And when your battleship is obsolete, don't scrap it. Instead, just raise the freeboard, stick a runway on top and call it a carrier.

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Imperius III, Escort carrier laid down 1950

Displacement:
82,755 t light; 84,453 t standard; 84,877 t normal; 85,217 t full load

Dimensions: Length overall / water x beam x draught
918.64 ft / 918.64 ft x 114.83 ft x 36.91 ft (normal load)
280.00 m / 280.00 m x 35.00 m x 11.25 m

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.63" / 16 mm 597.11 ft / 182.00 m 12.86 ft / 3.92 m
Ends: 0.39" / 10 mm 321.49 ft / 97.99 m 12.86 ft / 3.92 m
Upper: 0.59" / 15 mm 597.11 ft / 182.00 m 8.01 ft / 2.44 m
Main Belt covers 100 % of normal length

- Torpedo Bulkhead:
0.63" / 16 mm 597.11 ft / 182.00 m 36.25 ft / 11.05 m

- Armour deck: 0.39" / 10 mm, Conning tower: 0.79" / 20 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 3 shafts, 75,000 shp / 575,166 Kw = 40.00 kts
Range unlimited at 34.00 kts


Complement:
2,486 - 3,232

Cost:
£42.834 million / $171.335 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Armour: 1,579 tons, 1.9 %
- Belts: 390 tons, 0.5 %
- Torpedo bulkhead: 505 tons, 0.6 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 652 tons, 0.8 %
- Conning Tower: 33 tons, 0.0 %
Machinery: 18,445 tons, 21.7 %
Hull, fittings & equipment: 62,731 tons, 73.9 %
Fuel, ammunition & stores: 2,122 tons, 2.5 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
131,803 lbs / 59,785 Kg = 1,220.4 x 6 " / 152 mm shells or 13.1 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 9.2 ft / 2.8 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 34 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.46

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.763
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 30.31 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.81 ft / 10.00 m
- Forecastle (20 %): 32.81 ft / 10.00 m
- Mid (50 %): 32.81 ft / 10.00 m
- Quarterdeck (15 %): 32.81 ft / 10.00 m
- Stern: 32.81 ft / 10.00 m
- Average freeboard: 32.81 ft / 10.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.6 %
- Above water (accommodation/working, high = better): 225.0 %
Waterplane Area: 89,501 Square feet or 8,315 Square metres
Displacement factor (Displacement / loading): 221 %
Structure weight / hull surface area: 488 lbs/sq ft or 2,383 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.00
- Longitudinal: 3.61
- Overall: 3.06
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent