Colonial Navy

Started by Delta Force, May 31, 2012, 11:27:30 PM

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Delta Force

#120
July 01, 2012, 04:38:48 PM
Are we allowed to have propulsion "longer" than the hull as long as the rest of the design has no issues? I am designing a light cruiser that has machinery so "long" that even full length hull armor does not protect it all. Is having such "long" machinery supposed to represent that some of it is outside the belt?

Jefgte

#121
July 01, 2012, 05:19:34 PM Last Edit: July 01, 2012, 05:37:30 PM by Jefgte
Look at quickly your Fleet, I note the belt thickness of your BBs...
IMO, with 280mm guns, 280mm max belt, that's coherent but
with 240mm guns, 230 to 240 belt are enough.
BBs with 240mm guns are secondary class BB - Armor thickness must be secondary class too.
---
I note too that speed cost very much in displacement in the earlier years (1895-1900)
Are you sure that 20kts ACs with 240mm guns are really different with 18 kts BBs with 240mm guns ?
---
IMO, You could have 1 class of ships with 240mm guns
Light BB - 4x240 - 18kts-B230
AC - 4x240  - 20kts - B200
mixed : 4x240 - 18kts - B200

Jef  ;)
"You French are fighting for money, while we English are fighting for honor!"
"Everyone is fighting for what they miss. "
Surcouf

KWorld

#122
July 01, 2012, 06:27:18 PM
Quote from: Delta Force on July 01, 2012, 04:38:48 PM
Are we allowed to have propulsion "longer" than the hull as long as the rest of the design has no issues? I am designing a light cruiser that has machinery so "long" that even full length hull armor does not protect it all. Is having such "long" machinery supposed to represent that some of it is outside the belt?

It's not so much that it's outside the belt as it's above the waterline.  SS tries to keep the magazine and engine spaces below the waterline, but sometimes there simply isn't room for that (see the USN's original design for the Lexingont-class BCs for an example).  It's fine, happens with lots of fast ships.

Delta Force

#123
July 01, 2012, 09:37:55 PM
I have decided to take Jefgte's advice and better differentiate the battleships and armored cruisers of the fleet. All battleships now carry 11 inch guns, and the armored cruisers will have a higher top speed of at least 21 knots, allowing them to at least keep up with the battleline once turbine powered ships are brought into service. I will be posting up the armored cruisers shortly.

1895 Coastal Battleship 11 Inch, Colonial Navy BB laid down 1895

Displacement:
   5,746 t light; 6,062 t standard; 6,500 t normal; 6,851 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (328.08 ft / 328.08 ft) x 56.59 ft x (20.57 / 21.47 ft)
   (100.00 m / 100.00 m) x 17.25 m  x (6.27 / 6.54 m)

Armament:
      4 - 11.02" / 280 mm 40.0 cal guns - 551.16lbs / 250.00kg shells, 80 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     2 x Twin mounts on centreline ends, evenly spread
      6 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1895 Model
     6 x Single mounts on sides, evenly spread
      14 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in deck mounts, 1895 Model
     14 x Single mounts on centreline, evenly spread
      14 raised mounts
      4 - 1.46" / 37.0 mm 40.0 cal guns - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on centreline ends, evenly spread
      Weight of broadside 3,047 lbs / 1,382 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.45" / 240 mm   212.27 ft / 64.70 m   12.30 ft / 3.75 m
   Ends:   4.92" / 125 mm   115.81 ft / 35.30 m   12.30 ft / 3.75 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   5.91" / 150 mm      9.45" / 240 mm
   2nd:   2.95" / 75 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.79" / 20 mm         -               -

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

   - Conning towers: Forward 9.45" / 240 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 5,731 ihp / 4,275 Kw = 15.99 kts
   Range 2,400nm at 12.00 kts
   Bunker at max displacement = 788 tons (100% coal)

Complement:
   361 - 470

Cost:
   £0.589 million / $2.354 million

Distribution of weights at normal displacement:
   Armament: 537 tons, 8.3 %
      - Guns: 537 tons, 8.3 %
   Armour: 2,374 tons, 36.5 %
      - Belts: 1,353 tons, 20.8 %
      - Armament: 454 tons, 7.0 %
      - Armour Deck: 497 tons, 7.6 %
      - Conning Tower: 71 tons, 1.1 %
   Machinery: 971 tons, 14.9 %
   Hull, fittings & equipment: 1,863 tons, 28.7 %
   Fuel, ammunition & stores: 754 tons, 11.6 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,653 lbs / 3,018 Kg = 9.9 x 11.0 " / 280 mm shells or 1.5 torpedoes
   Stability (Unstable if below 1.00): 1.19
   Metacentric height 2.9 ft / 0.9 m
   Roll period: 13.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0.52
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.596 / 0.601
   Length to Beam Ratio: 5.80 : 1
   'Natural speed' for length: 18.11 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Forward deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   35.00 %,  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:      9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84.2 %
      - Above water (accommodation/working, high = better): 70.2 %
   Waterplane Area: 13,527 Square feet or 1,257 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 111 lbs/sq ft or 540 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.74
      - Overall: 1.00
   Adequate 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

1895 Battleship 11 Inch, Colonial Navy BB laid down 1895

Displacement:
   9,063 t light; 9,514 t standard; 10,630 t normal; 11,522 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (410.11 ft / 410.11 ft) x 66.93 ft x (25.92 / 27.59 ft)
   (125.00 m / 125.00 m) x 20.40 m  x (7.90 / 8.41 m)

Armament:
      4 - 11.02" / 280 mm 40.0 cal guns - 551.16lbs / 250.00kg shells, 80 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     2 x Twin mounts on centreline ends, evenly spread
      6 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in deck and hoist mounts, 1895 Model
     6 x Single mounts on sides, evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1895 Model
     8 x Single mounts on centreline ends, evenly spread
      12 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1895 Model
     12 x Single mounts on centreline, evenly spread
      12 raised mounts
      4 - 1.46" / 37.0 mm 40.0 cal guns - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading guns in deck mounts, 1895 Model
     4 x Single mounts on centreline ends, evenly spread
      4 raised mounts
      Weight of broadside 3,708 lbs / 1,682 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11.0" / 280 mm   265.26 ft / 80.85 m   12.30 ft / 3.75 m
   Ends:   4.92" / 125 mm   144.85 ft / 44.15 m   12.30 ft / 3.75 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   5.91" / 150 mm      9.45" / 240 mm
   2nd:   5.91" / 150 mm   2.95" / 75 mm      2.95" / 75 mm
   3rd:   5.91" / 150 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

