EntityQ449389· pop 10· linked from 48 articlesLeonidesSign in to save9-cylinder radial piston engine family by AlvisConnectionsPercival PembrokeEntityShuttleworth CollectionEntityUnited KingdomCountryWorld War IIConceptsodiumEntityInternational Standard Book NumberEntityWayback MachineEntityBedfordshireEntityoctaneEntityaircraft engineEntityradial engineEntityEast Midlands AirportEntityengine displacementEntitysuperchargerEntityvalvetrainEntityde Havilland Canada DHC-2 BeaverEntityAirspeed OxfordEntitySikorsky S-51 DragonflyEntityBristol BulldogEntitypoppet valveEntityCategories1930s aircraft piston enginesAircraft air-cooled radial piston enginesAlvis aircraft enginesNine-cylinder engines