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Optimal-time quadcopter descent trajectories avoiding the vortex ring and autorotation states - ScienceDirect
![Sascha on Twitter: "Helicopter 🚁 : Vuichard Recovery Technique - How to escape a Vortex Ring State Best Video to: explain this 🤩 https://t.co/6DZCh6u77B #helicopter #Vortex https://t.co/j3qmLghwvm" / Twitter Sascha on Twitter: "Helicopter 🚁 : Vuichard Recovery Technique - How to escape a Vortex Ring State Best Video to: explain this 🤩 https://t.co/6DZCh6u77B #helicopter #Vortex https://t.co/j3qmLghwvm" / Twitter](https://pbs.twimg.com/media/EunRhQzXMAUbXLB.jpg:large)
Sascha on Twitter: "Helicopter 🚁 : Vuichard Recovery Technique - How to escape a Vortex Ring State Best Video to: explain this 🤩 https://t.co/6DZCh6u77B #helicopter #Vortex https://t.co/j3qmLghwvm" / Twitter
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