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

   - Conning towers: Forward 9.45" / 240 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 11,099 ihp / 8,280 Kw = 18.00 kts
   Range 4,800nm at 12.00 kts
   Bunker at max displacement = 2,007 tons (100% coal)

Complement:
   523 - 680

Cost:
   £0.888 million / $3.553 million

Distribution of weights at normal displacement:
   Armament: 697 tons, 6.6 %
      - Guns: 697 tons, 6.6 %
   Armour: 3,395 tons, 31.9 %
      - Belts: 1,891 tons, 17.8 %
      - Armament: 720 tons, 6.8 %
      - Armour Deck: 686 tons, 6.5 %
      - Conning Tower: 98 tons, 0.9 %
   Machinery: 1,881 tons, 17.7 %
   Hull, fittings & equipment: 3,089 tons, 29.1 %
   Fuel, ammunition & stores: 1,567 tons, 14.7 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     12,134 lbs / 5,504 Kg = 18.1 x 11.0 " / 280 mm shells or 1.9 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 4.4 ft / 1.3 m
   Roll period: 13.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0.42
   Seaboat quality  (Average = 1.00): 1.50

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.523 / 0.532
   Length to Beam Ratio: 6.13 : 1
   'Natural speed' for length: 20.25 kts
   Power going to wave formation at top speed: 43 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 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 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Forward deck:   40.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
      - Aft deck:   25.00 %,  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:      13.78 ft / 4.20 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84.5 %
      - Above water (accommodation/working, high = better): 94.4 %
   Waterplane Area: 18,678 Square feet or 1,735 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 123 lbs/sq ft or 599 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 1.97
      - 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

Delta Force

#124
July 01, 2012, 09:48:39 PM
The revised heavy cruiser designs:

1897 Heavy Cruiser 21 Knot, Colonial Navy CA laid down 1897

Displacement:
   8,936 t light; 9,331 t standard; 10,530 t normal; 11,490 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (416.67 ft / 416.67 ft) x 66.93 ft x (25.59 / 27.37 ft)
   (127.00 m / 127.00 m) x 20.40 m  x (7.80 / 8.34 m)

Armament:
      4 - 9.45" / 240 mm 40.0 cal guns - 363.76lbs / 165.00kg shells, 80 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Twin mounts on centreline ends, evenly spread
      12 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1897 Model
     12 x Single mounts on sides, evenly spread
      4 hull mounts in casemates- Limited use in all but light seas
      4 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in casemate mounts, 1897 Model
     4 x Single mounts on centreline ends, evenly spread
      2 hull mounts in casemates- Limited use in all but light seas
      6 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in deck mounts, 1897 Model
     6 x Single mounts on centreline, evenly spread
      6 raised mounts
      4 - 1.46" / 37.0 mm 40.0 cal guns - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading guns in deck mounts, 1897 Model
     4 x Single mounts on centreline ends, evenly spread
      4 raised mounts
      Weight of broadside 2,738 lbs / 1,242 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   318.64 ft / 97.12 m   12.30 ft / 3.75 m
   Ends:   3.94" / 100 mm     98.03 ft / 29.88 m   12.30 ft / 3.75 m
     Main Belt covers 118 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.87" / 200 mm   3.94" / 100 mm      6.89" / 175 mm
   2nd:   3.94" / 100 mm         -               -
   3rd:   3.94" / 100 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 1.57" / 40 mm
   Forecastle: 1.57" / 40 mm  Quarter deck: 1.57" / 40 mm

   - Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 19,817 ihp / 14,783 Kw = 21.00 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 2,158 tons (100% coal)

Complement:
   519 - 675

Cost:
   £0.961 million / $3.846 million

Distribution of weights at normal displacement:
   Armament: 509 tons, 4.8 %
      - Guns: 509 tons, 4.8 %
   Armour: 2,500 tons, 23.7 %
      - Belts: 1,463 tons, 13.9 %
      - Armament: 402 tons, 3.8 %
      - Armour Deck: 554 tons, 5.3 %
      - Conning Tower: 82 tons, 0.8 %
   Machinery: 3,249 tons, 30.9 %
   Hull, fittings & equipment: 2,678 tons, 25.4 %
   Fuel, ammunition & stores: 1,594 tons, 15.1 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,757 lbs / 3,518 Kg = 18.4 x 9.4 " / 240 mm shells or 1.3 torpedoes
   Stability (Unstable if below 1.00): 1.48
   Metacentric height 5.4 ft / 1.6 m
   Roll period: 12.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 76 %
         - Recoil effect (Restricted arc if above 1.00): 0.23
   Seaboat quality  (Average = 1.00): 1.26

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.516 / 0.527
   Length to Beam Ratio: 6.23 : 1
   'Natural speed' for length: 20.41 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): -15.00 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 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Forward deck:   50.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Aft deck:   15.00 %,  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:      13.12 ft / 4.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 117.4 %
      - Above water (accommodation/working, high = better): 90.9 %
   Waterplane Area: 18,863 Square feet or 1,752 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 106 lbs/sq ft or 519 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.76
      - 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

1901 Heavy Cruiser 21 Knot, Colonial Navy CA laid down 1901

Displacement:
   8,214 t light; 8,583 t standard; 9,650 t normal; 10,503 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (415.35 ft / 415.35 ft) x 64.30 ft x (25.59 / 27.28 ft)
   (126.60 m / 126.60 m) x 19.60 m  x (7.80 / 8.31 m)

Armament:
      4 - 9.45" / 240 mm 40.0 cal guns - 363.76lbs / 165.00kg shells, 80 per gun
     Breech loading guns in turret on barbette mounts, 1901 Model
     2 x Twin mounts on centreline ends, evenly spread
      10 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1901 Model
     10 x Single mounts on sides, evenly spread
      10 hull mounts in casemates- Limited use in all but light seas
      8 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in deck mounts, 1901 Model
     8 x Single mounts on centreline ends, evenly spread
      8 raised mounts
      4 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in deck mounts, 1901 Model
     4 x Single mounts on centreline, evenly spread
      4 raised mounts
      4 - 1.46" / 37.0 mm 40.0 cal guns - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading guns in deck mounts, 1901 Model
     4 x Single mounts on centreline ends, evenly spread
      4 raised mounts
      Weight of broadside 2,606 lbs / 1,182 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7.87" / 200 mm   316.31 ft / 96.41 m   12.30 ft / 3.75 m
   Ends:   3.94" / 100 mm     99.02 ft / 30.18 m   12.30 ft / 3.75 m
     Main Belt covers 117 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7.87" / 200 mm   3.94" / 100 mm      6.89" / 175 mm
   2nd:   3.94" / 100 mm         -               -
   3rd:   0.79" / 20 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 1.57" / 40 mm
   Forecastle: 1.57" / 40 mm  Quarter deck: 1.57" / 40 mm

   - Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 18,577 ihp / 13,859 Kw = 21.00 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,919 tons (100% coal)

Complement:
   486 - 632

Cost:
   £0.875 million / $3.500 million

Distribution of weights at normal displacement:
   Armament: 489 tons, 5.1 %
      - Guns: 489 tons, 5.1 %
   Armour: 2,424 tons, 25.1 %
      - Belts: 1,453 tons, 15.1 %
      - Armament: 374 tons, 3.9 %
      - Armour Deck: 520 tons, 5.4 %
      - Conning Tower: 77 tons, 0.8 %
   Machinery: 2,858 tons, 29.6 %
   Hull, fittings & equipment: 2,443 tons, 25.3 %
   Fuel, ammunition & stores: 1,435 tons, 14.9 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,457 lbs / 3,383 Kg = 17.7 x 9.4 " / 240 mm shells or 1.2 torpedoes
   Stability (Unstable if below 1.00): 1.44
   Metacentric height 4.9 ft / 1.5 m
   Roll period: 12.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 76 %
         - Recoil effect (Restricted arc if above 1.00): 0.25
   Seaboat quality  (Average = 1.00): 1.31

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.494 / 0.505
   Length to Beam Ratio: 6.46 : 1
   'Natural speed' for length: 20.38 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): -15.00 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 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Forward deck:   50.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Aft deck:   15.00 %,  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:      13.12 ft / 4.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 114.3 %
      - Above water (accommodation/working, high = better): 91.0 %
   Waterplane Area: 17,701 Square feet or 1,644 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 101 lbs/sq ft or 495 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.82
      - 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

KWorld

#125
July 02, 2012, 11:42:26 AM
On the 1895 BB, I think you'll probably need to move the casemate 150mm guns to the hull, to get decent arcs of fire when you have the deck & hoist mounted 150mms as well.

Delta Force

#126
July 02, 2012, 03:12:52 PM
Here are the frigate designs for my navy (I've decided to use sailing ship designations for my light cruisers to help distinguish between them). The ships can actually mount a single 9.45 inch gun instead of the two 7.5 inch guns, which would certainly add a nice bit of fire support to them. The only issue is that if I do so it will no longer be a light cruiser, which means no turbines. That is something of an issue since these ships are intended to bring heavy firepower to scouting and torpedo attack flotillas.

Each frigate design is divided into two variants, a protected cruiser variant and an unprotected cruiser variant. They are both identical in dimensions, the only difference is that the unprotected variant trades armor for speed.

1897 Frigate, Colonial Navy FF laid down 1897

Displacement:
   4,911 t light; 5,141 t standard; 6,000 t normal; 6,688 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (405.51 ft / 405.51 ft) x 52.00 ft x (21.00 / 22.75 ft)
   (123.60 m / 123.60 m) x 15.85 m  x (6.40 / 6.93 m)

Armament:
      2 - 7.48" / 190 mm 40.0 cal guns - 198.42lbs / 90.00kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Single mounts on centreline, forward evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      8 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in deck mounts, 1897 Model
     8 x Single mounts on centreline, evenly spread
      6 raised mounts
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading gun in deck mount, 1897 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 1,280 lbs / 580 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   405.51 ft / 123.60 m   5.00 ft / 1.53 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   2.95" / 75 mm      4.92" / 125 mm
   2nd:   2.95" / 75 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

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

   - Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 13,908 ihp / 10,375 Kw = 21.10 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,546 tons (100% coal)

Complement:
   340 - 443

Cost:
   £0.565 million / $2.261 million

Distribution of weights at normal displacement:
   Armament: 230 tons, 3.8 %
      - Guns: 230 tons, 3.8 %
   Armour: 854 tons, 14.2 %
      - Belts: 148 tons, 2.5 %
      - Armament: 160 tons, 2.7 %
      - Armour Deck: 504 tons, 8.4 %
      - Conning Tower: 42 tons, 0.7 %
   Machinery: 2,280 tons, 38.0 %
   Hull, fittings & equipment: 1,548 tons, 25.8 %
   Fuel, ammunition & stores: 1,089 tons, 18.2 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,312 lbs / 1,502 Kg = 15.8 x 7.5 " / 190 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.53
   Metacentric height 3.9 ft / 1.2 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.474 / 0.488
   Length to Beam Ratio: 7.80 : 1
   'Natural speed' for length: 20.14 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Forward deck:   50.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   15.00 %,  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:      9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 135.4 %
      - Above water (accommodation/working, high = better): 75.7 %
   Waterplane Area: 13,731 Square feet or 1,276 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 82 lbs/sq ft or 400 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.25
      - Overall: 1.00
   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

1897 Frigate Unprotected, Colonial Navy FF laid down 1897

Displacement:
   4,911 t light; 5,141 t standard; 6,000 t normal; 6,688 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (405.51 ft / 405.51 ft) x 52.00 ft x (21.00 / 22.75 ft)
   (123.60 m / 123.60 m) x 15.85 m  x (6.40 / 6.93 m)

Armament:
      2 - 7.48" / 190 mm 40.0 cal guns - 198.42lbs / 90.00kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Single mounts on centreline, forward evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      8 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in deck mounts, 1897 Model
     8 x Single mounts on centreline, evenly spread
      6 raised mounts
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading gun in deck mount, 1897 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 1,280 lbs / 580 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   2.95" / 75 mm      4.92" / 125 mm
   2nd:   2.95" / 75 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 16,431 ihp / 12,257 Kw = 22.03 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,546 tons (100% coal)

Complement:
   340 - 443

Cost:
   £0.623 million / $2.493 million

Distribution of weights at normal displacement:
   Armament: 230 tons, 3.8 %
      - Guns: 230 tons, 3.8 %
   Armour: 433 tons, 7.2 %
      - Armament: 160 tons, 2.7 %
      - Armour Deck: 252 tons, 4.2 %
      - Conning Tower: 21 tons, 0.4 %
   Machinery: 2,694 tons, 44.9 %
   Hull, fittings & equipment: 1,555 tons, 25.9 %
   Fuel, ammunition & stores: 1,089 tons, 18.2 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,570 lbs / 1,166 Kg = 12.3 x 7.5 " / 190 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.67
   Metacentric height 4.4 ft / 1.3 m
   Roll period: 10.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.17
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.474 / 0.488
   Length to Beam Ratio: 7.80 : 1
   'Natural speed' for length: 20.14 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Forward deck:   50.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   15.00 %,  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:      9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 157.4 %
      - Above water (accommodation/working, high = better): 75.7 %
   Waterplane Area: 13,731 Square feet or 1,276 Square metres
   Displacement factor (Displacement / loading): 92 %
   Structure weight / hull surface area: 82 lbs/sq ft or 402 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.25
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

