抄録
We have studied about the method for estimating control surfaces deflections δe, δa and δr from flight data. We called the newly developed algorithm as the “Modified Output Error Method.” Until now, we have succeeded in estimating lift coefficient CL, drag coefficient CD and three aerodynamic moment coefficients Cl,t, Cm,t, Cn,t, however, the estimation of control surface deflections were not implemented. In this paper, we introduced the “Yanagihara model” into our method, and by employing statistical procedures, we could estimate three control surface deflections δe, δa, δr fairly good.