ON THE DESIGN OF MODELS FOR HELICOPTER RESEARCH AND DEVELOPMENT Open PDF Document Details Document Type Technical Report Publication Date Oct 01, 1953 Accession Number AD0020523 Entities People Leonard Goland Organizations Princeton University Tags Communities of Interest Air Platforms DTIC Thesaurus Topics Aerodynamic Characteristics Aerodynamic Forces Boundary Layer Boundary Layer Flow Drag Engineering Fixed Wing Aircraft Flow Fluid Dynamics Frequency Froude Number Helicopters Mach Number Reynolds Number Rotary Wing Aircraft Simulations Turbulent Boundary Layer