Accession Number : AD0747337

Title :   Development of Composite Technology for Dynamic Component Application.

Descriptive Note : Final rept.,

Corporate Author : BOEING CO MORTON PA VERTOL DIV

Personal Author(s) : Pinckney,Robert L. ; Fritzsche,H. L.

Report Date : JUN 1972

Pagination or Media Count : 96

Abstract : In this program, composite materials were used in the fabrication of a CH-47 pitch link (a heavily loaded tension-compression member in the dynamic flight control system. A dual-load-path structure was designed. HT GRAPHITE WAS SELECTED FOR THE PRIMARY LOAD MEMBER, S-901 glass for the secondary member, and high-tensile carbon-steel wire for the hoop windings in the metal end- fittings. Semiautomatic production techniques were evaluated and refined during fabrication of the two specimen pitch links as a means of reducing the cost of the components. The completed specimens were tested and evaluated by the Army Materials and Mechanics Research Center. (Author, modified-PL)

Descriptors :   (*HELICOPTERS, FLIGHT CONTROL SYSTEMS), (*FLIGHT CONTROL SYSTEMS, COMPOSITE MATERIALS), (*COMPOSITE MATERIALS, *FILAMENT WOUND CONSTRUCTION), GLASS TEXTILES, CARBON FIBERS, GRAPHITE, MANUFACTURING

Subject Categories : Helicopters
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE