1. Fleet Replinishment Law (1920-1925)

[ledeper]

Ocean-class II, Esc Bb laid down 1922

Displacement:
   35.001 t light; 36.997 t standard; 39.503 t normal; 41.508 t full load

Dimensions: Length overall / water x beam x draught
   721,39 ft / 718,01 ft x 108,27 ft x 31,99 ft (normal load)
   219,88 m / 218,85 m x 33,00 m  x 9,75 m

Armament:
     9 - 15,94" / 405 mm guns (3x3 guns), 2.026,91lbs / 919,39kg shells, 1922 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
     12 - 5,91" / 150 mm guns (6x2 guns), 102,98lbs / 46,71kg shells, 1922 Model
     Quick firing guns in deck mounts
     on side, all amidships
     10 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1922 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 19.497 lbs / 8.844 kg
   Shells per gun, main battery: 110

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13,8" / 350 mm   431,89 ft / 131,64 m   14,76 ft / 4,50 m
   Ends:   Unarmoured
   Upper:   3,94" / 100 mm   431,89 ft / 131,64 m   8,01 ft / 2,44 m
     Main Belt covers 93 % of normal length

  - Torpedo Bulkhead:
      1,97" / 50 mm   431,89 ft / 131,64 m   29,23 ft / 8,91 m

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,8" / 350 mm   9,84" / 250 mm      13,8" / 350 mm
   2nd:   2,95" / 75 mm   0,79" / 20 mm            -
   3rd:   0,79" / 20 mm         -               -

  - Armour deck: 5,91" / 150 mm, Conning tower: 11,81" / 300 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 4 shafts, 74.649 shp / 55.688 Kw = 25,00 kts
   Range 9.000nm at 14,00 kts
   Bunker at max displacement = 4.511 tons

Complement:
   1.400 - 1.821

Cost:
   £9,891 million / $39,565 million

Distribution of weights at normal displacement:
   Armament: 2.437 tons, 6,2 %
   Armour: 14.505 tons, 36,7 %
      - Belts: 4.488 tons, 11,4 %
      - Torpedo bulkhead: 920 tons, 2,3 %
      - Armament: 2.842 tons, 7,2 %
      - Armour Deck: 5.961 tons, 15,1 %
      - Conning Tower: 295 tons, 0,7 %
   Machinery: 2.532 tons, 6,4 %
   Hull, fittings & equipment: 14.877 tons, 37,7 %
   Fuel, ammunition & stores: 4.501 tons, 11,4 %
   Miscellaneous weights: 650 tons, 1,6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     47.808 lbs / 21.685 Kg = 23,6 x 15,9 " / 405 mm shells or 8,2 torpedoes
   Stability (Unstable if below 1.00): 1,05
   Metacentric height 6,1 ft / 1,9 m
   Roll period: 18,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,56
   Seaboat quality  (Average = 1.00): 1,12

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,556
   Length to Beam Ratio: 6,63 : 1
   'Natural speed' for length: 26,80 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 64
   Bow angle (Positive = bow angles forward): 9,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21,33 ft / 6,50 m
      - Forecastle (10 %):   16,40 ft / 5,00 m
      - Mid (50 %):      16,40 ft / 5,00 m
      - Quarterdeck (15 %):   16,40 ft / 5,00 m
      - Stern:      16,40 ft / 5,00 m
      - Average freeboard:   16,60 ft / 5,06 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 85,4 %
      - Above water (accommodation/working, high = better): 121,8 %
   Waterplane Area: 54.558 Square feet or 5.069 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 207 lbs/sq ft or 1.013 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,99
      - Longitudinal: 1,16
      - 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


Ocean-class II, Esc Bb laid down 1924

Displacement:
   34.851 t light; 36.842 t standard; 39.290 t normal; 41.248 t full load

Dimensions: Length overall / water x beam x draught
   721,39 ft / 718,01 ft x 108,27 ft x 31,99 ft (normal load)
   219,88 m / 218,85 m x 33,00 m  x 9,75 m

