2、lso airplane)aerostatAlighter-than-aircraft,suchasa balloon or airship.Itsliftiscausedbybuoyancyrelativetosurroundingair.aileronsOnan aircraft,theaileronsarea controlsurface usuallyonthetrailingedgeofthe wings.Theaileronsareusedtocontrol roll.Theaileronsareontheoutsideofthewingsandoperateoppos
3、itely(Ifonegoesup,theothergoesdown).aircraftAvehiclethatcantravelthroughtheair.airplaneApoweredaircraftthatderivesitsliftfromthemovementofairoverfixedliftingsurfaces.(Also aeroplane)airshipAlighter-than-aircraftthatcanbesteeredandpropelledthroughtheair.(Alsodirigible)attitudeThe orientation of