Recently, a new composite four-seater aircraft was developed. As soon as the first prototype became available a Ground Vibration Test (GVT) was carried out. The aim of the GVT was to obtain an experimental structural dynamics model of the aircraft. Hereto, two shakers were exciting the aircraft with broadband noise, the Frequency Response Functions (FRFs) were computed from the force and acceleration signals and, finally, the aircraft modes were identified by applying the new PolyMAX modal parameter estimation method to the FRFs. Before performing flight tests, it is desired to predict analytically the flutter behaviour. Since no detailed Finite Element Model (FEM) of the aircraft was available, the experimental modal model from the GVT was used for this purpose.
