Fixed-wing drone lands on vertical surfaces like a bug
 

Scientists have borrowed a few tricks from Mother Nature in order to create a drone capable of landing flush against a wall. The Multimodal Autonomous Drone (S-MAD) looks like a small airplane and flies like a glider, but on approaching a flat surfac...

https://www.engadget.com/2017/08/22/...es-like-a-bug/