The Overall Design Of Aircraft Handling And Stability Characteristics Of Study

Introduce a format of the statistical curve fitted by multi-dimensions least square. In the stability and control performance based on geometry sizing study, some aerodynamic parameter is showed by statistical curve. With multi-dimensions least square method develop a mathematics model on statistical curve in this paper. Particularly in the developing airplane software process, estimating the aircraft aerodynamic derivatives can be more simply and quickly if use the mathematics model. Three examples for aerodynamic derivatives are given and a comparison among geometry sizing, computational fluid dynamics (CFD) and test data. The results show that the numerical calculation method based on geometry sizing is reasonable.