Torpedobootjagers

Korpen · March 31, 2007, 09:43:32 AM

Torpedoboots of the marine.
Nomenclature change, as of 1916: a "J" prefix will be added in front of the class letter, so the Jager G15 Will become JG15

Korpen · March 31, 2007, 09:47:22 AM

C Class, Netherlands Torpedoboot laid down 1895
26 Ships in class
C1 - C8 Built 1895
C9 - C12 Built 1896
C13 - C 26 Built 1897

Displacement:
   422 t light; 432 t standard; 471 t normal; 502 t full load

Dimensions: Length overall / water x beam x draught
   180,45 ft / 180,45 ft x 20,01 ft x 10,01 ft (normal load)
   55,00 m / 55,00 m x 6,10 m x 3,05 m

Armament:
2 - 1,97" / 50,0 mm guns in single mounts, 3,81lbs / 1,73kg shells, 1895 Model
     Quick firing guns in deck mounts
     on centreline, all aft, all raised mounts - superfiring
2 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1895 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 8 lbs / 3 kg
   Shells per gun, main battery: 150
   2 - 17,7" / 450 mm above water torpedoes

Armour:

- Conning tower: 0,98" / 25 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5 664 ihp / 4 225 Kw = 23,00 kts
   Range 1 000nm at 12,00 kts
   Bunker at max displacement = 71 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   49 - 65

Cost:
   £0,054 million / $0,217 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0,2 %
   Armour: 1 tons, 0,3 %
     - Belts: 0 tons, 0,0 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 0 tons, 0,0 %
     - Armour Deck: 0 tons, 0,0 %
     - Conning Tower: 1 tons, 0,3 %
   Machinery: 277 tons, 58,8 %
   Hull, fittings & equipment: 138 tons, 29,4 %
   Fuel, ammunition & stores: 49 tons, 10,5 %
   Miscellaneous weights: 4 tons, 0,8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     121 lbs / 55 Kg = 31,8 x 2,0 " / 50 mm shells or 0,1 torpedoes
   Stability (Unstable if below 1.00): 1,27
   Metacentric height 0,7 ft / 0,2 m
   Roll period: 10,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 65 %
         - Recoil effect (Restricted arc if above 1.00): 0,04
   Seaboat quality (Average = 1.00): 1,29

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,456
   Length to Beam Ratio: 9,02 : 1
   'Natural speed' for length: 13,43 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      16,40 ft / 5,00 m
     - Forecastle (25 %):   16,40 ft / 5,00 m (8,20 ft / 2,50 m aft of break)
     - Mid (50 %):      8,20 ft / 2,50 m
     - Quarterdeck (15 %):   8,20 ft / 2,50 m
     - Stern:      8,20 ft / 2,50 m
     - Average freeboard:   10,25 ft / 3,13 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 192,3 %
      - Above water (accommodation/working, high = better): 53,8 %
   Waterplane Area: 2 315 Square feet or 215 Square metres
   Displacement factor (Displacement / loading): 24 %
   Structure weight / hull surface area: 24 lbs/sq ft or 119 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,64
      - Longitudinal: 4,81
      - Overall: 0,79
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Good seaboat, rides out heavy weather easily

Post Refit:

C Class, Netherlands Enter ship type laid down 1895

C21-C26 Refitted 1/1912
C13-C14, C17-C20 refitted 2/1912

C-1 to C12 is out of service
Displacement:
   422 t light; 432 t standard; 471 t normal; 502 t full load

Dimensions: Length overall / water x beam x draught
   180,45 ft / 180,45 ft x 20,01 ft x 10,01 ft (normal load)
   55,00 m / 55,00 m x 6,10 m x 3,05 m

Armament:
2 - 1,97" / 50,0 mm guns in single mounts, 3,81lbs / 1,73kg shells, 1895 Model
     Quick firing guns in deck mounts
     on centreline, all aft, all raised mounts - superfiring
2 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1895 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 8 lbs / 3 kg
   Shells per gun, main battery: 150
   2 - 17,7" / 450 mm above water torpedoes

Armour:

- Conning tower: 0,98" / 25 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5 662 ihp / 4 224 Kw = 23,00 kts
   Range 1 000nm at 12,00 kts
   Bunker at max displacement = 71 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   49 - 65

Cost:
   £0,054 million / $0,215 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0,2 %
   Armour: 1 tons, 0,3 %
     - Belts: 0 tons, 0,0 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 0 tons, 0,0 %
     - Armour Deck: 0 tons, 0,0 %
     - Conning Tower: 1 tons, 0,3 %
   Machinery: 273 tons, 57,9 %
   Hull, fittings & equipment: 107 tons, 22,7 %
   Fuel, ammunition & stores: 49 tons, 10,5 %
   Miscellaneous weights: 40 tons, 8,5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     85 lbs / 38 Kg = 22,2 x 2,0 " / 50 mm shells or 0,1 torpedoes
   Stability (Unstable if below 1.00): 1,16
   Metacentric height 0,6 ft / 0,2 m
   Roll period: 10,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 65 %
         - Recoil effect (Restricted arc if above 1.00): 0,04
   Seaboat quality (Average = 1.00): 1,30

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,456
   Length to Beam Ratio: 9,02 : 1
   'Natural speed' for length: 13,43 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      16,40 ft / 5,00 m
     - Forecastle (25 %):   16,40 ft / 5,00 m (8,20 ft / 2,50 m aft of break)
     - Mid (50 %):      8,20 ft / 2,50 m
     - Quarterdeck (15 %):   8,20 ft / 2,50 m
     - Stern:      8,20 ft / 2,50 m
     - Average freeboard:   10,25 ft / 3,13 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 197,4 %
      - Above water (accommodation/working, high = better): 53,8 %
   Waterplane Area: 2 315 Square feet or 215 Square metres
   Displacement factor (Displacement / loading): 24 %
   Structure weight / hull surface area: 19 lbs/sq ft or 92 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 3,72
      - Overall: 0,61
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Good seaboat, rides out heavy weather easily

The refit consist of fitting a small radio set, and rails for up to 36 heavy mines.

Korpen · March 31, 2007, 09:57:25 AM

D-class, Netherlands Torpedoboot laid laid down 1899
9 Ships in class
3 Ships lost during the war.

6 ships delivered to the DKB 2/1911
Class out of service in the Kingdom.

Displacement:
   656 t light; 678 t standard; 725 t normal; 762 t full load

Dimensions: Length overall / water x beam x draught
   223,10 ft / 223,10 ft x 27,56 ft x 9,84 ft (normal load)
   68,00 m / 68,00 m x 8,40 m x 3,00 m

Armament:
2 - 3,94" / 100 mm guns in single mounts, 37,48lbs / 17,00kg shells, 1899 Model
     Quick firing guns in deck mounts
     on centreline ends, evenly spread, all raised mounts
4 - 1,97" / 50,0 mm guns in single mounts, 3,81lbs / 1,73kg shells, 1899 Model
     Quick firing guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 90 lbs / 41 kg
   Shells per gun, main battery: 150
   4 - 17,7" / 450 mm above water torpedoes

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,98" / 25 mm     -           -
   2nd:   0,98" / 25 mm     -           -

- Conning tower: 0,98" / 25 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 9 333 ihp / 6 963 Kw = 25,00 kts
   Range 1 000nm at 12,00 kts
   Bunker at max displacement = 84 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   69 - 90

Cost:
   £0,092 million / $0,366 million

Distribution of weights at normal displacement:
   Armament: 10 tons, 1,3 %
   Armour: 9 tons, 1,3 %
     - Belts: 0 tons, 0,0 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 8 tons, 1,1 %
     - Armour Deck: 0 tons, 0,0 %
     - Conning Tower: 2 tons, 0,2 %
   Machinery: 433 tons, 59,7 %
   Hull, fittings & equipment: 196 tons, 27,0 %
   Fuel, ammunition & stores: 69 tons, 9,5 %
   Miscellaneous weights: 8 tons, 1,1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     180 lbs / 82 Kg = 5,9 x 3,9 " / 100 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,56
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 9,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0,12
   Seaboat quality (Average = 1.00): 1,02

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0,419
   Length to Beam Ratio: 8,10 : 1
   'Natural speed' for length: 14,94 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      15,35 ft / 4,68 m
     - Forecastle (20 %):   14,76 ft / 4,50 m (9,84 ft / 3,00 m aft of break)
     - Mid (50 %):      9,84 ft / 3,00 m
     - Quarterdeck (15 %):   9,84 ft / 3,00 m
     - Stern:      9,84 ft / 3,00 m
     - Average freeboard:   10,87 ft / 3,31 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 204,0 %
      - Above water (accommodation/working, high = better): 70,9 %
   Waterplane Area: 3 831 Square feet or 356 Square metres
   Displacement factor (Displacement / loading): 24 %
   Structure weight / hull surface area: 28 lbs/sq ft or 135 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,58
      - Longitudinal: 2,29
      - Overall: 0,66
   Hull space for machinery, storage, compartmentation is extremely poor
   Room for accommodation and workspaces is cramped

