Amphibious
Vought OS2U Kingfisher
Observation floatplane in the 1940s
Grumman J2F Duck
Utility amphibian aircraft introduced in 1936
Grumman G-21 Goose
$62,180 transport amphibious aircraft as of 1942
Martin P5M Marlin
American patrol flying boat in 1951
Martin PBM Mariner
Patrol bomber flying boat introduced in 1940