The cost of qualifying carrier crews for night flying

Night flying offered a way to attack an opponent unable to respond effectively after dark. Qualifying pilots to land on a moving carrier at night was difficult, exhausting, and dangerous. Recovery still required lights or beacons, exposing the carrier's position in an otherwise dark sea. British practice accepted those costs for the operational advantage. Navies making a different choice had to weigh the training losses and risk of revealing their carriers against the same benefit.