Ships of the Mark: 1907

Started by Ithekro, April 14, 2007, 07:51:30 PM

Previous topic - Next topic

Ithekro

The Kingdom of Rohan, now having several years of experiance as a World Power, has decided to set forth a proposed building plan.  While that plan may take time to fully form there are some basics that need to be addressed.

1.  The Mark needs to build more destroyers or torpedo boats so the older vessels can be retired and because the Mark is short in that area to begin with.

2.  The Mark might see fit to replace the aging protected cruisers with something lighter than belted cruisers as those prove to be expessive.  A return to something of a scouting cruiser or light cruiser may be warrented for the fleet, or perhaps built instead of more destroyers.

3.  Rohan will probably move to building belted cruiser instead of combat cruisers as the combat cruisers are very expensive and it seems there role in the fleet might be taken by the new battlescruisers.

4. In theory Rohan should have one battlecruiser or combat cruiser for every battleship in the fleet.  Presently that is not  the case even with the Snowmane and Valindal under construction.  If one counts the three more powerful belted cruisers and the armored cruisers then the Mark is about at normal levels.  Since the expense to maintian this ideal would be prohibative, it has been suggested that the new fleet ration by 2 battleships to one battlecruiser or combat cruiser/armored cruiser.

5.  Rohan will investigate the idea of fleet matching for both the Pacific and Caribbean Fleets.  While Rohan does not see a clear opponent for the near future, planners have suggested attempting to match the total capital ship production of both the United Norman Kingdoms and the Empire of Nippon.  However, planner have also realized that attempting to match these two powers, while expessive, would also in turn be matching the total prodection of the Russian Empire, which is the number two fleet after France.  Planners have realized that matching France, even with their long stalled naval construction plan, would be next to impossible.  Matching Russia would be nearly impossible, as would matching both of the other two powers as the capital ships of the Mark would have to nearly double to match the currect numbers of ships in the Imperial Japanese Navy and the Royal Navy combined.   Planners will go over the budgets and materials avalible to see if this part of the plan is even possible.

6. Fleet speed standardization.  The Mark does not have a set fleet speed at this time as the technology of the last two decades as jumped the speed of ships from 13 knots to 20 knots for capital ships, and now 24 knots for battlecruisers and combat cruisers.  The Mark is looking to set the battleship speed at 20-21 knots, with maybe having some ships that can make 23-24 knots if needed.  These faster battleships should be able to run down foreign battleships.  This was not standard practise even two years ago as most of out ships were slower than anyone else's.  Now the Mark has finally caught up in speed and maintains somewhat of a hold on the edge of heavy firepower like it has tried to maintain for the last two decades.  Hopefully we can maintian what edges we have.

Ithekro

#1
A new destroyer design, improving on the Shearfoot-class by making the vessel lighter with newer turbines and oil fired boilers.  Everything else is about the same.

Running Wolf
(+ 5 others in 1907)

Rohan Destroyer laid down 1907 (Engine 1909)

Displacement:
   731 t light; 765 t standard; 875 t normal; 960 t full load

Dimensions: Length overall / water x beam x draught
   270.00 ft / 270.00 ft x 30.00 ft x 8.00 ft (normal load)
   82.30 m / 82.30 m x 9.14 m  x 2.44 m

Armament:
      2 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1907 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
      2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1907 Model
     Quick firing guns in deck mounts
     on centreline, all amidships
      4 - 0.75" / 19.1 mm guns in single mounts, 0.21lbs / 0.10kg shells, 1907 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 119 lbs / 54 kg
   Shells per gun, main battery: 225
   4 - 16.0" / 406.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -
   2nd:   1.00" / 25 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 1 shaft, 11,500 shp / 8,579 Kw = 26.05 kts
   Range 2,000nm at 15.00 kts (Bunkerage = 199 tons)

