How much difference would Colossus-class carriers in service from 1938 make?
Short answerA great deal; they would enable multi-carrier operations and add partners to historically overworked fleet carriers.
NotesExtra light carriers could accompany Illustrious at Taranto, support Formidable, partner Ark Royal in Force H, and reinforce Victorious. Even modest air groups matter because they multiply the decks, scouting cycles, and strike packages available to a theater commander.