DD-G Class

[TacCovert4]

DD-G, Aztec Destroyer laid down 1922

Displacement:
   1,500 t light; 1,559 t standard; 1,773 t normal; 1,944 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (366.17 ft / 360.89 ft) x 30.51 ft x (11.50 / 12.32 ft)
   (111.61 m / 110.00 m) x 9.30 m  x (3.51 / 3.76 m)

Armament:
      6 - 3.94" / 100 mm 50.0 cal guns - 32.30lbs / 14.65kg shells, 200 per gun
     Quick firing guns in deck mounts, 1922 Model
     3 x Twin mounts on centreline ends, majority forward
      1 raised mount - superfiring
      4 - 1.18" / 30.0 mm 50.0 cal guns - 0.87lbs / 0.40kg shells, 1,000 per gun
     Anti-air guns in deck and hoist mounts, 1922 Model
     2 x Single mounts on centreline, aft deck forward
      8 - 0.47" / 12.0 mm 70.0 cal guns - 0.06lbs / 0.03kg shells, 2,000 per gun
     Machine guns in deck mounts, 1922 Model
     4 x Twin mounts on sides, evenly spread
      Weight of broadside 198 lbs / 90 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.06" / 27 mm         -               -
   2nd:         -            -         0.98" / 25 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 40,692 shp / 30,356 Kw = 33.11 kts
   Range 5,000nm at 14.00 kts
   Bunker at max displacement = 385 tons

Complement:
   136 - 177

Cost:
   £0.556 million / $2.225 million

Distribution of weights at normal displacement:
   Armament: 34 tons, 1.9 %
      - Guns: 34 tons, 1.9 %
   Armour: 7 tons, 0.4 %
      - Armament: 7 tons, 0.4 %
   Machinery: 1,001 tons, 56.5 %
   Hull, fittings & equipment: 417 tons, 23.5 %
   Fuel, ammunition & stores: 273 tons, 15.4 %
   Miscellaneous weights: 40 tons, 2.3 %
      - On freeboard deck: 36 tons
      - Above deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     392 lbs / 178 Kg = 12.8 x 3.9 " / 100 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.25
   Metacentric height 1.3 ft / 0.4 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.27
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.490 / 0.501
   Length to Beam Ratio: 11.83 : 1
   'Natural speed' for length: 19.00 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 15.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.69 ft / 6.00 m,  18.04 ft / 5.50 m
      - Forward deck:   30.00 %,  18.04 ft / 5.50 m,  16.40 ft / 5.00 m
      - Aft deck:   35.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   15.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Average freeboard:      13.83 ft / 4.22 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 189.0 %
      - Above water (accommodation/working, high = better): 134.9 %
   Waterplane Area: 7,271 Square feet or 675 Square metres
   Displacement factor (Displacement / loading): 61 %
   Structure weight / hull surface area: 29 lbs/sq ft or 144 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.47
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform


36t - 3 x 3 x 21in HW TT Centerline
4t - 1918 FC

Trials Speed 34kt
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[TacCovert4]

DE-G, Aztec Escort Destroyer laid down 1922

Displacement:
   1,500 t light; 1,559 t standard; 1,773 t normal; 1,944 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (366.17 ft / 360.89 ft) x 30.51 ft x (11.50 / 12.32 ft)
   (111.61 m / 110.00 m) x 9.30 m  x (3.51 / 3.76 m)

Armament:
      6 - 3.54" / 90.0 mm 55.0 cal guns - 24.01lbs / 10.89kg shells, 200 per gun
     Dual purpose guns in deck mounts, 1922 Model
     3 x Twin mounts on centreline ends, majority forward
      1 raised mount - superfiring
      4 - 1.18" / 30.0 mm 50.0 cal guns - 0.86lbs / 0.39kg shells, 1,000 per gun
     Anti-air guns in deck and hoist mounts, 1922 Model
     2 x Single mounts on centreline, aft deck forward
      8 - 1.18" / 30.0 mm 50.0 cal guns - 0.87lbs / 0.40kg shells, 1,500 per gun
     Anti-air guns in deck mounts, 1922 Model
     8 x Single mounts on sides, evenly spread
      Weight of broadside 154 lbs / 70 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.06" / 27 mm         -               -
   2nd:         -            -         0.98" / 25 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 40,692 shp / 30,356 Kw = 33.11 kts
   Range 5,000nm at 14.00 kts
   Bunker at max displacement = 385 tons

Complement:
   136 - 177

Cost:
   £0.553 million / $2.212 million

Distribution of weights at normal displacement:
   Armament: 33 tons, 1.9 %
      - Guns: 33 tons, 1.9 %
   Armour: 7 tons, 0.4 %
      - Armament: 7 tons, 0.4 %
   Machinery: 1,003 tons, 56.6 %
   Hull, fittings & equipment: 412 tons, 23.2 %
   Fuel, ammunition & stores: 273 tons, 15.4 %
   Miscellaneous weights: 45 tons, 2.5 %
      - Hull below water: 15 tons
      - On freeboard deck: 26 tons
      - Above deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     393 lbs / 178 Kg = 17.7 x 3.5 " / 90 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 1.3 ft / 0.4 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.20
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.490 / 0.501
   Length to Beam Ratio: 11.83 : 1
   'Natural speed' for length: 19.00 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 15.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.69 ft / 6.00 m,  18.04 ft / 5.50 m
      - Forward deck:   30.00 %,  18.04 ft / 5.50 m,  16.40 ft / 5.00 m
      - Aft deck:   35.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   15.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Average freeboard:      13.83 ft / 4.22 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 189.6 %
      - Above water (accommodation/working, high = better): 134.9 %
   Waterplane Area: 7,271 Square feet or 675 Square metres
   Displacement factor (Displacement / loading): 61 %
   Structure weight / hull surface area: 29 lbs/sq ft or 142 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.45
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform


16t - 1 x 4 x 21in HW TT Centerline
10t - Depth Charges

15t - Adv Hydrophones


4t - 1918 FC

Trials Speed 34kt