EntityQ467965· pop 12· linked from 385 articlesType 171 SycamoreSign in to savehelicopter family by the Bristol Aeroplane CompanyConnectionsOperation OverlordEntitySikorsky S-51 DragonflyEntityScoutEntityGermanyCountryAustraliaCountryUnited KingdomCountryBelgiumCountryAustriaCountryLondonCityBruneiCountryWorld War IIConceptfloodEntityInternational Standard Book NumberEntityhelicopterEntityLeedsEntityInternational Standard Serial NumberEntityambulanceEntityLockheed Martin F-35 Lightning IIConceptQ156944EntityBoeing 707EntityCategories1940s British helicopters1940s British military utility aircraftAircraft first flown in 1947Bristol Aeroplane Company aircraftHelicopter historySearch and rescue helicoptersSingle-engined piston helicopters