RESULTS OF WAKE SURVEYS ON ADVANCED ROTOR PLANFORMS

The results of an experimental investigation of wake surveys on advanced rotor planforms are presented. An unobtrusive seven-hole pressure probe was used to survey wake data. A system of six probes affixed to a traverse was used. Care was taken to make comparisons of wake data at equivalent lift levels. Plots of force and moment data, velocity vector and vortex intensity are presented. The test resulted in the compilation of a large data base from which analytical methods can be judged.