Subsonic and supersonic flutter and divergence calculations have been made for five unswept wings by several analytical methods. The results have been com¬pared with experimental flutter data in order to evaluate each method of pre¬dicting aeroelastic instabilities, particularly in the high subsonic and low supersonic to hypersonic ranges.nFor the subsonic range, the methods examined included a modified strip anal¬ysis, two-dimensional loading modified to account for finite planform, and the subsonic kernel function. These methods all appeared to predict flutter speeds satisfactorily for Mach numbers below about 0.75 but, in the high subsonic range, the kernel-function method produced best agreement with experiment.
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