Last but not least, four improved Nereus class CV's will be laid down in 1946. They have the latest AA weaponry, auto 5.1" guns and improved deck armor.
Improved Nereus, Atlantean Aircraft carrier laid down 1946
Displacement:
29,354 t light; 30,443 t standard; 33,702 t normal; 36,309 t full load
Dimensions: Length overall / water x beam x draught
746.11 ft / 725.00 ft x 104.00 ft x 28.60 ft (normal load)
227.41 m / 220.98 m x 31.70 m x 8.72 m
Armament:
16 - 5.10" / 130 mm guns (8x2 guns), 66.33lbs / 30.09kg shells, 1946 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, all raised mounts
16 - 2.95" / 74.9 mm guns (8x2 guns), 12.84lbs / 5.82kg shells, 1946 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
40 - 0.79" / 20.0 mm guns (10x4 guns), 0.24lbs / 0.11kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 8 raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1946 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1,277 lbs / 579 kg
Shells per gun, main battery: 550
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 440.00 ft / 134.11 m 16.50 ft / 5.03 m
Ends: Unarmoured
Main Belt covers 93 % of normal length
- Torpedo Bulkhead:
2.36" / 60 mm 360.00 ft / 109.73 m 29.99 ft / 9.14 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.98" / 25 mm 1.57" / 40 mm
2nd: 1.00" / 25 mm - -
3rd: 0.59" / 15 mm - -
- Armour deck: 4.50" / 114 mm, Conning tower: 3.94" / 100 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 169,642 shp / 126,553 Kw = 33.00 kts
Range 15,000nm at 15.00 kts
Bunker at max displacement = 5,866 tons
Complement:
1,243 - 1,616
Cost:
£12.600 million / $50.399 million
Distribution of weights at normal displacement:
Armament: 186 tons, 0.6 %
Armour: 6,923 tons, 20.5 %
- Belts: 1,253 tons, 3.7 %
- Torpedo bulkhead: 944 tons, 2.8 %
- Armament: 90 tons, 0.3 %
- Armour Deck: 4,548 tons, 13.5 %
- Conning Tower: 88 tons, 0.3 %
Machinery: 4,237 tons, 12.6 %
Hull, fittings & equipment: 10,608 tons, 31.5 %
Fuel, ammunition & stores: 4,348 tons, 12.9 %
Miscellaneous weights: 7,400 tons, 22.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
52,845 lbs / 23,970 Kg = 796.8 x 5.1 " / 130 mm shells or 8.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 6.4 ft / 1.9 m
Roll period: 17.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 1.28
Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.547
Length to Beam Ratio: 6.97 : 1
'Natural speed' for length: 31.49 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 55
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: 58.00 ft / 17.68 m
- Forecastle (20 %): 58.00 ft / 17.68 m (24.00 ft / 7.32 m aft of break)
- Mid (50 %): 24.00 ft / 7.32 m
- Quarterdeck (15 %): 24.00 ft / 7.32 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 30.80 ft / 9.39 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.5 %
- Above water (accommodation/working, high = better): 200.9 %
Waterplane Area: 54,626 Square feet or 5,075 Square metres
Displacement factor (Displacement / loading): 139 %
Structure weight / hull surface area: 135 lbs/sq ft or 660 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.76
- Overall: 1.05
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
6400 tons for 80 aircraft
200 tons for 8 spare aircraft (25 tons each)
200 tons for future growth
150 tons for electronics
150 tons for additional damage control
100 tons for command space