Commercial use of remote pilot aircraft systems (RPAS) is currently limited by flight time. The current flight time of RPAS is typically around 10-40 minutes, creating a utility barrier where the operational cost is not offset by gains from its application.

Researchers at The University of Queensland have patented an innovative configuration of RPAS which combines features of a standard helicopter and a standard quadrotor. The ‘Y4’ design
comprises a triangular quadrotor with a single large main rotor for high efficiency, and three small rotors for control and counter-torque. The Y4 has an approximately 200% improvement in energy efficiency over existing state-ofthe-art systems. It can perform any task done by a conventional quadrotor or remote helicopter; however, it has superior flight times and remarkable hovering stability, positioning it for many commercial/industrial applications.

Watch a short demonstration