这个“小东西”是否有存在的必要？

<P>XXX, ？？？ Battleship Cruiser laid down 1941</P>
<P>Displacement:
22,905 t light; 24,155 t standard; 25,855 t normal; 27,215 t full load</P>
<P>Dimensions: Length overall / water x beam x draught
627.19 ft / 606.96 ft x 88.58 ft x 29.53 ft (normal load)
191.17 m / 185.00 m x 27.00 m  x 9.00 m</P>
<P>Armament:
      9 - 12.01" / 305 mm guns (3x3 guns), 865.70lbs / 392.67kg shells, 1941 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 5.12" / 130 mm guns (6x2 guns), 67.03lbs / 30.40kg shells, 1941 Model
   Dual purpose guns in turrets (on barbettes)
   on side, evenly spread
      12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1941 Model
   Anti-aircraft guns in deck mounts
   on side, evenly spread
      10 - 0.79" / 20.0 mm guns (5x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
   Anti-aircraft guns in deck mounts
   on side, evenly spread
      20 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1941 Model
   Machine guns in deck mounts
   on side, evenly spread
Weight of broadside 8,618 lbs / 3,909 kg
Shells per gun, main battery: 150</P>
<P>Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
Main: 11.0" / 280 mm 375.39 ft / 114.42 m 11.29 ft / 3.44 m
Ends: 3.94" / 100 mm 205.84 ft / 62.74 m 11.29 ft / 3.44 m
   25.72 ft / 7.84 m Unarmoured ends
Upper: 4.72" / 120 mm 375.39 ft / 114.42 m 8.01 ft / 2.44 m
   Main Belt covers 95% of normal length</P>
<P>   - Torpedo Bulkhead:
  0.79" / 20 mm 375.39 ft / 114.42 m 27.10 ft / 8.26 m</P>
<P>   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.8" / 300 mm 3.94" / 100 mm  10.8" / 275 mm
2nd: 3.54" / 90 mm 0.98" / 25 mm  3.15" / 80 mm</P>
<P>   - Armour deck: 4.72" / 120 mm, Conning tower: 11.81" / 300 mm</P>
<P>Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 95,279 shp / 71,078 Kw = 28.00 kts
Range 6,000nm at 17.00 kts
Bunker at max displacement = 3,060 tons</P>
<P>Complement:
1,019 - 1,325</P>
<P>Cost:
&pound;12.729 million / $50.915 million</P>
<P>Distribution of weights at normal displacement:
Armament: 1,077 tons, 4.2%
Armour: 8,915 tons, 34.5%
    - Belts: 3,007 tons, 11.6%
    - Torpedo bulkhead: 296 tons, 1.1%
    - Armament: 2,047 tons, 7.9%
    - Armour Deck: 3,342 tons, 12.9%
    - Conning Tower: 222 tons, 0.9%
Machinery: 2,518 tons, 9.7%
Hull, fittings &amp; equipment: 10,335 tons, 40.0%
Fuel, ammunition &amp; stores: 2,950 tons, 11.4%
Miscellaneous weights: 60 tons, 0.2%</P>
<P>Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
   40,672 lbs / 18,448 Kg = 47.0 x 12.0 " / 305 mm shells or 6.0 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 4.6 ft / 1.4 m
Roll period: 17.3 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
   - Recoil effect (Restricted arc if above 1.00): 0.65
Seaboat quality  (Average = 1.00): 1.07</P>
<P>Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.570
Length to Beam Rati 6.85 : 1
'Natural speed' for length: 24.64 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.09 ft / 1.55 m
Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  26.25 ft / 8.00 m
    - Forecastle (20%): 24.61 ft / 7.50 m
    - Mid (50%):  22.97 ft / 7.00 m
    - Quarterdeck (15%): 16.40 ft / 5.00 m (22.97 ft / 7.00 m before break)
    - Stern:  16.40 ft / 5.00 m
    - Average freeboard: 22.69 ft / 6.92 m
Ship tends to be wet forward</P>
<P>Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.7%
  - Above water (accommodation/working, high = better): 166.8%
Waterplane Area: 38,233 Square feet or 3,552 Square metres
Displacement factor (Displacement / loading): 114%
Structure weight / hull surface area: 182 lbs/sq ft or 891 Kg/sq metre
Hull strength (Relative):
  - Cross-sectional: 1.02
  - Longitudinal: 1.97
  - Overall: 1.09
