Aircraft Planes by Roger & Paula Berk An aircraft is a machine that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Journal · 05 · 15+♥ 718 Last update at 15 · 05 · by milo ‧‧‧ One of 3425Aircraft More in Aircraft Home AircraftPlanes by Roger & Paula Berk PIFTW