Accession Number : AD0710694
Title : A METHOD FOR CALCULATING HELICOPTER VORTEX PATHS AND WAKE VELOCITIES.
Descriptive Note : Final rept. Nov 68-Dec 69,
Corporate Author : AIR VEHICLE CORP SAN DIEGO CALIF
Personal Author(s) : Levinsky,E. S. ; Strand,T.
Report Date : JUL 1970
Pagination or Media Count : 72
Abstract : A simple method is developed for calculating the time averaged velocity field induced at large distances from the rotor by a helicopter in steady horizontal motion. The influence of the ground plane and of horizontal winds on the rotor wake and velocity field is included. (Author)
Descriptors : (*HELICOPTER ROTORS, *DOWNWASH), VORTICES, VELOCITY, WAKE, FLOW FIELDS, MATHEMATICAL PREDICTION
Subject Categories : Aerodynamics
Distribution Statement : APPROVED FOR PUBLIC RELEASE