Textron Innovations Inc.

Sikorsky Aircraft Corporation

Ryan Smith

Bryan Kenneth Baskin

Frank B Stamps

Richard Erler Rauber

Patrick R Tisdale

David Popelka

Frank Paul D'Anna

James Braswell, Jr

Keith Alan Stanney

Thomas C Campbell

Robert D Higbie

Tom Donovan

Mark E Wasikowski

John J Corrigan, Iii

An attachment assembly for coupling a rotary blade to a hub includes a hollow shear pin, a nut cap, and a tensioning fastener. The hollow shear pin defines an attachment axis. The nut cap abuts the shear pin along the attachment axis. The tensioning fastener is seated within the shear pin, is threadably engaged to the nut cap, and has an axial length that is smaller than an axial length of the shear pin to fix a rotary blade to a rotor assembly within a profile of the rotary blade.

Rotorcraft rotor assemblies

A pitch control system for blades on a rotor of an aircraft has a gimballing rotor hub () and a plurality of step-over arms () connected to the hub and capable of pivoting relative to the hub about a pivot axis. Each of a plurality of pitch links () connects one of the step-over arms () to a flight control system for pivoting the connected step-over arm () about the pivot axis and relative to the hub in response to inputs from the control system. Each of a plurality of step-over links () connects one of the step-over arms () to one of the blades for rotating the associated blade about the pitch axis in response to pivoting of the associated step-over arm.

Step-over blade-pitch control system

Growing community of inventors

Fort Worth, TX, United States of America

Ryan Smith