WesWorld

Charybdis , laid down 1938
Hydra , laid down 1938

Displacement:
7.993 t light; 8.379 t standard; 9.726 t normal; 10.804 t full load

Dimensions: Length overall / water x beam x draught
557,75 ft / 547,90 ft x 60,70 ft x 19,69 ft (normal load)
170,00 m / 167,00 m x 18,50 m x 6,00 m

Armament:
12 - 5,91" / 150 mm guns (4x3 guns), 110,23lbs / 50,00kg shells, 1938 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 4,13" / 105 mm guns (4x2 guns), 35,32lbs / 16,02kg shells, 1938 Model
Dual purpose guns in deck mounts
on side, all amidships
12 - 1,57" / 40,0 mm guns (4x3 guns), 1,95lbs / 0,88kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0,79" / 20,0 mm guns (2x6 guns), 0,24lbs / 0,11kg shells, 1938 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,24lbs / 0,11kg shells, 1938 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1.634 lbs / 741 kg
Shells per gun, main battery: 200
12 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,13" / 105 mm 321,85 ft / 98,10 m 9,84 ft / 3,00 m
Ends: Unarmoured
Main Belt covers 90% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,72" / 120 mm 2,36" / 60 mm 4,72" / 120 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -
5th: 0,39" / 10 mm - -

- Armour deck: 1,77" / 45 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 80.429 shp / 60.000 Kw = 32,53 kts
Range 12.300nm at 15,00 kts
Bunker at max displacement = 2.425 tons

Complement:
489 - 636

Cost:
£4,230 million / $16,920 million

Distribution of weights at normal displacement:
Armament: 193 tons, 2,0%
Armour: 1.744 tons, 17,9%
- Belts: 560 tons, 5,8%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 415 tons, 4,3%
- Armour Deck: 770 tons, 7,9%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.202 tons, 22,6%
Hull, fittings & equipment: 3.828 tons, 39,4%
Fuel, ammunition & stores: 1.733 tons, 17,8%
Miscellaneous weights: 25 tons, 0,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13.415 lbs / 6.085 Kg = 130,3 x 5,9 " / 150 mm shells or 1,8 torpedoes
Stability (Unstable if below 1.00): 1,04
Metacentric height 2,6 ft / 0,8 m
Roll period: 15,9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,55
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,520
Length to Beam Ratio: 9,03 : 1
'Natural speed' for length: 26,87 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27,07 ft / 8,25 m
- Forecastle (25%): 22,64 ft / 6,90 m
- Mid (73%): 22,64 ft / 6,90 m (14,76 ft / 4,50 m aft of break)
- Quarterdeck (15%): 14,76 ft / 4,50 m
- Stern: 14,76 ft / 4,50 m
- Average freeboard: 20,95 ft / 6,39 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90,3%
- Above water (accommodation/working, high = better): 144,8%
Waterplane Area: 23.479 Square feet or 2.181 Square metres
Displacement factor (Displacement / loading): 126%
Structure weight / hull surface area: 103 lbs/sq ft or 505 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,94
- Longitudinal: 1,68
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Soweto, laid down 1943

Displacement:
8.450 t light; 8.889 t standard; 10.288 t normal; 11.407 t full load

Dimensions: Length overall / water x beam x draught
575,05 ft / 564,30 ft x 62,34 ft x 19,69 ft (normal load)
175,28 m / 172,00 m x 19,00 m x 6,00 m

Armament:
12 - 5,91" / 150 mm guns (4x3 guns), 110,23lbs / 50,00kg shells, 1943 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 2,95" / 75,0 mm guns (10x2 guns), 12,87lbs / 5,84kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
12 - 0,79" / 20,0 mm guns (2x6 guns), 0,24lbs / 0,11kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1.587 lbs / 720 kg
Shells per gun, main battery: 250

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,35" / 85 mm 308,40 ft / 94,00 m 10,83 ft / 3,30 m
Ends: Unarmoured
Main Belt covers 84% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,72" / 120 mm 2,36" / 60 mm 4,72" / 120 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm 0,98" / 25 mm
3rd: 0,39" / 10 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 2,36" / 60 mm, Conning tower: 0,79" / 20 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 80.000 shp / 59.680 Kw = 32,29 kts
Range 6.600nm at 20,00 kts
Bunker at max displacement = 2.517 tons

Complement:
509 - 663

Cost:
£4,895 million / $19,582 million

Distribution of weights at normal displacement:
Armament: 194 tons, 1,9%
Armour: 2.027 tons, 19,7%
- Belts: 484 tons, 4,7%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 449 tons, 4,4%
- Armour Deck: 1.085 tons, 10,5%
- Conning Tower: 8 tons, 0,1%
Machinery: 2.066 tons, 20,1%
Hull, fittings & equipment: 4.013 tons, 39,0%
Fuel, ammunition & stores: 1.838 tons, 17,9%
Miscellaneous weights: 150 tons, 1,5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
16.038 lbs / 7.275 Kg = 155,7 x 5,9 " / 150 mm shells or 2,0 torpedoes
Stability (Unstable if below 1.00): 1,17
Metacentric height 3,3 ft / 1,0 m
Roll period: 14,4 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0,38
Seaboat quality (Average = 1.00): 1,04

