Solid-State Propulsion First for MIT Dispensing with propellers and turbines, the first flights of an aircraft with solid-state propulsion have been conducted by researchers at the Massachusetts Institute of Technology (MIT). The lightweight unmanned aircraft made 10 sustained level flights indoors, using electroaerodynamic (EAD) propulsion. Launched by bungee into steady level flight, the 5-m-span (16.4-ft.), 2.45-kg (5.4-lb.) aircraft was able to fly at just under 5 m/s (11 mph) for 50 m ...

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