Patent ID: 8931729
Filing Date: 2015-01-13
Classification: B64C

Abstract:
1. A system for increasing the thrust and power capabilities of a side-by-side vertical takeoff and landing vehicle, the system comprising: a first coaxial rotor spaced from a vehicle body and a second coaxial rotor spaced from the vehicle body and opposite the first coaxial rotor along a common axis, the first and second coaxial rotors tilting towards a central axis along a length of the vehicle body with a common tilt angle and a common tilt rate while in use, the vehicle body including at least one wing, the first coaxial rotor including a first top propeller aligned with a first bottom propeller along a first rotational axis, the second coaxial rotor including a second top propeller aligned with a second bottom propeller along a second rotational axis, wherein the first and second top propellers have a first length and the first and second bottom propellers have a second length such that the first length is greater than the second length; and during use, a gyroscopic moment from the coaxial rotors of the vehicle is controlled by a controller to maintain pitch stability by modulating the first and second top propellers to have a different rotational speed from the first and second bottom propellers, wherein the first top propeller and the second top propeller rotate with a common rotational speed and the first bottom propeller and the second bottom propeller rotate with a common rotational speed.