EntityQ880697· pop 5· linked from 6 articlesBlackbirdSign in to savepropeller-driven land yachtConnectionsYouTubeConceptGoogleOrganizationWayback MachineEntityaerodynamicsEntitywind turbineEntityUniversity of California, Los AngelesEntityNeil deGrasse TysonEntityflywheelEntitypropellerEntityBill NyeEntityDouglasEntityaircraft propellerEntitySan Jose State UniversityEntityDerek MullerEntityapparent windEntityparasitic dragEntityducted fanEntitymechanical efficiencyEntitybrain teaserEntityCategoriesMarine propulsionTricycles