A Magestic is a modernized/improved Colossus
Colossus class light fleet aircraft carriers
Displacement: 18,300 tons full load
Dimensions: 630 x 80 x 23 feet/192 x 24.4 x 7 meters
Extreme Dimensions: 695 x 80 x 23 feet/211.8 x 24.4 x 7 meters
Propulsion: Steam turbines, 4 boilers, 2 shafts, 40,000 shp, 25 knots
Crew: 1300
Armor: none
Armament: 6 quad 2 pound AA, up to 32 20 mm AA or 12-21 40 mm AA
Aircraft: 37
Concept/Program: A mass-production carrier, between the fleet and escort types in capability, designed for rapid production in all shipyards, especially merchant yards and yards without recent carrier construction experience. New construction to this design was selected after consideration of several alternatives, including conversion of existing fast warship and/or merchant hulls. Most of these ships were completed too late to see significant WWII service, but many saw extensive postwar service in foreign navies.
Magestic class light fleet aircraft carriers
Displacement: 17,780 tons full load
Dimensions: 630 x 80 x 23 feet/192 x 24.4 x 7 meters
Extreme Dimensions: 695 x 80 x 23 feet/211.8 x 24.4 x 7 meters
Propulsion: Steam turbines, 4 boilers, 2 shafts, 40,000 hp, 25 knots
Crew: 1300
Armor: none
Armament: 6 quad 2 pound AA, 19 40 mm (design)
Aircraft: 37 (design)
Concept/Program: Originally ordered as Colossus class, but changed to a modified design, incorporating various improvements. These ships were suspended at the end of WWII, and none ever commissioned in the RN. Construction work was not resumed until the ships were sold to foreign navies; eventually two ships were completed to a slightly modified version of the original design, three to an extensively modified design, and one was scrapped incomplete.
Design: Same as Colossus except a strengthened flight deck, improved subdivision and improved armament were fitted.
source: HazeGray.org