US 11,738,862 B2
Fail-operational vtol aircraft
Abraham Karem, Santa Ana, CA (US); Ryan Doss, Irvine, CA (US); William Martin Waide, Central Point, OR (US); and Benjamin Tigner, Laguna Beach, CA (US)
Assigned to Overair, Inc., Santa Ana, CA (US)
Filed by Overair, Inc., Santa Ana, CA (US)
Filed on Nov. 24, 2020, as Appl. No. 17/103,063.
Application 17/103,063 is a continuation in part of application No. 16/869,188, filed on May 7, 2020.
Claims priority of provisional application 62/981,738, filed on Feb. 26, 2020.
Claims priority of provisional application 62/966,908, filed on Jan. 28, 2020.
Prior Publication US 2021/0347472 A1, Nov. 11, 2021
Int. Cl. B64C 29/00 (2006.01); B64C 11/30 (2006.01); B64C 11/46 (2006.01)
CPC B64C 29/0033 (2013.01) [B64C 11/305 (2013.01); B64C 11/46 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An aircraft capable of carrying at least 400 pounds of payload, comprising:
a main body;
a forward wing mechanically coupled to the main body;
an aft wing mechanically coupled to the main body;
a first variable pitch rotor, a second variable pitch rotor, a third variable pitch rotor, and a fourth variable pitch rotor, with each of the rotors being independently driven by at least one torque-producing source;
each of the first, second, third, and fourth variable pitch rotors are variable speed rotors;
the first and second variable pitch rotors are carried by the forward wing;
the third and fourth variable pitch rotors are carried by the aft wing; and
wherein the first variable pitch rotor, the second variable pitch rotor, the third variable pitch rotor, and the fourth variable pitch rotor are each primary rotors, providing sufficient thrust such that the aircraft is capable of controlled vertical takeoff and landing, even if only any three of the variable pitch rotors are operational.