This is a type of gyroplane.[^1 It’s rotor used a NACA 8H12 airfoil section. It is prohibited to fly the aircraft solo from the rear seat.[^1]
For the equation of eigenvalues vs damping ratio, the stable region is on the right-half plane and the unstable region is on the left-half plane.[^1
[[NACA 8H12 Airfoil]] – used in the VPM M16 gyroplane
- CAAPaper2009[^1]