You are not logged in.

Dear visitor, welcome to WesWorld. If this is your first visit here, please read the Help. It explains in detail how this page works. To use all features of this page, you should consider registering. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.

1

Wednesday, December 16th 2009, 12:06am

Siamese CLAA Drawing Request

Hey folks, recently I posted the following 2 designs, and it appears that many were skeptical about me trying to fit a seemingly high amount of 100mm secondaries. As I don't really possess the time/expertise to draw up some drawings to show people that what I put down in my SS designs can be safely fitted, I'd like to make a general request to anyone who's willing to draw them. The two designs are generally very similiar, one at 6000 t and the other scaled up to 10000 t. They are both meant to provide excellent AA fire coverage for the fleet while still possessing reasonalbe AS capabilities. Don't mind if you only have time to draw up one of them, as I really just want to show that my design in SS is realistic and practical enough.

Below are the two designs. I should also mention that no seaplanes are included in the designs. That should free up some space for the guns.


Bangkok, Siam Light Cruiser laid down 1938

Displacement:
5,618 t light; 6,000 t standard; 6,974 t normal; 7,754 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(543.37 ft / 524.93 ft) x 52.49 ft x (19.69 / 21.18 ft)
(165.62 m / 160.00 m) x 16.00 m x (6.00 / 6.46 m)

Armament:
6 - 5.91" / 150 mm 60.0 cal guns - 110.23lbs / 50.00kg shells, 200 per gun
Dual purpose guns in turret on barbette mounts, 1938 Model
2 x Twin mounts on centreline, forward deck forward
1 raised mount - superfiring
1 x Twin mount on centreline, aft deck aft
12 - 3.94" / 100.0 mm 65.0 cal guns - 33.07lbs / 15.00kg shells, 400 per gun
Dual purpose guns in deck and hoist mounts, 1938 Model
6 x Twin mounts on sides, evenly spread
2 raised mounts
12 - 2.17" / 55.0 mm 55.0 cal guns - 5.51lbs / 2.50kg shells, 2,000 per gun
Anti-air guns in deck mounts, 1938 Model
4 x Twin mounts on sides, evenly spread
2 x Twin mounts on centreline ends, evenly spread
2 raised mounts
12 - 0.98" / 25.0 mm 75.0 cal guns - 0.55lbs / 0.25kg shells, 2,000 per gun
Anti-air guns in deck mounts, 1938 Model
6 x Twin mounts on centreline, evenly spread
6 raised mounts
Weight of broadside 1,131 lbs / 513 kg
Main Torpedoes
8 - 23.6" / 600 mm, 29.53 ft / 9.00 m torpedoes - 2.402 t each, 19.214 t total
In 2 sets of deck mounted carriage/fixed tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.95" / 75 mm 344.49 ft / 105.00 m 8.20 ft / 2.50 m
Ends: Unarmoured
Main Belt covers 101% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.95" / 75 mm 1.97" / 50 mm 2.95" / 75 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm 0.98" / 25 mm
3rd: 0.79" / 20 mm - -
4th: 0.39" / 10 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 1.97" / 50 mm
Forecastle: 0.98" / 25 mm Quarter deck: 0.98" / 25 mm

- Conning towers: Forward 2.95" / 75 mm, Aft 0.98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 59,735 shp / 44,562 Kw = 32.00 kts
Range 9,350nm at 15.00 kts
Bunker at max displacement = 1,754 tons

Complement:
381 - 496

Cost:
£3.230 million / $12.921 million

Distribution of weights at normal displacement:
Armament: 398 tons, 5.7%
- Guns: 374 tons, 5.4%
- Weapons: 24 tons, 0.3%
Armour: 1,174 tons, 16.8%
- Belts: 342 tons, 4.9%
- Armament: 193 tons, 2.8%
- Armour Deck: 608 tons, 8.7%
- Conning Towers: 31 tons, 0.4%
Machinery: 1,636 tons, 23.5%
Hull, fittings & equipment: 2,311 tons, 33.1%
Fuel, ammunition & stores: 1,356 tons, 19.4%
Miscellaneous weights: 100 tons, 1.4%
- On freeboard deck: 50 tons
- Above deck: 50 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,719 lbs / 3,501 Kg = 75.0 x 5.9 " / 150 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.4 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.08

