United Kingdom: 1900 restart (1890 ships)

[snip]

   - Armoured deck - multiple decks: 4.00" / 102 mm For and Aft decks
   Forecastle: 4.00" / 102 mm  Quarter deck: 6.00" / 152 mm

I think this should be a protected deck as opposed to armored given the lack of belts. Also, why is it thicker over the Quarterdeck then the rest of the ship?

[eltf177]

   - Armoured deck - multiple decks: 4.00" / 102 mm For and Aft decks
   Forecastle: 4.00" / 102 mm  Quarter deck: 6.00" / 152 mm

I think this should be a protected deck as opposed to armored given the lack of belts. Also, why is it thicker over the Quarterdeck then the rest of the ship?

Boy, this thing's bigger than most battleships! And more expensive as well, I wonder if Parliament will sign off on it...

[Darman]

   - Armoured deck - multiple decks: 4.00" / 102 mm For and Aft decks
   Forecastle: 4.00" / 102 mm  Quarter deck: 6.00" / 152 mm

I think this should be a protected deck as opposed to armored given the lack of belts. Also, why is it thicker over the Quarterdeck then the rest of the ship?

I thought I had changed it to a protected deck?  Maybe not, if not then it was supposed to be a protected deck.  It mentioned that the deck sloped down from a height of 3.5 feet above the waterline to about 6.5 feet below the waterline.  I wasn't sure how to sim that and figured "protected deck" covered it. 

Why its 6" thick over the quarter deck where the engines are? 
"The deck was 6in thick over the machinery, 4in thick over the magazines, and 2.5in thick in the middle of the ship"

Unless the magazines are all forward I figured that 4" was a good thickness for the whole deck. 

[snip]

Quarterdeck is the far aft of the ship, engines will be within the For and Aft decks.

[Darman]

Quarterdeck is the far aft of the ship, engines will be within the For and Aft decks.

darn.....  okay well then I will have to change that. 

[Darman]

HMS Powerful, United Kingdom Protected Cruiser laid down 1894
Barbette ship

Displacement:
   11,187 t light; 11,629 t standard; 15,055 t normal; 17,796 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (500.00 ft / 500.00 ft) x 71.00 ft x (27.00 / 30.87 ft)
   (152.40 m / 152.40 m) x 21.64 m  x (8.23 / 9.41 m)

Armament:
      2 - 9.20" / 234 mm 40.0 cal guns - 373.15lbs / 169.26kg shells, 60 per gun
     Breech loading guns in open barbette mounts, 1894 Model
     2 x Single mounts on centreline ends, evenly spread
      12 - 6.00" / 152 mm 40.0 cal guns - 100.00lbs / 45.36kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1894 Model
     12 x Single mounts on sides amidships
      8 hull mounts in casemates- Limited use in heavy seas
      12 - 3.00" / 76.2 mm 40.0 cal guns - 12.00lbs / 5.44kg shells, 200 per gun
     Quick firing guns in casemate mounts, 1894 Model
     12 x Single mounts on sides amidships
      Weight of broadside 2,090 lbs / 948 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         7.00" / 178 mm
   2nd:   3.00" / 76 mm         -               -
   3rd:   3.00" / 76 mm         -               -

   - Protected deck - single deck: 4.40" / 112 mm For and Aft decks
   Forecastle: 3.00" / 76 mm  Quarter deck: 3.00" / 76 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 27,820 ihp / 20,753 Kw = 22.00 kts
   Range 10,000nm at 13.00 kts
   Bunker at max displacement = 6,167 tons (100% coal)

Complement:
   679 - 883

Cost:
   £1.166 million / $4.662 million

Distribution of weights at normal displacement:
   Armament: 369 tons, 2.5 %
   Armour: 2,249 tons, 14.9 %
      - Armament: 337 tons, 2.2 %
      - Armour Deck: 1,912 tons, 12.7 %
   Machinery: 4,796 tons, 31.9 %
   Hull, fittings & equipment: 3,772 tons, 25.1 %
   Fuel, ammunition & stores: 3,868 tons, 25.7 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15,503 lbs / 7,032 Kg = 39.8 x 9.2 " / 234 mm shells or 1.6 torpedoes
   Stability (Unstable if below 1.00): 1.84
   Metacentric height 8.0 ft / 2.5 m
   Roll period: 10.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 95 %
         - Recoil effect (Restricted arc if above 1.00): 0.12
   Seaboat quality  (Average = 1.00): 1.90