Complement:
   79 - 104

Cost:
   £0.094 million / $0.377 million

Distribution of weights at normal displacement:
   Armament: 15 tons, 1.7 %
   Armour: 8 tons, 0.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 8 tons, 0.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 402 tons, 46.0 %
   Hull, fittings & equipment: 276 tons, 31.5 %
   Fuel, ammunition & stores: 144 tons, 16.5 %
   Miscellaneous weights: 30 tons, 3.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     385 lbs / 175 Kg = 8.5 x 4.5 " / 114 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.41
   Metacentric height 1.5 ft / 0.5 m
   Steadiness   - As gun platform (Average = 50 %): 77 %
         - Recoil effect (Restricted arc if above 1.00): 0.18
   Seaboat quality  (Average = 1.00): 1.54

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.473
   Length to Beam Ratio: 9.00 : 1
   'Natural speed' for length: 16.43 kts
   Power going to wave formation at top speed: 64 %
   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 (% = measuring location as a percentage of overall length):
      - Stem:      18.00 ft / 5.49 m
      - Forecastle (20 %):   14.00 ft / 4.27 m
      - Mid (50 %):      14.00 ft / 4.27 m
      - Quarterdeck (15 %):   14.00 ft / 4.27 m
      - Stern:      14.00 ft / 4.27 m
      - Average freeboard:   14.32 ft / 4.36 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 166.0 %
      - Above water (accommodation/working, high = better): 142.7 %
   Waterplane Area: 5,267 Square feet or 489 Square metres
   Displacement factor (Displacement / loading): 73 %
   Structure weight / hull surface area: 26 lbs/sq ft or 127 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.99
      - Overall: 0.60
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Ithekro

#2
A new belted cruiser for the year 1907

Silvertine
Cloudheady (layed down 1908)
Redhorn (layed down 1908)

Rohan Belted Cruiser laid down 1907 (Engine 1909)

Displacement:
   8,639 t light; 9,055 t standard; 10,000 t normal; 10,716 t full load

Dimensions: Length overall / water x beam x draught
   490.00 ft / 490.00 ft x 69.00 ft x 21.00 ft (normal load)
   149.35 m / 149.35 m x 21.03 m  x 6.40 m

Armament:
      8 - 7.50" / 191 mm guns (4x2 guns), 210.94lbs / 95.68kg shells, 1907 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      16 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1907 Model
     Quick firing guns in deck mounts
     on side, evenly spread, 8 raised mounts
      8 - 0.75" / 19.1 mm guns in single mounts, 0.21lbs / 0.10kg shells, 1907 Model
     Machine guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 2,418 lbs / 1,097 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.00" / 127 mm   420.00 ft / 128.02 m   11.00 ft / 3.35 m
   Ends:   5.00" / 127 mm     10.00 ft / 3.05 m   11.00 ft / 3.35 m
     60.00 ft / 18.29 m Unarmoured ends
     Main Belt covers 132 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.00" / 127 mm   5.00" / 127 mm      5.00" / 127 mm
   2nd:   4.00" / 102 mm         -               -
   3rd:   0.75" / 19 mm         -               -

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 38,000 shp / 28,348 Kw = 25.47 kts
   Range 7,000nm at 12.00 kts (Bunkerage = 1,702 tons)

Complement:
   499 - 650

Cost:
   £0.798 million / $3.192 million

Distribution of weights at normal displacement:
   Armament: 302 tons, 3.0 %
   Armour: 2,540 tons, 25.4 %
      - Belts: 956 tons, 9.6 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 739 tons, 7.4 %
      - Armour Deck: 795 tons, 8.0 %
      - Conning Tower: 50 tons, 0.5 %
   Machinery: 1,727 tons, 17.3 %
   Hull, fittings & equipment: 3,995 tons, 40.0 %
   Fuel, ammunition & stores: 1,361 tons, 13.6 %
   Miscellaneous weights: 75 tons, 0.8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15,648 lbs / 7,098 Kg = 74.2 x 7.5 " / 191 mm shells or 2.2 torpedoes
   Stability (Unstable if below 1.00): 1.16
   Metacentric height 3.8 ft / 1.2 m
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.49
   Seaboat quality  (Average = 1.00): 1.57

