Night operations, radio beacons, and Swordfish

Radar is unlikely to have transformed the British fleet by this point, but experience in night operations and radio beacons still matters. Royal Navy aviators have practised night flying and can use those aids to recover and coordinate aircraft in darkness. Large numbers of Swordfish could exploit that experience against a Japanese force still using earlier-generation aircraft and detection methods. The absence of Japanese radar in the scenario makes warning and interception more difficult. These advantages complement the larger argument about fleet readiness and concentration without guaranteeing a British victory.