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.568
   Length to Beam Ratio: 7.04 : 1
   'Natural speed' for length: 22.36 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  22.00 ft / 6.71 m,  18.00 ft / 5.49 m
      - Forward deck:   30.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Aft deck:   35.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Quarter deck:   15.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Average freeboard:      18.32 ft / 5.58 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 110.3 %
      - Above water (accommodation/working, high = better): 125.1 %
   Waterplane Area: 24,769 Square feet or 2,301 Square metres
   Displacement factor (Displacement / loading): 117 %
   Structure weight / hull surface area: 105 lbs/sq ft or 514 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.74
      - 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
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Darman]

Devastation, United Kingdom Coast Defense laid down 1895
Barbette ship

Displacement:
   11,622 t light; 12,104 t standard; 12,826 t normal; 13,404 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (360.00 ft / 360.00 ft) x 69.00 ft x (25.00 / 26.00 ft)
   (109.73 m / 109.73 m) x 21.03 m  x (7.62 / 7.92 m)

Armament:
      4 - 13.50" / 343 mm 30.0 cal guns - 1,133.89lbs / 514.32kg shells, 50 per gun
     Breech loading guns in open barbette mounts, 1895 Model
     4 x Single mounts on centreline ends, evenly spread
      10 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1895 Model
     10 x Single mounts on sides amidships
      4 hull mounts in casemates- Limited use in all but light seas
      16 - 2.24" / 57.0 mm 40.0 cal guns - 6.00lbs / 2.72kg shells, 250 per gun
     Quick firing guns in deck mounts, 1895 Model
     16 x Single mounts on sides amidships
      Weight of broadside 5,667 lbs / 2,570 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   17.0" / 432 mm   234.00 ft / 71.32 m   9.97 ft / 3.04 m
   Ends:   13.0" / 330 mm   125.98 ft / 38.40 m   9.97 ft / 3.04 m
   Upper:   4.00" / 102 mm   234.00 ft / 71.32 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         15.0" / 381 mm
   2nd:   3.00" / 76 mm         -               -
   3rd:   0.50" / 13 mm         -               -

   - Armoured deck - multiple decks: 5.00" / 127 mm For and Aft decks
   Forecastle: 3.00" / 76 mm  Quarter deck: 3.00" / 76 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 14,159 ihp / 10,563 Kw = 18.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 1,300 tons (100% coal)

Complement:
   602 - 783

Cost:
   £0.988 million / $3.951 million

Distribution of weights at normal displacement:
   Armament: 769 tons, 6.0 %
   Armour: 5,677 tons, 44.3 %
      - Belts: 2,766 tons, 21.6 %
      - Armament: 1,161 tons, 9.0 %
      - Armour Deck: 1,750 tons, 13.6 %
   Machinery: 2,400 tons, 18.7 %
   Hull, fittings & equipment: 2,776 tons, 21.6 %
   Fuel, ammunition & stores: 1,204 tons, 9.4 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15,978 lbs / 7,248 Kg = 13.0 x 13.5 " / 343 mm shells or 2.1 torpedoes
   Stability (Unstable if below 1.00): 1.52
   Metacentric height 5.8 ft / 1.8 m
   Roll period: 12.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 58 %
         - Recoil effect (Restricted arc if above 1.00): 0.29
   Seaboat quality  (Average = 1.00): 1.17

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.723 / 0.727
   Length to Beam Ratio: 5.22 : 1
   'Natural speed' for length: 18.97 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.87 ft / 6.36 m,  13.28 ft / 4.05 m
      - Forward deck:   30.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Aft deck:   35.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Quarter deck:   15.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Average freeboard:      13.89 ft / 4.23 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 79.2 %
      - Above water (accommodation/working, high = better): 85.4 %
   Waterplane Area: 20,318 Square feet or 1,888 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 115 lbs/sq ft or 560 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.99
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is cramped

[Darman]

Newest iteration of the Devastation-class long-ranged version (possibly the only version at this point)

Devastation, United Kingdom Coast Defense laid down 1895

Displacement:
   12,707 t light; 13,233 t standard; 15,165 t normal; 16,711 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (360.00 ft / 360.00 ft) x 69.00 ft x (25.00 / 27.35 ft)
   (109.73 m / 109.73 m) x 21.03 m  x (7.62 / 8.34 m)

