Reconnaissance, range, and night attack form the doctrine's core

Aircraft range mattered because it extended reconnaissance, maintained contact, guided attacks, and disrupted threats before they reached the fleet. Spotter-reconnaissance aircraft remained a constant across successive generations because information could direct battleship fire, locate an enemy fleet, or lead a carrier strike to its target. Night operations offered a way to impose battle timing through a capability built across the whole fleet. The doctrine joined that information advantage with proactive defense and a reliable torpedo-strike system. A British night strike making contact during the Indian Ocean Raid might have used radar returns to guide attacking aircraft towards Japanese carriers. That remains a hypothesis, and direct wartime use of this specific guidance method is uncertain. The resulting doctrine was imperfect but coherent in this interpretation, shaped by global commitments and the incomplete evidence available before war tested it.