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Quoted
Ark Royal Class, Great Britain Aircraft Carrier laid down 1932
Displacement:
21,240 t light; 22,008 t standard; 24,803 t normal; 27,039 t full load
Dimensions: Length overall / water x beam x draught
691.38 ft / 685.00 ft x 94.75 ft x 27.75 ft (normal load)
210.73 m / 208.79 m x 28.88 m x 8.46 m
Armament:
16 - 4.50" / 114 mm guns (8x2 guns), 45.00lbs / 20.41kg shells, 1945 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
36 - 1.57" / 40.0 mm guns (6x6 guns), 2.00lbs / 0.91kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread
16 - 1.57" / 40.0 mm guns in single mounts, 2.00lbs / 0.91kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 824 lbs / 374 kg
Shells per gun, main battery: 550
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 485.00 ft / 147.83 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 109 % of normal length
- Torpedo Bulkhead:
1.00" / 25 mm 485.00 ft / 147.83 m 26.00 ft / 7.92 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.00" / 25 mm 1.00" / 25 mm -
3rd: 0.50" / 13 mm 0.50" / 13 mm -
- Armour deck: 3.00" / 76 mm, Conning tower: 5.00" / 127 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 122,009 shp / 91,019 Kw = 32.00 kts
Range 12,000nm at 16.00 kts
Bunker at max displacement = 5,031 tons
Complement:
987 - 1,284
Cost:
£6.067 million / $24.269 million
Distribution of weights at normal displacement:
Armament: 104 tons, 0.4 %
Armour: 4,082 tons, 16.5 %
- Belts: 980 tons, 3.9 %
- Torpedo bulkhead: 467 tons, 1.9 %
- Armament: 90 tons, 0.4 %
- Armour Deck: 2,455 tons, 9.9 %
- Conning Tower: 92 tons, 0.4 %
Machinery: 3,601 tons, 14.5 %
Hull, fittings & equipment: 7,553 tons, 30.5 %
Fuel, ammunition & stores: 3,563 tons, 14.4 %
Miscellaneous weights: 5,900 tons, 23.8 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
36,313 lbs / 16,471 Kg = 797.0 x 4.5 " / 114 mm shells or 5.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 5.5 ft / 1.7 m
Roll period: 16.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.05
Seaboat quality (Average = 1.00): 1.22
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.482
Length to Beam Ratio: 7.23 : 1
'Natural speed' for length: 30.77 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (20 %): 24.00 ft / 7.32 m
- Mid (25 %): 23.00 ft / 7.01 m
- Quarterdeck (15 %): 23.00 ft / 7.01 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 23.78 ft / 7.25 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 98.6 %
- Above water (accommodation/working, high = better): 196.7 %
Waterplane Area: 44,230 Square feet or 4,109 Square metres
Displacement factor (Displacement / loading): 138 %
Structure weight / hull surface area: 121 lbs/sq ft or 588 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.45
- 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
Good seaboat, rides out heavy weather easily
25% refit changes
4.7in replaced by 4.5in
Octuple 2pdr replaced by sextuple 2pdr
HMG mounts replaced by 2pdr singles
New BAH Mk.II steam catapults (115ft long) fitted
New AIO installed in hull linked to revised bridges
Four new Close Range Blind Firing (CRBF) directors with Type 298 RDF
Two new Gunnery Director Type 288 with Tallboy console
Addition of electrical equipment; one Type 971 aerial search, one Type 276 high definiition surface search, two Type 972 height-finding, one Type 295Q VHF Direction Finder, Passive Radio Intercept Type 293 series and Passive Radio-Location Intercept Type 294 series
Quoted
Carriers Q & R, Great Britain Aircraft Carrier laid down 1947
Displacement:
35,868 t light; 36,923 t standard; 40,313 t normal; 43,026 t full load
Dimensions: Length overall / water x beam x draught
896.02 ft / 850.00 ft x 120.00 ft x 29.00 ft (normal load)
273.11 m / 259.08 m x 36.58 m x 8.84 m
Armament:
16 - 4.50" / 114 mm guns (8x2 guns), 45.00lbs / 20.41kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on side ends, evenly spread, all raised mounts - superfiring
72 - 1.57" / 40.0 mm guns (12x6 guns), 2.00lbs / 0.91kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 1.57" / 40.0 mm guns (6x2 guns), 2.00lbs / 0.91kg shells, 1944 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 888 lbs / 403 kg
Shells per gun, main battery: 450
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.50" / 114 mm 630.00 ft / 192.02 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 114 % of normal length
- Torpedo Bulkhead:
2.50" / 64 mm 800.00 ft / 243.84 m 26.00 ft / 7.92 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
