A comparison of the experiment has been made with theory, with various assumptions regarding the air forces being used. The experimental trend of the flutter-speed coefficient to increase as the unswept wings were moved rearward was also obtained from the analysis. It was found that taking account of finite span effects gave better agreement between exper-iment and theory than did the use of two-dimensional air forces. The experimental and calculated frequencies of flutter when referred to the natural deformation frequencies of the wing were of the same order of magnitude.
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