Multicopter with angled rotors
A multicopter with angled rotors includes a fuselage and a plurality of rotors. At least some of the rotors are disposed on opposite sides of the fuselage and each is oriented at a corresponding angle to a substantially horizontal plane of the aircraft, the angle being of a magnitude such that a plane of rotation of the rotor does not intersect at least a critical portion of the fuselage.
1. An aircraft, comprising:
a fuselage having a cockpit portion; and
a plurality of rotors, the plurality of rotors including a first subset of rotors disposed on a first side of the fuselage and a second subset of rotors disposed on a second side of the fuselage, and wherein each rotor is mounted at a corresponding location and each is oriented at a corresponding angle to a substantially horizontal plane of the aircraft, the angle being of a magnitude such that a plane of rotation of the rotor does not intersect at least the cockpit portion of the fuselage and wherein the substantially horizontal plane of the aircraft intersects both the rotor and the cockpit portion of the fuselage.
2. The aircraft of claim 1 , wherein said rotors are mounted on booms, each boom affixed to a corresponding wing of the aircraft.
3. The aircraft of claim 2 , wherein each rotor in said subset is oriented at said corresponding angle at least in part by mounting a corresponding boom at said corresponding angle.
4. The aircraft of claim 1 , wherein said at least a subset of rotors includes a first subset mounted forward of a center of gravity of the aircraft and a second subset mounted aft of the center of gravity.
5. The aircraft of claim 4 , wherein each of the first subset and the second subset includes a first group of rotors angled in a first direction relative to vertical and a second group of rotors angled in a second direction relative to vertical, opposite the first direction.
6. The aircraft of claim 1 , wherein the orienting at respective angles of the rotors in said at least a subset of rotors results in a lateral force component of the respective lift forces generated and applied to the aircraft by said rotors.
7. The aircraft of claim 6 , further comprising a flight control system that includes a processor configured to use said lateral force components to control yaw about a substantially vertical yaw axis of the aircraft.
8. The aircraft of claim 6 , further comprising a flight control system that includes a processor configured to determine a set of actuators and associated actuator parameters to apply a requested set of forces and moments to the aircraft, the requested set of forces and moments including a moment about a substantially vertical yaw axis of the aircraft, and wherein the processor is configured to take into consideration said lateral force components generated and applied to the aircraft by rotors including in said at least a subset of rotors, and the respective contributions of said lateral force components to a net moment about said substantially vertical yaw axis of the aircraft, in determining said set of actuators and associated actuator parameters.
9. The aircraft of claim 1 , wherein the cockpit portion of the fuselage comprises a human-occupied portion.