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.

Report Date:

1973-02-01

Pagination or Media Count:

50.0

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