article_snippet: Solar panels on wings and rear engine that doubles as wind turbine .
article_snippet: Once it reaches the right altitude, however, the central engine turns off and starts to generate electricity from the airflowing through the central engine.
article_snippet: Solar panels would also help to generate electrical power that the aircraft uses while it is in flight.
article_snippet: Excess energy stored in the aircraft's batteries could be recovered by special electrical storage trucks on the ground when Excess energy stored in the aircraft's batteries lands.
article_snippet: Once air bourne the rear engine can be converted into a turbine that produce electricity from the air flowing through air bourne to help power the aircraft .