Korpen · March 31, 2007, 09:58:44 AM

E-Class, Netherlands Torpedoboot laid down 1902 (Engine 1905)

23 Ships in class built
4 Sunk during the war. (E11, E12, E14 & E15)

Displacement:
   700 t light; 722 t standard; 810 t normal; 881 t full load

Dimensions: Length overall / water x beam x draught
   236,08 ft / 229,66 ft x 26,25 ft x 10,50 ft (normal load)
   71,96 m / 70,00 m x 8,00 m x 3,20 m

Armament:
1 - 4,72" / 120 mm guns in single mounts, 46,30lbs / 21,00kg shells, 1902 Model
     Quick firing gun in deck mount
     on centreline forward, 1 raised gun
2 - 3,46" / 88,0 mm guns in single mounts, 19,84lbs / 9,00kg shells, 1902 Model
     Quick firing guns in deck mounts
     on centreline, all aft, 1 raised mount
4 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1902 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 86 lbs / 39 kg
   Shells per gun, main battery: 90
   4 - 17,7" / 450 mm above water torpedoes

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm     -           -

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 14 750 shp / 11 004 Kw = 27,42 kts
   Range 1 700nm at 12,00 kts
   Bunker at max displacement = 159 tons (90% coal)
     Caution: Delicate, lightweight machinery

Complement:
   75 - 98

Cost:
   £0,100 million / $0,400 million

Distribution of weights at normal displacement:
   Armament: 12 tons, 1,5 %
   Armour: 1 tons, 0,1 %
     - Belts: 0 tons, 0,0 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 1 tons, 0,1 %
     - Armour Deck: 0 tons, 0,0 %
     - Conning Tower: 0 tons, 0,0 %
   Machinery: 468 tons, 57,7 %
   Hull, fittings & equipment: 214 tons, 26,4 %
   Fuel, ammunition & stores: 110 tons, 13,5 %
   Miscellaneous weights: 6 tons, 0,7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     206 lbs / 93 Kg = 3,9 x 4,7 " / 120 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,53
   Metacentric height 1,4 ft / 0,4 m
   Roll period: 9,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 54 %
         - Recoil effect (Restricted arc if above 1.00): 0,16
   Seaboat quality (Average = 1.00): 1,07

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,448
   Length to Beam Ratio: 8,75 : 1
   'Natural speed' for length: 15,15 kts
   Power going to wave formation at top speed: 71 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 16,00 degrees
   Stern overhang: 1,64 ft / 0,50 m
   Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      16,67 ft / 5,08 m
     - Forecastle (20 %):   16,40 ft / 5,00 m
     - Mid (53 %):      16,40 ft / 5,00 m (8,20 ft / 2,50 m aft of break)
     - Quarterdeck (15 %):   8,20 ft / 2,50 m
     - Stern:      8,20 ft / 2,50 m
     - Average freeboard:   12,57 ft / 3,83 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 197,8 %
      - Above water (accommodation/working, high = better): 81,3 %
   Waterplane Area: 3 839 Square feet or 357 Square metres
   Displacement factor (Displacement / loading): 32 %
   Structure weight / hull surface area: 25 lbs/sq ft or 124 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 3,37
      - Overall: 0,60
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped

Post 1912-13 Refit:

E-Class, Nederländerna Torpedoboot laid down 1902 (Engine 1905)

Displacement:
697 t light; 721 t standard; 810 t normal; 881 t full load

Dimensions: Length overall / water x beam x draught
229,66 ft / 229,66 ft x 26,25 ft x 10,50 ft (normal load)
70,00 m / 70,00 m x 8,00 m x 3,20 m

Armament:
1 - 4,72" / 120 mm guns in single mounts, 46,30lbs / 21,00kg shells, 1902 Model
Quick firing gun in deck mount
on centreline forward, 1 raised gun
2 - 4,72" / 120 mm guns in single mounts, 46,30lbs / 21,00kg shells, 1902 Model
Quick firing guns in deck mounts
on centreline, all aft, 1 raised mount
4 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1902 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 139 lbs / 63 kg
Shells per gun, main battery: 90
4 - 17,7" / 450 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 3 shafts, 14 750 shp / 11 004 Kw = 27,42 kts
Range 2 300nm at 12,00 kts
Bunker at max displacement = 160 tons

