Quoted
Originally posted by HoOmAn
I´m curious to see how you managed all that on 2000 tons. I expect a design not in line with our rules here but probably you can suprise me. :o)
This post has been edited 1 times, last edit by "Eidolon" (Sep 30th 2009, 4:52pm)
Quoted
DBL39 class, Large Destroyer Leader laid down 1939
Displacement:
1,864 t light; 2,009 t standard; 2,982 t normal; 3,759 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(416.00 ft / 410.00 ft) x 42.00 ft x (15.00 / 17.47 ft)
(126.80 m / 124.97 m) x 12.80 m x (4.57 / 5.32 m)
Armament:
6 - 5.00" / 127 mm 38.0 cal guns - 59.33lbs / 26.91kg shells, 320 per gun
Dual purpose guns in deck and hoist mounts, 1939 Model
3 x Twin mounts on centreline ends, majority aft
1 raised mount aft - superfiring
12 - 1.57" / 40.0 mm 56.0 cal guns - 2.12lbs / 0.96kg shells, 1,500 per gun
Anti-air guns in deck mounts, 1939 Model
4 x Triple mounts on sides, forward deck aft
4 raised mounts
8 - 0.50" / 12.7 mm 62.0 cal guns - 0.07lbs / 0.03kg shells, 2,500 per gun
Machine guns in deck mounts, 1939 Model
4 x Twin mounts on sides, evenly spread
4 raised mounts
Weight of broadside 382 lbs / 173 kg
Main Torpedoes
10 - 21.0" / 533 mm, 24.00 ft / 7.32 m torpedoes - 1.615 t each, 16.155 t total
In 2 sets of deck mounted centre rotating tubes
Main DC/AS Mortars
24 - 65.00 lbs / 29.48 kg ahead throwing AS Mortars + 6 reloads - 0.871 t total
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm -
2nd: 1.57" / 40 mm - -
3rd: 0.50" / 13 mm - -
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 33,259 shp / 24,811 Kw = 31.00 kts
Range 8,550nm at 20.00 kts
Bunker at max displacement = 1,750 tons
Complement:
201 - 262
Cost:
£1.292 million / $5.168 million
Distribution of weights at normal displacement:
Armament: 110 tons, 3.7 %
- Guns: 76 tons, 2.6 %
- Weapons: 34 tons, 1.1 %
Armour: 32 tons, 1.1 %
- Armament: 32 tons, 1.1 %
Machinery: 900 tons, 30.2 %
Hull, fittings & equipment: 783 tons, 26.3 %
Fuel, ammunition & stores: 1,117 tons, 37.5 %
Miscellaneous weights: 40 tons, 1.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,379 lbs / 1,079 Kg = 38.1 x 5.0 " / 127 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.42
Metacentric height 2.5 ft / 0.8 m
Roll period: 11.2 seconds
Steadiness - As gun platform (Average = 50 %): 77 %
- Recoil effect (Restricted arc if above 1.00): 0.37
Seaboat quality (Average = 1.00): 1.54
Hull form characteristics:
Hull has a flush deck,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.404 / 0.437
Length to Beam Ratio: 9.76 : 1
'Natural speed' for length: 23.45 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 15.25 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 16.00 %, 22.00 ft / 6.71 m, 20.00 ft / 6.10 m
- Forward deck: 30.00 %, 20.00 ft / 6.10 m, 18.00 ft / 5.49 m
- Aft deck: 42.00 %, 18.00 ft / 5.49 m, 15.00 ft / 4.57 m
- Quarter deck: 12.00 %, 15.00 ft / 4.57 m, 14.00 ft / 4.27 m
- Average freeboard: 17.70 ft / 5.39 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 109.9 %
- Above water (accommodation/working, high = better): 146.6 %
Waterplane Area: 11,027 Square feet or 1,024 Square metres
Displacement factor (Displacement / loading): 138 %
Structure weight / hull surface area: 39 lbs/sq ft or 192 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.84
- Overall: 0.57
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Miscellaneous weight reserved as torpedo reloads and growth potential.
Quoted
Originally posted by Eidolon
Quick question: are the rules based on standard tonnage or normal? I assumed standard, but thought I should double check.
Quoted
Originally posted by HoOmAn
For a ´39er design she is rather heavily armed. Have you tried a deck plan to see if you can find enough deckspace for all those guns? Those large TT tubes eat up a lot of room and you have quite some AA mounts to place too. Add (two?) funnels, boats, searchlights, masts, bridge and enough room for her crew....
Forum Software: Burning Board® Lite 2.1.2 pl 1, developed by WoltLab® GmbH