EntityQ6414067· pop 6· linked from 134 articlesKinner K-5Sign in to save1930s American aircraft engineConnectionsWorld War IIConceptWayback MachineEntityCharles LindberghEntityUnited States Department of DefenseConceptaircraft engineEntityV engineEntityradial engineEntityflat engineEntitycompression ratioEntityengine displacementEntitystraight engineEntityvalvetrainEntityR-1830 Twin WaspEntityH engineEntityW engineEntityaerospace manufacturerEntitypower-to-weight ratioEntityR-2800 Double WaspEntityR-1820EntityboreEntityCategories1930s aircraft piston enginesAircraft air-cooled radial piston enginesFive-cylinder enginesKinner aircraft engines