Well, in order to fly, just as in a human aircraft, you need wings that can generate sufficient aerodynamic forces, you need an engine sufficient to generate the power required for flight, and you need a controller, and in the first human aircraft, the controller was basically the brain of Orville and Wilbur sitting in the cockpit.
Bem, para voar, simplesmente, um avião precisa de asas que possam gerar  forças aerodinâmicas suficientes, um motor com potência suficiente para voar e precisa de um controlador. No primeiro avião,  o controlador era basicamente os cérebros de Orville e Wilbur  sentados no "cockpit".