Investigation of Aerodynamic Interactions Between a Rotor and a T-Tail Empennage

摘要

Experiments were conducted to study the aerodynamic interactions between a smsll-scale helicopter rotor and a T-tail type empennage. Time-averaged and unsteady pressure measurements were made at various chordwise stations on a horizontal tailplane. Flow visualization was performed using the wide-formed using the wide -field shadowgraph method to identify the locations of the rotor wake and blade tip vortices relative to the empennage, and supported the surface pressure re- sponses.