Shipborne helicopters remove the seaplane recovery penalty

The ability to launch and recover while a formation continues maneuvering makes rotary-wing aircraft attractive for reconnaissance and anti-submarine work. Seaplane recovery forced a warship to slow down, hold a predictable course, and expose itself while the aircraft taxied alongside. That penalty weighed especially heavily on a Royal Navy shaped by the submarine loss of Aboukir, Cressy, and Hogue and accustomed to constant zigzagging. The modern partnership between helicopters and towed arrays shows how distributed anti-submarine work eventually matured. A 1940s force would have simpler sensors and would use the helicopter mainly as a mobile local search and prosecution platform.