Measurements of the Pressure Distribution on the Horizontal-Tail Surface of a Typical Propeller-Driven Pursuit Airplane in Flight. 3. Tail Loads in Abrupt Pull-Up Push-Down Maneuvers

摘要

The total horizontal-tail load and the root bending moment increments calculated by the use of existing rational procedures are compared with experimental values obtained in pull-up push-down maneuvers on a representative propeller-driven pursuit-type airplane for six different combinations of power, indicated airspeed, and pressure altitude. The computed loads were determined for the experimental elevator motions, and for two estimated linear design motions. There is also presented a comparison between the computed and the experimental load distributions. Briefly touched upon are two abbreviated static methods for predicting the maximum up-loads in pull-up push-down maneuvers.