1901 Frigate, Colonial Navy FF laid down 1901

Displacement:
   4,958 t light; 5,188 t standard; 6,000 t normal; 6,650 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (429.79 ft / 429.79 ft) x 48.56 ft x (21.00 / 22.66 ft)
   (131.00 m / 131.00 m) x 14.80 m  x (6.40 / 6.91 m)

Armament:
      2 - 7.48" / 190 mm 40.0 cal guns - 198.42lbs / 90.00kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1901 Model
     2 x Single mounts on centreline, forward evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1901 Model
     8 x Single mounts on sides, evenly spread
      8 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in deck mounts, 1901 Model
     8 x Single mounts on centreline, evenly spread
      6 raised mounts
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading gun in deck mount, 1901 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 1,280 lbs / 580 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.91" / 150 mm   429.79 ft / 131.00 m   5.00 ft / 1.53 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   2.95" / 75 mm      4.92" / 125 mm
   2nd:   2.95" / 75 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

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

   - Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 13,342 ihp / 9,953 Kw = 21.00 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,462 tons (100% coal)

Complement:
   340 - 443

Cost:
   £0.535 million / $2.140 million

Distribution of weights at normal displacement:
   Armament: 230 tons, 3.8 %
      - Guns: 230 tons, 3.8 %
   Armour: 1,173 tons, 19.5 %
      - Belts: 470 tons, 7.8 %
      - Armament: 160 tons, 2.7 %
      - Armour Deck: 501 tons, 8.4 %
      - Conning Tower: 42 tons, 0.7 %
   Machinery: 2,053 tons, 34.2 %
   Hull, fittings & equipment: 1,503 tons, 25.0 %
   Fuel, ammunition & stores: 1,042 tons, 17.4 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,925 lbs / 1,780 Kg = 18.8 x 7.5 " / 190 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.48
   Metacentric height 3.3 ft / 1.0 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.22
   Seaboat quality  (Average = 1.00): 1.19

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.479 / 0.492
   Length to Beam Ratio: 8.85 : 1
   'Natural speed' for length: 20.73 kts
   Power going to wave formation at top speed: 43 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Forward deck:   50.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   15.00 %,  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:      9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 123.3 %
      - Above water (accommodation/working, high = better): 75.3 %
   Waterplane Area: 13,648 Square feet or 1,268 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 78 lbs/sq ft or 379 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.13
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

1901 Frigate Unprotected, Colonial Navy FF laid down 1901

Displacement:
   4,958 t light; 5,188 t standard; 6,000 t normal; 6,650 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (429.79 ft / 429.79 ft) x 48.56 ft x (21.00 / 22.66 ft)
   (131.00 m / 131.00 m) x 14.80 m  x (6.40 / 6.91 m)

Armament:
      2 - 7.48" / 190 mm 40.0 cal guns - 198.42lbs / 90.00kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1901 Model
     2 x Single mounts on centreline, forward evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1901 Model
     8 x Single mounts on sides, evenly spread
      8 - 3.54" / 90.0 mm 40.0 cal guns - 22.05lbs / 10.00kg shells, 250 per gun
     Breech loading guns in deck mounts, 1901 Model
     8 x Single mounts on centreline, evenly spread
      6 raised mounts
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading gun in deck mount, 1901 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 1,280 lbs / 580 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   2.95" / 75 mm      4.92" / 125 mm
   2nd:   2.95" / 75 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 18,101 ihp / 13,504 Kw = 22.75 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,462 tons (100% coal)

Complement:
   340 - 443

Cost:
   £0.638 million / $2.550 million

Distribution of weights at normal displacement:
   Armament: 230 tons, 3.8 %
      - Guns: 230 tons, 3.8 %
   Armour: 431 tons, 7.2 %
      - Armament: 160 tons, 2.7 %
      - Armour Deck: 251 tons, 4.2 %
      - Conning Tower: 21 tons, 0.4 %
   Machinery: 2,785 tons, 46.4 %
   Hull, fittings & equipment: 1,512 tons, 25.2 %
   Fuel, ammunition & stores: 1,042 tons, 17.4 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,433 lbs / 1,104 Kg = 11.6 x 7.5 " / 190 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.71
   Metacentric height 4.1 ft / 1.2 m
   Roll period: 10.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 56 %
         - Recoil effect (Restricted arc if above 1.00): 0.18
   Seaboat quality  (Average = 1.00): 1.11

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.479 / 0.492
   Length to Beam Ratio: 8.85 : 1
   'Natural speed' for length: 20.73 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Forward deck:   50.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   15.00 %,  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:      9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 162.2 %
      - Above water (accommodation/working, high = better): 75.3 %
   Waterplane Area: 13,648 Square feet or 1,268 Square metres
   Displacement factor (Displacement / loading): 89 %
   Structure weight / hull surface area: 78 lbs/sq ft or 381 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.11
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

1905 Frigate, Colonial Navy FF laid down 1905

Displacement:
   4,859 t light; 5,096 t standard; 6,000 t normal; 6,723 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (429.79 ft / 429.79 ft) x 48.56 ft x (21.00 / 22.85 ft)
   (131.00 m / 131.00 m) x 14.80 m  x (6.40 / 6.97 m)

Armament:
      2 - 7.48" / 190 mm 40.0 cal guns - 200.58lbs / 90.98kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1905 Model
     2 x Single mounts on centreline, forward evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 98.69lbs / 44.77kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1905 Model
     8 x Single mounts on sides, evenly spread
      8 - 3.54" / 90.0 mm 40.0 cal guns - 21.32lbs / 9.67kg shells, 250 per gun
     Breech loading guns in deck mounts, 1905 Model
     8 x Single mounts on centreline, evenly spread
      6 raised mounts
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.48lbs / 0.67kg shells, 500 per gun
     Breech loading gun in deck mount, 1905 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 1,363 lbs / 618 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5.91" / 150 mm   429.79 ft / 131.00 m   5.00 ft / 1.53 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   2.95" / 75 mm      4.92" / 125 mm
   2nd:   2.95" / 75 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

