Identification of T-2 Aerodynamic Derivatives from Flight Data
SYSTEMS CONTROL INC (VT) PALO ALTO CA
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This report presents the stability and control derivatives of a low speed Navy trainer aircraft, the T-2B, as determined from flight test data. The maximum likelihood method is used for the estimation of the aerodynamic derivatives, instrument biases and random errors, and gust effects. The two flight conditions considered are a low speed, gear down, flaps deflected, sea level, and b high speed, gear and flaps up, 10,000 feet altitude. It is shown that it is necessary to include control input bias and in some cases gust effects to get reliable results. Techniques for handling input bias and random noise in input measurement are given. The identified models in each case are verified through several prediction runs.
- Training Aircraft