Illustrious, Formidable, Victorious, and Indomitable were prewar construction decisions, and the first three hulls were already substantially assembled when war began. Interruptions after September 1939 dispersed skilled teams, slowed work, and forced yards to regain lost momentum when personnel returned. Comparing launch and commissioning dates suggests that Formidable might arrive about three months earlier and Victorious roughly eight months earlier if completion followed Illustrious's pace. Keeping those hulls moving would create a stronger early-war carrier force and free yards to begin Implacable, Indefatigable, or other follow-on ships sooner.
Notable Point · 37:55-43:02
What uninterrupted work could do for British carrier delivery
Launch-to-commission dates show how wartime labor disruption delayed British carriers that were already substantially assembled.