EntityQ680767· pop 8· linked from 39 articlesBR2Sign in to save1910s British piston aircraft engineConnectionsNightjarEntityBentley BR1EntityUnited KingdomCountryWorld War IConceptYouTubeConceptInternational Standard Book NumberEntityRoyal Air ForceEntityScience MuseumEntityaircraft engineEntityradial engineEntityclose air supportEntityengine displacementEntityvalvetrainEntityrotary engineEntityDaimler CompanyEntityW. O. BentleyEntitystrokeEntityHumber LimitedEntitypower-to-weight ratioEntityaerospace manufacturerEntityCategories1910s aircraft piston enginesAir-cooled aircraft piston enginesRotary aircraft piston engines