Hull form characteristics:
Hull has a flush deck,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.450 / 0.465
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 26.31 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: 3.28 ft / 1.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00%, 26.25 ft / 8.00 m, 19.69 ft / 6.00 m
- Forward deck: 30.00%, 19.69 ft / 6.00 m, 16.40 ft / 5.00 m
- Aft deck: 35.00%, 16.40 ft / 5.00 m, 16.40 ft / 5.00 m
- Quarter deck: 15.00%, 16.40 ft / 5.00 m, 16.40 ft / 5.00 m
- Average freeboard: 18.08 ft / 5.51 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 97.8%
- Above water (accommodation/working, high = better): 152.7%
Waterplane Area: 18,258 Square feet or 1,696 Square metres
Displacement factor (Displacement / loading): 117%
Structure weight / hull surface area: 83 lbs/sq ft or 405 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 1.49
- Overall: 0.90
Caution: Hull subject to strain in open-sea
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room


Here's the big brother:


Bangkok, Siam Light Cruiser laid down 1938

Displacement:
9,424 t light; 10,000 t standard; 11,624 t normal; 12,923 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(674.10 ft / 656.17 ft) x 65.62 ft x (21.00 / 22.59 ft)
(205.47 m / 200.00 m) x 20.00 m x (6.40 / 6.89 m)

Armament:
10 - 5.91" / 150 mm 60.0 cal guns - 110.23lbs / 50.00kg shells, 200 per gun
Dual purpose guns in turret on barbette mounts, 1938 Model
3 x Twin mounts on centreline, forward deck forward
1 raised mount - superfiring
2 x Twin mounts on centreline, aft deck aft
1 raised mount aft - superfiring
20 - 3.94" / 100.0 mm 65.0 cal guns - 33.07lbs / 15.00kg shells, 400 per gun
Dual purpose guns in deck and hoist mounts, 1938 Model
10 x Twin mounts on sides, evenly spread
4 raised mounts
20 - 2.17" / 55.0 mm 55.0 cal guns - 5.51lbs / 2.50kg shells, 1,000 per gun
Anti-air guns in deck mounts, 1938 Model
6 x Twin mounts on sides, evenly spread
4 x Twin mounts on centreline, evenly spread
4 raised mounts
20 - 0.98" / 25.0 mm 75.0 cal guns - 0.55lbs / 0.25kg shells, 2,000 per gun
Anti-air guns in deck mounts, 1938 Model
6 x Twin mounts on sides, evenly spread
4 x Twin mounts on centreline, evenly spread
4 raised mounts
Weight of broadside 1,885 lbs / 855 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.92" / 125 mm 426.51 ft / 130.00 m 10.50 ft / 3.20 m
Ends: Unarmoured
Main Belt covers 100% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.91" / 150 mm 2.95" / 75 mm 3.94" / 100 mm
2nd: 1.97" / 50 mm 0.98" / 25 mm -
3rd: 0.79" / 20 mm - -
4th: 0.39" / 10 mm - -

- Armoured deck - single deck:
For and Aft decks: 1.97" / 50 mm

- Conning towers: Forward 5.91" / 150 mm, Aft 1.97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 76,157 shp / 56,813 Kw = 32.00 kts
Range 11,590nm at 15.00 kts
Bunker at max displacement = 2,923 tons

Complement:
559 - 727

Cost:
£4.890 million / $19.561 million

Distribution of weights at normal displacement:
Armament: 623 tons, 5.4%
- Guns: 623 tons, 5.4%
Armour: 2,242 tons, 19.3%
- Belts: 903 tons, 7.8%
- Armament: 447 tons, 3.8%
- Armour Deck: 804 tons, 6.9%
- Conning Towers: 87 tons, 0.7%
Machinery: 2,085 tons, 17.9%
Hull, fittings & equipment: 4,374 tons, 37.6%
Fuel, ammunition & stores: 2,199 tons, 18.9%
Miscellaneous weights: 100 tons, 0.9%
- On freeboard deck: 50 tons
- Above deck: 50 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
17,631 lbs / 7,997 Kg = 171.2 x 5.9 " / 150 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 3.1 ft / 0.9 m
Roll period: 15.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.43
Seaboat quality (Average = 1.00): 1.26

Hull form characteristics:
Hull has a flush deck,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.450 / 0.465
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 29.42 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00%, 28.22 ft / 8.60 m, 22.97 ft / 7.00 m
- Forward deck: 30.00%, 22.97 ft / 7.00 m, 17.72 ft / 5.40 m
- Aft deck: 30.00%, 17.72 ft / 5.40 m, 17.72 ft / 5.40 m
- Quarter deck: 20.00%, 17.72 ft / 5.40 m, 17.72 ft / 5.40 m
- Average freeboard: 19.97 ft / 6.09 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.7%
- Above water (accommodation/working, high = better): 185.0%
Waterplane Area: 28,529 Square feet or 2,650 Square metres
Displacement factor (Displacement / loading): 131%
Structure weight / hull surface area: 108 lbs/sq ft or 527 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.23
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily