Accession Number : AD0759957

Title :   Low-Temperature Tests of Elastomeric Bearing Rotors on an OH-58 Helicopter in the Climatic Laboratory at Eglin AFB

Descriptive Note : Technical rept.

Corporate Author : BELL HELICOPTER TEXTRON INC FORT WORTH TX

Personal Author(s) : Fagan, C H

PDF Url : AD0759957

Report Date : Feb 1973

Pagination or Media Count : 50

Abstract : The results of a program conducted to investigate the low-temperature characteristics of rotors equipped with elastomeric bearing are reported. An all-elastomeric, two-bladed main rotor and a production tail rotor, with elastomeric bearings installed in the flapping axis, were tested on an OH-58 A helicopter. Tests were conducted at temperatures of 70F, 0F, -25F, -45F, -55F, and -65F. Two main rotor pitch-change bearing configurations were evaluated. The first was fabricated from natural-rubber elastomer and the other from broad- temperature-range elastomer.

Descriptors :   *ANTIFRICTION BEARINGS, *ELASTOMERS, *HELICOPTER ROTORS, BENDING, COLD WEATHER TESTS, LOADS(FORCES), OSCILLATION, RUBBER, TEMPERATURE, TEST METHODS

Subject Categories : Helicopters
      Elastomers and Rubber
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE