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This strange, 1940s hybrid–part airplane, part boat–was not only capable of taking off and touching down on land or water but also sturdy enough to be used with an arresting gear for aircraft carrie

  • Kellett KD-1 Autogiro
  • Grumman J2F Duck
  • Douglas F6F Hellcat
  • Pitcairn PCA-2 Platypus
  • McDonnel VSX-300 Heron