DESIGN AND DEVELOPMENT TESTS OF A FOUR-BLADED LIGHT HELICOPTER ROTOR SYSTEM.

  • Wesley L. Cresap
  • , Alan P. Myers
  • , Sathy P. Viswanathan

Research output: Contribution to conferencePaperpeer-review

Abstract

A four-bladed, soft-inplane rotor of composite construction has been designed and flight tested on a 206L prototype helicopter as part of the continuing research and development effort of Bell Helicopter Textron. In the first 10 months of operation, 300 hours of flight have been accumulated. These encompassed both development tests and service suitability evaluations in high altitude, cold weather, and desert environments. Measurements during flights to 169 mph and maneuvers to 2. 6g indicate the hub and blades have unlimited fatigue lives. Vibrations are low throughout the helicopter flight envelope. High altitude tests show the rotor to provide exceptionally good autorotative characteristics.

Original languageEnglish
Pages78. 7. 1-78. 7. 10
Publication statusPublished - 1978
EventAm Helicopter Soc, Annu Natl Forum, 34th, Proc, Prepr - Washington, DC, USA
Duration: 15 May 197817 May 1978

Conference

ConferenceAm Helicopter Soc, Annu Natl Forum, 34th, Proc, Prepr
CityWashington, DC, USA
Period15/05/7817/05/78

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