Illustrious carrier :
General characteristics
Displacement: as built;
23,207 tons standard
28,919 tons deep
Length: 673 ft (205 m)
Beam: 95 ft (29 m)
Draught: 28 ft (8.5 m)
Propulsion: 6 Admiralty 3-drum water-tube boilers
Parsons geared steam turbines
111,000 shp on 3 shafts
Speed: 30.5 knots (56.5 km/h)
Range: 4,854 tons oil fuel, 11,000 nmi (20,000 km) at 14 knots (26 km/h)
Complement: 817 (Naval) + 394 (Air Wing)
Armament:
16 × QF 4.5 in Mk.III (114 mm L/45) in 8 × twin mounts BD Mk.II
48 × QF 2 pdr Mk.VIII (40 mm L/40) in 6 × octuple mounts Mk.VIII
21 × QF 40 mm Bofors in;
2 x quadruple mounts Mk.II
2 x twin mounts Mk.I
9 x single mounts Mk.III
45 × QF 20 mm Oerlikon in 45 × single mounts P Mk.III
Aircraft carried: as built 36
later up to 72
Essex class :
General characteristics
Type: Aircraft carrier
Displacement: 27,200 long tons (27,600 t)
36,380 tons full load
Length: 872 ft (266 m)
Beam: 93 ft (28 m)
Draught: 23 ft (7.0 m)
Propulsion: Westinghouse geared turbines connected to 4 shafts; 8 Babcock & Wilcox boilers
Speed: 33 knots (61 km/h)
Range: 15,000 nmi. at 15 knots
(28,000 km at 28 km/h)
Armament:
* 12 × 5 in/38 caliber guns (4 × 2 and 4 x 1)
* 68 × 40 mm Bofors gun (17 × 4)
* 65 × 20 mm Oerlikon cannons
Armor: 1.5 in (38 mm) hangar deck, 2.5 to 4 in (64 to 102 mm) belt
Aircraft carried: 90–100 (Lexington 110 aircraft)