Laboratory of biometry and flexible manipulation at Stanford University (USA) is experimenting with unmanned aircraft, will be able to sit on... a vertical surface.
A prototype device was equipped with a special hook, steel hook that will stay on the walls and a small motor with a propeller.
The launch can be done manually: a person simply need to throw the drone in the desired direction. Built-in sensors and the processor of the UAV to help determine when it approaches a steep site, after that, the scoring bow. Such a maneuver made it possible to reduce airspeed to a couple meters per second and engaged with the wall.
Sitting on the wall, the drone can stay on it the necessary time. Activate the propeller and pulling the tabs, the unit independently separated from a vertical surface and continues the flight. While at first he moves the upper part of the fuselage down, and turns over only when you reach the desired flight stability.
The aircraft consumes very little power. In the future, his wings plan to equip solar panels, which will give the ability to recharge the battery while "Parking" on the walls.
Drone with vertical landing can be useful for surveillance and rescue operations where it is difficult to get to.
Source: /users/413