Perching drones on vertical poles is easier said than done. Researchers have come with a passive wing morphing mechanism for crash-landing on trees and other vertical poles. Its wings are for aerial gliding and perching. It can hold onto various poles larger than 28% of its wingspan. This robot can reorient itself from horizontal to vertical when crashing against a pole.

[HT: Mohammad Askari, Michele Benciolini, Hoang-Vu Phan, William Stewart, Auke J. Ijspeert, Dario Floreano ]

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