What is 'Greased Lightning-10 (GL-10)', recently in the news?
- AElectric plane tested by NASACorrect
- BSolar-powered two-seater aircraft designed by Japan
- CSpace observatory launched by China
- 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.
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