Charts for Helicopter-Performance Estimation Open PDF Document Details Document Type Technical Report Publication Date Aug 01, 1945 Accession Number ADA800942 Entities People Herbert W. Talkin Organizations Langley Research Center Tags Communities of Interest Air Platforms DTIC Thesaurus Topics Actuators Aeronautical Laboratories Aeronautics Aircrafts Airfoils Airframes Blade Tips Blades Climbing Coefficients Computations Equations Flight Flight Paths Fuselages Helicopters Rotary Wing Aircraft