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.493
   Length to Beam Ratio: 7.10 : 1
   'Natural speed' for length: 22.14 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 45
   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:      28.00 ft / 8.53 m
      - Forecastle (20 %):   22.00 ft / 6.71 m
      - Mid (50 %):      22.00 ft / 6.71 m
      - Quarterdeck (15 %):   22.00 ft / 6.71 m
      - Stern:      22.00 ft / 6.71 m
      - Average freeboard:   22.48 ft / 6.85 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 80.9 %
      - Above water (accommodation/working, high = better): 180.5 %
   Waterplane Area: 21,488 Square feet or 1,996 Square metres
   Displacement factor (Displacement / loading): 118 %
   Structure weight / hull surface area: 115 lbs/sq ft or 562 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.91
      - Longitudinal: 2.26
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather


Ithekro

And for the Confederacy, five of this type will be built later in the year.

TR-1907X

to be laid down 1907 (Engine 1909)

Displacement:
   701 t light; 732 t standard; 815 t normal; 881 t full load

Dimensions: Length overall / water x beam x draught
   300.00 ft / 300.00 ft x 25.00 ft x 8.00 ft (normal load)
   91.44 m / 91.44 m x 7.62 m  x 2.44 m

Armament:
      4 - 4.00" / 102 mm guns in single mounts, 25.00lbs / 11.34kg shells, 1907 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      4 - 2.24" / 57.0 mm guns in single mounts, 5.65lbs / 2.56kg shells, 1907 Model
     Quick firing guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
      6 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1907 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 126 lbs / 57 kg
   Shells per gun, main battery: 200
   4 - 19.5" / 495.3 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.53" / 13 mm         -               -
   2nd:   0.53" / 13 mm         -               -
   3rd:   0.53" / 13 mm         -               -

   - Conning tower: 1.05" / 27 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 17,936 shp / 13,381 Kw = 30.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 149 tons

Complement:
   76 - 99

Cost:
   £0.100 million / $0.398 million

Distribution of weights at normal displacement:
   Armament: 19 tons, 2.4 %
   Armour: 10 tons, 1.2 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 8 tons, 1.0 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 2 tons, 0.2 %
   Machinery: 420 tons, 51.6 %
   Hull, fittings & equipment: 247 tons, 30.4 %
   Fuel, ammunition & stores: 114 tons, 14.0 %
   Miscellaneous weights: 4 tons, 0.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     235 lbs / 107 Kg = 7.4 x 4.0 " / 102 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.37
   Metacentric height 1.1 ft / 0.3 m
   Roll period: 10.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.29
   Seaboat quality  (Average = 1.00): 1.18

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.475
   Length to Beam Ratio: 12.00 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   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:      16.00 ft / 4.88 m
      - Forecastle (20 %):   11.75 ft / 3.58 m
      - Mid (50 %):      11.75 ft / 3.58 m
      - Quarterdeck (15 %):   11.75 ft / 3.58 m
      - Stern:      11.75 ft / 3.58 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): 185.3 %
      - Above water (accommodation/working, high = better): 98.3 %
   Waterplane Area: 4,888 Square feet or 454 Square metres
   Displacement factor (Displacement / loading): 45 %
   Structure weight / hull surface area: 24 lbs/sq ft or 117 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.76
      - Overall: 0.56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

Ithekro

And for the New Swiss (in theory) a new heavy cruiser with unreliable turbines and reused guns...potentially laid down later in the year.  (after some issues are worked out on how things work and how much profit should be gained from this project)

NSS Constellation


New Switzerland Heavy Cruiser laid down 1907 (Engine 1909)

Displacement:
   11,096 t light; 11,587 t standard; 13,200 t normal; 14,438 t full load

Dimensions: Length overall / water x beam x draught
   552.00 ft / 550.00 ft x 70.00 ft x 24.00 ft (normal load)
   168.25 m / 167.64 m x 21.34 m  x 7.32 m