Armament:
     9 - 15,94" / 405 mm guns (3x3 guns), 2.026,91lbs / 919,39kg shells, 1924 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
     12 - 5,91" / 150 mm guns (6x2 guns), 102,98lbs / 46,71kg shells, 1924 Model
     Quick firing guns in deck mounts
     on side, all amidships
     10 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1924 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 19.497 lbs / 8.844 kg
   Shells per gun, main battery: 110

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13,8" / 350 mm   431,89 ft / 131,64 m   14,76 ft / 4,50 m
   Ends:   Unarmoured
   Upper:   3,94" / 100 mm   431,89 ft / 131,64 m   8,01 ft / 2,44 m
     Main Belt covers 93 % of normal length

  - Torpedo Bulkhead:
      1,97" / 50 mm   431,89 ft / 131,64 m   29,23 ft / 8,91 m

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,8" / 350 mm   9,84" / 250 mm      13,8" / 350 mm
   2nd:   2,95" / 75 mm   0,79" / 20 mm            -
   3rd:   0,79" / 20 mm         -               -

  - Armour deck: 5,91" / 150 mm, Conning tower: 11,81" / 300 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 4 shafts, 74.319 shp / 55.442 Kw = 25,00 kts
   Range 9.000nm at 14,00 kts
   Bunker at max displacement = 4.406 tons

Complement:
   1.394 - 1.813

Cost:
   £11,157 million / $44,629 million

Distribution of weights at normal displacement:
   Armament: 2.437 tons, 6,2 %
   Armour: 14.486 tons, 36,9 %
      - Belts: 4.487 tons, 11,4 %
      - Torpedo bulkhead: 920 tons, 2,3 %
      - Armament: 2.842 tons, 7,2 %
      - Armour Deck: 5.944 tons, 15,1 %
      - Conning Tower: 294 tons, 0,7 %
   Machinery: 2.448 tons, 6,2 %
   Hull, fittings & equipment: 14.830 tons, 37,7 %
   Fuel, ammunition & stores: 4.439 tons, 11,3 %
   Miscellaneous weights: 650 tons, 1,7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     47.766 lbs / 21.666 Kg = 23,6 x 15,9 " / 405 mm shells or 8,2 torpedoes
   Stability (Unstable if below 1.00): 1,04
   Metacentric height 6,1 ft / 1,9 m
   Roll period: 18,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,56
   Seaboat quality  (Average = 1.00): 1,12

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,553
   Length to Beam Ratio: 6,63 : 1
   'Natural speed' for length: 26,80 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 64
   Bow angle (Positive = bow angles forward): 9,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21,33 ft / 6,50 m
      - Forecastle (10 %):   16,40 ft / 5,00 m
      - Mid (50 %):      16,40 ft / 5,00 m
      - Quarterdeck (15 %):   16,40 ft / 5,00 m
      - Stern:      16,40 ft / 5,00 m
      - Average freeboard:   16,60 ft / 5,06 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 85,0 %
      - Above water (accommodation/working, high = better): 121,9 %
   Waterplane Area: 54.405 Square feet or 5.054 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 207 lbs/sq ft or 1.012 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,98
      - Longitudinal: 1,16
      - 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

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Panzer-shiffe, Esc Panzer-shiffe laid down 1920

Displacement:
   20.034 t light; 20.931 t standard; 22.767 t normal; 24.237 t full load

Dimensions: Length overall / water x beam x draught
   721,92 ft / 718,01 ft x 78,74 ft x 26,25 ft (normal load)
   220,04 m / 218,85 m x 24,00 m  x 8,00 m

Armament:
     9 - 11,02" / 280 mm guns (3x3 guns), 669,80lbs / 303,81kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, majority forward, 1 raised mount - superfiring
     8 - 4,92" / 125 mm guns (4x2 guns), 59,59lbs / 27,03kg shells, 1920 Model
     Quick firing guns in deck mounts
     on side, all amidships
     4 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 6.513 lbs / 2.954 kg
   Shells per gun, main battery: 120

