EntityQ6414071· pop 6· linked from 103 articlesKinner R-5Sign in to save1930s American piston aircraft engineConnectionsR-540 WhirlwindEntityWorld War IIConceptWayback MachineEntityUnited States Department of DefenseConceptaircraft engineEntityradial engineEntityV engineEntityflat engineEntitycompression ratioEntityengine displacementEntitystraight engineEntityvalvetrainEntityR-1830 Twin WaspEntityH engineEntityW engineEntityaerospace manufacturerEntitystrokeEntitypower-to-weight ratioEntityR-2800 Double WaspEntityR-1820EntityCategories1930s aircraft piston enginesAircraft air-cooled radial piston enginesFive-cylinder enginesKinner aircraft engines