Which Second World War naval aircraft were especially maintenance-heavy?
Short answerThe Seafire was particularly demanding, with the Corsair also intensive; the Swordfish was simpler and the Hellcat was a practical aircraft to maintain.
NotesThe Seafire was especially demanding among the aircraft discussed. The Corsair falls toward the middle of the range, while the Swordfish was relatively less intensive and the Hellcat was a practical aircraft to maintain. A later answer adds that Seafires could become hangar queens when spare parts were unavailable. Such differences affected how much forward support a carrier force required and whether damaged aircraft could return to service.