Armament:
      8 - 8.00" / 203 mm guns (4x2 guns), 256.00lbs / 116.12kg shells, 1907 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      8 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1907 Model
     Breech loading guns in casemate mounts
     on side, all amidships
      8 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1907 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1907 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 3,184 lbs / 1,444 kg
   Shells per gun, main battery: 120
   8 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.00" / 178 mm   310.00 ft / 94.49 m   10.00 ft / 3.05 m
   Ends:   4.00" / 102 mm   240.00 ft / 73.15 m   10.00 ft / 3.05 m
   Upper:   4.00" / 102 mm   310.00 ft / 94.49 m   6.00 ft / 1.83 m
     Main Belt covers 87 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.00" / 178 mm   4.00" / 102 mm      7.00" / 178 mm
   2nd:   4.00" / 102 mm         -               -

   - Armour deck: 2.00" / 51 mm, Conning tower: 4.00" / 102 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 53,000 shp / 39,538 Kw = 26.89 kts
   Range 15,000nm at 10.00 kts (Bunkerage = 2,904 tons)

Complement:
   615 - 800

Cost:
   £1.060 million / $4.240 million

Distribution of weights at normal displacement:
   Armament: 398 tons, 3.0 %
   Armour: 3,405 tons, 25.8 %
      - Belts: 1,631 tons, 12.4 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 814 tons, 6.2 %
      - Armour Deck: 912 tons, 6.9 %
      - Conning Tower: 48 tons, 0.4 %
   Machinery: 2,409 tons, 18.3 %
   Hull, fittings & equipment: 4,735 tons, 35.9 %
   Fuel, ammunition & stores: 2,104 tons, 15.9 %
   Miscellaneous weights: 150 tons, 1.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     16,474 lbs / 7,473 Kg = 64.4 x 8.0 " / 203 mm shells or 2.2 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 3.4 ft / 1.0 m
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.54
   Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.500
   Length to Beam Ratio: 7.86 : 1
   'Natural speed' for length: 23.45 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 4.76 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      24.00 ft / 7.32 m
      - Forecastle (20 %):   19.00 ft / 5.79 m
      - Mid (50 %):      19.00 ft / 5.79 m
      - Quarterdeck (15 %):   19.00 ft / 5.79 m
      - Stern:      19.00 ft / 5.79 m
      - Average freeboard:   19.40 ft / 5.91 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 83.9 %
      - Above water (accommodation/working, high = better): 129.8 %
   Waterplane Area: 24,657 Square feet or 2,291 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 121 lbs/sq ft or 591 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.51
      - 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

Desertfox

Note on Constellation, the turbines are reliable up to 26 1/4 kts (48,000hp, 4 shafts) problems appear over that.
"We don't run from the end of the world. We CHARGE!" Schlock

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

Ithekro

#6
And just to see what people think, the 1909 Battlecruiser of the Mark.

Plan it for this vessel to have an improved turret over the Snowmane and Arcadia, and this have individual sleaves for each gun rather than one sleave for all three guns.  Also the use of the imported Confederate 6 inch guns and full oil fire on a slightly improved turbine (to keep her at 24 knots).  This vessel makes the improvements to several naval yards to Type 3 with Type 3 slips and dock a priority.  Also a fourth turret.

(Felaróf was the horse of Eorl the Young and father to all the mearas.)

Felaróf - to be laid down 1909
Arod - to be laid down 1910
Hasufel - to be laid down 1911

Rohan Battle Cruiser laid down 1909

Displacement:
   20,380 t light; 21,638 t standard; 23,250 t normal; 24,447 t full load

Dimensions: Length overall / water x beam x draught
   620.00 ft / 620.00 ft x 89.00 ft x 27.00 ft (normal load)
   188.98 m / 188.98 m x 27.13 m  x 8.23 m

