MIT researchers have demonstrated that an aircraft with a 5-meter wingspan can sustain steady-level flight using ionic-wind propulsion. The aircraft has no moving parts, does not depend on fossil fuels to fly, and is completely silent. The researchers describe their proof of concept for electroaerodynamic (EAD) airplane propulsion in a paper in the journal Nature . Since the first aeroplane flight more than 100 years ago, aeroplanes have been propelled using moving surfaces such as propellers and turbines. Most have been powered by fossil-fuel combustion. Electroaerodynamics, in which electrical forces accelerate ions in a fluid, has been proposed as an alternative method of propelling aeroplanes—without moving parts, nearly silently and without combustion emissions. However, no aeroplane with such a solid-state propulsion system has yet flown. Here we demonstrate that a solid-state propulsion system can sustain powered flight, by designing and flying an electroaerodynamically propelled heavier-than-air aeroplane. Corresponding author Steven […]