Add to ORKGAn investigation into the effects of aerodynamic and aeroelastic scaling parameters on model scale helicopter rotors has been conducted in the NASA Langley Transonic Dynamics Tunnel. The effect of varying Reynolds number, blade Lock number, and structural elasticity on rotor performance has been studied and the performance results are discussed herein for two different rotor blade sets at two rotor advance ratios. One set of rotor blades were rigid and the other set of blades were dynamically scaled to be representative of a main rotor design for a utility class helicopter. The investigation was conducted in forward ight at rotor advance ratios of 0.15 and 0.35. Additionally, the rotors were tested over a range of nominal test medium densit...
Blade section normal force and ap bending moment were investigated for UH-60 Black Hawk helicopter r...
This paper presents the results from an experimental study of the aerodynamic performance and effici...
Two rotor systems for the UH-1 helicopter were tested in hover and forward flight. The baseline syst...
An investigation into the effects of aerodynamic and aeroelastic scaling parameters on model scale h...
An investigation into the effects of aerodynamic and aeroelastic scaling parameters on model scale h...
SUMMARY An investigation has been conducted in the Langley 6- by 28-Inch Transonic Tunnel to determi...
This report provides data obtained during a wind-tunnel test conducted to investigate parametrically...
An investigation was conducted in the NASA Langley Transonic Dynamics Tunnel to evaluate an advanced...
An investigation was conducted in a transonic dynamics tunnel to measure the performance of a 1/5 sc...
Measurements of the static-thrust performance of six sets of rotor blades mounted on a helicopter fu...
Data for rotors using unconventional airfoils are of interest to permit an evaluation of this techno...
A passive means of tailoring helicopter rotor blades to improve performance and reduce loads was eva...
Summary: An investigation of the effects of compressibility on the hovering-performance characterist...
As part of the general helicopter research program being undertaken by the National Advisory Committ...
Wind-tunnel testing of a properly scaled aeroelastic model helicopter rotor is considered a necessar...
Blade section normal force and ap bending moment were investigated for UH-60 Black Hawk helicopter r...
This paper presents the results from an experimental study of the aerodynamic performance and effici...
Two rotor systems for the UH-1 helicopter were tested in hover and forward flight. The baseline syst...
An investigation into the effects of aerodynamic and aeroelastic scaling parameters on model scale h...
An investigation into the effects of aerodynamic and aeroelastic scaling parameters on model scale h...
SUMMARY An investigation has been conducted in the Langley 6- by 28-Inch Transonic Tunnel to determi...
This report provides data obtained during a wind-tunnel test conducted to investigate parametrically...
An investigation was conducted in the NASA Langley Transonic Dynamics Tunnel to evaluate an advanced...
An investigation was conducted in a transonic dynamics tunnel to measure the performance of a 1/5 sc...
Measurements of the static-thrust performance of six sets of rotor blades mounted on a helicopter fu...
Data for rotors using unconventional airfoils are of interest to permit an evaluation of this techno...
A passive means of tailoring helicopter rotor blades to improve performance and reduce loads was eva...
Summary: An investigation of the effects of compressibility on the hovering-performance characterist...
As part of the general helicopter research program being undertaken by the National Advisory Committ...
Wind-tunnel testing of a properly scaled aeroelastic model helicopter rotor is considered a necessar...
Blade section normal force and ap bending moment were investigated for UH-60 Black Hawk helicopter r...
This paper presents the results from an experimental study of the aerodynamic performance and effici...
Two rotor systems for the UH-1 helicopter were tested in hover and forward flight. The baseline syst...