EntityQ1964903· pop 5· linked from 30 articlesNapier DaggerSign in to save1930s British aircraft piston engineConnectionsHandley Page HampdenEntityNapier & SonEntityInternational Standard Book NumberEntitygasolineEntityWayback MachineEntitypistonEntitycarburetorEntityoctane ratingEntityrevolutions per minuteEntityaircraft engineEntityNational Air and Space MuseumEntitycompression ratioEntityengine displacementEntityFairey BattleEntitysuperchargerEntityvalvetrainEntityHartEntityH engineEntitypoppet valveEntitypower-to-weight ratioEntityCategories1930s aircraft piston engines24-cylinder enginesAir-cooled aircraft piston enginesH enginesNapier aircraft engines