EntityQ355423· pop 13· linked from 249 articlesNACA cowlingSign in to saveaircraft engine fairingConnectionsaerodynamicsEntityWashington, D.C.EntityVirginiaEntityairplaneEntityInternational Standard Book NumberEntityHerbert HooverEntityWhite HouseConceptPresident of the United StatesConceptcompassEntityGlobal Positioning SystemEntityWayback MachineEntitySmithsonian InstitutionEntityaltimeterEntityperiscopeEntityrudderEntityflight recorderEntitydragEntityautopilotEntityundercarriageEntityavionicsEntityCategoriesAircraft aerodynamicsAircraft componentsNational Advisory Committee for Aeronautics