Rotary Rocket
Link to The Rotary Rocket Corp
(Ground testing the H2O2 powered rotor)
The Rotary Rocket uses the rotor to slow reentry. It auto rotates until close to the landing point at which time the rotor gets powered by way of rotor-tip rockets using hydrogen peroxide fuel (h2o2). The h2o2 is used to allow the rocket to land exactly where it needs to.
(Hover testing (from a video clip at their website))
