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UAV - CyberQuad
The Cyberquad employs direct drive brushless electric motors, avoiding the inefficiencies, maintenance and noise of gearboxes and internal combustion engines. By running relatively low speed rotors with the tips aero-dynamically entrained by the duct wall, BVI noise and tip losses are significantly reduced. These features contribute to the CyberQuad having a very low noise signature for stealth applications.CyberQuad does not employ any complicated, in-efficient control surfaces, swash plates, stabiliser bars, or tail rotors for control. In fact, it does not pay any additional weight or power penalty for control as it simply differentially controls the four modular fans that are already being employed to create life. Furthermore, it has counter rotating pairs of fans so that all gyroscopic dynamics and dissymmetry of lift issues are eliminated.
Cyberquad employs state of the art inertial sensors and high frequency speed controllers to actively stabilise its attitude and heading. This allows both robust disturbances rejection in hover and high maneuverability if needed.
The CyberQuad ducted fans are optimised for high static thrust efficiency (hover endurance); producing 33% more lift than helicopter with the same power and rotor area. This equates to a much smaller footprint for the same payload/endurance capability. With this compact footprint and no exposed rotors, CyberQuad can safely operate near people and through urban environments.