Accession Number : AD0783393
Title : Flight Test of a Hingeless Flexbeam Rotor System.
Descriptive Note : Final rept.,
Corporate Author : BELL HELICOPTER CO FORT WORTH TEX
Personal Author(s) : Hughes,Charles W. ; Wernicke,Rodney K.
Report Date : JUN 1974
Pagination or Media Count : 214
Abstract : This report presents the results of flight tests of a stiff-in-plane flexbeam hingeless four-bladed main rotor, hereafter referred to as the Model 609. The tests were conducted on a modified UH-1 at gross weights from 10,000 to 14,000 pounds and at level-flight speeds up to 150 knots to evaluate performance, handling qualities, maneuverability, and load levels. The tests also evaluated a focused pylon system designed for isolating rotor vibrations. (Modified author abstract)
Descriptors : *HELICOPTER ROTORS, LEVEL FLIGHT, FLIGHT MANEUVERS, AERODYNAMIC LOADING, STALLING, STABILITY, FLIGHT TESTING
Subject Categories : Aerodynamics
Distribution Statement : APPROVED FOR PUBLIC RELEASE