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 language | English |
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| Pages | 78. 7. 1-78. 7. 10 |
| Publication status | Published - 1978 |
| Event | Am Helicopter Soc, Annu Natl Forum, 34th, Proc, Prepr - Washington, DC, USA Duration: 15 May 1978 → 17 May 1978 |
Conference
| Conference | Am Helicopter Soc, Annu Natl Forum, 34th, Proc, Prepr |
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| City | Washington, DC, USA |
| Period | 15/05/78 → 17/05/78 |