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

   - Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 22,287 shp / 16,626 Kw = 24.00 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,627 tons (90% coal)

Complement:
   340 - 443

Cost:
   £0.502 million / $2.007 million

Distribution of weights at normal displacement:
   Armament: 230 tons, 3.8 %
      - Guns: 230 tons, 3.8 %
   Armour: 1,179 tons, 19.7 %
      - Belts: 470 tons, 7.8 %
      - Armament: 166 tons, 2.8 %
      - Armour Deck: 501 tons, 8.4 %
      - Conning Tower: 42 tons, 0.7 %
   Machinery: 1,839 tons, 30.6 %
   Hull, fittings & equipment: 1,611 tons, 26.9 %
   Fuel, ammunition & stores: 1,141 tons, 19.0 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,003 lbs / 2,269 Kg = 23.9 x 7.5 " / 190 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.44
   Metacentric height 3.2 ft / 1.0 m
   Roll period: 11.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 56 %
         - Recoil effect (Restricted arc if above 1.00): 0.27
   Seaboat quality  (Average = 1.00): 1.13

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.479 / 0.493
   Length to Beam Ratio: 8.85 : 1
   'Natural speed' for length: 20.73 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 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,  11.48 ft / 3.50 m
      - Forward deck:   50.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Aft deck:   15.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Quarter deck:   15.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
      - Average freeboard:      11.48 ft / 3.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 112.0 %
      - Above water (accommodation/working, high = better): 87.8 %
   Waterplane Area: 13,648 Square feet or 1,268 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 80 lbs/sq ft or 392 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.34
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

1905 Frigate Unprotected, Colonial Navy FF laid down 1905

Displacement:
   4,859 t light; 5,096 t standard; 6,000 t normal; 6,723 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (429.79 ft / 429.79 ft) x 48.56 ft x (21.00 / 22.85 ft)
   (131.00 m / 131.00 m) x 14.80 m  x (6.40 / 6.97 m)

Armament:
      2 - 7.48" / 190 mm 40.0 cal guns - 200.58lbs / 90.98kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1905 Model
     2 x Single mounts on centreline, forward evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 98.69lbs / 44.77kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1905 Model
     8 x Single mounts on sides, evenly spread
      8 - 3.54" / 90.0 mm 40.0 cal guns - 21.32lbs / 9.67kg shells, 250 per gun
     Breech loading guns in deck mounts, 1905 Model
     8 x Single mounts on centreline, evenly spread
      6 raised mounts
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.48lbs / 0.67kg shells, 500 per gun
     Breech loading gun in deck mount, 1905 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 1,363 lbs / 618 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   2.95" / 75 mm      4.92" / 125 mm
   2nd:   2.95" / 75 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 30,010 shp / 22,387 Kw = 25.87 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,627 tons (90% coal)

Complement:
   340 - 443

Cost:
   £0.591 million / $2.364 million

Distribution of weights at normal displacement:
   Armament: 230 tons, 3.8 %
      - Guns: 230 tons, 3.8 %
   Armour: 465 tons, 7.8 %
      - Armament: 173 tons, 2.9 %
      - Armour Deck: 251 tons, 4.2 %
      - Conning Tower: 42 tons, 0.7 %
   Machinery: 2,476 tons, 41.3 %
   Hull, fittings & equipment: 1,688 tons, 28.1 %
   Fuel, ammunition & stores: 1,141 tons, 19.0 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,225 lbs / 1,463 Kg = 15.4 x 7.5 " / 190 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.54
   Metacentric height 3.5 ft / 1.1 m
   Roll period: 10.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 54 %
         - Recoil effect (Restricted arc if above 1.00): 0.28
   Seaboat quality  (Average = 1.00): 1.09

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.479 / 0.493
   Length to Beam Ratio: 8.85 : 1
   'Natural speed' for length: 20.73 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 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 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Forward deck:   50.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
      - Aft deck:   15.00 %,  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:      13.12 ft / 4.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 145.9 %
      - Above water (accommodation/working, high = better): 100.3 %
   Waterplane Area: 13,648 Square feet or 1,268 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 82 lbs/sq ft or 398 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.51
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room

Delta Force

#127
July 02, 2012, 03:23:19 PM Last Edit: July 02, 2012, 08:06:49 PM by Delta Force
Here are the corvettes of my navy. These are the torpedo cruisers, although I suppose I could add torpedoes to my frigates as well. They are also intended as destroyer escorts (which would themselves be considered a torpedo cruiser by contemporary historical standards).

Edit notice: I edited the designs to increase the torpedoes to 450 mm instead of 400 mm and also reduced the armor on the deck guns to 20 mm from 50 mm.

1897 Corvettev2, Colonial Navy KK laid down 1897

Displacement:
   3,786 t light; 3,907 t standard; 4,645 t normal; 5,235 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (387.14 ft / 387.14 ft) x 46.36 ft x (19.03 / 20.79 ft)
   (118.00 m / 118.00 m) x 14.13 m  x (5.80 / 6.34 m)

Armament:
      2 - 4.13" / 105 mm 40.0 cal guns - 33.07lbs / 15.00kg shells, 150 per gun
     Breech loading guns in deck and hoist mounts, 1897 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 4.13" / 105 mm 40.0 cal guns - 33.07lbs / 15.00kg shells, 150 per gun
     Breech loading guns in deck mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading gun in deck mount, 1897 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 332 lbs / 151 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.94" / 100 mm   1.97" / 50 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 14,099 ihp / 10,518 Kw = 22.00 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,328 tons (100% coal)

Complement:
   280 - 365

Cost:
   £0.472 million / $1.886 million

Distribution of weights at normal displacement:
   Armament: 54 tons, 1.2 %
      - Guns: 54 tons, 1.2 %
   Armour: 277 tons, 6.0 %
      - Armament: 44 tons, 1.0 %
      - Armour Deck: 215 tons, 4.6 %
      - Conning Tower: 18 tons, 0.4 %
   Machinery: 2,297 tons, 49.5 %
   Hull, fittings & equipment: 1,155 tons, 24.9 %
   Fuel, ammunition & stores: 858 tons, 18.5 %
   Miscellaneous weights: 3 tons, 0.1 %
      - On freeboard deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,946 lbs / 883 Kg = 55.1 x 4.1 " / 105 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.86
   Metacentric height 4.3 ft / 1.3 m
   Roll period: 9.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 66 %
         - Recoil effect (Restricted arc if above 1.00): 0.05
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.476 / 0.491
   Length to Beam Ratio: 8.35 : 1
   'Natural speed' for length: 19.68 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.02 ft / 2.75 m,  9.02 ft / 2.75 m
      - Forward deck:   50.00 %,  9.02 ft / 2.75 m,  9.02 ft / 2.75 m
      - Aft deck:   15.00 %,  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:      9.02 ft / 2.75 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 163.7 %
      - Above water (accommodation/working, high = better): 71.8 %
   Waterplane Area: 11,704 Square feet or 1,087 Square metres
   Displacement factor (Displacement / loading): 92 %
   Structure weight / hull surface area: 67 lbs/sq ft or 327 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.08
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

Miscellaneous weight:
4 450 mm / 6.3 meter single shot deck mounted fixed torpedo tubes.

1901 Corvettev2, Colonial Navy KK laid down 1901

Displacement:
   3,995 t light; 4,120 t standard; 4,830 t normal; 5,397 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (403.54 ft / 403.54 ft) x 46.39 ft x (19.03 / 20.66 ft)
   (123.00 m / 123.00 m) x 14.14 m  x (5.80 / 6.30 m)

Armament:
      2 - 4.13" / 105 mm 40.0 cal guns - 33.85lbs / 15.35kg shells, 150 per gun
     Breech loading guns in deck and hoist mounts, 1901 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 4.13" / 105 mm 40.0 cal guns - 33.84lbs / 15.35kg shells, 150 per gun
     Breech loading guns in deck mounts, 1901 Model
     8 x Single mounts on sides, evenly spread
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.48lbs / 0.67kg shells, 500 per gun
     Breech loading gun in deck mount, 1901 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 340 lbs / 154 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.94" / 100 mm   1.97" / 50 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 16,155 ihp / 12,052 Kw = 22.75 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,277 tons (100% coal)

Complement:
   289 - 376

Cost:
   £0.504 million / $2.016 million

Distribution of weights at normal displacement:
   Armament: 54 tons, 1.1 %
      - Guns: 54 tons, 1.1 %
   Armour: 286 tons, 5.9 %
      - Armament: 44 tons, 0.9 %
      - Armour Deck: 224 tons, 4.6 %
      - Conning Tower: 18 tons, 0.4 %
   Machinery: 2,476 tons, 51.3 %
   Hull, fittings & equipment: 1,176 tons, 24.3 %
   Fuel, ammunition & stores: 835 tons, 17.3 %
   Miscellaneous weights: 3 tons, 0.1 %
      - On freeboard deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,886 lbs / 855 Kg = 53.4 x 4.1 " / 105 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.86
   Metacentric height 4.3 ft / 1.3 m
   Roll period: 9.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 64 %
         - Recoil effect (Restricted arc if above 1.00): 0.05
   Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.475 / 0.488
   Length to Beam Ratio: 8.70 : 1
   'Natural speed' for length: 20.09 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.02 ft / 2.75 m,  9.02 ft / 2.75 m
      - Forward deck:   50.00 %,  9.02 ft / 2.75 m,  9.02 ft / 2.75 m
      - Aft deck:   15.00 %,  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:      9.02 ft / 2.75 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 169.3 %
      - Above water (accommodation/working, high = better): 72.5 %
   Waterplane Area: 12,192 Square feet or 1,133 Square metres
   Displacement factor (Displacement / loading): 89 %
   Structure weight / hull surface area: 65 lbs/sq ft or 319 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.01
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

Miscellaneous weight:
4 450 mm / 6.3 meter single shot deck mounted fixed torpedo tubes.

1905 Corvettev2, Colonial Navy KK laid down 1905

Displacement:
   3,904 t light; 4,029 t standard; 4,820 t normal; 5,452 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (410.11 ft / 410.11 ft) x 46.59 ft x (19.03 / 20.82 ft)
   (125.00 m / 125.00 m) x 14.20 m  x (5.80 / 6.35 m)

Armament:
      2 - 4.13" / 105 mm 40.0 cal guns - 33.85lbs / 15.35kg shells, 150 per gun
     Breech loading guns in deck and hoist mounts, 1905 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 4.13" / 105 mm 40.0 cal guns - 33.84lbs / 15.35kg shells, 150 per gun
     Breech loading guns in deck mounts, 1905 Model
     8 x Single mounts on sides, evenly spread
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.48lbs / 0.67kg shells, 500 per gun
     Breech loading gun in deck mount, 1905 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 340 lbs / 154 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3.94" / 100 mm   1.97" / 50 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 27,065 shp / 20,190 Kw = 26.00 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,423 tons (90% coal)

Complement:
   288 - 375

Cost:
   £0.467 million / $1.866 million

Distribution of weights at normal displacement:
   Armament: 54 tons, 1.1 %
      - Guns: 54 tons, 1.1 %
   Armour: 289 tons, 6.0 %
      - Armament: 45 tons, 0.9 %
      - Armour Deck: 226 tons, 4.7 %
      - Conning Tower: 18 tons, 0.4 %
   Machinery: 2,231 tons, 46.3 %
   Hull, fittings & equipment: 1,327 tons, 27.5 %
   Fuel, ammunition & stores: 915 tons, 19.0 %
   Miscellaneous weights: 3 tons, 0.1 %
      - On freeboard deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,605 lbs / 1,182 Kg = 73.8 x 4.1 " / 105 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.81
   Metacentric height 4.2 ft / 1.3 m
   Roll period: 9.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 55 %
         - Recoil effect (Restricted arc if above 1.00): 0.06
   Seaboat quality  (Average = 1.00): 1.10

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.464 / 0.480
   Length to Beam Ratio: 8.80 : 1
   'Natural speed' for length: 20.25 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 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 %,  12.30 ft / 3.75 m,  12.30 ft / 3.75 m
      - Forward deck:   50.00 %,  12.30 ft / 3.75 m,  12.30 ft / 3.75 m
      - Aft deck:   15.00 %,  12.30 ft / 3.75 m,  12.30 ft / 3.75 m
      - Quarter deck:   15.00 %,  12.30 ft / 3.75 m,  12.30 ft / 3.75 m
      - Average freeboard:      12.30 ft / 3.75 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 153.5 %
      - Above water (accommodation/working, high = better): 100.3 %
   Waterplane Area: 12,331 Square feet or 1,146 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 68 lbs/sq ft or 334 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.37
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room

Miscellaneous weight:
4 450 mm / 6.3 meter single shot deck mounted fixed torpedo tubes.

