United States. National Advisory Committee for Aeronautics

Harvard Lomax

James B. Whitten

Antonio Ferri

Benjamin Milwitzky

P. S. Klebanoff

Dean R. Chapman

Robert L. Halfman

B. Porter Brown

Robert G. Chilton

Louis W. Habel

Norman R. Bregrun

James H. Henderson

Loma Sluder

Louis M. Nucci

William R. Wimbrow

Z. W. Diehl

Mason F. Miller

Robert H. Kester

An Empirically Derived Basis for Calculating the Area, Rate, and Distribution of Water-drop Impingement on Airfoils

Data are presented showing the flight characteristics of a large airplane having a control-surface booster and mechanical feel device in the elevator-control system. The tests were made with various force gradients provided by the adjustable feel device. The booster was set to operate at a very high boost ratio throughout the tests so that the measured or apparent stick-free stability would be influenced only slightly by the aerodynamic hinge moments. The results show the effect of the feel device on the handling qualities of the test airplane and also the design features which should be incorporated in such feel devices.

Flight Investigation of a Mechanical Feel Device in an Irreversible Elevator Control System of a Large Airplane

B. Porter Brown

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