Imagine an aircraft structure that can change its shape in flight to reduce the sonic boom noise produced by supersonics airplanes. Or imagine an airliner that can take-off and fly with a quiet and energy efficient electric propulsion system.
Imagine an aircraft structure that can change its shape in flight to reduce the sonic boom noise produced by supersonics airplanes. Or imagine an airliner that can take-off and fly with a quiet and energy efficient electric propulsion system.