Delta Force

#128
July 02, 2012, 08:20:28 PM
How dangerous are deck mounted torpedoes to the ships carrying them? I know that the propellent of Japanese oxygen torpedoes alone was enough to cause massive damage to the cruisers carrying them if damaged in combat, but they had an exotic propellent system. Are standard torpedoes safe enough to be carried by ships not specifically designed for torpedo attacks?

KWorld

#129
July 03, 2012, 03:57:14 AM Last Edit: July 03, 2012, 05:01:04 AM by KWorld
On the frigates: the belts fitted (for those ships with belts) are very short, resulting in little protected volume.   They're thick enough to be good protection against fairly good sized shells, but they're so short vertically that they won't get hit very often.  Also, I find the layout of the 90m guns (all on centerline at deck height) dubious: between the bow guns and superstructure, where's there going to be room for all of these?

Or are the belts supposed to be part of a protected cruiser arrangement?  If so,  they should be labeled as "upper belt", per the rules, and while the ships machinery will be well protected, the unprotected hull above the waterline will be very vulnerable to damage.

Delta Force

#130
July 03, 2012, 12:45:55 PM
Quote from: KWorld on July 03, 2012, 03:57:14 AM
On the frigates: the belts fitted (for those ships with belts) are very short, resulting in little protected volume.   They're thick enough to be good protection against fairly good sized shells, but they're so short vertically that they won't get hit very often.  Also, I find the layout of the 90m guns (all on centerline at deck height) dubious: between the bow guns and superstructure, where's there going to be room for all of these?

Or are the belts supposed to be part of a protected cruiser arrangement?  If so,  they should be labeled as "upper belt", per the rules, and while the ships machinery will be well protected, the unprotected hull above the waterline will be very vulnerable to damage.

These are supposed to be protected cruisers, I just put the armor in the wrong place. The reason for the armor arrangement is that carrying a conventional belt is tonnage heavy. I could put one on but the speed would be too slow for its role and more vulnerable to the larger ships it could previously outrun. Once oil firing is allowed there won't be coal to use as extra "armor" and the reduced fuel tonnage will allow me to have a proper armor belt.

With the 90 mm guns, there is indeed a mistake there. The two deck mounted guns were intended to be aft mounted when the frigate designs had the two 7.5 inch guns in a single fore turret. There is not really any room with single turrets fore and aft. As for the other 90 mm guns, they were supposed to be mounted in the upperworks (the 37 mm is supposed to be as well, but it might actually be able to fit), but I forgot that light cruisers do not have such extensive upperworks suitable for mounting guns (the frigates basically being large light cruisers). Since this ship is fast do you think it would be safe to eliminate the 90 mm guns because the frigates are closer in speed to them and able to outrun them in anything worse than perfect conditions (that and I have no room for them)?

KWorld

#131
July 03, 2012, 03:13:56 PM Last Edit: July 03, 2012, 05:47:26 PM by KWorld
Belt armor IS weight-expensive, but it has the useful effect of keeping the shells OUT of the hull, rather than letting them into the hull and trying to limit how much damage they can cause.  Historically, the 1880s-1890s seem ot have been the hey-day of the protected cruiser design, with designers switching back to armored belts sometime in the late-1890s to mid 1900s.  So historically the change was made before the switch (in general) to oil fuel, but that's no reason that you have to do so.

Historically, you're probably OK with dropping the 90mms.  My light cruiser designs have a mix of 150mm & 100mm guns, but they don't carry 8 150mms on the beams.

Delta Force

#132
July 03, 2012, 08:01:36 PM Last Edit: July 03, 2012, 08:03:39 PM by Delta Force
Quote from: KWorld on July 03, 2012, 03:13:56 PM
Belt armor IS weight-expensive, but it has the useful effect of keeping the shells OUT of the hull, rather than letting them into the hull and trying to limit how much damage they can cause.  Historically, the 1880s-1890s seem ot have been the hey-day of the protected cruiser design, with designers switching back to armored belts sometime in the late-1890s to mid 1900s.  So historically the change was made before the switch (in general) to oil fuel, but that's no reason that you have to do so.

Historically, you're probably OK with dropping the 90mms.  My light cruiser designs have a mix of 150mm & 100mm guns, but they don't carry 8 150mms on the beams.

Dropping the 90 mm guns has actually fixed that problem. The former protected frigates can now carry conventional belt armor, and the former unprotected frigates can now carry (some) protected cruiser style armor. I guess the big question is if a 25 mm thick protected cruiser arrangement is worth much at all in defense or if the weight would be better going towards speed.

Also, what do you think of my corvettes?

KWorld

#133
July 03, 2012, 08:26:58 PM
On the subject of a 25mm deck: keep in mind that at this time all it's really trying to protect against is shell fragments, there's no real way for naval guns to hit deck armor at this time period, the mounts don't elevate high enough for it to happen.  (OK, coast defence mortars can and will hit your deck armor, but no cruiser built will withstand a 12" AP mortar shell).

The corvettes....... well, they don't seem very well armed or protected for their size, and their speed isn't anything special.    I fear they'd be not too difficult a target for DDs (the 1905s are better, because of their speed).

Delta Force

#134
July 04, 2012, 02:44:59 AM
To avoid creating a wall of text here are the revised 1897 frigate and corvette designs as a general example of what the ships look like now:

1897 Frigatev2, Colonial Navy FF laid down 1897

Displacement:
   4,936 t light; 5,141 t standard; 6,000 t normal; 6,688 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (405.51 ft / 405.51 ft) x 52.00 ft x (21.00 / 22.75 ft)
   (123.60 m / 123.60 m) x 15.85 m  x (6.40 / 6.93 m)

Armament:
      2 - 7.48" / 190 mm 40.0 cal guns - 198.42lbs / 90.00kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Single mounts on centreline, forward evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading gun in deck mount, 1897 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 1,103 lbs / 500 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1.97" / 50 mm   405.51 ft / 123.60 m   12.30 ft / 3.75 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   2.95" / 75 mm      4.92" / 125 mm
   2nd:   2.95" / 75 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 1.57" / 40 mm
   Forecastle: 1.57" / 40 mm  Quarter deck: 1.57" / 40 mm

   - Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 13,657 ihp / 10,188 Kw = 21.00 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,546 tons (100% coal)

