Greased Lightning-10 (GL-10) is an experimental, hybrid-electric aircraft developed and tested by NASA as part of its research into advanced aeronautics.

Key Features of GL-10:

1. Hybrid-electric Design: The GL-10 is a subscale, remotely-piloted aircraft that integrates both electric and conventional propulsion for efficiency and flexibility.
2. VTOL Capability: It is a vertical take-off and landing (VTOL) aircraft, meaning it can take off and land like a helicopter but transition into fixed-wing flight for greater range and efficiency.
3. Potential Applications: NASA is testing the GL-10 as a future unmanned aerial vehicle (UAV), with potential applications in cargo transport, surveillance, and scientific research.
4. Distributed Electric Propulsion: The aircraft showcases distributed electric propulsion technology, which uses multiple electric motors and propellers to enhance thrust, control, and efficiency, paving the way for more advanced electric aircraft in the future.