An Introduction to the Problem of Wing Flutter

After defining wing flutter and analyzing the evidence accumulated as to the conditions under which it occurs, the author gives particulars of a study of the torsional oscillations of an airfoil, and of the position of the elastic axis and location of the center of mass of an airplane wing. He then discusses the aerodynamic considerations involved in the problem and the present status of the latter, and concludes with a brief discussion of the field of future investigation. The purpose of the paper is not to present any general solution for the problem, but to promote discussion as to rational methods of employing such data as are now or may be on hand with a view to formulating a sound basis for future design procedure.