Armament:
      12 - 12.00" / 305 mm guns (4x3 guns), 864.00lbs / 391.90kg shells, 1909 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1909 Model
     Breech loading guns in casemate mounts
     on side, evenly spread, 4 raised mounts
      4 - 1.50" / 38.1 mm guns in single mounts, 1.69lbs / 0.77kg shells, 1909 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread, all raised mounts
      6 - 0.75" / 19.1 mm guns in single mounts, 0.21lbs / 0.10kg shells, 1909 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 11,672 lbs / 5,294 kg
   Shells per gun, main battery: 120

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10.0" / 254 mm   420.00 ft / 128.02 m   11.00 ft / 3.35 m
   Ends:   3.00" / 76 mm   200.00 ft / 60.96 m   11.00 ft / 3.35 m
   Upper:   5.00" / 127 mm   420.00 ft / 128.02 m   9.00 ft / 2.74 m
     Main Belt covers 104 % of normal length

   - Torpedo Bulkhead:
      2.50" / 64 mm   420.00 ft / 128.02 m   24.00 ft / 7.32 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10.0" / 254 mm   5.00" / 127 mm      9.00" / 229 mm
   2nd:   5.00" / 127 mm         -               -

   - Armour deck: 2.00" / 51 mm, Conning tower: 10.00" / 254 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 48,000 shp / 35,808 Kw = 24.03 kts
   Range 7,000nm at 12.00 kts (Bunkerage = 2,901 tons)

Complement:
   940 - 1,223

Cost:
   £2.244 million / $8.977 million

Distribution of weights at normal displacement:
   Armament: 1,459 tons, 6.3 %
   Armour: 7,452 tons, 32.1 %
      - Belts: 3,032 tons, 13.0 %
      - Torpedo bulkhead: 932 tons, 4.0 %
      - Armament: 1,936 tons, 8.3 %
      - Armour Deck: 1,376 tons, 5.9 %
      - Conning Tower: 176 tons, 0.8 %
   Machinery: 2,182 tons, 9.4 %
   Hull, fittings & equipment: 9,187 tons, 39.5 %
   Fuel, ammunition & stores: 2,870 tons, 12.3 %
   Miscellaneous weights: 100 tons, 0.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     20,448 lbs / 9,275 Kg = 23.7 x 12.0 " / 305 mm shells or 3.3 torpedoes
   Stability (Unstable if below 1.00): 1.05
   Metacentric height 4.6 ft / 1.4 m
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.74
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.546
   Length to Beam Ratio: 6.97 : 1
   'Natural speed' for length: 24.90 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   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:      21.00 ft / 6.40 m
      - Forecastle (20 %):   17.00 ft / 5.18 m
      - Mid (50 %):      17.00 ft / 5.18 m
      - Quarterdeck (15 %):   17.00 ft / 5.18 m
      - Stern:      17.00 ft / 5.18 m
      - Average freeboard:   17.32 ft / 5.28 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): 128.1 %
   Waterplane Area: 37,191 Square feet or 3,455 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 175 lbs/sq ft or 857 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.24
      - 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


Earl822

Hmmm, big and powerful

Scurries off to design 24knot Dreadnought.

Ithekro

I found it rather difficult to build a 24 knot battlecruiser using existing turbine technology.  Of course Rohan tends to over guns thing, and is using all centerline/superimposed turret technology, so you might be able to make lighter armed and faster that is armored like a battleship within the 48,000 shp and 4 shaft limit of 1909 engines.

swamphen

Quote from: Ithekro on April 15, 2007, 12:33:42 PMOf course Rohan tends to over guns thing, and is using all centerline/superimposed turret technology, so you might be able to make lighter armed and faster that is armored like a battleship within the 48,000 shp and 4 shaft limit of 1909 engines.
Of course.  ;D

The Rock Doctor

Why would Rohan feel compelled to match UNK?  The only coast you share is not especially navigable.  It'd make more sense to me to build a tripwire force for the Caribbean and concentrate on your Pacific forces - which will soon be able to use the New Beleriand Canal to get around, after all.

The Russian Navy is currently impressive, size-wise:  but can that size be sustained as time goes on? 

Earl822

I think it is more the other way round, not sure why though

Ithekro

Basically I was picking the closest larger powers to balance on (since France is too large to match, and most of the other local powers are rather small in numbers).