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent</P><P>XXX, ？？？ Battleship Cruiser laid down 1941</P>
<P>Displacement:
22,905 t light; 24,155 t standard; 25,855 t normal; 27,215 t full load</P>
<P>Dimensions: Length overall / water x beam x draught
627.19 ft / 606.96 ft x 88.58 ft x 29.53 ft (normal load)
191.17 m / 185.00 m x 27.00 m  x 9.00 m</P>
<P>Armament:
      9 - 12.01" / 305 mm guns (3x3 guns), 865.70lbs / 392.67kg shells, 1941 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 5.12" / 130 mm guns (6x2 guns), 67.03lbs / 30.40kg shells, 1941 Model
   Dual purpose guns in turrets (on barbettes)
   on side, evenly spread
      12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1941 Model
   Anti-aircraft guns in deck mounts
   on side, evenly spread
      10 - 0.79" / 20.0 mm guns (5x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
   Anti-aircraft guns in deck mounts
   on side, evenly spread
      20 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1941 Model
   Machine guns in deck mounts
   on side, evenly spread
Weight of broadside 8,618 lbs / 3,909 kg
Shells per gun, main battery: 150</P>
<P>Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
Main: 11.0" / 280 mm 375.39 ft / 114.42 m 11.29 ft / 3.44 m
Ends: 3.94" / 100 mm 205.84 ft / 62.74 m 11.29 ft / 3.44 m
   25.72 ft / 7.84 m Unarmoured ends
Upper: 4.72" / 120 mm 375.39 ft / 114.42 m 8.01 ft / 2.44 m
   Main Belt covers 95% of normal length</P>
<P>   - Torpedo Bulkhead:
  0.79" / 20 mm 375.39 ft / 114.42 m 27.10 ft / 8.26 m</P>
<P>   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.8" / 300 mm 3.94" / 100 mm  10.8" / 275 mm
2nd: 3.54" / 90 mm 0.98" / 25 mm  3.15" / 80 mm</P>
<P>   - Armour deck: 4.72" / 120 mm, Conning tower: 11.81" / 300 mm</P>
<P>Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 95,279 shp / 71,078 Kw = 28.00 kts
Range 6,000nm at 17.00 kts
Bunker at max displacement = 3,060 tons</P>
<P>Complement:
1,019 - 1,325</P>
<P>Cost:
&pound;12.729 million / $50.915 million</P>
<P>Distribution of weights at normal displacement:
Armament: 1,077 tons, 4.2%
Armour: 8,915 tons, 34.5%
    - Belts: 3,007 tons, 11.6%
    - Torpedo bulkhead: 296 tons, 1.1%
    - Armament: 2,047 tons, 7.9%
    - Armour Deck: 3,342 tons, 12.9%
    - Conning Tower: 222 tons, 0.9%
Machinery: 2,518 tons, 9.7%
Hull, fittings &amp; equipment: 10,335 tons, 40.0%
Fuel, ammunition &amp; stores: 2,950 tons, 11.4%
Miscellaneous weights: 60 tons, 0.2%</P>
<P>Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
   40,672 lbs / 18,448 Kg = 47.0 x 12.0 " / 305 mm shells or 6.0 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 4.6 ft / 1.4 m
Roll period: 17.3 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
   - Recoil effect (Restricted arc if above 1.00): 0.65
Seaboat quality  (Average = 1.00): 1.07</P>
<P>Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.570
Length to Beam Rati 6.85 : 1
'Natural speed' for length: 24.64 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 5.09 ft / 1.55 m
Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  26.25 ft / 8.00 m
    - Forecastle (20%): 24.61 ft / 7.50 m
    - Mid (50%):  22.97 ft / 7.00 m
    - Quarterdeck (15%): 16.40 ft / 5.00 m (22.97 ft / 7.00 m before break)
    - Stern:  16.40 ft / 5.00 m
    - Average freeboard: 22.69 ft / 6.92 m
Ship tends to be wet forward</P>
<P>Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.7%
  - Above water (accommodation/working, high = better): 166.8%
Waterplane Area: 38,233 Square feet or 3,552 Square metres
Displacement factor (Displacement / loading): 114%
Structure weight / hull surface area: 182 lbs/sq ft or 891 Kg/sq metre
Hull strength (Relative):
  - Cross-sectional: 1.02
  - Longitudinal: 1.97
  - Overall: 1.09
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent</P>