Some key issues of aircraft T-Tail flutter calculation

The flutter calculation method for convensional aircraft tail wing can not be used directly to T-tail flutter analysis due to T-Tail features in structural and aerodynamic configurations, and the effects of in-plane motion and steady aerodynamic force of horizontal plane must be considered in T-tail flutter calculation. From the view point of engineering analysis for T-tail flutter, some key issues of T-tail flutter calculation were discussed here, the characteristics of T-tail flutter problem and the key parameters affecting T-tail flutter properties were described. Especially, four methods to correct aerodynamic force of T-tail in its flutter calculation were introduced and finally some specific problems to be noticed in T-tail flutter analysis were presented.