Keywords: sdasm aviation aeronautics sikorsky s-40 s40 aircraft airplane airlines airliners flying boat flyingboat seaplane pan american airways panamericanairways paa pan american panamerican pan american world airways panamericanworldairways pan am panam pan am clipper panamclipper sikorsky aircraft sikorskyaircraft vought-sikorsky voughtsikorsky sikorsky s-40 sikorskys40 pratt and whitney prattandwhitney pratt & whitney prattwhitney p&w pw pratt & whitney r-1690 hornet prattwhitneyr1690hornet pratt & whitney r-1690 prattwhitneyr1690 pratt & whitney hornet prattwhitneyhornet r-1690 hornet r1690hornet r-1690 r1690 hornet flying forest flyingforest text monochrome vehicle Catalog #: 00070994 Manufacturer: Sikorsky Designation: S-40 Catalog #: 00070994 Manufacturer: Sikorsky Designation: S-40 |