Add to ORKGAn investigation was made in the Langley V/STOL tunnel to determine rotor induced effects on a 1/4-scale helicopter model with a conventional empennage and also a V-type empennage with dihedral angles of 45 deg, 50 deg, 55 deg, and 60 deg. Static longitudinal and lateral directional stability data are presented for rotor advance ratios of 0.057, 0.102, and 0.192 in level flight and climb attitudes. The data are presented without analysis or discussion
Tests were conducted in the Langley V/STOL tunnel to determine the effect of the main-rotor wake on ...
Aerodynamic characteristics obtained in a helical flow environment utilizing a rotary balance locate...
Flight test with large helicopter showing trends of lateral and longitudinal control response with s...
The applicability of a V-type empennage on an unpowered semiscale helicopter fuselage is considered ...
Longitudinal aerodynamic characteristics of two full-scale helicopter fuselage model
A wind-tunnel investigation was conducted to refine the aerodynamic characteristics of the rotor sys...
A wind-tunnel model test at advance ratios from 0 to 0.3 with and without auxiliary jet engine thrus...
As part of the general helicopter research program being undertaken by the National Advisory Committ...
Wind tunnel investigation of drag and static stability characteristics of four helicopter fuselage m...
Two rotor systems for the UH-1 helicopter were tested in hover and forward flight. The baseline syst...
Rough conventional, smooth conventional, and laminar-flow or low-drag sections were tested. The item...
A coordinated analysis and ground simulator experiment was performed to investigate the effects on s...
An exploratory wind tunnel investigation of a 21 percent scale powered model of a prototype advanced...
A wind-tunnel investigation was conducted to determine the effects of the main-rotor wake on the aer...
A joint U.S. Army/NASA flight investigation was conducted utilizing a single-rotor helicopter to det...
Tests were conducted in the Langley V/STOL tunnel to determine the effect of the main-rotor wake on ...
Aerodynamic characteristics obtained in a helical flow environment utilizing a rotary balance locate...
Flight test with large helicopter showing trends of lateral and longitudinal control response with s...
The applicability of a V-type empennage on an unpowered semiscale helicopter fuselage is considered ...
Longitudinal aerodynamic characteristics of two full-scale helicopter fuselage model
A wind-tunnel investigation was conducted to refine the aerodynamic characteristics of the rotor sys...
A wind-tunnel model test at advance ratios from 0 to 0.3 with and without auxiliary jet engine thrus...
As part of the general helicopter research program being undertaken by the National Advisory Committ...
Wind tunnel investigation of drag and static stability characteristics of four helicopter fuselage m...
Two rotor systems for the UH-1 helicopter were tested in hover and forward flight. The baseline syst...
Rough conventional, smooth conventional, and laminar-flow or low-drag sections were tested. The item...
A coordinated analysis and ground simulator experiment was performed to investigate the effects on s...
An exploratory wind tunnel investigation of a 21 percent scale powered model of a prototype advanced...
A wind-tunnel investigation was conducted to determine the effects of the main-rotor wake on the aer...
A joint U.S. Army/NASA flight investigation was conducted utilizing a single-rotor helicopter to det...
Tests were conducted in the Langley V/STOL tunnel to determine the effect of the main-rotor wake on ...
Aerodynamic characteristics obtained in a helical flow environment utilizing a rotary balance locate...
Flight test with large helicopter showing trends of lateral and longitudinal control response with s...