Passively stable micro VTOL UAV

Summary: Normally VTOL and hovering UAVs are considered to be unstable and difficult to control unless they are equipped with sophisticated sensors and electronics.

The Proxflyer co-axial rotor helicopters utilize a new mechanical and aerodynamically approach to the challenge of achieving stability. This patented concept has been developed over many years by the company Proxflyer AS in Norway and the most unique feature offered by these small VTOL and hovering aircrafts is that they are passively stable. They are stable with respect to the surrounding air and are therefore ideal for indoor use.

So far the concept has been used with success in small UAVs and aircrafts equipped with wireless video cameras, low cost fully functioning toy helicopters and in sub-micro helicopters like the Micron and the Nanoflyer.

Download full PDF document here: Proxflyer-UVS-04.pdf