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A flight investigation of performance and loads for a helicopter with nlr-1t main-rotor blade sections
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Tomaine, R. L. Stevens, D. D. Morris Jr., C. E. K. |
| Copyright Year | 1979 |
| Description | Data on performance and rotor loads for a teetering-rotor, AH-1G helicopter flown with a main rotor that had the NLR-1T airfoil as the blade-section contour are presented. The test envelope included hover, forward-flight speed sweeps from 35 to 85 m/sec, and collective-fixed maneuvers at about 0.25 tip-speed ratio. The data set for each test point described vehicle flight state, control positions, rotor loads, power requirements, and blade motions. Rotor loads are reviewed primarily in terms of peak-to-peak and harmonic content. Lower frequency components predominated for most loads and generally increased with increased airspeed, but not necessarily with increased maneuver load factor. |
| File Size | 7525411 |
| File Format | |
| Language | English |
| Publisher Date | 1979-10-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Military Helicopters Teetering Performance Tests Maneuverability Airfoil Profiles Rotor Aerodynamics Rotary Wings Digital Data Loads Forces Aircraft Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
