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21

Friday, November 25th 2011, 9:01pm



16 ships
Names: Echo, Eclipse, Eden, Envoy, Exite, Endeavour, Encounter, Escort, Excentric, Eagle, Emerald, Echelon, Edict, Ebullient, Effusion, Epaulette

E class, Mexico (ex-Atlantis) Destroyer laid down 1918

Displacement:
1,216 t light; 1,254 t standard; 1,351 t normal; 1,428 t full load

Dimensions: Length overall / water x beam x draught
340.63 ft / 335.00 ft x 32.00 ft x 10.50 ft (normal load)
103.82 m / 102.11 m x 9.75 m x 3.20 m

Armament:
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1918 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 129 lbs / 59 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 34,434 shp / 25,687 Kw = 33.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 174 tons

Complement:
110 - 144

Cost:
£0.326 million / $1.304 million

Distribution of weights at normal displacement:
Armament: 16 tons, 1.2 %
Machinery: 763 tons, 56.5 %
Hull, fittings & equipment: 417 tons, 30.9 %
Fuel, ammunition & stores: 134 tons, 10.0 %
Miscellaneous weights: 20 tons, 1.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
313 lbs / 142 Kg = 9.8 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 1.3 ft / 0.4 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.28
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.420
Length to Beam Ratio: 10.47 : 1
'Natural speed' for length: 18.30 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 (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (30 %): 20.00 ft / 6.10 m
- Mid (40 %): 20.00 ft / 6.10 m (10.00 ft / 3.05 m aft of break)
- Quarterdeck (10 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 14.12 ft / 4.30 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 193.0 %
- Above water (accommodation/working, high = better): 82.9 %
Waterplane Area: 6,683 Square feet or 621 Square metres
Displacement factor (Displacement / loading): 51 %
Structure weight / hull surface area: 31 lbs/sq ft or 154 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 1.88
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform

22

Sunday, March 15th 2015, 9:46am

Admiralty Type 1916


Original configuration

32 ships

Refited: (16 ships) Uproar, Upstart, Upstage, Unruly, Uncouth, Unorthodox, Unity, Underhand, Upbeat, Upset, Upstage, Ultar, Unerring, Undying, Unnerve and Unswerving sold to Colombia

Converted: (2 ships) Upsurge and Uprising, taken out of service

Decomissioned awaiting sale or disposal: (4 ships) Union, Unicorn, Unique and Undermine

8 ships: (Ursa, Umbra, Underpin, Unfeeling, Unseen and Unmoved,Underwing, Upshur) sold to Colombia

2 Ships: Urainia, Uphold sold to Chile after conversion to SC tenders.

Admiralty class DD, Atlantis Destroyer laid down 1916

Displacement:
1,123 t light; 1,156 t standard; 1,244 t normal; 1,315 t full load

Dimensions: Length overall / water x beam x draught
310.00 ft / 310.00 ft x 30.00 ft x 10.50 ft (normal load)
94.49 m / 94.49 m x 9.14 m x 3.20 m

Armament:
3 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1916 Model
Breech loading guns in deck mounts
on centreline ends, majority aft
2 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 97 lbs / 44 kg
Shells per gun, main battery: 150
4 - 18.0" / 457.2 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 39,799 shp / 29,690 Kw = 34.00 kts
Range 4,500nm at 10.00 kts
Bunker at max displacement = 159 tons

Complement:
104 - 136

Cost:
£0.253 million / $1.011 million

Distribution of weights at normal displacement:
Armament: 12 tons, 1.0 %
Machinery: 750 tons, 60.3 %
Hull, fittings & equipment: 341 tons, 27.4 %
Fuel, ammunition & stores: 121 tons, 9.7 %
Miscellaneous weights: 20 tons, 1.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
249 lbs / 113 Kg = 7.8 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.3 ft / 0.4 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 0.72

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.446
Length to Beam Ratio: 10.33 : 1
'Natural speed' for length: 17.61 kts
Power going to wave formation at top speed: 71 %
Trim (Max stability = 0, Max steadiness = 100): 83
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: 20.00 ft / 6.10 m
- Forecastle (20 %): 18.00 ft / 5.49 m
- Mid (40 %): 10.00 ft / 3.05 m
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 12.56 ft / 3.83 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 203.6 %
- Above water (accommodation/working, high = better): 95.1 %
Waterplane Area: 5,913 Square feet or 549 Square metres
Displacement factor (Displacement / loading): 40 %
Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.52
- Longitudinal: 1.67
- Overall: 0.58
Hull space for machinery, storage, compartmentation is extremely poor
Room for accommodation and workspaces is adequate
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

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

Rebuilt version

Uproar, Upstart, Upstage, Unruly, Uncouth, Unorthodox, Unity and Underhand all rebuilt

Admiralty class DD Refit, Atlantis Destroyer laid down 1916 (Engine 1926)

Displacement:
1,130 t light; 1,171 t standard; 1,244 t normal; 1,303 t full load

Dimensions: Length overall / water x beam x draught
313.53 ft / 310.00 ft x 30.00 ft x 10.50 ft (normal load)
95.56 m / 94.49 m x 9.14 m x 3.20 m

Armament:
4 - 4.50" / 114 mm guns (2x2 guns), 45.56lbs / 20.67kg shells, 1926 Model
Quick firing guns in deck mounts with hoists
on centreline ends, evenly spread
2 - 1.57" / 39.9 mm guns (1x2 guns), 1.93lbs / 0.88kg shells, 1926 Model
Anti-aircraft guns in deck mount
on centreline amidships
8 - 1.00" / 25.4 mm guns (4x2 guns), 0.50lbs / 0.23kg shells, 1926 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 190 lbs / 86 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 30,570 shp / 22,805 Kw = 32.00 kts
Range 4,500nm at 10.00 kts
Bunker at max displacement = 131 tons

Complement:
104 - 136

Cost:
£0.245 million / $0.979 million

Distribution of weights at normal displacement:
Armament: 24 tons, 1.9 %
Armour: 9 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 643 tons, 51.7 %
Hull, fittings & equipment: 435 tons, 34.9 %
Fuel, ammunition & stores: 114 tons, 9.2 %
Miscellaneous weights: 20 tons, 1.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
330 lbs / 150 Kg = 7.2 x 4.5 " / 114 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 0.9 ft / 0.3 m
Roll period: 13.6 seconds
Steadiness - As gun platform (Average = 50 %): 65 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 0.78

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.446
Length to Beam Ratio: 10.33 : 1
'Natural speed' for length: 17.61 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 83
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: 20.00 ft / 6.10 m
- Forecastle (20 %): 18.00 ft / 5.49 m
- Mid (40 %): 10.00 ft / 3.05 m
- Quarterdeck (15 %): 10.00 ft / 3.05 m
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 12.56 ft / 3.83 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 183.2 %
- Above water (accommodation/working, high = better): 67.6 %
Waterplane Area: 5,913 Square feet or 549 Square metres
Displacement factor (Displacement / loading): 57 %
Structure weight / hull surface area: 38 lbs/sq ft or 187 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.62
- Longitudinal: 1.95
- Overall: 0.70
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather