GB/DL/1906, Great Britain Destroyer Leader laid down 1906 (Engine 1917)
Displacement:
1,023 t light; 1,054 t standard; 1,200 t normal; 1,317 t full load
Dimensions: Length overall / water x beam x draught
326.77 ft / 326.00 ft x 30.00 ft x 9.00 ft (normal load)
99.60 m / 99.36 m x 9.14 m x 2.74 m
Armament:
4 - 3.46" / 88.0 mm guns in single mounts, 20.00lbs / 9.07kg shells, 1906 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
Weight of broadside 80 lbs / 36 kg
Shells per gun, main battery: 150
2 - 21.0" / 533.4 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 29,369 shp / 21,909 Kw = 32.00 kts
Range 3,200nm at 15.00 kts
Bunker at max displacement = 263 tons
Complement:
101 - 132
Cost:
£0.138 million / $0.554 million
Distribution of weights at normal displacement:
Armament: 10 tons, 0.9 %
Machinery: 671 tons, 55.9 %
Hull, fittings & equipment: 342 tons, 28.5 %
Fuel, ammunition & stores: 177 tons, 14.7 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
330 lbs / 150 Kg = 15.9 x 3.5 " / 88 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.51
Metacentric height 1.7 ft / 0.5 m
Roll period: 9.8 seconds
Steadiness - As gun platform (Average = 50 %): 57 %
- Recoil effect (Restricted arc if above 1.00): 0.18
Seaboat quality (Average = 1.00): 1.15
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.477
Length to Beam Ratio: 10.87 : 1
'Natural speed' for length: 18.06 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 2.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (28 %): 20.00 ft / 6.10 m (12.00 ft / 3.66 m aft of break)
- Quarterdeck (15 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 14.40 ft / 4.39 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 187.0 %
- Above water (accommodation/working, high = better): 134.3 %
Waterplane Area: 6,384 Square feet or 593 Square metres
Displacement factor (Displacement / loading): 54 %
Structure weight / hull surface area: 26 lbs/sq ft or 127 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.45
- Longitudinal: 1.93
- Overall: 0.53
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
This is a forum for discussion of topics relating to the Dreadnought era, prior to the ascendency of naval aviation. We will be discussing history, ship design, and naval wargaming.
Friday, July 22, 2005
The GB/DL/1906 redesigned
My friend Cliff's design for a large destroyer or destroyer leader armed with 88mm guns and having a speed of 32 knots works quite nicely, now that I understand better how to use Springsharp. I had originally expected to have to use a much later date for the machinery, and found that wasn't necessary. The dimensions, displacement, armament, and speed are what were originally planned. This is the Springsharp report:
No comments:
Post a Comment