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Saved thread - this is tribal class DDs what do think off them blokes

Pengolodh_sc

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Thursday, May 15th 2003, 2:23am

Saved thread - this is tribal class DDs what do think off them blokes

17inc
Spammer wanna be
Posts: 24
(4/25/03 1:32:11 am)
this is tribal class DDs what do think off them blokes
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this is my tribal class DDs there will be ten start with to repalce my 1918 Adymiraity M class by the mid to late 1930s




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Tribal calss, Austrlian Destroyer laid down 1937

Displacement:
        2,026 t light; 2,096 t standard; 2,316 t normal; 2,483 t full load
        Loading submergence 282 tons/feet

Dimensions:
        355.50 ft x 37.50 ft x 9.50 ft (normal load)

Armament:
        8 - 4 " (102 mm) (4 Main turrets x 2 guns)
        10 - 1.5 " (38 mm) AA
        12 - 0.8 " (20 mm)
        Weight of broadside 276 lbs (125 kg)
        4 - 21 " above water torpedoes

Machinery:
        63,091 shp steam turbines, oil fired boilers = 34.00 kts, range 4,100nm at 15.00 kts

Complement:
        166 - 216

Cost:
        £1.572 million / $6.289 million

Distribution of weights at normal displacement:
        Armament: 34 tons, 1.5 %
        Machinery: 1,346 tons, 58.1 %
        Hull, fittings & equipment: 646 tons, 27.9 %
        Fuel, ammunition & stores: 289 tons, 12.5 %
        Miscellaneous weights: 0 tons, 0.0 %

        Metacentric height 1.5

Remarks:
        Caution: Hull subject to strain in open-sea
        Hull space for machinery, storage & compartmentation is cramped
        Room for accommodation & workspaces is excellent
        Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
        Relative margin of stability: 1.14
        Shellfire needed to sink: 595 lbs = 18.6 x 4.0 " shells
        (Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
        Torpedoes needed to sink: 0.3
        (Approx number of typical torpedo hits needed to sink ship)
        Relative steadiness as gun platform: 91 %
        (Average = 50 %)
        Relative rocking effect from firing to beam: 0.68
        Relative quality as seaboat: 1.18

Hull form characteristics:
        Block coefficient: 0.64
        Sharpness coefficient: 0.38
        Hull speed coefficient 'M': 8.21
        'Natural speed' for length: 18.85 kts
        Power going to wave formation at top speed: 73 %
        Trim: 77
        (Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
        Underwater volume absorbed by magazines and engineering spaces: 198.8 %
        Relative accommodation and working space: 198.0 %
        (Average = 100%)
        Displacement factor: 61 %
        (Displacement relative to loading factors)
        Relative cross-sectional hull strength: 0.45
        (Structure weight per square foot of hull surface: 36 lbs)
        Relative longitudinal hull strength: 1.76
        (for 22.00 ft average freeboard, freeboard adjustment 10.70 ft)
        Relative composite hull strength: 0.52


The Rock Doctor
Spammer wanna be
Posts: 50
(4/25/03 11:52:13 am)
Questionnes
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-Are two turrets superfiring?

-Why no gun shields?

-Are you satisfied with the range of 4100 nm? It seems a little short to me.

-Steadiness and freeboard seem rather high; cutting back on them might increase the amount of damage the ship can suck up.