Composite hub for a helicopter rotor
Helicopter rotor hub
Helicopter rotor control system with integrated hub
Device for controlling cyclic and collective pitch of a helicopter rotor
Hub plate for a helicopter rotor, method of manufacturing it, and a helicopter rotor hub equipped with plates
Flexible swashplate centering member
Filament wound structure having filament wound reinforcing rings for use as a torque drive
ApplicationNo. 07/080369 filed on 07/30/1987
US Classes:416/114, Selectively adjustable416/134A, Aircraft rotors416/230, Wire, fiber, strand or fabric416/244RSUPPORT MOUNTING, CARRIER OR FAIRING STRUCTURE
ExaminersPrimary: Powell, Everette A. Jr.
International ClassesB64C 27/00 (20060101)
B64C 27/605 (20060101)
AbstractA helicopter composite swashplate ring that has a triaxial braided tubular ring that withstands both forces in-plane and normal to the plane of the swashplate. The triaxial braided tubular ring comprises substantially circumferential fibers interwoven with angled fibers oriented at a predetermined angle to the circumferential fibers. The tubular ring contains a composite circumferential spacer ring that comprises an upper ring plate connected to a lower ring plate by a plurality of first tubular support members. The upper ring plate and lower ring plate are adjacent the inside upper and insider lower surfaces of the tubular ring, respectively. The upper and lower plates have openings in alignment with the first tubular support members. The ring plates have a plurality of sections extending radially outward. The sections have lug openings that are in alignment with a plurality of second vertical support members to form channels therethrough for accepting servo or control rod lugs.