UPSC Prelims 2016·GS1·science-and-technology·space

What is 'Greased Lightning-10 (GL-10)', recently in the news?

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Last updated 23 May 2026, 3:31 pm IST
  1. AElectric plane tested by NASACorrect
  2. BSolar-powered two-seater aircraft designed by Japan
  3. CSpace observatory launched by China
  4. DReusable rocket designed by ISRO

Explanation

'Greased Lightning-10 (GL-10)' was an experimental unmanned aerial vehicle (UAV) developed and tested by NASA. Its unique feature was its ability to take off and land vertically like a helicopter but fly efficiently like a plane. This design, known as a 'tilt-wing' aircraft, was battery-powered, making it an electric plane. The GL-10 project aimed to test the feasibility and efficiency of electric propulsion for future aircraft designs, particularly for quieter and more fuel-efficient vertical take-off and landing (VTOL) vehicles.
science-and-technology: What is 'Greased Lightning-10 (GL-10)', recently in the news?

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