Modeling of VSTOL aircraft lift lose in hover based on system identification method

In this paper we provide a system identification method to model VSTOL aircraft lift lose in hover. Compared with the conventional empirical formula calculation method, this approach avoids the problem of determining mechanism parameters and without considering the change of nozzle pressure ratio. The whole identification system consists of six-component balance, strain gauge force sensors, flight control system and upper computer. Collecting the system input and output signals, the model of VSTOL aircraft lift lose in hover can be identified.