Back to results
US 2026/0285482 A1Published application
Aircraft with transonic rotor
AssigneeKarem Aircraft, Inc.
InventorsAbraham Karem, John Paul Parcell, Sage Thayer, Ryan Patterson
Life of this patent
Estimating the term…
Abstract
A rotorcraft aircraft design incorporates double swept forward and aft rotor blades to configured to provide efficient hover and efficient cruise at Mach number of 0.65-0.7 without varying a diameter of the rotor. The aircraft design combines the benefits of helicopters and fixed-wing aircraft, enabling vertical takeoff and landing (VTOL) capabilities while also achieving improved forward flight speed and reduced noise emissions.
Claims13
A tilt rotor aircraft, comprising:
- A first proprotor having a blade with an inboard portion and a swept outboard portion, in which:
- the swept portion occupies at least 50% of a length of the blade;
- and
- a leading edge of the blade is swept both forward and aft;
- wherein the blade is constructed of a medium-modulus carbon fiber whereby a distribution of fiber orientations changes from 0 degree fibers at a blade root and 45 degree fibers at an outboard station of the blade;
- and
- a drive system with variable RPM coupled to the first proprotor, the drive system configured to drive the first proprotor to a tip speed between Mach 0.8-0.9.
4 more elements
Dependencies are inferred from the claim text.