Complement:
75 - 98

Cost:
£0,104 million / $0,416 million

Distribution of weights at normal displacement:
Armament: 20 tons, 2,4 %
Armour: 1 tons, 0,1 %
- Belts: 0 tons, 0,0 %
- Torpedo bulkhead: 0 tons, 0,0 %
- Armament: 1 tons, 0,1 %
- Armour Deck: 0 tons, 0,0 %
- Conning Tower: 0 tons, 0,0 %
Machinery: 450 tons, 55,5 %
Hull, fittings & equipment: 221 tons, 27,2 %
Fuel, ammunition & stores: 113 tons, 14,0 %
Miscellaneous weights: 6 tons, 0,7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
204 lbs / 93 Kg = 3,9 x 4,7 " / 120 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,51
Metacentric height 1,4 ft / 0,4 m
Roll period: 9,5 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0,26
Seaboat quality (Average = 1.00): 1,06

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,448
Length to Beam Ratio: 8,75 : 1
'Natural speed' for length: 15,15 kts
Power going to wave formation at top speed: 71 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16,67 ft / 5,08 m
- Forecastle (20 %): 16,40 ft / 5,00 m
- Mid (53 %): 16,40 ft / 5,00 m (8,20 ft / 2,50 m aft of break)
- Quarterdeck (15 %): 8,20 ft / 2,50 m
- Stern: 8,20 ft / 2,50 m
- Average freeboard: 12,57 ft / 3,83 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 197,8 %
- Above water (accommodation/working, high = better): 81,3 %
Waterplane Area: 3 839 Square feet or 357 Square metres
Displacement factor (Displacement / loading): 34 %
Structure weight / hull surface area: 26 lbs/sq ft or 127 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 3,41
- Overall: 0,60
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped

Korpen · April 14, 2007, 01:02:13 AM

F-Class, Nederländerna Torpedobootjager laid down 1906 (Engine 1905)

Displacement:
   750 t light; 777 t standard; 886 t normal; 973 t full load
15 (F5-F19) Ships in class in service, F1-F4 lost in the war

Dimensions: Length overall / water x beam x draught
   288,28 ft / 278,87 ft x 25,75 ft x 9,19 ft (normal load)
   87,87 m / 85,00 m x 7,85 m x 2,80 m

Armament:
3 - 3,94" / 100 mm guns in single mounts, 37,48lbs / 17,00kg shells, 1906 Model
     Quick firing guns in deck mounts
     on centreline ends, majority aft, 1 raised mount aft
4 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1906 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 113 lbs / 51 kg
   Shells per gun, main battery: 150
   4 - 17,7" / 450 mm above water torpedoes

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm     -           -

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 14 000 shp / 10 444 Kw = 27,60 kts
   Range 2 000nm at 12,00 kts
   Bunker at max displacement = 196 tons (90% coal)

Complement:
   80 - 105

Cost:
   £0,107 million / $0,427 million

Distribution of weights at normal displacement:
   Armament: 11 tons, 1,3 %
   Armour: 2 tons, 0,3 %
     - Belts: 0 tons, 0,0 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 2 tons, 0,3 %
     - Armour Deck: 0 tons, 0,0 %
     - Conning Tower: 0 tons, 0,0 %
   Machinery: 505 tons, 57,0 %
   Hull, fittings & equipment: 216 tons, 24,4 %
   Fuel, ammunition & stores: 136 tons, 15,3 %
   Miscellaneous weights: 15 tons, 1,7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     215 lbs / 98 Kg = 7,0 x 3,9 " / 100 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,63
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 8,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 61 %
         - Recoil effect (Restricted arc if above 1.00): 0,17
   Seaboat quality (Average = 1.00): 1,21

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,470
   Length to Beam Ratio: 10,83 : 1
   'Natural speed' for length: 16,70 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 25,00 degrees
   Stern overhang: 1,64 ft / 0,50 m
   Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      16,67 ft / 5,08 m
     - Forecastle (20 %):   16,40 ft / 5,00 m
     - Mid (40 %):      16,40 ft / 5,00 m (8,20 ft / 2,50 m aft of break)
     - Quarterdeck (15 %):   8,20 ft / 2,50 m
     - Stern:      8,20 ft / 2,50 m
     - Average freeboard:   11,50 ft / 3,51 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 195,9 %
      - Above water (accommodation/working, high = better): 86,5 %
   Waterplane Area: 4 659 Square feet or 433 Square metres
   Displacement factor (Displacement / loading): 37 %
   Structure weight / hull surface area: 23 lbs/sq ft or 112 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,60
      - Overall: 0,56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Good seaboat, rides out heavy weather easily