2nd: 1.00" / 25 mm 1.00" / 25 mm -
3rd: 0.50" / 13 mm 0.50" / 13 mm -
- Armour deck: 4.00" / 102 mm, Conning tower: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 155,500 shp / 116,003 Kw = 32.02 kts
Range 12,000nm at 16.00 kts
Bunker at max displacement = 6,103 tons
Complement:
1,422 - 1,849
Cost:
£13.835 million / $55.338 million
Distribution of weights at normal displacement:
Armament: 130 tons, 0.3 %
Armour: 9,123 tons, 22.6 %
- Belts: 1,893 tons, 4.7 %
- Torpedo bulkhead: 1,924 tons, 4.8 %
- Armament: 110 tons, 0.3 %
- Armour Deck: 5,121 tons, 12.7 %
- Conning Tower: 76 tons, 0.2 %
Machinery: 3,841 tons, 9.5 %
Hull, fittings & equipment: 14,174 tons, 35.2 %
Fuel, ammunition & stores: 4,445 tons, 11.0 %
Miscellaneous weights: 8,600 tons, 21.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
100,402 lbs / 45,541 Kg = 2,203.6 x 4.5 " / 114 mm shells or 19.3 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 10.1 ft / 3.1 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 1.89
Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.477
Length to Beam Ratio: 7.08 : 1
'Natural speed' for length: 34.37 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 26.00 ft / 7.92 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 55.00 ft / 16.76 m
- Forecastle (20 %): 55.00 ft / 16.76 m (32.00 ft / 9.75 m aft of break)
- Mid (50 %): 32.00 ft / 9.75 m
- Quarterdeck (22 %): 32.00 ft / 9.75 m
- Stern: 32.00 ft / 9.75 m
- Average freeboard: 36.60 ft / 11.16 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 69.7 %
- Above water (accommodation/working, high = better): 296.6 %
Waterplane Area: 69,196 Square feet or 6,429 Square metres
Displacement factor (Displacement / loading): 152 %
Structure weight / hull surface area: 143 lbs/sq ft or 698 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.76
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Hangar deck: 625 x 90 x 18ft
Served by three 45 x 39ft lifts with a capacity for 30,000lbs
Two BAH.II steam catapults (151ft long) with capacity for 40,000lbs aircraft
Arrestor gear of 10 wires, 1 trickle wire, 3 forward wires and two safety barriers
Air Group: 80-120 plus 16 spare aircraft carrie disassembled for attrition replacement
Deck Armour: 1in flight deck, 3in main deck, 1in lower deck (1,282 tons misc weight to sim flight deck armour)
Torpedo Bulkhead: Two 1in and one 0.5in thick bulkheads
Radar Equipment:
Ten Heavy Automatic Gunnery Director Radar Type 289 (CRBF)
Two Gunnery Directior Type 288 with 'Tallboy' console
One Target Indication Type 980
One Aerial Search Type 971
One Surface Search High Definition Type 276
Two Height-Finder Radar Type 972
Passive Radio Intercept Type 293 series
Passive Radar Intercept Type 294 series
VHF Direction Finder Type 295Q
Radio-Location Jammer RU series
Quoted
Production Revolution, Great Britain Cruiser-Destroyer laid down 1947
Displacement:
3,534 t light; 3,708 t standard; 4,207 t normal; 4,605 t full load
Dimensions: Length overall / water x beam x draught
463.00 ft / 448.00 ft x 48.60 ft x 14.70 ft (normal load)
141.12 m / 136.55 m x 14.81 m x 4.48 m
Armament:
4 - 5.50" / 140 mm guns in single mounts, 80.00lbs / 36.29kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 1.57" / 40.0 mm guns (2x6 guns), 2.00lbs / 0.91kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 344 lbs / 156 kg
Shells per gun, main battery: 450
8 - 24.5" / 622.3 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 120.00 ft / 36.58 m 9.00 ft / 2.74 m
Ends: Unarmoured
Main Belt covers 41 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.50" / 38 mm 1.00" / 25 mm 2.00" / 51 mm
2nd: 1.00" / 25 mm 1.00" / 25 mm -
- Conning tower: 0.50" / 13 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 60,000 shp / 44,760 Kw = 34.01 kts
Range 7,000nm at 16.00 kts
Bunker at max displacement = 897 tons
Complement:
260 - 339
Cost:
£2.732 million / $10.926 million
Distribution of weights at normal displacement:
Armament: 53 tons, 1.3 %
Armour: 196 tons, 4.7 %
- Belts: 165 tons, 3.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 28 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.1 %
Machinery: 1,482 tons, 35.2 %
Hull, fittings & equipment: 1,523 tons, 36.2 %
Fuel, ammunition & stores: 673 tons, 16.0 %
Miscellaneous weights: 280 tons, 6.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,954 lbs / 1,340 Kg = 35.5 x 5.5 " / 140 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 2.3 ft / 0.7 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.27