Armament:
      4 - 13.50" / 343 mm 30.0 cal guns - 1,133.89lbs / 514.32kg shells, 50 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     4 x Single mounts on centreline ends, evenly spread
      10 - 6.00" / 152 mm 40.0 cal guns - 100.00lbs / 45.36kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1895 Model
     10 x Single mounts on sides amidships
      4 hull mounts in casemates- Limited use in all but light seas
      16 - 2.24" / 57.0 mm 40.0 cal guns - 6.00lbs / 2.72kg shells, 250 per gun
     Quick firing guns in deck mounts, 1895 Model
     16 x Single mounts on sides amidships
      Weight of broadside 5,632 lbs / 2,554 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14.0" / 356 mm   234.00 ft / 71.32 m   9.97 ft / 3.04 m
   Ends:   11.5" / 292 mm   125.98 ft / 38.40 m   9.97 ft / 3.04 m
   Upper:   9.00" / 229 mm   234.00 ft / 71.32 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14.0" / 356 mm   8.00" / 203 mm      12.0" / 305 mm
   2nd:   3.00" / 76 mm         -               -
   3rd:   0.50" / 13 mm         -               -

   - Armoured deck - multiple decks: 4.00" / 102 mm For and Aft decks
   Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 12.00" / 305 mm,  Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 16,459 ihp / 12,278 Kw = 18.00 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 3,478 tons (100% coal)

Complement:
   683 - 888

Cost:
   £1.165 million / $4.660 million

Distribution of weights at normal displacement:
   Armament: 790 tons, 5.2 %
   Armour: 5,749 tons, 37.9 %
      - Belts: 2,859 tons, 18.9 %
      - Armament: 1,188 tons, 7.8 %
      - Armour Deck: 1,543 tons, 10.2 %
      - Conning Tower: 158 tons, 1.0 %
   Machinery: 2,790 tons, 18.4 %
   Hull, fittings & equipment: 3,379 tons, 22.3 %
   Fuel, ammunition & stores: 2,458 tons, 16.2 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17,238 lbs / 7,819 Kg = 14.0 x 13.5 " / 343 mm shells or 2.1 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 4.8 ft / 1.5 m
   Roll period: 13.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.40
   Seaboat quality  (Average = 1.00): 0.99

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.855 / 0.861
   Length to Beam Ratio: 5.22 : 1
   'Natural speed' for length: 18.97 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.87 ft / 6.36 m,  13.28 ft / 4.05 m
      - Forward deck:   30.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Aft deck:   35.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Quarter deck:   15.00 %,  13.28 ft / 4.05 m,  13.28 ft / 4.05 m
      - Average freeboard:      13.89 ft / 4.23 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 80.0 %
      - Above water (accommodation/working, high = better): 85.2 %
   Waterplane Area: 22,995 Square feet or 2,136 Square metres
   Displacement factor (Displacement / loading): 105 %
   Structure weight / hull surface area: 122 lbs/sq ft or 594 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.88
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is cramped
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[Darman]

Devastation, United Kingdom Battleship laid down 1895

Displacement:
   12,871 t light; 13,414 t standard; 15,365 t normal; 16,926 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (360.00 ft / 360.00 ft) x 69.00 ft x (25.00 / 27.35 ft)
   (109.73 m / 109.73 m) x 21.03 m  x (7.62 / 8.34 m)

Armament:
      4 - 13.50" / 343 mm 30.0 cal guns - 1,250.00lbs / 566.99kg shells, 50 per gun
     Breech loading guns in turret on barbette mounts, 1895 Model
     4 x Single mounts on centreline ends, evenly spread
      10 - 6.00" / 152 mm 40.0 cal guns - 100.00lbs / 45.36kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1895 Model
     10 x Single mounts on sides, evenly spread
      4 hull mounts in casemates- Limited use in all but light seas
      16 - 2.24" / 57.0 mm 40.0 cal guns - 6.00lbs / 2.72kg shells, 250 per gun
     Quick firing guns in deck mounts, 1895 Model
     16 x Single mounts on sides, evenly spread
      Weight of broadside 6,096 lbs / 2,765 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14.0" / 356 mm   234.00 ft / 71.32 m   9.00 ft / 2.74 m
   Ends:   11.5" / 292 mm   125.98 ft / 38.40 m   9.00 ft / 2.74 m
   Upper:   9.00" / 229 mm   234.00 ft / 71.32 m   9.50 ft / 2.90 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14.0" / 356 mm   8.00" / 203 mm      12.0" / 305 mm
   2nd:   3.00" / 76 mm         -               -
   3rd:   0.50" / 13 mm         -               -

   - Armoured deck - multiple decks: 4.00" / 102 mm For and Aft decks
   Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 12.00" / 305 mm,  Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 16,659 ihp / 12,428 Kw = 18.00 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 3,512 tons (100% coal)

Complement:
   689 - 897

Cost:
   £1.175 million / $4.702 million

Distribution of weights at normal displacement:
   Armament: 790 tons, 5.1 %
   Armour: 5,752 tons, 37.4 %
      - Belts: 2,818 tons, 18.3 %
      - Armament: 1,217 tons, 7.9 %
      - Armour Deck: 1,558 tons, 10.1 %
      - Conning Tower: 160 tons, 1.0 %
   Machinery: 2,824 tons, 18.4 %
   Hull, fittings & equipment: 3,506 tons, 22.8 %
   Fuel, ammunition & stores: 2,494 tons, 16.2 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17,775 lbs / 8,063 Kg = 14.4 x 13.5 " / 343 mm shells or 2.2 torpedoes
   Stability (Unstable if below 1.00): 1.34
   Metacentric height 4.8 ft / 1.5 m
   Roll period: 13.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0.46
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.866 / 0.872
   Length to Beam Ratio: 5.22 : 1
   'Natural speed' for length: 18.97 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  18.00 ft / 5.49 m,  14.00 ft / 4.27 m
      - Forward deck:   30.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Aft deck:   35.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Quarter deck:   15.00 %,  14.00 ft / 4.27 m,  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): 79.8 %
      - Above water (accommodation/working, high = better): 89.9 %
   Waterplane Area: 23,232 Square feet or 2,158 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 124 lbs/sq ft or 607 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.92
      - Longitudinal: 1.97
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is cramped

[Darman]

Cressy, United Kingdom Armored Cruiser laid down 1897

Displacement:
   10,353 t light; 10,765 t standard; 14,118 t normal; 16,800 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (472.00 ft / 472.00 ft) x 69.50 ft x (27.00 / 31.07 ft)
   (143.87 m / 143.87 m) x 21.18 m  x (8.23 / 9.47 m)

Armament:
      2 - 9.20" / 234 mm 47.0 cal guns - 380.00lbs / 172.37kg shells, 60 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Single mounts on centreline ends, evenly spread
      12 - 6.00" / 152 mm 40.0 cal guns - 100.00lbs / 45.36kg shells, 125 per gun
     Breech loading guns in casemate mounts, 1897 Model
     12 x Single mounts on sides amidships
      8 hull mounts in casemates- Limited use in heavy seas
      12 - 3.00" / 76.2 mm 50.0 cal guns - 12.50lbs / 5.67kg shells, 250 per gun
     Quick firing guns in casemate mounts, 1897 Model
     12 x Single mounts on sides amidships
      4 raised mounts
      Weight of broadside 2,110 lbs / 957 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   6.00" / 152 mm   306.80 ft / 93.51 m   10.00 ft / 3.05 m
   Ends:   6.00" / 152 mm   165.18 ft / 50.35 m   10.00 ft / 3.05 m
   Upper:   6.00" / 152 mm   306.80 ft / 93.51 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   6.00" / 152 mm   4.00" / 102 mm      6.00" / 152 mm
   2nd:   5.00" / 127 mm         -               -
   3rd:   5.00" / 127 mm         -               -

   - Armoured deck - multiple decks: 3.00" / 76 mm For and Aft decks
   Forecastle: 1.00" / 25 mm  Quarter deck: 1.00" / 25 mm

   - Conning towers: Forward 12.00" / 305 mm,  Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 18,982 ihp / 14,160 Kw = 20.00 kts
   Range 9,000nm at 14.00 kts
   Bunker at max displacement = 6,036 tons (100% coal)

Complement:
   646 - 841

Cost:
   £0.939 million / $3.756 million

Distribution of weights at normal displacement:
   Armament: 436 tons, 3.1 %
   Armour: 3,471 tons, 24.6 %
      - Belts: 1,796 tons, 12.7 %
      - Armament: 394 tons, 2.8 %
      - Armour Deck: 1,130 tons, 8.0 %
      - Conning Tower: 151 tons, 1.1 %
   Machinery: 3,112 tons, 22.0 %
   Hull, fittings & equipment: 3,334 tons, 23.6 %
   Fuel, ammunition & stores: 3,765 tons, 26.7 %
   Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     18,649 lbs / 8,459 Kg = 47.9 x 9.2 " / 234 mm shells or 2.2 torpedoes
   Stability (Unstable if below 1.00): 1.53
   Metacentric height 6.0 ft / 1.8 m
   Roll period: 12.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 88 %
         - Recoil effect (Restricted arc if above 1.00): 0.16
   Seaboat quality  (Average = 1.00): 1.76

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.558 / 0.577
   Length to Beam Ratio: 6.79 : 1
   'Natural speed' for length: 21.73 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  21.00 ft / 6.40 m,  16.00 ft / 4.88 m
      - Forward deck:   30.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
      - Aft deck:   35.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
      - Quarter deck:   15.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
      - Average freeboard:      16.40 ft / 5.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 81.5 %
      - Above water (accommodation/working, high = better): 108.8 %
   Waterplane Area: 23,064 Square feet or 2,143 Square metres
   Displacement factor (Displacement / loading): 128 %
   Structure weight / hull surface area: 103 lbs/sq ft or 502 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.61
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Historic Ships: Cressy, Sutlej, Aboukir, Hogue, Bacchante, Euryalus

[Darman]

Aquitania, United Kingdom Passenger Liner laid down 1897
Corvette (Unarmoured)

Displacement:
   29,903 t light; 30,776 t standard; 40,325 t normal; 47,964 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (850.00 ft / 850.00 ft) x 90.00 ft x (35.00 / 40.12 ft)
   (259.08 m / 259.08 m) x 27.43 m  x (10.67 / 12.23 m)

Armament:
      6 - 6.00" / 152 mm 40.0 cal guns - 100.00lbs / 45.36kg shells, 200 per gun
     Breech loading guns in deck mounts, 1897 Model
     6 x Single mounts on sides, evenly spread
      Weight of broadside 600 lbs / 272 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 4 shafts, 22,523 ihp / 16,802 Kw = 18.00 kts
   Range 10,000nm at 16.00 kts
   Bunker at max displacement = 17,188 tons (100% coal)

Complement:
   1,422 - 1,849

Cost:
   £1.590 million / $6.358 million

Distribution of weights at normal displacement:
   Armament: 82 tons, 0.2 %
   Machinery: 3,692 tons, 9.2 %
   Hull, fittings & equipment: 13,128 tons, 32.6 %
   Fuel, ammunition & stores: 10,422 tons, 25.8 %
   Miscellaneous weights: 13,000 tons, 32.2 %
      - Hull below water: 5,000 tons
      - Hull above water: 8,000 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     79,982 lbs / 36,279 Kg = 740.6 x 6.0 " / 152 mm shells or 4.7 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 5.4 ft / 1.7 m
   Roll period: 16.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.04
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.527 / 0.547
   Length to Beam Ratio: 9.44 : 1
   'Natural speed' for length: 29.15 kts
   Power going to wave formation at top speed: 22 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  40.00 ft / 12.19 m,  40.00 ft / 12.19 m
      - Forward deck:   30.00 %,  40.00 ft / 12.19 m,  40.00 ft / 12.19 m
      - Aft deck:   35.00 %,  40.00 ft / 12.19 m,  40.00 ft / 12.19 m
      - Quarter deck:   15.00 %,  40.00 ft / 12.19 m,  40.00 ft / 12.19 m
      - Average freeboard:      40.00 ft / 12.19 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 66.3 %
      - Above water (accommodation/working, high = better): 280.0 %
   Waterplane Area: 52,260 Square feet or 4,855 Square metres
   Displacement factor (Displacement / loading): 195 %
   Structure weight / hull surface area: 126 lbs/sq ft or 616 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 2.91
      - 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

Misc Weight:
13,000t for 6,500 men in troopship role.  .  1/3 that number of civilian passengers. 

Cost: 7476t plus 82t weapons = 7558t

[Darman]

Dunottar Castle, United Kingdom Passenger Liner laid down 1897
Corvette (Unarmoured)

Displacement:
   6,164 t light; 6,377 t standard; 7,288 t normal; 8,017 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (433.00 ft / 433.00 ft) x 50.00 ft x (25.00 / 26.90 ft)
   (131.98 m / 131.98 m) x 15.24 m  x (7.62 / 8.20 m)

Armament:
      6 - 6.00" / 152 mm 40.0 cal guns - 100.00lbs / 45.36kg shells, 200 per gun
     Breech loading guns in deck mounts, 1897 Model
     6 x Single mounts on sides, evenly spread
      Weight of broadside 600 lbs / 272 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 6,968 ihp / 5,198 Kw = 17.00 kts
   Range 5,000nm at 12.00 kts
   Bunker at max displacement = 1,640 tons (100% coal)

Complement:
   393 - 512

Cost:
   £0.402 million / $1.607 million

Distribution of weights at normal displacement:
   Armament: 82 tons, 1.1 %
   Machinery: 1,142 tons, 15.7 %
   Hull, fittings & equipment: 1,940 tons, 26.6 %
   Fuel, ammunition & stores: 1,124 tons, 15.4 %
   Miscellaneous weights: 3,000 tons, 41.2 %
      - Hull below water: 1,000 tons
      - Hull above water: 2,000 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7,376 lbs / 3,346 Kg = 68.3 x 6.0 " / 152 mm shells or 1.2 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 2.1 ft / 0.6 m
   Roll period: 14.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.471 / 0.482
   Length to Beam Ratio: 8.66 : 1
   'Natural speed' for length: 20.81 kts
   Power going to wave formation at top speed: 32 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.00 ft / 6.10 m,  18.00 ft / 5.49 m
      - Forward deck:   30.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Aft deck:   35.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Quarter deck:   15.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
      - Average freeboard:      18.16 ft / 5.54 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99.8 %
      - Above water (accommodation/working, high = better): 117.3 %
   Waterplane Area: 13,446 Square feet or 1,249 Square metres
   Displacement factor (Displacement / loading): 132 %
   Structure weight / hull surface area: 75 lbs/sq ft or 368 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.41
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Misc Weight:
3,000for 1,500 men in troopship role.  .  1/3 that number of civilian passengers. 

Cost: 1541t plus 82t weapons = 1623t

[Darman]

Final Version

Royal Sovereign, Britain Battleship laid down 1890
Barbette ship

Displacement:
   13,119 t light; 13,642 t standard; 14,623 t normal; 15,408 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (410.00 ft / 410.00 ft) x 75.00 ft x (27.50 / 28.72 ft)
   (124.97 m / 124.97 m) x 22.86 m  x (8.38 / 8.75 m)

Armament:
      4 - 13.50" / 343 mm 30.0 cal guns - 1,133.89lbs / 514.32kg shells, 60 per gun
     Breech loading guns in open barbette mounts, 1890 Model
     2 x Single mounts on centreline ends, evenly spread
      6 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 125 per gun
     Breech loading guns in casemate mounts, 1890 Model
     6 x Single mounts on sides amidships
      6 raised mounts
      4 - 6.00" / 152 mm 40.0 cal guns - 103.51lbs / 46.95kg shells, 125 per gun
     Breech loading guns in casemate mounts, 1890 Model
     4 x Single mounts on sides amidships
      16 - 2.24" / 57.0 mm 40.0 cal guns - 5.42lbs / 2.46kg shells, 150 per gun
     Breech loading guns in deck mounts, 1890 Model
     16 x Single mounts on sides amidships
      16 raised mounts
      Weight of broadside 5,657 lbs / 2,566 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   15.0" / 381 mm   266.50 ft / 81.23 m   8.50 ft / 2.59 m
   Ends:   13.0" / 330 mm   143.48 ft / 43.73 m   8.50 ft / 2.59 m
   Upper:   4.00" / 102 mm   266.50 ft / 81.23 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:         -            -         15.0" / 381 mm
   2nd:   3.00" / 76 mm         -               -
   3rd:   4.00" / 102 mm   4.00" / 102 mm            -
   4th:   0.50" / 13 mm         -               -

   - Armoured deck - single deck: 3.00" / 76 mm For and Aft decks
   Forecastle: 2.50" / 64 mm  Quarter deck: 2.50" / 64 mm

   - Conning towers: Forward 15.00" / 381 mm,  Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 12,545 ihp / 9,358 Kw = 17.50 kts
   Range 4,700nm at 10.00 kts
   Bunker at max displacement = 1,767 tons (100% coal)

Complement:
   664 - 864

Cost:
   £1.045 million / $4.181 million

Distribution of weights at normal displacement:
   Armament: 768 tons, 5.2 %
   Armour: 5,620 tons, 38.4 %
      - Belts: 2,493 tons, 17.0 %
      - Armament: 1,709 tons, 11.7 %
      - Armour Deck: 1,225 tons, 8.4 %
      - Conning Tower: 193 tons, 1.3 %
   Machinery: 2,436 tons, 16.7 %
   Hull, fittings & equipment: 4,289 tons, 29.3 %
   Fuel, ammunition & stores: 1,504 tons, 10.3 %
   Miscellaneous weights: 6 tons, 0.0 %
      - On freeboard deck: 6 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     22,337 lbs / 10,132 Kg = 18.2 x 13.5 " / 343 mm shells or 2.8 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 5.6 ft / 1.7 m
   Roll period: 13.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.51
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.605 / 0.611
   Length to Beam Ratio: 5.47 : 1
   'Natural speed' for length: 20.25 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  22.27 ft / 6.79 m,  19.50 ft / 5.94 m
      - Forward deck:   30.00 %,  19.50 ft / 5.94 m,  19.50 ft / 5.94 m
      - Aft deck:   35.00 %,  19.50 ft / 5.94 m,  19.50 ft / 5.94 m
      - Quarter deck:   15.00 %,  19.50 ft / 5.94 m,  19.50 ft / 5.94 m
      - Average freeboard:      19.72 ft / 6.01 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 70.5 %
      - Above water (accommodation/working, high = better): 126.4 %
   Waterplane Area: 22,600 Square feet or 2,100 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 139 lbs/sq ft or 681 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.89
      - Longitudinal: 2.77
      - 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

Miscelleneous Weight
6t for 2 bow torpedo tubes (14") plus 4 reloads. 

Historic Vessels: Royal Sovereign, Hood, Empress of India, Ramillies, Repulse, Resolution, Revenge, Royal Oak. 

[Darman]

Final Version

Centurian, United Kingdom Battleship 2nd class laid down 1890

Displacement:
   9,050 t light; 9,358 t standard; 10,349 t normal; 11,142 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (360.00 ft / 360.00 ft) x 70.00 ft x (25.50 / 27.06 ft)
   (109.73 m / 109.73 m) x 21.34 m  x (7.77 / 8.25 m)

Armament:
      4 - 10.00" / 254 mm 32.0 cal guns - 463.86lbs / 210.40kg shells, 60 per gun
     Breech loading guns in turret on barbette mounts, 1890 Model
     4 x Single mounts on centreline ends, evenly spread
      6 - 4.70" / 119 mm 40.0 cal guns - 49.75lbs / 22.57kg shells, 100 per gun
     Breech loading guns in casemate mounts, 1890 Model
     6 x Single mounts on sides amidships
      6 - 4.70" / 119 mm 40.0 cal guns - 49.75lbs / 22.57kg shells, 100 per gun
     Breech loading guns in deck mounts, 1890 Model
     6 x Single mounts on sides amidships
      6 raised mounts
      18 - 1.85" / 47.0 mm 40.0 cal guns - 3.04lbs / 1.38kg shells, 200 per gun
     Breech loading guns in deck mounts, 1890 Model
     18 x Single mounts on sides amidships
      18 raised mounts
      Weight of broadside 2,507 lbs / 1,137 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12.0" / 305 mm   234.00 ft / 71.32 m   10.04 ft / 3.06 m
   Ends:   9.00" / 229 mm   125.98 ft / 38.40 m   10.04 ft / 3.06 m
   Upper:   4.00" / 102 mm   234.00 ft / 71.32 m   8.00 ft / 2.44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   6.00" / 152 mm   6.00" / 152 mm      9.00" / 229 mm
   2nd:   6.00" / 152 mm   6.00" / 152 mm      6.00" / 152 mm
   3rd:   5.00" / 127 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armoured deck - single deck: 2.50" / 64 mm For and Aft decks
   Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 12.00" / 305 mm,  Aft 0.00" / 0 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 9,371 ihp / 6,991 Kw = 17.00 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 1,783 tons (100% coal)

