Part I. Possio's Derivative Theory for an Infinite Aerofoil Moving at Subsonic Speeds. The
derivative theory due to C. Possio for an infinite aerofoil moving at subsonic speeds is …

A number of calculations of bending-torsion wing flutter are made at two Mach numbers, m=
0 (incompressible case) and m= 0.7, and results are compared. The air forces employed for …

The vortex-lattice method of calculating flutter derivatives presented in this note is an
extension to higher frequencies of the work on stability derivatives reported in R. & M. 2922 …

SUMMARY A box method is developed for obtaining the generalized air forces on an
oscillating flexible wing in supersonic flow with both supersonic and subsonic edges …

Subsonic and supersonic flutter calculations have been made by the method of NACA
Research Memorandum L57L10 for 12 swept and unswept wings in order to evaluate the …

The solution is derived, in a convenient form for numerical evaluation, for a two-dimensional
aerofoil oscillating with arbitrary downwash at sonic speed, and is shown to be the limit of …

This repart gives tables of the two &mensional supersonic flutter derivatives for tiinitesiimlly t.
9. n aerofoils. Most of the vdlties given are based on the published work of several authors …

抄録 Theoretical and experimental investigation of" the flexure-torsion flutter of aerofoils in
cascade" are presented. In this first report are shown a computational method and computed …

Subsonic and supersonic flutter and divergence calculations have been made for five
unswept wings by several analytical methods. The results have been compared with …

The report discusses and interprets an extensive series of calculations on the bending-
torsion, bending-aileron and torsionaileron flutter properties of a typical-section airplane …