Looks like Piasecki Airgeep from half a century ago. They are presumably using modern RC yaw/pitch/roll sensors and controls. Overlapping rotors probably correct Airgeep's roll sensitivity.
They'd still have Airgeep's high disk loading. High disk loading makes low efficiency, meaning high power required, high fuel consumption, and low lift ability.
Looks like Piasecki Airgeep from half a century ago. They are presumably using modern RC yaw/pitch/roll sensors and controls. Overlapping rotors probably correct Airgeep's roll sensitivity.
They'd still have Airgeep's high disk loading. High disk loading makes low efficiency, meaning high power required, high fuel consumption, and low lift ability.