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9,84" / 250 mm   406,82 ft / 124,00 m   13,94 ft / 4,25 m
   Ends:   Unarmoured
   Upper:   5,91" / 150 mm   406,82 ft / 124,00 m   8,01 ft / 2,44 m
     Main Belt covers 87 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9,84" / 250 mm   5,91" / 150 mm      7,87" / 200 mm
   2nd:   1,97" / 50 mm   0,79" / 20 mm            -

  - Armour deck: 2,95" / 75 mm, Conning tower: 7,87" / 200 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 4 shafts, 110.455 shp / 82.399 Kw = 30,50 kts
   Range 9.000nm at 14,00 kts
   Bunker at max displacement = 3.306 tons

Complement:
   926 - 1.204

Cost:
   £4,552 million / $18,207 million

Distribution of weights at normal displacement:
   Armament: 814 tons, 3,6 %
   Armour: 6.654 tons, 29,2 %
      - Belts: 3.231 tons, 14,2 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 1.157 tons, 5,1 %
      - Armour Deck: 2.129 tons, 9,4 %
      - Conning Tower: 136 tons, 0,6 %
   Machinery: 3.862 tons, 17,0 %
   Hull, fittings & equipment: 8.254 tons, 36,3 %
   Fuel, ammunition & stores: 2.733 tons, 12,0 %
   Miscellaneous weights: 450 tons, 2,0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     25.413 lbs / 11.527 Kg = 37,9 x 11,0 " / 280 mm shells or 2,6 torpedoes
   Stability (Unstable if below 1.00): 1,02
   Metacentric height 3,6 ft / 1,1 m
   Roll period: 17,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,65
   Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,537
   Length to Beam Ratio: 9,12 : 1
   'Natural speed' for length: 26,80 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 10,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,15 ft / 6,75 m
      - Forecastle (20 %):   18,04 ft / 5,50 m
      - Mid (50 %):      18,04 ft / 5,50 m
      - Quarterdeck (15 %):   18,04 ft / 5,50 m
      - Stern:      18,04 ft / 5,50 m
      - Average freeboard:   18,37 ft / 5,60 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84,8 %
      - Above water (accommodation/working, high = better): 144,7 %
   Waterplane Area: 38.979 Square feet or 3.621 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 145 lbs/sq ft or 707 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,99
      - Longitudinal: 1,02
      - 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

-------------------------------------------------------------------------------------------------------
Lc 30-, Enter country Enter ship type laid down 1920

Displacement:
   6.583 t light; 6.812 t standard; 7.533 t normal; 8.110 t full load

Dimensions: Length overall / water x beam x draught
   512,00 ft / 508,53 ft x 62,34 ft x 19,69 ft (normal load)
   156,06 m / 155,00 m x 19,00 m  x 6,00 m

Armament:
      9 - 5,91" / 150 mm guns (3x3 guns), 102,98lbs / 46,71kg shells, 1920 Model
     Quick firing guns in deck mounts with hoists
     on centreline ends, majority forward, 1 raised mount - superfiring
      4 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 935 lbs / 424 kg
   Shells per gun, main battery: 150
   4 - 19,7" / 500 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   1,97" / 50 mm   341,21 ft / 104,00 m   18,04 ft / 5,50 m
   Ends:   Unarmoured
     Main Belt covers 103 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5,91" / 150 mm   3,94" / 100 mm            -
   2nd:   0,39" / 10 mm         -               -

   - Armour deck: 1,97" / 50 mm, Conning tower: 3,94" / 100 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 3 shafts, 57.754 shp / 43.084 Kw = 30,00 kts
   Range 7.000nm at 14,00 kts
   Bunker at max displacement = 1.298 tons