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.460
Length to Beam Ratio: 9.22 : 1
'Natural speed' for length: 24.43 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 24.36 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.50 ft / 8.08 m
- Forecastle (20 %): 21.50 ft / 6.55 m
- Mid (50 %): 20.50 ft / 6.25 m
- Quarterdeck (14 %): 20.50 ft / 6.25 m
- Stern: 20.50 ft / 6.25 m
- Average freeboard: 21.25 ft / 6.48 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 132.5 %
- Above water (accommodation/working, high = better): 144.8 %
Waterplane Area: 14,550 Square feet or 1,352 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 56 lbs/sq ft or 274 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.65
- Longitudinal: 2.62
- Overall: 0.75
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Belt armour is box protection for magazines (40 tons misc weight to sim box roofs)
Torpedo tubes are fixed at an anlge of 55 degrees with one reload for each tube
Twin Squid A/S Mortars are fitted
Electronic Systems;
Surface Search Type 970 X-Band
Height-Finder Radio-Location Type 272
Aerial Search Type 971
Two Gunnery Director Type 288 with 'Tallboy' console
Three Heavy Automatic Gunnery Director Type 289 mounted on three CRBF (Close-Range Blind Firing)
VHF Direction Finder Type 295Q
Type 293 Passive Radio Intercept series (293P, Q, M & O)
Type 297 Passive Radio-Location Intercept (S, C and X-Bands)
ASDIC Type 147
Deep ASDIC Type 148
Depth-Finding ASDIC Type 145
Quoted
Bay Class, Great Britain Sloop laid down 1947
Displacement:
1,210 t light; 1,272 t standard; 1,435 t normal; 1,564 t full load
Dimensions: Length overall / water x beam x draught
340.55 ft / 330.00 ft x 40.00 ft x 9.10 ft (normal load)
103.80 m / 100.58 m x 12.19 m x 2.77 m
Armament:
4 - 4.50" / 114 mm guns (2x2 guns), 45.00lbs / 20.41kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread
6 - 1.57" / 40.0 mm guns (3x2 guns), 2.00lbs / 0.91kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 192 lbs / 87 kg
Shells per gun, main battery: 300
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.50" / 64 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.00" / 25 mm 0.50" / 13 mm -
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 15,000 shp / 11,190 Kw = 27.71 kts
Range 5,000nm at 15.00 kts
Bunker at max displacement = 292 tons
Complement:
116 - 151
Cost:
£0.861 million / $3.445 million
Distribution of weights at normal displacement:
Armament: 29 tons, 2.0 %
Armour: 22 tons, 1.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 22 tons, 1.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 371 tons, 25.8 %
Hull, fittings & equipment: 539 tons, 37.6 %
Fuel, ammunition & stores: 224 tons, 15.6 %
Miscellaneous weights: 250 tons, 17.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,303 lbs / 591 Kg = 28.6 x 4.5 " / 114 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 1.9 ft / 0.6 m
Roll period: 12.2 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.22
Seaboat quality (Average = 1.00): 1.50
Hull form characteristics:
Hull has raised forecastle, low quarterdeck
and transom stern
Block coefficient: 0.418
Length to Beam Ratio: 8.25 : 1
'Natural speed' for length: 21.31 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 33
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.50 ft / 7.16 m
- Forecastle (22 %): 23.50 ft / 7.16 m (17.00 ft / 5.18 m aft of break)
- Mid (50 %): 17.00 ft / 5.18 m
- Quarterdeck (10 %): 10.00 ft / 3.05 m (17.00 ft / 5.18 m before break)
- Stern: 10.00 ft / 3.05 m
- Average freeboard: 17.73 ft / 5.40 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 119.2 %
- Above water (accommodation/working, high = better): 238.1 %
Waterplane Area: 8,531 Square feet or 793 Square metres
Displacement factor (Displacement / loading): 115 %
Structure weight / hull surface area: 35 lbs/sq ft or 170 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 2.91
- Overall: 0.59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
Class Names:
Misc Weight includes:
ASDIC Type 148
Depth-Finding ASDIC Type 145
Passive ASDIC Type 147
Passive Torpedo Warning ASDIC Type 941
Surface Search Type 970
Target Indication Type 287P
Gunnery Director Mk VI with Type 288
Close Range Blind Fire Director (CRBF) with Type 289
HF/DF Type 292
Passive Radio Intercept Type 293 Series
Passive RDF Intercept Type 297
2x Squid A/S Mortar with 30x projectiles per mortar
Quoted
I have still not decided whether to build any 6in automatic cruisers or scrap the entire project.
