Sikorsky Aircraft Corporation

Jonathan K Wong

Joshua David Isom

Joshua A Breon

Benjamin Isabella

Krzysztof Kopanski

Austin Fang

Daniel A Griffiths

Michael Skylar Lawson

A tail rotor blade for a helicopter includes a blade body defining a longitudinally extending spar cavity, a leading edge forward of the spar cavity, and a trailing edge aft of the spar cavity. Upper and lower airfoil surfaces extend from the leading edge to the trailing edge on opposite sides of the spar cavity. The upper and lower airfoil surfaces define between one another a constant airfoil segment and transition airfoil segments disposed longitudinally adjacent to the constant airfoil segment on inboard and outboard sides of the constant airfoil segment.

Helicopter tail rotor blades and blade assemblies

Embodiments are directed to obtaining data from at least one sensor, the data pertaining to rotor loads and motion, processing, by a device comprising a processor, the data to obtain an estimate of at least one of gross weight (GW) and center of gravity (CG) for a rotorcraft, and outputting the estimate.

Estimation of gross weight and center-of-gravity

Growing community of inventors

Trumbull, CT, United States of America

Jonathan K Wong