As with most plans of this nature, it will likely stay a plan (the United States had a plan around this time to match both Japan and German, plus reserves, so something like 48 battleships...first class battleships I believe).  Rohan will probably at best be able to match Russia's present 22 battleships, but that would be with both first rate and second rate reserve battleships, so more likely 12 battleships and 6 battlecruisers with 5 more older battleships in reserve at best.  The proposed build up to 18 battleships and 6 battlecruiser with 5 reserve battleships is most likely a pipe dream.

The Rock Doctor

Fair enough.  I'll be curious to see if you can actually generate those numbers.  Personally, I'm going to be happy if I can sustain eight capital ships.

Ithekro

Just to complete the list of 1907 warships:

Helm Hammerhand
Fengel

Rohan Battleship laid down 1907 (Engine 1909)

Displacement:
   21,522 t light; 22,623 t standard; 23,750 t normal; 24,556 t full load

Dimensions: Length overall / water x beam x draught
   515.00 ft / 510.00 ft x 97.00 ft x 25.00 ft (normal load)
   156.97 m / 155.45 m x 29.57 m  x 7.62 m

Armament:
      8 - 14.00" / 356 mm guns (4x2 guns), 1,372.00lbs / 622.33kg shells, 1902 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      12 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1891 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
      8 - 1.50" / 38.1 mm guns in single mounts, 1.69lbs / 0.77kg shells, 1897 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 0.75" / 19.1 mm guns in single mounts, 0.21lbs / 0.10kg shells, 1902 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 12,287 lbs / 5,573 kg
   Shells per gun, main battery: 90

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14.0" / 356 mm   335.00 ft / 102.11 m   11.00 ft / 3.35 m
   Ends:   5.00" / 127 mm   175.00 ft / 53.34 m   11.00 ft / 3.35 m
   Upper:   7.00" / 178 mm   335.00 ft / 102.11 m   11.00 ft / 3.35 m
     Main Belt covers 101 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14.0" / 356 mm   7.00" / 178 mm      14.0" / 356 mm
   2nd:   5.00" / 127 mm         -               -

   - Armour deck: 3.00" / 76 mm, Conning tower: 14.00" / 356 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 28,500 shp / 21,261 Kw = 20.14 kts
   Range 5,750nm at 10.00 kts (Bunkerage = 2,028 tons)

Complement:
   956 - 1,243

Cost:
   £2.235 million / $8.941 million

Distribution of weights at normal displacement:
   Armament: 1,536 tons, 6.5 %
   Armour: 9,189 tons, 38.7 %
      - Belts: 3,831 tons, 16.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 2,985 tons, 12.6 %
      - Armour Deck: 2,123 tons, 8.9 %
      - Conning Tower: 250 tons, 1.1 %
   Machinery: 1,370 tons, 5.8 %
   Hull, fittings & equipment: 9,377 tons, 39.5 %
   Fuel, ammunition & stores: 2,228 tons, 9.4 %
   Miscellaneous weights: 50 tons, 0.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     34,551 lbs / 15,672 Kg = 25.2 x 14.0 " / 356 mm shells or 4.0 torpedoes
   Stability (Unstable if below 1.00): 1.05
   Metacentric height 5.2 ft / 1.6 m
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.72
   Seaboat quality  (Average = 1.00): 1.40

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.672
   Length to Beam Ratio: 5.26 : 1
   'Natural speed' for length: 22.58 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 10.89 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26.00 ft / 7.92 m
      - Forecastle (20 %):   20.00 ft / 6.10 m
      - Mid (50 %):      20.00 ft / 6.10 m
      - Quarterdeck (15 %):   20.00 ft / 6.10 m
      - Stern:      20.00 ft / 6.10 m
      - Average freeboard:   20.48 ft / 6.24 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 67.6 %
      - Above water (accommodation/working, high = better): 152.4 %
   Waterplane Area: 38,255 Square feet or 3,554 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 184 lbs/sq ft or 899 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.97
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily