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HUBSCHRAUBER
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V/STOL rotary propulsor noise prediction model update and evaluation
Two generalized fields and their governing equations applied to helicopter acoustics
Twenty-five years of rotorcraft aeroacoustics: Historical prospective and important issues
Three-dimensional sound directivity around a helicopter turboshaft engine
The Royal Air Force Chinook helicopter snow and icing flight envelope
The effects of higher harmonic control on blade-vortex interaction noise and vibration
Supersonic quadrupole noise theory for high-speed helicopter rotors
Study of noise mechanisms of transonic blade-vortex interactions
Smart spring control of vibration and noise in helicopter blades
Rotor noise predictions in hover and forward flight using different aeroacoustic methods
Reduction of blade-vortex interaction noise through porpus leading edge
Reduced In-Plane, Low-Frequency Noise of an Active Flap Rotor
Prediction of blade wake interaction noise based on a turbulent vortex model
Power method for calculating the far acoustic field of the helicopter lift rotor
Potential and limitation of UAV for monitoring subsidence in municipal landfills
Parallelization of a three-dimensional flow solver for Euler rotorcraft aerodynamics predictions
On the contribution of noticeability of environmental sounds to noise annoyance
On linear acoustic solutions of high speed helicopter impulsive noise problems
Noise source localization on a Dauphin helicopter in flight
Noise and the performance of a four-choice psychomotor task
New Technology for Field Survey of Traditional Settlements
New technology aids aerial documentation of right of way
New computational methods for the prediction and analysis of helicopter noise
Modelling of exhaust gas from gas turbines on offshore platforms
Modeling of three-dimensional sound directivity patterns of helicopters
Mechanisms and acoustics of blade-vortex-interactions
Making a smarter, quieter, smoother-riding rotor blade
Low-cost, inflatable, lighter-than-air surveillance system for civilian applications
Langley, McDonnell Douglas study methods of reducting rotor noise
Key results from a Higher harmonic control Aeroacoustic Rotor Test (HART)
Investigation of acoustics propagation in blade-vortex interaction noise
Importance of an accurate prediction of shock curvature for high-speed rotor noise
Impact of rotor design on coaxial rotor performance, wake geometry and noise
Holographic interferometry technique for measuring transonic flow near a rotor blade