00 m   10.66 ft / 3.25 m
   Ends:   5.91" / 150 mm   137.76 ft / 41.99 m   10.66 ft / 3.25 m
   Upper:   5.91" / 150 mm   255.91 ft / 78.00 m   8.20 ft / 2.50 m
     Main Belt covers 100 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.45" / 240 mm   5.91" / 150 mm      7.87" / 200 mm
   3rd:   0.39" / 10 mm     -           -

- Armoured deck - multiple decks:
   For and Aft decks: 1.18" / 30 mm
   Forecastle: 1.18" / 30 mm Quarter deck: 1.18" / 30 mm

- Conning towers: Forward 9.45" / 240 mm, Aft 5.91" / 150 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 4,093 ihp / 3,053 Kw = 15.00 kts
   Range 3,000nm at 8.00 kts
   Bunker at max displacement = 340 tons (100% coal)

Complement:
   337 - 439

Cost:
   £0.482 million / $1.927 million

Distribution of weights at normal displacement:
   Armament: 622 tons, 10.5 %
     - Guns: 622 tons, 10.5 %
   Armour: 2,382 tons, 40.1 %
     - Belts: 1,553 tons, 26.1 %
     - Armament: 365 tons, 6.1 %
     - Armour Deck: 356 tons, 6.0 %
     - Conning Towers: 108 tons, 1.8 %
   Machinery: 372 tons, 6.3 %
   Hull, fittings & equipment: 2,010 tons, 33.8 %
   Fuel, ammunition & stores: 553 tons, 9.3 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     9,999 lbs / 4,536 Kg = 21.0 x 9.8 " / 250 mm shells or 2.4 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 3.1 ft / 0.9 m
   Roll period: 14.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.52
   Seaboat quality (Average = 1.00): 1.25

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.545 / 0.548
   Length to Beam Ratio: 6.67 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 33 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 5.00 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 %, 19.69 ft / 6.00 m, 17.22 ft / 5.25 m
     - Forward deck:   15.00 %, 17.22 ft / 5.25 m, 17.22 ft / 5.25 m
     - Aft deck:   50.00 %, 9.02 ft / 2.75 m, 9.02 ft / 2.75 m
     - Quarter deck:   15.00 %, 9.02 ft / 2.75 m, 9.02 ft / 2.75 m
     - Average freeboard:      12.09 ft / 3.69 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 59.4 %
      - Above water (accommodation/working, high = better): 99.6 %
   Waterplane Area: 16,150 Square feet or 1,500 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 106 lbs/sq ft or 520 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.38
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

KWorld · May 23, 2012, 08:25:10 AM

A relatively modern light cruiser, armed with a mixed battery of centerline 15cms and 10cms on the beams.

CR-C06, Columbiad Republic Light Cruiser laid down 1906

Displacement:
   4,032 t light; 4,191 t standard; 4,895 t normal; 5,458 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (465.88 ft / 459.32 ft) x 45.93 ft x (16.24 / 17.64 ft)
   (142.00 m / 140.00 m) x 14.00 m x (4.95 / 5.38 m)

Armament:
3 - 5.91" / 150 mm 45.0 cal guns - 100.31lbs / 45.50kg shells, 180 per gun
     Breech loading guns in deck and hoist mounts, 1905 Model
     3 x Single mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
6 - 3.94" / 100 mm 45.0 cal guns - 30.78lbs / 13.96kg shells, 300 per gun
     Quick firing guns in deck mounts, 1906 Model
     6 x Single mounts on sides, evenly spread
8 - 0.43" / 11.0 mm 90.0 cal guns - 0.04lbs / 0.02kg shells, 2,000 per gun
     Machine guns in deck mounts, 1906 Model
     8 x Single mounts on side ends, evenly spread
      8 double raised mounts
Weight of broadside 486 lbs / 220 kg
Main Torpedoes
8 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.861 t each, 6.886 t total
   In 4 sets of deck mounted side rotating tubes

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   393.70 ft / 120.00 m   11.48 ft / 3.50 m
   Ends:   Unarmoured
     Main Belt covers 132 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm     -         1.97" / 50 mm
   2nd:   0.39" / 10 mm     -           -

- Armoured deck - single deck:
   For and Aft decks: 0.79" / 20 mm
   Forecastle: 0.00" / 0 mm Quarter deck: 0.79" / 20 mm

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

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 26,136 shp / 19,498 Kw = 26.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 1,267 tons (90% coal)

Complement:
   292 - 380

Cost:
   £0.439 million / $1.754 million

Distribution of weights at normal displacement:
   Armament: 130 tons, 2.7 %
     - Guns: 117 tons, 2.4 %
     - Weapons: 14 tons, 0.3 %
   Armour: 573 tons, 11.7 %
     - Belts: 349 tons, 7.1 %
     - Armament: 23 tons, 0.5 %
     - Armour Deck: 188 tons, 3.8 %
     - Conning Tower: 12 tons, 0.2 %
   Machinery: 1,848 tons, 37.8 %
   Hull, fittings & equipment: 1,466 tons, 30.0 %
   Fuel, ammunition & stores: 863 tons, 17.6 %
   Miscellaneous weights: 14 tons, 0.3 %
     - On freeboard deck: 14 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,372 lbs / 1,529 Kg = 32.7 x 5.9 " / 150 mm shells or 1.1 torpedoes
   Stability (Unstable if below 1.00): 1.42
   Metacentric height 2.9 ft / 0.9 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.18
   Seaboat quality (Average = 1.00): 1.21

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.513
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 21.43 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 5.00 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 %, 22.97 ft / 7.00 m, 18.04 ft / 5.50 m
     - Forward deck:   15.00 %, 18.04 ft / 5.50 m, 18.04 ft / 5.50 m
     - Aft deck:   50.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
     - Quarter deck:   15.00 %, 9.84 ft / 3.00 m, 9.84 ft / 3.00 m
     - Average freeboard:      13.11 ft / 4.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 130.4 %
      - Above water (accommodation/working, high = better): 104.9 %
   Waterplane Area: 14,057 Square feet or 1,306 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 70 lbs/sq ft or 341 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.00
      - Longitudinal: 1.05
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Miscellaneous weight added to accommodate 8 450mm torpedoes in their launch tubes.

KWorld · May 24, 2012, 11:07:26 AM

And another take at the fast battleship concept....

BC08, Columbiad Republic Battleship laid down 1908

Displacement:
   17,474 t light; 18,386 t standard; 19,999 t normal; 21,290 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (547.90 ft / 541.34 ft) x 78.74 ft x (31.28 / 32.83 ft)
   (167.00 m / 165.00 m) x 24.00 m x (9.53 / 10.01 m)

Armament:
6 - 12.01" / 305 mm 45.0 cal guns - 873.08lbs / 396.02kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1908 Model
     3 x Twin mounts on centreline, evenly spread
16 - 5.91" / 150 mm 45.0 cal guns - 103.86lbs / 47.11kg shells, 180 per gun
     Breech loading guns in casemate mounts, 1908 Model
     16 x Single mounts on sides, evenly spread
      6 hull mounts in casemates- Limited use in heavy seas
8 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 400 per gun
     Quick firing guns in deck mounts, 1908 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
8 - 0.43" / 11.0 mm 90.0 cal guns - 0.05lbs / 0.02kg shells, 2,000 per gun
     Machine guns in deck mounts, 1908 Model
     8 x Single mounts on side ends, evenly spread
      8 double raised mounts
Weight of broadside 7,147 lbs / 3,242 kg
Main Torpedoes
4 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.827 t each, 3.309 t total
   submerged side tubes
2nd Torpedoes
12 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.827 t each, 9.927 t total
   below water reloads

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11.8" / 300 mm   360.89 ft / 110.00 m   14.76 ft / 4.50 m
   Ends:   7.87" / 200 mm   180.41 ft / 54.99 m   14.76 ft / 4.50 m
   Upper:   5.91" / 150 mm   360.89 ft / 110.00 m   8.20 ft / 2.50 m
     Main Belt covers 103 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
      1.18" / 30 mm   360.89 ft / 110.00 m   28.18 ft / 8.59 m
   Beam between torpedo bulkheads 65.62 ft / 20.00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12.6" / 320 mm   7.09" / 180 mm      11.8" / 300 mm
   2nd:   5.91" / 150 mm     -         3.94" / 100 mm
   3rd:   0.39" / 10 mm     -           -

- Armoured deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.18" / 30 mm Quarter deck: 1.97" / 50 mm

- Conning towers: Forward 12.60" / 320 mm, Aft 5.91" / 150 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 38,105 ihp / 28,427 Kw = 23.00 kts
   Range 6,000nm at 12.00 kts
   Bunker at max displacement = 2,904 tons (90% coal)

Complement:
   840 - 1,093

Cost:
   £1.671 million / $6.686 million

Distribution of weights at normal displacement:
   Armament: 1,243 tons, 6.2 %
     - Guns: 1,224 tons, 6.1 %
     - Weapons: 19 tons, 0.1 %
   Armour: 7,200 tons, 36.0 %
     - Belts: 4,209 tons, 21.0 %
     - Torpedo bulkhead: 444 tons, 2.2 %
     - Armament: 1,224 tons, 6.1 %
     - Armour Deck: 1,029 tons, 5.1 %
     - Conning Towers: 294 tons, 1.5 %
   Machinery: 3,430 tons, 17.1 %
   Hull, fittings & equipment: 5,581 tons, 27.9 %
   Fuel, ammunition & stores: 2,526 tons, 12.6 %
   Miscellaneous weights: 20 tons, 0.1 %
     - Hull below water: 20 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     21,406 lbs / 9,710 Kg = 24.7 x 12.0 " / 305 mm shells or 5.2 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 4.8 ft / 1.5 m
   Roll period: 15.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.46
   Seaboat quality (Average = 1.00): 1.25

Hull form characteristics:
   Hull has rise forward of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0.525 / 0.532
   Length to Beam Ratio: 6.88 : 1
   'Natural speed' for length: 23.27 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 5.00 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 %, 24.61 ft / 7.50 m, 21.33 ft / 6.50 m
     - Forward deck:   20.00 %, 21.33 ft / 6.50 m, 21.33 ft / 6.50 m
     - Aft deck:   45.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
     - Quarter deck:   15.00 %, 13.12 ft / 4.00 m, 13.12 ft / 4.00 m
     - Average freeboard:      16.67 ft / 5.08 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 100.5 %
      - Above water (accommodation/working, high = better): 103.1 %
   Waterplane Area: 29,061 Square feet or 2,700 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 139 lbs/sq ft or 681 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.58
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Miscellaneous weight accommodates the 12 450mm torpedoes carried.

Carthaginian · May 24, 2012, 11:18:13 AM

A logical and interesting successor for a fleet containing Tsukuba and Ibuki style 'super armored cruisers' (you can't really call them 'battleships' or 'battle cruisers') .

KWorld · May 25, 2012, 06:40:12 AM

CR-TB07, Columbiad Republic Torpedo Boat laid down 1907

Displacement:
   356 t light; 368 t standard; 439 t normal; 496 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (204.92 ft / 203.41 ft) x 19.69 ft x (9.84 / 10.65 ft)
   (62.46 m / 62.00 m) x 6.00 m x (3.00 / 3.25 m)

Armament:
3 - 2.76" / 70.0 mm 45.0 cal guns - 10.56lbs / 4.79kg shells, 200 per gun
     Breech loading guns in deck mounts, 1907 Model
     3 x Single mounts on centreline, evenly spread
      1 raised mount
4 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 1,200 per gun
     Machine guns in deck mounts, 1907 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
Weight of broadside 32 lbs / 14 kg
Main Torpedoes
4 - 17.7" / 450 mm, 19.69 ft / 6.00 m torpedoes - 0.897 t each, 3.587 t total
   In 2 sets of deck mounted centre rotating tubes

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 8,019 shp / 5,982 Kw = 26.00 kts
   Range 2,200nm at 12.00 kts
   Bunker at max displacement = 127 tons (90% coal)

Complement:
   47 - 62

Cost:
   £0.047 million / $0.190 million

Distribution of weights at normal displacement:
   Armament: 13 tons, 2.9 %
     - Guns: 6 tons, 1.3 %
     - Weapons: 7 tons, 1.6 %
   Machinery: 237 tons, 54.0 %
   Hull, fittings & equipment: 99 tons, 22.6 %
   Fuel, ammunition & stores: 83 tons, 18.9 %
   Miscellaneous weights: 7 tons, 1.6 %
     - Hull above water: 7 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     102 lbs / 46 Kg = 9.8 x 2.8 " / 70 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.38
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 9.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.12
   Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.390 / 0.407
   Length to Beam Ratio: 10.33 : 1
   'Natural speed' for length: 14.26 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 5.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   15.00 %, 17.22 ft / 5.25 m, 14.76 ft / 4.50 m
     - Forward deck:   10.00 %, 14.76 ft / 4.50 m, 14.76 ft / 4.50 m
     - Aft deck:   60.00 %, 6.56 ft / 2.00 m, 6.56 ft / 2.00 m
     - Quarter deck:   15.00 %, 6.56 ft / 2.00 m, 6.56 ft / 2.00 m
     - Average freeboard:      8.76 ft / 2.67 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 180.3 %
      - Above water (accommodation/working, high = better): 52.1 %
   Waterplane Area: 2,448 Square feet or 227 Square metres
   Displacement factor (Displacement / loading): 43 %
   Structure weight / hull surface area: 19 lbs/sq ft or 92 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.20
      - Overall: 0.58
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

KWorld · May 25, 2012, 09:28:59 AM

And a useful, if small, vessel.....

LC-05, Columbiad Republic Cargo Lighter laid down 1905

Displacement:
   170 t light; 173 t standard; 175 t normal; 177 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (114.83 ft / 114.83 ft) x 26.25 ft x (3.28 / 3.30 ft)
   (35.00 m / 35.00 m) x 8.00 m x (1.00 / 1.01 m)

Armament:
2 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 1,200 per gun
     Machine guns in deck mounts, 1900 Model
     2 x Single mounts on sides, aft deck aft
Weight of broadside 0 lbs / 0 kg

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 15 ihp / 11 Kw = 5.00 kts
   Range 600nm at 4.00 kts
   Bunker at max displacement = 3 tons (100% coal)

Complement:
   23 - 31

Cost:
   £0.006 million / $0.025 million

Distribution of weights at normal displacement:
   Armament: 0 tons, 0.1 %
     - Guns: 0 tons, 0.1 %
   Machinery: 3 tons, 1.5 %
   Hull, fittings & equipment: 74 tons, 42.3 %
   Fuel, ammunition & stores: 5 tons, 3.1 %
   Miscellaneous weights: 93 tons, 53.1 %
     - Hull below water: 50 tons
     - Hull void weights: 13 tons
     - Hull above water: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     803 lbs / 364 Kg = 51,390.6 x 0.3 " / 8 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.70
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 8.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.620 / 0.621
   Length to Beam Ratio: 4.38 : 1
   'Natural speed' for length: 10.72 kts
   Power going to wave formation at top speed: 15 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %, 11.48 ft / 3.50 m, 9.84 ft / 3.00 m
     - Forward deck:   30.00 %, 9.84 ft / 3.00 m, 7.38 ft / 2.25 m
     - Aft deck:   35.00 %, 7.38 ft / 2.25 m, 7.38 ft / 2.25 m
     - Quarter deck:   15.00 %, 7.38 ft / 2.25 m, 7.38 ft / 2.25 m
     - Average freeboard:      8.37 ft / 2.55 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 55.6 %
      - Above water (accommodation/working, high = better): 147.9 %
   Waterplane Area: 2,246 Square feet or 209 Square metres
   Displacement factor (Displacement / loading): 178 %
   Structure weight / hull surface area: 25 lbs/sq ft or 121 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.87
      - Longitudinal: 3.71
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The Cargo Lighter is a small vessel intended to carry heavy equipment (such as steam shovels, tractors) and cargo to and from an unimproved coastal site. The "void weight" accounts for a bow door and a small crane.

KWorld · May 25, 2012, 10:09:51 AM

Lighter Carrier, Civillian Freighter laid down 1905

Displacement:
   5,871 t light; 5,996 t standard; 6,193 t normal; 6,351 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (360.89 ft / 360.89 ft) x 49.21 ft x (19.69 / 20.11 ft)
   (110.00 m / 110.00 m) x 15.00 m x (6.00 / 6.13 m)

Armament:
2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.75kg shells, 150 per gun
     Quick firing guns in deck mounts, 1895 Model
     2 x Single mounts on sides, forward deck forward
      2 raised mounts
4 - 0.31" / 8.0 mm 70.0 cal guns - 0.02lbs / 0.01kg shells, 1,200 per gun
     Machine guns in deck mounts, 1900 Model
     4 x Single mounts on side ends, evenly spread
      4 double raised mounts
Weight of broadside 8 lbs / 4 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 1,055 ihp / 787 Kw = 10.00 kts
   Range 3,000nm at 8.00 kts
   Bunker at max displacement = 355 tons (100% coal)

Complement:
   348 - 453

Cost:
   £0.227 million / $0.910 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0.0 %
     - Guns: 2 tons, 0.0 %
   Machinery: 153 tons, 2.5 %
   Hull, fittings & equipment: 1,197 tons, 19.3 %
   Fuel, ammunition & stores: 322 tons, 5.2 %
   Miscellaneous weights: 4,520 tons, 73.0 %
     - Hull below water: 2,000 tons
     - Hull above water: 1,400 tons
     - On freeboard deck: 680 tons
     - Above deck: 440 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,060 lbs / 3,203 Kg = 1,851.2 x 2.0 " / 50 mm shells or 1.7 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 2.1 ft / 0.6 m
   Roll period: 14.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0.00
   Seaboat quality (Average = 1.00): 1.52

Hull form characteristics:
   Hull has rise forward of midbreak, raised quarterdeck ,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.620 / 0.622
   Length to Beam Ratio: 7.33 : 1
   'Natural speed' for length: 19.00 kts
   Power going to wave formation at top speed: 20 %
   Trim (Max stability = 0, Max steadiness = 100): 40
   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 %, 19.69 ft / 6.00 m, 16.40 ft / 5.00 m
     - Forward deck:   0.00 %, 16.40 ft / 5.00 m, 16.40 ft / 5.00 m
     - Aft deck:   65.00 %, 8.20 ft / 2.50 m, 8.20 ft / 2.50 m
     - Quarter deck:   15.00 %, 16.40 ft / 5.00 m, 16.40 ft / 5.00 m
     - Average freeboard:      11.34 ft / 3.46 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 68.5 %
      - Above water (accommodation/working, high = better): 58.2 %
   Waterplane Area: 12,987 Square feet or 1,207 Square metres
   Displacement factor (Displacement / loading): 128 %
   Structure weight / hull surface area: 61 lbs/sq ft or 296 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.21
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

The Lighter Carrier is a somewhat specialized vessel, which carries 4 35m cargo lighters on large cranes on either side of the hull. When cruising, the lighters are stored on the main deck, and they are swung out and lowered into the water when needed. The same large cranes used to lower the lighters into the water are also used to lift cargo out of the hold and then down into lighters tied up along side.

Carthaginian · May 26, 2012, 11:00:20 PM

Quote from: KWorld on May 25, 2012, 10:09:51 AM
The Lighter Carrier is a somewhat specialized vessel, which carries 4 30m cargo lighters on large cranes on either side of the hull. When cruising, the lighters are stored on the main deck, and they are swung out and lowered into the water when needed. The same large cranes used to lower the lighters into the water are also used to lift cargo out of the hold and then down into lighters tied up along side.

And if those vessels are wind up carrying small torpedo boats in place of lighters... well, stuff happens.

I like this idea.
Excellent merchant ship, and also a crafty auxiliary.

KWorld · May 27, 2012, 04:17:55 AM

Such things COULD happen, though the TBs would be limited in length to about 35m. I'll admit, the idea DID come from the torpedo boat motherships of the 1890s, I just turned it around to a use that has to do with the idea of "resource raids" on other islands and the need to land heavy equipment before there's a harbor.