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Arabe Class Destroyer
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Arabe Class Destroyer, laid down 1917
     Length, 90.0 m x Beam, 8.5 m x Depth, 4.0 m
          1234 tonnes normal displacement (1140 tonnes standard)
     Main battery:       1 x 12.0-cm (1 x 1)
     Secondary battery:  4 x  7.5-cm
     AA battery:         2 x  4.5-cm
     Light battery:      6 x  1.3-cm
          Weight of broadside: 50 kg
     4 TT, 45.0 cm
     Hull unarmored
     Maximum speed for 22692 shaft kw = 32.00 knots
          Approximate cruising radius, 5000 nm / 10 knots
     Typical complement: 104-135

                    Estimated cost, $1.045 million (261,000)
          Remarks:
     Caution: Hull structure is subject to strain in open-sea
     conditions.
     Oil firing.
     Ship has slow, easy roll; a good, steady gun platform.
     Good seaboat; rides out heavy weather easily.
     Magazines and engineering spaces are cramped, with poor
     watertight subdivision.

          Distribution of weights:
                                                       Percent
                                                       normal
                                                    displacement:
          Armament .........................     14 tonnes =   1 pct
          Machinery ........................    667 tonnes =  54 pct
          Hull and fittings; equipment .....    325 tonnes =  26 pct
          Fuel, ammunition, stores .........    128 tonnes =  10 pct
          Miscellaneous weights ............    100 tonnes =   8 pct
                                              -----
                                               1234 tonnes = 100 pct
          Estimated metacentric height, 0.3 m
     Displacement summary:
          Light ship:              1106 tonnes
          Standard displacement:   1140 tonnes
          Normal service:          1234 tonnes
          Full load:               1304 tonnes
          Loading submergence 417 tonnes/metre
     +++++++++++++++++++++++++

     Estimated overall survivability and seakeeping ability:
          Relative margin of stability: 1.16
          Shellfire needed to sink: 119 kg = 5.0 x 12.0-cm shells
               (Approximates weight of penetrating
               shell hits needed to sink ship,
               not counting critical hits)
          Torpedoes needed to sink: 0.2
               (Approximates number of 'typical'
               torpedo hits needed to sink ship)
          Relative steadiness as gun platform, 71 percent
               (50 percent is 'average')
          Relative rocking effect from firing to beam, 0.45
          Relative quality as a seaboat: 1.28
     +++++++++++++++++++++++++

     Hull form characteristics:
          Block coefficient: 0.40
          Sharpness coefficient: 0.29
          Hull speed coefficient 'M' = 8.41
          'Natural speed' for length = 17.2 knots
          Power going to wave formation
               at top speed: 68 percent

     Estimated hull characteristics and strength:
          Relative underwater volume absorbed by
               magazines and engineering spaces: 192 percent
          Relative accommodation and working space: 92 percent

          Displacement factor: 51 percent
               (Displacement relative to loading factors)

          Relative cross-sectional hull strength: 0.50
               (Structure weight per square
               metre of hull surface: 155 kg)
          Relative longitudinal hull strength: 1.93
               (for 4.50 m average freeboard;
               freeboard adjustment +1.46 m)
          Relative composite hull strength: 0.57
     +++++++++++++++++++++++++

[Machine-readable parameters: Spring Style v. 1.2.1]
295.20 x 27.88 x 13.12; 14.76 -- Dimensions
0.40 -- Block coefficient
1917 -- Year laid down
32.00 / 5000 / 10.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
100 tons -- Miscellaneous weights
++++++++++
1 x 4.72; 1 -- Main battery; turrets
  Central positioning of guns
   :
4 x 2.95; 0 -- Secondary battery; turrets
   :
2 x 1.77 -- Tertiary (QF/AA) battery
   :
6 x 0.51 -- Fourth (light) battery
4 / 0 / 17.72 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.00 -- No battery armor

     (Note: For portability, values are stored in Anglo-American units)

     +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 


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