Patent ID: 11897604
Assignee: KAREM AIRCRAFT, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A fleet of aircraft, comprising:
a first tiltrotor aircraft having a first rotor with rotor diameter of between 12 and 80 feet inclusive, inboard wing span between 21 and 185 feet inclusive, and fuselage length between 20 and 100 feet inclusive;
a second tiltrotor aircraft having a second rotor with rotor diameter of between 12 and 80 feet inclusive, inboard wing span between 21 and 185 feet inclusive, and fuselage length between 20 and 100 feet inclusive;
wherein the rotor diameter of the second rotor is at least 10% larger than the rotor diameter of the first rotor;
wherein each of the first and second rotors has multiple blades, and a radius measured from a center of rotor rotation, and wherein at 10% of the rotor radius, the flap stiffness of the blades in lbs-in2 is not less than 25 times the diameter of the rotor in feet to the fourth power; and
wherein the only parts difference in power source and drivetrain components between the first and the second aircraft is different gearsets.