Korpen · November 26, 2007, 04:55:38 PM

G-Class, Netherlands Jager laid down 1909

24 Ships in class.

Displacement:
   750 t light; 786 t standard; 915 t normal; 1 018 t full load

Dimensions: Length overall / water x beam x draught
   285,61 ft / 280,51 ft x 28,05 ft x 9,78 ft (normal load)
   87,05 m / 85,50 m x 8,55 m x 2,98 m

Armament:
5 - 4,72" / 120 mm guns in single mounts, 46,30lbs / 21,00kg shells, 1909 Model
     Breech loading guns in deck mounts
     on centreline ends, majority aft, 3 raised mounts - superfiring
2 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1909 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 232 lbs / 105 kg
   Shells per gun, main battery: 140
   4 - 17,7" / 450 mm above water torpedoes

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm     -           -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 17 222 shp / 12 848 Kw = 29,00 kts
   Range 4 000nm at 12,00 kts    350m at 29,00 kts
   Bunker at max displacement = 232 tons

Complement:
   83 - 108

Cost:
   £0,115 million / $0,462 million

Distribution of weights at normal displacement:
   Armament: 33 tons, 3,6 %
   Armour: 5 tons, 0,6 %
     - Belts: 0 tons, 0,0 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 5 tons, 0,6 %
     - Armour Deck: 0 tons, 0,0 %
     - Conning Tower: 0 tons, 0,0 %
   Machinery: 440 tons, 48,0 %
   Hull, fittings & equipment: 252 tons, 27,6 %
   Fuel, ammunition & stores: 165 tons, 18,1 %
   Miscellaneous weights: 20 tons, 2,1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     238 lbs / 108 Kg = 4,5 x 4,7 " / 120 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,39
   Metacentric height 1,3 ft / 0,4 m
   Roll period: 10,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,36
   Seaboat quality (Average = 1.00): 1,05

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,416
   Length to Beam Ratio: 10,00 : 1
   'Natural speed' for length: 16,75 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): 15,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      19,03 ft / 5,80 m
     - Forecastle (15 %):   17,06 ft / 5,20 m
     - Mid (31 %):      17,06 ft / 5,20 m (9,19 ft / 2,80 m aft of break)
     - Quarterdeck (10 %):   9,19 ft / 2,80 m
     - Stern:      9,19 ft / 2,80 m
     - Average freeboard:   11,78 ft / 3,59 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 184,4 %
      - Above water (accommodation/working, high = better): 92,0 %
   Waterplane Area: 4 893 Square feet or 455 Square metres
   Displacement factor (Displacement / loading): 49 %
   Structure weight / hull surface area: 27 lbs/sq ft or 131 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,76
      - Overall: 0,56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

Korpen · April 10, 2008, 06:59:40 AM

H-Class, Netherlands Jager laid down 1912

Class of 24

Displacement:
   1 000 t light; 1 046 t standard; 1 284 t normal; 1 475 t full load

Dimensions: Length overall / water x beam x draught
   329,90 ft / 324,80 ft x 29,53 ft x 11,27 ft (normal load)
   100,55 m / 99,00 m x 9,00 m x 3,43 m

Armament:
5 - 4,72" / 120 mm guns in single mounts, 52,91lbs / 24,00kg shells, 1912 Model
     Breech loading guns in deck mounts
     on centreline ends, majority aft, 3 raised mounts - superfiring
2 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1912 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 265 lbs / 120 kg
   Shells per gun, main battery: 140
   4 - 17,7" / 450 mm above water torpedoes

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm     -           -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 21 504 shp / 16 042 Kw = 29,70 kts
   Range 7 000nm at 12,00 kts
   Bunker at max displacement = 429 tons