Complement:
   340 - 443

Cost:
   £0.553 million / $2.212 million

Distribution of weights at normal displacement:
   Armament: 205 tons, 3.4 %
      - Guns: 205 tons, 3.4 %
   Armour: 954 tons, 15.9 %
      - Belts: 363 tons, 6.1 %
      - Armament: 146 tons, 2.4 %
      - Armour Deck: 403 tons, 6.7 %
      - Conning Tower: 42 tons, 0.7 %
   Machinery: 2,239 tons, 37.3 %
   Hull, fittings & equipment: 1,537 tons, 25.6 %
   Fuel, ammunition & stores: 1,065 tons, 17.7 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,510 lbs / 1,592 Kg = 16.8 x 7.5 " / 190 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.53
   Metacentric height 3.9 ft / 1.2 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0.17
   Seaboat quality  (Average = 1.00): 1.23

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.474 / 0.488
   Length to Beam Ratio: 7.80 : 1
   'Natural speed' for length: 20.14 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 61
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Forward deck:   50.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   15.00 %,  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:      9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 131.7 %
      - Above water (accommodation/working, high = better): 75.7 %
   Waterplane Area: 13,731 Square feet or 1,276 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 81 lbs/sq ft or 394 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.24
      - Overall: 1.00
   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

1897 Frigate Protected, Colonial Navy FF laid down 1897

Displacement:
   4,936 t light; 5,141 t standard; 6,000 t normal; 6,688 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (405.51 ft / 405.51 ft) x 52.00 ft x (21.00 / 22.75 ft)
   (123.60 m / 123.60 m) x 15.85 m  x (6.40 / 6.93 m)

Armament:
      2 - 7.48" / 190 mm 40.0 cal guns - 198.42lbs / 90.00kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Single mounts on centreline, forward evenly spread
      8 - 5.91" / 150 mm 40.0 cal guns - 88.18lbs / 40.00kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading gun in deck mount, 1897 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 1,103 lbs / 500 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Upper:   0.98" / 25 mm   405.51 ft / 123.60 m   5.00 ft / 1.53 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5.91" / 150 mm   2.95" / 75 mm      4.92" / 125 mm
   2nd:   2.95" / 75 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 16,460 ihp / 12,279 Kw = 22.04 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,546 tons (100% coal)

Complement:
   340 - 443

Cost:
   £0.617 million / $2.469 million

Distribution of weights at normal displacement:
   Armament: 205 tons, 3.4 %
      - Guns: 205 tons, 3.4 %
   Armour: 492 tons, 8.2 %
      - Belts: 74 tons, 1.2 %
      - Armament: 146 tons, 2.4 %
      - Armour Deck: 252 tons, 4.2 %
      - Conning Tower: 21 tons, 0.4 %
   Machinery: 2,698 tons, 45.0 %
   Hull, fittings & equipment: 1,539 tons, 25.7 %
   Fuel, ammunition & stores: 1,065 tons, 17.7 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,600 lbs / 1,180 Kg = 12.4 x 7.5 " / 190 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.66
   Metacentric height 4.4 ft / 1.3 m
   Roll period: 10.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 69 %
         - Recoil effect (Restricted arc if above 1.00): 0.14
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.474 / 0.488
   Length to Beam Ratio: 7.80 : 1
   'Natural speed' for length: 20.14 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 61
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Forward deck:   50.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   15.00 %,  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:      9.84 ft / 3.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 156.2 %
      - Above water (accommodation/working, high = better): 75.7 %
   Waterplane Area: 13,731 Square feet or 1,276 Square metres
   Displacement factor (Displacement / loading): 92 %
   Structure weight / hull surface area: 81 lbs/sq ft or 394 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.23
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

Armor in protected cruiser configuration.

1897 Corvette Light Weight, Colonial Navy KK laid down 1897

Displacement:
   3,481 t light; 3,595 t standard; 4,310 t normal; 4,882 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (367.45 ft / 367.45 ft) x 36.75 ft x (21.00 / 23.16 ft)
   (112.00 m / 112.00 m) x 11.20 m  x (6.40 / 7.06 m)

Armament:
      2 - 4.13" / 105 mm 40.0 cal guns - 33.07lbs / 15.00kg shells, 150 per gun
     Breech loading guns in deck mounts, 1897 Model
     2 x Single mounts on centreline ends, evenly spread
      8 - 4.13" / 105 mm 40.0 cal guns - 33.07lbs / 15.00kg shells, 150 per gun
     Breech loading guns in deck mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      1 - 1.46" / 37.0 mm 40.0 cal gun - 1.10lbs / 0.50kg shells, 500 per gun
     Breech loading gun in deck mount, 1897 Model
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 332 lbs / 151 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.98" / 25 mm   367.45 ft / 112.00 m   5.00 ft / 1.53 m
     Main Belt covers 154 % of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm         -               -
   2nd:   0.79" / 20 mm         -               -
   5th:   0.79" / 20 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0.98" / 25 mm
   Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 13,823 ihp / 10,312 Kw = 22.00 kts
   Range 5,400nm at 12.00 kts
   Bunker at max displacement = 1,287 tons (100% coal)

Complement:
   265 - 345

Cost:
   £0.448 million / $1.791 million

Distribution of weights at normal displacement:
   Armament: 47 tons, 1.1 %
      - Guns: 47 tons, 1.1 %
   Armour: 274 tons, 6.4 %
      - Belts: 67 tons, 1.6 %
      - Armament: 21 tons, 0.5 %
      - Armour Deck: 170 tons, 3.9 %
      - Conning Tower: 17 tons, 0.4 %
   Machinery: 2,223 tons, 51.6 %
   Hull, fittings & equipment: 933 tons, 21.7 %
   Fuel, ammunition & stores: 829 tons, 19.2 %
   Miscellaneous weights: 3 tons, 0.1 %
      - On freeboard deck: 3 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,471 lbs / 667 Kg = 41.6 x 4.1 " / 105 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.63
   Metacentric height 2.5 ft / 0.8 m
   Roll period: 9.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 53 %
         - Recoil effect (Restricted arc if above 1.00): 0.08
   Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.532 / 0.546
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 19.17 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): -15.00 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 %,  9.02 ft / 2.75 m,  9.02 ft / 2.75 m
      - Forward deck:   50.00 %,  9.02 ft / 2.75 m,  9.02 ft / 2.75 m
      - Aft deck:   15.00 %,  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:      9.02 ft / 2.75 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 170.2 %
      - Above water (accommodation/working, high = better): 60.1 %
   Waterplane Area: 9,267 Square feet or 861 Square metres
   Displacement factor (Displacement / loading): 87 %
   Structure weight / hull surface area: 60 lbs/sq ft or 291 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.23
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

Miscellaneous weight:
4 450 mm / 6.3 meter single shot deck mounted fixed torpedo tubes.

Armor in protected cruiser configuration.
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