I've plenty of 5.5in armed AACLs now and the 6in ship would mainly be an anti-surface ship and now the bigger Northumberlands seem able to handle that role much more effectively.
Quoted
I have still not decided whether to build any 6in automatic cruisers or scrap the entire project.
I've plenty of 5.5in armed AACLs now and the 6in ship would mainly be an anti-surface ship and now the bigger Northumberlands seem able to handle that role much more effectively.
Now I am no expert, but what advantages does the 6in automatic give you over the 5.5in automatic? To me I would say "not much" and considering that you have "plenty of 5.5in armed AACLs now", I would think that it is best to stick to that one if it is capable enough.
Quoted
Scout A, Great Britain Rotary-Wing Carrier Scout laid down 1947
Displacement:
5,415 t light; 5,578 t standard; 6,678 t normal; 7,559 t full load
Dimensions: Length overall / water x beam x draught
442.63 ft / 435.00 ft x 55.00 ft x 19.50 ft (normal load)
134.91 m / 132.59 m x 16.76 m x 5.94 m
Armament:
2 - 4.50" / 114 mm guns (1x2 guns), 45.00lbs / 20.41kg shells, 1945 Model
Automatic rapid fire guns in a deck mount with hoist
on centreline forward
8 - 1.57" / 40.0 mm guns (4x2 guns), 2.00lbs / 0.91kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 106 lbs / 48 kg
Shells per gun, main battery: 450
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 75.00 ft / 22.86 m 8.00 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 27 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.50" / 38 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 0.50" / 13 mm 0.50" / 13 mm -
- Armour deck: 2.00" / 51 mm, Conning tower: 0.50" / 13 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 60,000 shp / 44,760 Kw = 31.34 kts
Range 12,000nm at 16.00 kts
Bunker at max displacement = 1,981 tons
Complement:
369 - 480
Cost:
£2.983 million / $11.932 million
Distribution of weights at normal displacement:
Armament: 16 tons, 0.2 %
Armour: 704 tons, 10.5 %
- Belts: 75 tons, 1.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.2 %
- Armour Deck: 614 tons, 9.2 %
- Conning Tower: 4 tons, 0.1 %
Machinery: 1,482 tons, 22.2 %
Hull, fittings & equipment: 2,788 tons, 41.8 %
Fuel, ammunition & stores: 1,263 tons, 18.9 %
Miscellaneous weights: 425 tons, 6.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,748 lbs / 6,236 Kg = 301.7 x 4.5 " / 114 mm shells or 1.8 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 1.84
Hull form characteristics:
Hull has rise aft of midbreak
and transom stern
Block coefficient: 0.501
Length to Beam Ratio: 7.91 : 1
'Natural speed' for length: 24.26 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (20 %): 18.00 ft / 5.49 m
- Mid (30 %): 18.00 ft / 5.49 m (32.00 ft / 9.75 m aft of break)
- Quarterdeck (15 %): 32.00 ft / 9.75 m
- Stern: 32.00 ft / 9.75 m
- Average freeboard: 28.04 ft / 8.55 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.8 %
- Above water (accommodation/working, high = better): 255.6 %
Waterplane Area: 16,592 Square feet or 1,541 Square metres
Displacement factor (Displacement / loading): 158 %
Structure weight / hull surface area: 78 lbs/sq ft or 380 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.80
- Longitudinal: 7.27
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Notes
Main Belt armour is box protection for magazines and aviation stores
Aviation fuel (320 tons) simmed as bunkerage, normal range is 10,000nm at 20kts, with 1,661 tons (could be used as additional bunkaerage in emergency)
Misc Weight:
150 tons for 6x rotary-wing/ gyrocopters/ small seaplanes
30 tons for aviation stores
85 tons for accomodation for 42 air wing personnel
80 tons for CIC
40 tons for RDF
20 tons for electronic gear
20 tons for ASDIC
Quoted
Scout B, Great Britain Rotary-Wing Carrier Scout laid down 1947
Displacement:
6,929 t light; 7,183 t standard; 9,473 t normal; 11,305 t full load
Dimensions: Length overall / water x beam x draught
544.43 ft / 535.00 ft x 65.00 ft x 19.30 ft (normal load)
165.94 m / 163.07 m x 19.81 m x 5.88 m
Armament:
2 - 4.50" / 114 mm guns (1x2 guns), 45.00lbs / 20.41kg shells, 1945 Model
Automatic rapid fire guns in a deck mount with hoist
on centreline forward
2 - 4.50" / 114 mm guns (1x2 guns), 45.00lbs / 20.41kg shells, 1945 Model
Automatic rapid fire guns in a deck mount with hoist
on side amidships, all raised guns
6 - 1.57" / 40.0 mm guns (1x6 guns), 2.00lbs / 0.91kg shells, 1945 Model
Anti-aircraft guns in deck mount
on side forward
4 - 1.57" / 40.0 mm guns (2x2 guns), 2.00lbs / 0.91kg shells, 1945 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 200 lbs / 91 kg
Shells per gun, main battery: 500
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 86.00 ft / 26.21 m 8.00 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 25 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.50" / 38 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 1.50" / 38 mm 1.00" / 25 mm 1.00" / 25 mm
3rd: 1.00" / 25 mm 0.50" / 13 mm -
4th: 0.50" / 13 mm 0.50" / 13 mm -
- Armour deck: 2.00" / 51 mm, Conning tower: 0.50" / 13 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 60,000 shp / 44,760 Kw = 30.35 kts
Range 12,000nm at 20.00 kts
Bunker at max displacement = 4,122 tons
Complement:
479 - 624
Cost:
£3.455 million / $13.819 million
Distribution of weights at normal displacement:
Armament: 30 tons, 0.3 %
Armour: 997 tons, 10.5 %
- Belts: 88 tons, 0.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 18 tons, 0.2 %
- Armour Deck: 887 tons, 9.4 %
- Conning Tower: 5 tons, 0.1 %
Machinery: 1,482 tons, 15.6 %
Hull, fittings & equipment: 3,840 tons, 40.5 %
Fuel, ammunition & stores: 2,544 tons, 26.9 %
Miscellaneous weights: 580 tons, 6.1 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
27,109 lbs / 12,297 Kg = 595.0 x 4.5 " / 114 mm shells or 3.1 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 4.3 ft / 1.3 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.06
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has rise aft of midbreak
and transom stern
Block coefficient: 0.494
Length to Beam Ratio: 8.23 : 1
'Natural speed' for length: 26.84 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (20 %): 21.00 ft / 6.40 m
- Mid (30 %): 21.00 ft / 6.40 m (30.00 ft / 9.14 m aft of break)
- Quarterdeck (15 %): 30.00 ft / 9.14 m
- Stern: 30.00 ft / 9.14 m
- Average freeboard: 27.54 ft / 8.39 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 61.4 %
- Above water (accommodation/working, high = better): 272.6 %
Waterplane Area: 23,961 Square feet or 2,226 Square metres
Displacement factor (Displacement / loading): 198 %
Structure weight / hull surface area: 89 lbs/sq ft or 437 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.87
- Longitudinal: 3.53
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Notes
Main Belt armour is box protection for magazines and aviation stores
Aviation fuel (673 tons) simmed as bunkerage, normal range is 10,000nm at 20kts, with 3,449 tons (could be used as additional bunkaerage in emergency)
Misc Weight:
225 tons for 9x rotary-wing/ gyrocopters/ small seaplanes
45 tons for aviation stores
110 tons for accomodation for 55 air wing personnel
100 tons for CIC
40 tons for RDF
20 tons for electronic gear
20 tons for ASDIC
Quoted
First, deck guns need to be pretty much eliminated from submarines - otherwise, it may be an entirely reasonable choice for the sub to stay on the surface and fight it out against the helicopter.
