Submitted by Jalen_1227 t3_zwj18c in Futurology
JamesTweet t1_j1xg2tu wrote
Reply to comment by Zandrick in Flying cars can actually eventually become a thing by Jalen_1227
If the engine cuts out in a helicopter the pilot can use the energy still of the rotating blades to land. This is called an autorotation landing. But this is no guarantee of a safe landing.
Words_Are_Hrad t1_j1yh8kt wrote
No that is not autorotation. Autorotation involves pitching the blades so they act as a turbine spinning faster as you fall then pitching them back down to create lift just before hitting the ground. It is NOT the leftover energy in the system that is doing it.
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