The latest project underway at McCloud Aero Corp is an Electric Variable Pitch Rotor (EVPR). This concept uses electric servos inside the the rotor hub to drive the rotor blades. Power and data are provided wirelessly, making the design self-contained. The concept is in the early stages of development, but you can follow the progress on Hackday.io. The EVPR has been entered for the 2017 Hackaday Prize, so you can support the project by going to Hackday.io and giving it a Like.