Calculation of Stick Forces for an Elevator with a Spring Tab Open PDF Document Details Document Type Technical Report Publication Date Jun 01, 1944 Accession Number ADA801196 Entities People Harry B. Greenberg Organizations Langley Research Center Tags DTIC Thesaurus Topics Aerodynamic Forces Aeronautical Laboratories Aeronautics Aircrafts Airplanes Airspeed Altitude Aspect Ratio Center Of Gravity Control Rods Control Sticks Control Surfaces Control Systems Gravity Mach Number Stiffness Surfaces