COMPUTED LATERAL POWER SPECTRAL DENSITY RESPONSE OF CONVENTIONAL AND STOL AIRPLANES TO RANDOM ATMOSPHERIC TURBULENCE

摘要

A method of computing the power spectral densities of the lateral response of airplanes to random atmospheric turbulence has been adapted to an electronic digital computer. By use of this program, the power spectral densities of the lateral roll, yaw, and sideslip angular displacement of several conventional and STOL airplanes were computed. The results showed that for the conventional airplanes, the roll response was more prominent than that for yaw or sideslip response. For the STOL airplanes, on the other hand, the yaw and side slip responses were larger than the roll response. The response frequency of the STOL air planes generally was higher than that for the conventional airplanes. This combination of greater sensitivity of the STOL airplanes in yaw and sideslip and the frequency at which they occur could be a factor causing the poor riding qualities of this class of airplanes.