Quoted
Most CLs still have catapults aboard them but as new AA weapons (often larger mounts) are fitted, space becomes a premium and addition of radar is increasing topweight and catapults are an easy item to remove to cut back on weight and topweight especially. Those same radars are largely making spotter planes redundant for local over-the-horizon recon and gunnery spotting.
Quoted
So, do we gracefully bid farewell to ship-based aircraft and rely on carriers or seek other methods (long-range radar) for reconnaissance.
Quoted
First, deck guns need to be pretty much eliminated from submarines - otherwise, it may be an entirely reasonable choice for the sub to stay on the surface and fight it out against the helicopter.
I doubt that with a helicopter it is going to fly 50 or 100 miles away from the base ship. It is going to stay much closer. When you are in the middle of an ocean, even with a deck gun I doubt that it would be a good strategy for the submarine to engage the helicopter since the base ship won't be that far away. If the helicopter is hovering about 10 miles from the base ship, then your sub could easily be in range of the main guns of that base ship and I doubt that you want your submarine's pressure hull to have a hole in it when you are going to dive.
Quoted
But if you're 50-100 miles from the mothership, the sub might have two to four hours that they could otherwise operate normally before the surface ship arrives in main gun range.
Quoted
But if you're 50-100 miles from the mothership, the sub might have two to four hours that they could otherwise operate normally before the surface ship arrives in main gun range.
Maybe the French choice of operating helicopters? :)
Thanks for the feedback guys. It's always to kick around these kind of ideas and see if there is any use in them, despite whatever sense it makes in my crazy head!
ASW is not the mission for these ships, never entered my mind other than perhaps as a convoy escort in a big war.
Aerial reconnaissance is a tricky thing at the moment. Most CLs still have catapults aboard them but as new AA weapons (often larger mounts) are fitted, space becomes a premium and addition of radar is increasing topweight and catapults are an easy item to remove to cut back on weight and topweight especially. Those same radars are largely making spotter planes redundant for local over-the-horizon recon and gunnery spotting. Also, new seaplanes are not being designed and they are increasingly vulnerable. The FAA is lucky to have the innovative Blackburn fighter-recon, but most cruisers have lumbering biplane Sea Otters and the new Seagull is too big.
So while CLs are losing a less vital tool, the taskforce commander or squadron commander has lost some strategic vision. He may call for carrier support; the RN has a larger carrier fleet (actually bigger than I had initially planned) but is strike and fleet orientated. The four Ocean class are the only scout carrier forces in overseas stations. The new Hermes class ships are capable of launching strikes and are modern ships but probably still too useful for pootling around with a small taskforce, especially since carriers need escorts too (AA ships, ASW ships, plane guard destroyer).
Yet rotary wing has not really reached a key stage of development. Britain has some prototypes but none are frontline suitable and the Navy only has a few Canadian and German types of limited efficiency. Autogyros developed in Canada are still pretty much experimental and woefully lack performance. Its easy to see the next 5 years the helicopter will take off (no pun intended!) and develop for a multitude of tasks. Even then payload is a problem and radar is not going to fit for some time.
So, do we gracefully bid farewell to ship-based aircraft and rely on carriers or seek other methods (long-range radar) for reconnaissance. Carrier-based AEW and surface-radar scouts are more than possible now and perhaps that is the best root and make do with what is available. As attractive as a CVE is, it is building more flattops which I'm loathe to do.
Autogyros developed in Canada are still pretty much experimental and woefully lack performance.
Quoted
Well, the thing is you need space for a helicopter as well. I think more so than a floatplane due to the diameter of the rotor. You can't just remove the floatplane facilities and put helicopter facilities there in its place.
Quoted
If we set up one of my more recent French submarines - Roland Morillot - against a hypothetical opponent, the Morillot has a 100mm deck gun, two 40mm AA guns, and two 15mm machine guns that it could use to shoot at a helicopter.
Quoted
With Jets in various stages of development and deployment, I think the writing would be on the wall for building any small carriers. CVEs sized ships were purely products of piston-era war emergency thinking.
Quoted
Sure I can see somewhere in the future those planes being replaced by helicopters but right now no helicopters exist that can take over the duties of the E16A/M6A or the H8K. Now I never really looked into it, but I guess I should take a look at some ideas for new floatplanes...
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