New Norman Destroyers

[Earl822]

Large batch of fleet destroyers, intended for general duties, and to replace older ships in service.
This design may become available for licenced construction by other nations.

E & J Class, United Norman Kingdom Destroyer laid down 1908 (Engine 1909)

Displacement:
   750 t light; 778 t standard; 938 t normal; 1,065 t full load

Dimensions: Length overall / water x beam x draught
   302.47 ft / 300.00 ft x 28.60 ft x 8.50 ft (normal load)
   92.19 m / 91.44 m x 8.72 m  x 2.59 m

Armament:
      5 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1908 Model
     Quick firing guns in deck mounts
     on centreline ends, majority forward, 2 raised mounts - superfiring
      4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1908 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      8 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1908 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 79 lbs / 36 kg
   Shells per gun, main battery: 190
   4 - 18.0" / 457.2 mm above water torpedoes

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

   - Conning tower: 3.00" / 76 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 14,762 shp / 11,012 Kw = 28.00 kts
   Range 4,880nm at 12.00 kts
   Bunker at max displacement = 287 tons

Complement:
   84 - 110

Cost:
   £0.100 million / $0.401 million

Distribution of weights at normal displacement:
   Armament: 10 tons, 1.1 %
   Armour: 10 tons, 1.1 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 4 tons, 0.4 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 6 tons, 0.7 %
   Machinery: 469 tons, 50.1 %
   Hull, fittings & equipment: 237 tons, 25.3 %
   Fuel, ammunition & stores: 187 tons, 20.0 %
   Miscellaneous weights: 24 tons, 2.6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     306 lbs / 139 Kg = 22.7 x 3.0 " / 76 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.52
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 9.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.11
   Seaboat quality  (Average = 1.00): 1.17

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.450
   Length to Beam Ratio: 10.49 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   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:      14.00 ft / 4.27 m
      - Forecastle (10 %):   12.00 ft / 3.66 m
      - Mid (50 %):      11.50 ft / 3.51 m
      - Quarterdeck (10 %):   11.00 ft / 3.35 m
      - Stern:      12.00 ft / 3.66 m
      - Average freeboard:   11.63 ft / 3.54 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172.9 %
      - Above water (accommodation/working, high = better): 109.0 %
   Waterplane Area: 5,473 Square feet or 508 Square metres
   Displacement factor (Displacement / loading): 64 %
   Structure weight / hull surface area: 24 lbs/sq ft or 117 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.22
      - 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

HMS Echo, Eclipse, Electra, Encounter, Escapade, Escort, Esk & Escape
HMS Jackal, Jaguar, Janus, Javelin, Jersey, Jervis, Juno & Jupiter

[The Rock Doctor]

Close in design to current Gran Colombian models - therefore, I approve.

[maddox]

France is inquiring about a French version for these vessels.

[miketr]

A lot more range than my own design.  Some general comments

Thats 17 gun stations, 5 of which are major ones is there room on the hull for all that and 4 tubes?

I really like the range.

Michael

[Earl822]

I reckon so.

[Carthaginian]

My own new design gets 4 25-pounders and 4 57mm's on a similar sized hull, and everything (barely) fits. The only problem I see is that either two of the 12-pounders will have to go to the sides of the ship, or the torps will have to be side-mounted, thus only allowing 2 to fire into either broadside.

[Earl822]

I'm gonna reduce the number of MG's and put the 40mm's in twins ala this:-

E & J Class, United Norman Kingdom Destroyer laid down 1908 (Engine 1909)

Displacement:
   750 t light; 778 t standard; 938 t normal; 1,065 t full load

Dimensions: Length overall / water x beam x draught
   302.47 ft / 300.00 ft x 28.60 ft x 8.50 ft (normal load)
   92.19 m / 91.44 m x 8.72 m  x 2.59 m

Armament:
      5 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1908 Model
     Quick firing guns in deck mounts
     on centreline ends, majority forward, 2 raised mounts - superfiring
      4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1908 Model
     Quick firing guns in deck mounts
     on side, all amidships
      4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1908 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 77 lbs / 35 kg
   Shells per gun, main battery: 190
   4 - 18.0" / 457.2 mm above water torpedoes

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

   - Conning tower: 3.00" / 76 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 14,762 shp / 11,012 Kw = 28.00 kts
   Range 4,886nm at 12.00 kts
   Bunker at max displacement = 287 tons

Complement:
   84 - 110

Cost:
   £0.100 million / $0.401 million

Distribution of weights at normal displacement:
   Armament: 10 tons, 1.0 %
   Armour: 10 tons, 1.1 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 4 tons, 0.4 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 6 tons, 0.7 %
   Machinery: 470 tons, 50.1 %
   Hull, fittings & equipment: 237 tons, 25.3 %
   Fuel, ammunition & stores: 187 tons, 20.0 %
   Miscellaneous weights: 24 tons, 2.6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     306 lbs / 139 Kg = 22.7 x 3.0 " / 76 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.52
   Metacentric height 1.6 ft / 0.5 m
   Roll period: 9.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.10
   Seaboat quality  (Average = 1.00): 1.17

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.450
   Length to Beam Ratio: 10.49 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   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:      14.00 ft / 4.27 m
      - Forecastle (10 %):   12.00 ft / 3.66 m
      - Mid (50 %):      11.50 ft / 3.51 m
      - Quarterdeck (10 %):   11.00 ft / 3.35 m
      - Stern:      12.00 ft / 3.66 m
      - Average freeboard:   11.63 ft / 3.54 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172.8 %
      - Above water (accommodation/working, high = better): 109.0 %
   Waterplane Area: 5,473 Square feet or 508 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 24 lbs/sq ft or 117 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.22
      - 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

HMS Echo, Eclipse, Electra, Encounter, Escapade, Escort, Esk & Escape
HMS Jackal, Jaguar, Janus, Javelin, Jersey, Jervis, Juno & Jupiter