Browse TRAIL Inventories

Tire friction coefficients and their relation to ground-run distance in landing

Effect of Helicopter Performance of Modifications in Profile-Drag Characteristics of Rotor-Blade Airfoil Sections

Charts for estimation of the characteristics of a helicopter rotor in forward flight I: profile drag-lift ratio for untwisted rectangular blades

Flight Tests of the Sikorsky HNS-1 (Army YR-4B) Helicopter 2: Hovering and Vertical-Flight Performance With the Original and an Alternate Set of Main-Rotor Blades, Including a Comparison With Hovering Performance Theory

Flight Tests of the Sikorsky HNS-1 (Army YR-4B) Helicopter 1: Experimental Data on Level-Flight Performance With Original Rotor Blades

Stalling of Helicopter Blades

Stalling of Helicopter Blades

Effect of Rotor-Tip Speed on Helicopter Hovering Performance and Maximum Forward Speed

Effect of blade stalling on the efficiency of a helicopter rotor as measured in flight

Analysis of Flight-Performance Measurements on a Twisted, Plywood-Covered Helicopter Rotor in Various Flight Conditions

Helicopter Stability

Notes on the Application of Airfoil Studies to Helicopter Rotor Design

Longitudinal flying qualities of several single-rotor helicopters in forward flight

The application of airfoil studies to helicopter rotor design

Flight measurements and analysis of helicopter normal load factors in maneuvers

Methods for obtaining desired helicopter stability characteristics

Methods for obtaining desired helicopter stability characteristics and procedures for stability predictions

Methods for obtaining desired helicopter stability characteristics and procedures for stability predictions


Published Year

Author