What happens when a helicopter loses power?

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Tags

1. #called
2. #where
3. #altitude
4. #effect
5. #autorotation
6. #engine
7. #creating
8. #doesn
9. #helicopter
10. #pilot
11. #pitch
12. #rotor
13. #aircraft
14. #blades
15. #windmilling
16. #blows
17. #ground
18. #loses
19. #enters
20. #reduces