I can't remember whether or not I've posted this before. I think I have, but I've redrawn her since anyway.
Her design is fairly similar to how Francesco Morosini was reconstructed. I have 70.000tons of carriers available. Morosini takes up 27.000tons leaving me with 43.000tons possible to use. This comes about in the form of two 21.500ton carriers of the same design. Smaller carriers weren't really an option as I can't put much armour on them.
There are two hangars, one above the other with the same dimensions, 130x40x5. The upper hangar is an open hangar where aircraft can warm up their engines, undergo repair and storage. The lower hangar is where aircraft are bombed up and fueled before being transferred to the upper hangar.
The lower hangar is protected by an inverted U shape of 100mm armour. There is 100mm armour on the outside of the hull. The 100mm armour deck is the ceiling of the lower hangar and the floor of the upper hangar.
There are 3 lifts. 2 at each end of the hangar measuring 15x15m. There is one smaller lift 15x10m on the port side opposite the island. The larger lifts go between both hangars. The smaller lift only serves the upper hangar. The location at the side of the flight deck was chosen because it was impossible to locate it in the middle of the hangar. If it was in the middle of the hangar the lift machinery would interfere with the 100mm armour deck and cause a large hole in it. This was unacceptable so a side lift was chosen instead.
There are no catapults as current aircraft do not need them.
Airgroup consists of 5 squadrons of 12 aircraft. There are 12xFiat CR.20N fighters and 48xFiat BR.20 torpedo bombers.
Defensive armament consists of 16x130mm/45 guns in duple turrets. For AA there are 8x37mm/54 quadruple turrets.
The machinery is laid out on the unit principle similar to contemporary cruisers. 110,000shp is good for about 31knts. There are two shafts. There is a novel torpedo defense system with the propellors and rudders being under the hull away from the possibilty of a torpedo hit. The cruising range is extensive.
RM Europa, Italian Portaerei laid down 1927
Displacement:
22,092 t light; 22,813 t standard; 26,826 t normal; 30,036 t full load
Dimensions: Length overall / water x beam x draught
751.14 ft / 721.78 ft x 91.86 ft x 27.23 ft (normal load)
228.95 m / 220.00 m x 28.00 m x 8.30 m
Armament:
16 - 5.12" / 130 mm guns (8x2 guns), 61.73lbs / 28.00kg shells, 1927 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread, all raised mounts - superfiring
32 - 1.46" / 37.0 mm guns (8x4 guns), 2.20lbs / 1.00kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1,058 lbs / 480 kg
Shells per gun, main battery: 300
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.91" / 150 mm 380.58 ft / 116.00 m 11.48 ft / 3.50 m
Ends: Unarmoured
Upper: 3.94" / 100 mm 426.51 ft / 130.00 m 16.40 ft / 5.00 m
Main Belt covers 81 % of normal length
- Torpedo Bulkhead:
1.57" / 40 mm 380.58 ft / 116.00 m 24.44 ft / 7.45 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 1.18" / 30 mm -
2nd: 0.39" / 10 mm - -
- Armour deck: 3.94" / 100 mm, Conning tower: 5.91" / 150 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 110,000 shp / 82,060 Kw = 30.74 kts
Range 6,000nm at 24.00 kts
Bunker at max displacement = 7,224 tons
Complement:
1,047 - 1,362
Cost:
£5.008 million / $20.031 million
Distribution of weights at normal displacement:
Armament: 140 tons, 0.5 %
Armour: 6,484 tons, 24.2 %
- Belts: 2,342 tons, 8.7 %
- Torpedo bulkhead: 542 tons, 2.0 %
- Armament: 76 tons, 0.3 %
- Armour Deck: 3,410 tons, 12.7 %
- Conning Tower: 114 tons, 0.4 %
Machinery: 3,472 tons, 12.9 %
Hull, fittings & equipment: 8,195 tons, 30.6 %
Fuel, ammunition & stores: 4,734 tons, 17.6 %
Miscellaneous weights: 3,800 tons, 14.2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
51,490 lbs / 23,356 Kg = 768.1 x 5.1 " / 130 mm shells or 7.7 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 6.3 ft / 1.9 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 1.52
Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.520
Length to Beam Ratio: 7.86 : 1
'Natural speed' for length: 31.19 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 33.79 ft / 10.30 m
- Forecastle (25 %): 33.79 ft / 10.30 m (23.95 ft / 7.30 m aft of break)
- Mid (50 %): 23.95 ft / 7.30 m
- Quarterdeck (20 %): 23.95 ft / 7.30 m
- Stern: 23.95 ft / 7.30 m
- Average freeboard: 26.41 ft / 8.05 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 80.3 %
- Above water (accommodation/working, high = better): 204.0 %
Waterplane Area: 46,815 Square feet or 4,349 Square metres
Displacement factor (Displacement / loading): 146 %
Structure weight / hull surface area: 120 lbs/sq ft or 586 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.41
- 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