‘ग्रीज्ड लाइट्निंग–10 (GL–10)’, जिसका हाल ही में समाचारों में उल्लेख हुआ, क्या है?
Read this question in English
What is ‘Greased Lightning–10 (GL–10)’, recently in the news?
(a) Electric plane tested by NASA · (b) Solar-powered two-seater aircraft designed by Japan · (c) Space observatory launched by China · (d) Reusable rocket designed by ISRO
उत्तर और व्याख्या · explanation in English
Answer: (a) NASA द्वारा परीक्षित विद्युत् विमान
Greased Lightning (GL-10) is an experimental battery-powered aircraft developed by NASA's Langley Research Center. It has ten electric motors and can take off vertically like a helicopter and then fly efficiently like an aeroplane.
- ✓ (a) NASA describes GL-10 as a battery-powered plane with 10 engines, eight electric motors on the wings and two on the tail, that takes off like a helicopter and cruises like an aircraft.
- ✗ (b) GL-10 is a NASA project. It is a small remotely piloted aircraft, not a solar-powered two-seater from Japan.
- ✗ (c) GL-10 is an aircraft, not a space observatory.
- ✗ (d) GL-10 is an aircraft, not a rocket, and it has nothing to do with ISRO.
Remember · GL-10 (Greased Lightning): NASA's ten-motor electric VTOL aircraft prototype from Langley Research Center.
Sources
- NASA: Ten-Engine Electric Plane Prototype Takes Off ↗ “A team at NASA’s Langley Research Center is developing a concept of a battery-powered plane that has 10 engines and can take off like a helicopter and fly efficiently like an aircraft.”
- NASA Technical Reports Server: Greased Lightning (GL-10) Flight Testing Campaign ↗ “Greased Lightning (GL-10) is an aircraft configuration that combines the characteristics of a cruise efficient airplane with the ability to perform vertical takeoff and landing (VTOL).”
Question and answer: UPSC's official GS Paper I (2016, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·