Complement:
   106 - 139

Cost:
   £0,148 million / $0,593 million

Distribution of weights at normal displacement:
   Armament: 33 tons, 2,6 %
   Armour: 5 tons, 0,4 %
     - Belts: 0 tons, 0,0 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 5 tons, 0,4 %
     - Armour Deck: 0 tons, 0,0 %
     - Conning Tower: 0 tons, 0,0 %
   Machinery: 612 tons, 47,6 %
   Hull, fittings & equipment: 310 tons, 24,1 %
   Fuel, ammunition & stores: 285 tons, 22,2 %
   Miscellaneous weights: 40 tons, 3,1 %
     - Firecontrol 25ton
     - Radio 10ton
     - Torpedoes 5ton
Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     330 lbs / 150 Kg = 6,3 x 4,7 " / 120 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,45
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 10,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 73 %
         - Recoil effect (Restricted arc if above 1.00): 0,31
   Seaboat quality (Average = 1.00): 1,11

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,416
   Length to Beam Ratio: 11,00 : 1
   'Natural speed' for length: 18,02 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): 15,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      19,03 ft / 5,80 m
     - Forecastle (15 %):   17,06 ft / 5,20 m
     - Mid (32 %):      17,06 ft / 5,20 m (9,19 ft / 2,80 m aft of break)
     - Quarterdeck (10 %):   9,19 ft / 2,80 m
     - Stern:      9,19 ft / 2,80 m
     - Average freeboard:   11,82 ft / 3,60 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 176,6 %
      - Above water (accommodation/working, high = better): 93,5 %
   Waterplane Area: 5 963 Square feet or 554 Square metres
   Displacement factor (Displacement / loading): 63 %
   Structure weight / hull surface area: 27 lbs/sq ft or 133 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,24
      - Overall: 0,54
   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

Korpen · January 07, 2009, 02:35:41 AM

I-Class, Netherlands Jager laid down 1916
JI1 to JI4 laid down 2/1915
JI5 to JI9 laid down 1/1916

Displacement:
   1 500 t light; 1 608 t standard; 1 944 t normal; 2 213 t full load

Dimensions: Length overall / water x beam x draught
   393,70 ft / 393,70 ft x 33,46 ft x 12,14 ft (normal load)
   120,00 m / 120,00 m x 10,20 m x 3,70 m

Armament:
10 - 4,72" / 120 mm guns (5x2 guns), 61,73lbs / 28,00kg shells, 1916 Model
     Breech loading guns in deck mounts with hoists
     on centreline, evenly spread, 3 raised mounts
2 - 0,59" / 15,0 mm guns in single mounts, 0,10lbs / 0,05kg shells, 1916 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
4 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1916 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 618 lbs / 280 kg
   Shells per gun, main battery: 200
   6 - 17,7" / 450 mm above water torpedoes

Armour:
- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm     -           -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 26 655 shp / 19 884 Kw = 30,08 kts
   Range 9 000nm at 12,00 kts
   Bunker at max displacement = 606 tons

Complement:
   146 - 190

Cost:
   £0,368 million / $1,471 million

Distribution of weights at normal displacement:
   Armament: 66 tons, 3,4 %
   Armour: 9 tons, 0,5 %
     - Belts: 0 tons, 0,0 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 9 tons, 0,5 %
     - Armour Deck: 0 tons, 0,0 %
     - Conning Tower: 0 tons, 0,0 %
   Machinery: 835 tons, 42,9 %
   Hull, fittings & equipment: 530 tons, 27,3 %
   Fuel, ammunition & stores: 444 tons, 22,8 %
   Miscellaneous weights: 60 tons, 3,1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     510 lbs / 231 Kg = 9,7 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,40
   Metacentric height 1,7 ft / 0,5 m
   Roll period: 10,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 52 %
         - Recoil effect (Restricted arc if above 1.00): 0,84
   Seaboat quality (Average = 1.00): 1,08

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,425
   Length to Beam Ratio: 11,76 : 1
   'Natural speed' for length: 19,84 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 48
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
     - Stem:      19,69 ft / 6,00 m
     - Forecastle (15 %):   17,55 ft / 5,35 m
     - Mid (38 %):      17,55 ft / 5,35 m (9,19 ft / 2,80 m aft of break)
     - Quarterdeck (10 %):   9,19 ft / 2,80 m
     - Stern:      11,15 ft / 3,40 m
     - Average freeboard:   12,59 ft / 3,84 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): 98,2 %
   Waterplane Area: 8 246 Square feet or 766 Square metres
   Displacement factor (Displacement / loading): 75 %
   Structure weight / hull surface area: 36 lbs/sq ft or 175 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 0,88
      - Overall: 0,52
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate

870nm @ full speed
2370nm @ 21kts
3500nm @ 18kts
5450nm @ 15kts