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0,520
Length to Beam Ratio: 9,05 : 1
'Natural speed' for length: 27,26 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29,53 ft / 9,00 m
- Forecastle (25%): 20,34 ft / 6,20 m
- Mid (50%): 20,34 ft / 6,20 m
- Quarterdeck (15%): 20,34 ft / 6,20 m
- Stern: 20,34 ft / 6,20 m
- Average freeboard: 21,26 ft / 6,48 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83,0%
- Above water (accommodation/working, high = better): 189,1%
Waterplane Area: 24.836 Square feet or 2.307 Square metres
Displacement factor (Displacement / loading): 131%
Structure weight / hull surface area: 104 lbs/sq ft or 507 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,58
- Overall: 1,00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

Archer, laid down 1943



Displacement:
5.257 t light; 5.590 t standard; 6.364 t normal; 6.984 t full load

Dimensions: Length overall / water x beam x draught
489,30 ft / 478,35 ft x 47,90 ft x 19,06 ft (normal load)
149,14 m / 145,80 m x 14,60 m x 5,81 m

Armament:
6 - 5,91" / 150 mm guns (2x3 guns), 110,23lbs / 50,00kg shells, 1943 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
2 - 8,2" / 210 mm rockets (2x20 tubes), 1943 Model
Turnable launchers in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
8 - 4,53" / 115 mm guns (4x2 guns), 50,71lbs / 23,00kg shells, 1943 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
12 - 1,57" / 40,0 mm guns (4 mounts), 1,95lbs / 0,88kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 8 raised guns
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,24lbs / 0,11kg shells, 1943 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1.092 lbs / 495 kg (without rockets)
Shells per gun, main battery: 230

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,38" / 35 mm 347,77 ft / 106,00 m 9,84 ft / 3,00 m
Ends: Unarmoured
Main Belt covers 112% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3,15" / 80 mm 1,57" / 40 mm 3,15" / 80 mm
2nd: 0,79" / 20 mm 0,79" / 20 mm 1,97" / 50 mm
3rd: 0,98" / 25 mm 0,79" / 20 mm 1,18" / 30 mm
4th: 0,59" / 15 mm - -
5th: 0,39" / 10 mm - -

- Armour deck: 1,18" / 30 mm, Conning tower: 0,79" / 20 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 61.663 shp / 46.000 Kw = 32,15 kts
Range 6.200nm at 18,00 kts
Bunker at max displacement = 1.394 tons

Complement:
356 - 463

Cost:
£3,606 million / $14,422 million

Distribution of weights at normal displacement:
Armament: 171 tons, 2,7%
Armour: 702 tons, 11,0%
- Belts: 193 tons, 3,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 153 tons, 2,4%
- Armour Deck: 350 tons, 5,5%
- Conning Tower: 6 tons, 0,1%
Machinery: 1.593 tons, 25,0%
Hull, fittings & equipment: 2.642 tons, 41,5%
Fuel, ammunition & stores: 1.107 tons, 17,4%
Miscellaneous weights: 150 tons, 2,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6.831 lbs / 3.099 Kg = 66,3 x 5,9 " / 150 mm shells or 1,1 torpedoes
Stability (Unstable if below 1.00): 1,11
Metacentric height 2,0 ft / 0,6 m
Roll period: 14,1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0,81
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,510
Length to Beam Ratio: 9,99 : 1
'Natural speed' for length: 24,93 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 1,64 ft / 0,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25,59 ft / 7,80 m
- Forecastle (20%): 21,82 ft / 6,65 m
- Mid (55%): 21,82 ft / 6,65 m (13,94 ft / 4,25 m aft of break)
- Quarterdeck (15%): 13,94 ft / 4,25 m
- Stern: 13,94 ft / 4,25 m
- Average freeboard: 18,58 ft / 5,66 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 106,3%
- Above water (accommodation/working, high = better): 155,9%
Waterplane Area: 16.025 Square feet or 1.489 Square metres
Displacement factor (Displacement / loading): 118%
Structure weight / hull surface area: 93 lbs/sq ft or 452 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,25
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

CLX RSAN Archer is an experimental design to test SERPA (seaborne rocket propelled artillery).
Rocket launchers simmed as 18cm guns in single deck mounts with hoists and 80,72kg shells (standard by SS2).
Weight per 18cm gun/mount is 22 tons without armor as per SS2.
Broadside weight modified by taking out both guns.