Complement:
   403 - 525

Cost:
   £1,445 million / $5,779 million

Distribution of weights at normal displacement:
   Armament: 117 tons, 1,6 %
   Armour: 1.419 tons, 18,8 %
      - Belts: 509 tons, 6,8 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 143 tons, 1,9 %
      - Armour Deck: 734 tons, 9,7 %
      - Conning Tower: 33 tons, 0,4 %
   Machinery: 2.019 tons, 26,8 %
   Hull, fittings & equipment: 2.778 tons, 36,9 %
   Fuel, ammunition & stores: 950 tons, 12,6 %
   Miscellaneous weights: 250 tons, 3,3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8.308 lbs / 3.768 Kg = 80,7 x 5,9 " / 150 mm shells or 1,4 torpedoes
   Stability (Unstable if below 1.00): 1,12
   Metacentric height 3,0 ft / 0,9 m
   Roll period: 14,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,26
   Seaboat quality  (Average = 1.00): 1,02

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,446
   Length to Beam Ratio: 8,61 : 1
   'Natural speed' for length: 22,55 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 10,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      19,69 ft / 6,00 m
      - Forecastle (10 %):   15,78 ft / 4,81 m
      - Mid (50 %):      15,78 ft / 4,81 m
      - Quarterdeck (15 %):   15,78 ft / 4,81 m
      - Stern:      15,78 ft / 4,81 m
      - Average freeboard:   15,94 ft / 4,86 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102,9 %
      - Above water (accommodation/working, high = better): 138,8 %
   Waterplane Area: 20.155 Square feet or 1.872 Square metres
   Displacement factor (Displacement / loading): 113 %
   Structure weight / hull surface area: 93 lbs/sq ft or 455 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,96
      - Longitudinal: 1,42
      - 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

Torpedoes 100 tns(5 reloads) or 100 mines
FC  100tns
L/R W/L 25 tns
Reserve 25 tns
-----------------------------------------------------------------------------------------------------
Dd 40-55, Esc Dd laid down 1920

Displacement:
   1.492 t light; 1.554 t standard; 2.002 t normal; 2.360 t full load

Dimensions: Length overall / water x beam x draught
   386,87 ft / 383,86 ft x 41,01 ft x 11,15 ft (normal load)
   117,92 m / 117,00 m x 12,50 m  x 3,40 m

Armament:
     4 - 4,92" / 125 mm guns (2x2 guns), 59,59lbs / 27,03kg shells, 1920 Model
     Quick firing guns in deck mounts
     on centreline, all forward
     2 - 4,92" / 125 mm guns in single mounts, 59,59lbs / 27,03kg shells, 1920 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, all raised mounts
     4 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 365 lbs / 166 kg
   Shells per gun, main battery: 100
   4 - 19,7" / 500 mm above water torpedoes

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 27.646 shp / 20.624 Kw = 30,00 kts
   Range 9.800nm at 14,00 kts
   Bunker at max displacement = 806 tons

Complement:
   149 - 194

Cost:
   £0,503 million / $2,013 million

Distribution of weights at normal displacement:
   Armament: 46 tons, 2,3 %
   Machinery: 874 tons, 43,7 %
   Hull, fittings & equipment: 502 tons, 25,1 %
   Fuel, ammunition & stores: 510 tons, 25,5 %
   Miscellaneous weights: 70 tons, 3,5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     726 lbs / 329 Kg = 12,2 x 4,9 " / 125 mm shells or 0,4 torpedoes
   Stability (Unstable if below 1.00): 1,56
   Metacentric height 2,8 ft / 0,8 m
   Roll period: 10,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,14
   Seaboat quality  (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,399
   Length to Beam Ratio: 9,36 : 1
   'Natural speed' for length: 19,59 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 10,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      17,06 ft / 5,20 m
      - Forecastle (20 %):   13,12 ft / 4,00 m
      - Mid (50 %):      13,12 ft / 4,00 m
      - Quarterdeck (15 %):   13,12 ft / 4,00 m
      - Stern:      13,12 ft / 4,00 m
      - Average freeboard:   13,44 ft / 4,10 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 161,9 %
      - Above water (accommodation/working, high = better): 137,5 %
   Waterplane Area: 9.685 Square feet or 900 Square metres
   Displacement factor (Displacement / loading): 85 %
   Structure weight / hull surface area: 34 lbs/sq ft or 164 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,51
      - Longitudinal: 0,85
      - Overall: 0,54
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform

Trail speed 30.5 knts
Range at max speed:1200 Nm
Torpedoes24 tns (1 reload)
L/RW/L 25tns
Reserve 24 tns(for depthcharges/throwers)


--------------------------------------------------------------------------------------------

ASW Corvette, Esc ASW Corvette laid down 1920

Displacement:
   614 t light; 643 t standard; 898 t normal; 1.102 t full load

Dimensions: Length overall / water x beam x draught
   215,57 ft / 213,25 ft x 32,81 ft x 10,83 ft (normal load)
   65,71 m / 65,00 m x 10,00 m  x 3,30 m

Armament:
     2 - 4,92" / 125 mm guns in single mounts, 59,59lbs / 27,03kg shells, 1920 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
     4 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 127 lbs / 58 kg
   Shells per gun, main battery: 150

Machinery:
   Diesel Internal combustion motors,
   Direct drive, 2 shafts, 5.415 shp / 4.039 Kw = 21,00 kts
   Range 8.500nm at 14,00 kts
   Bunker at max displacement = 460 tons

Complement:
   81 - 106

Cost:
   £0,145 million / $0,580 million

Distribution of weights at normal displacement:
   Armament: 16 tons, 1,8 %
   Machinery: 189 tons, 21,1 %
   Hull, fittings & equipment: 309 tons, 34,4 %
   Fuel, ammunition & stores: 284 tons, 31,7 %
   Miscellaneous weights: 100 tons, 11,1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1.242 lbs / 563 Kg = 20,8 x 4,9 " / 125 mm shells or 0,6 torpedoes
   Stability (Unstable if below 1.00): 1,17
   Metacentric height 1,3 ft / 0,4 m
   Roll period: 12,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0,13
   Seaboat quality  (Average = 1.00): 1,07

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,415
   Length to Beam Ratio: 6,50 : 1
   'Natural speed' for length: 14,60 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 10,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      13,12 ft / 4,00 m
      - Forecastle (10 %):   10,24 ft / 3,12 m
      - Mid (50 %):      10,24 ft / 3,12 m
      - Quarterdeck (15 %):   10,24 ft / 3,12 m
      - Stern:      10,24 ft / 3,12 m
      - Average freeboard:   10,35 ft / 3,16 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 94,6 %
      - Above water (accommodation/working, high = better): 104,6 %
   Waterplane Area: 4.347 Square feet or 404 Square metres
   Displacement factor (Displacement / loading): 148 %
   Structure weight / hull surface area: 44 lbs/sq ft or 217 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,89
      - Longitudinal: 2,88
      - 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

Misc Weight:
L/R W/L  25 Tns
Depth Charges 25 tns
Trowers 25 tnsReserve 25 tns
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U boats:
Displacement:
(tons)	757 (sf)
998 (sm)
1165 (total)
Length: (m)	65,80 oa
50,07 ph
Beam: (m)	6,20 oa
4,18 ph
Draught: (draft)	3,88 m
Height:	9,35 m
Power: (hp)	2400 (sf)
1200 (sm)
Speed:
(knots)	15,6 (sf)
8,6 (sm)
Range:
(miles / knots)	11380/8 (sf)
56/5 (sm)
Torpedoes:	16
4/2 (bow / stern tubes)
Mines:	No mines carried
Deck gun:	10,5cm
140 rounds
Crew:	36 men
Max depth:	ca. 50 m
(164 feet)
sm = submerged, sf = surfaced, ph = pressure hull,
oa = overall, hp = horsepower.