Complement:
   512 - 666

Cost:
   £0.723 million / $2.892 million

Distribution of weights at normal displacement:
   Armament: 457 tons, 4.4 %
   Armour: 3,810 tons, 36.8 %
      - Belts: 2,030 tons, 19.6 %
      - Armament: 857 tons, 8.3 %
      - Armour Deck: 800 tons, 7.7 %
      - Conning Tower: 123 tons, 1.2 %
   Machinery: 1,820 tons, 17.6 %
   Hull, fittings & equipment: 2,913 tons, 28.2 %
   Fuel, ammunition & stores: 1,299 tons, 12.5 %
   Miscellaneous weights: 50 tons, 0.5 %
      - Hull below water: 50 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15,144 lbs / 6,869 Kg = 30.3 x 10.0 " / 254 mm shells or 2.4 torpedoes
   Stability (Unstable if below 1.00): 1.32
   Metacentric height 4.8 ft / 1.5 m
   Roll period: 13.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 94 %
         - Recoil effect (Restricted arc if above 1.00): 0.35
   Seaboat quality  (Average = 1.00): 1.87

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.564 / 0.572
   Length to Beam Ratio: 5.14 : 1
   'Natural speed' for length: 18.97 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  20.00 ft / 6.10 m,  17.00 ft / 5.18 m
      - Forward deck:   30.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Aft deck:   35.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Quarter deck:   15.00 %,  17.00 ft / 5.18 m,  17.00 ft / 5.18 m
      - Average freeboard:      17.24 ft / 5.25 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 71.7 %
      - Above water (accommodation/working, high = better): 112.7 %
   Waterplane Area: 17,814 Square feet or 1,655 Square metres
   Displacement factor (Displacement / loading): 116 %
   Structure weight / hull surface area: 119 lbs/sq ft or 581 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.89
      - Longitudinal: 2.68
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Historic Ships: Centurian, Barfleur

[Darman]

Final Version

Alarm, United Kingdom Torpedo Gun Boat laid down 1898 (Engine 1900)

Displacement:
   785 t light; 813 t standard; 880 t normal; 933 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (242.00 ft / 242.00 ft) x 27.00 ft x (12.50 / 12.97 ft)
   (73.76 m / 73.76 m) x 8.23 m  x (3.81 / 3.95 m)

Armament:
      2 - 4.70" / 119 mm 45.0 cal guns - 52.35lbs / 23.75kg shells, 150 per gun
     Quick firing guns in deck mounts, 1898 Model
     2 x Single mounts on centreline ends, evenly spread
      4 - 1.85" / 47.0 mm 40.0 cal guns - 3.04lbs / 1.38kg shells, 250 per gun
     Quick firing guns in deck mounts, 1898 Model
     4 x Single mounts on sides amidships
      Weight of broadside 117 lbs / 53 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.50" / 13 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 3,238 ihp / 2,415 Kw = 19.00 kts
   Range 750nm at 15.00 kts
   Bunker at max displacement = 120 tons (100% coal)

Complement:
   80 - 105

Cost:
   £0.093 million / $0.372 million

Distribution of weights at normal displacement:
   Armament: 21 tons, 2.4 %
   Armour: 2 tons, 0.3 %
      - Armament: 2 tons, 0.3 %
   Machinery: 428 tons, 48.7 %
   Hull, fittings & equipment: 325 tons, 36.9 %
   Fuel, ammunition & stores: 95 tons, 10.8 %
   Miscellaneous weights: 9 tons, 1.0 %
      - On freeboard deck: 9 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     465 lbs / 211 Kg = 9.0 x 4.7 " / 119 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 10.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.25
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.377 / 0.385
   Length to Beam Ratio: 8.96 : 1
   'Natural speed' for length: 15.56 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  15.00 ft / 4.57 m,  14.00 ft / 4.27 m
      - Forward deck:   30.00 %,  14.00 ft / 4.27 m,  14.00 ft / 4.27 m
      - Aft deck:   35.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Quarter deck:   15.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Average freeboard:      11.58 ft / 3.53 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 163.9 %
      - Above water (accommodation/working, high = better): 106.3 %
   Waterplane Area: 3,962 Square feet or 368 Square metres
   Displacement factor (Displacement / loading): 82 %
   Structure weight / hull surface area: 40 lbs/sq ft or 197 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.85
      - Longitudinal: 4.11
      - Overall: 1.00
   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
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

6t misc weight at deck-level for 3 loaded torpedo tubes (2 fixed forward, 1 revolving centerline) plus 3 reloads (1 each). 

11 built: Alarm, Jason, Circe, Hebe, Onyx, Leda, Jaseur, Renard, Niger, Speedy, Antelope