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Thursday, May 15th 2003, 12:47am

Saved thread - this Destroyer dos AAA work and rading

17inc
Spammer wanna be
Posts: 9
(4/22/03 1:31:10 am)
this Destroyer dos AAA work and rading
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this one built as AAA escort to CVs and rading comes well aftere the treaty is gone


battle axe class, Australian Destroyer laid down 1939

Displacement:
4,802 t light; 4,945 t standard; 5,450 t normal; 5,833 t full load
Loading submergence 352 tons/feet

Dimensions:
377.00 ft x 55.00 ft x 20.00 ft (normal load)

Armament:
8 - 4.5 " (114 mm) (4 Main turrets x 2 guns)
17 - 1.56 " (40 mm) AA
20 - 0.8 " (20 mm)
Weight of broadside 402 lbs (182 kg)
14 - 21 " above water torpedoes

Machinery:
66,164 shp steam turbines, oil fired boilers = 31.00 kts, range 6,100nm at 15.00 kts

Complement:
317 - 412

Cost:
£2.682 million / $10.726 million

Distribution of weights at normal displacement:
Armament: 50 tons, 0.9 %
Machinery: 1,790 tons, 32.8 %
Hull, fittings & equipment: 2,962 tons, 54.3 %
Fuel, ammunition & stores: 648 tons, 11.9 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 2.2

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is cramped


Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.04
Shellfire needed to sink: 4,309 lbs = 94.6 x 4.5 " shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.0
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 54 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.14
Relative quality as seaboat: 0.62

Hull form characteristics:
Block coefficient: 0.46
Sharpness coefficient: 0.36
Hull speed coefficient 'M': 6.55
'Natural speed' for length: 19.42 kts
Power going to wave formation at top speed: 70 %
Trim: 87
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 113.9 %
Relative accommodation and working space: 62.0 %
(Average = 100%)
Displacement factor: 137 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.61
(Structure weight per square foot of hull surface: 143 lbs)
Relative longitudinal hull strength: 4.05
(for 15.66 ft average freeboard, freeboard adjustment 2.25 ft)
Relative composite hull strength: 1.76