INCOMPRESSIBLE FLUTTER CHARACTERISTICS OF REPRESENTATIVE AIRCRAFT WtNGS 1 By C. H. WILTS SUMMARY

The prwnt report gives the resu-h%oj a dgtaikd study of the flutter charadmktim ~four reprawntu$iveaircrajlm“ngs. Thti study was md using the ele~”a-ana.tog computer at the Cali-fornia Imtitut.e of Technology. During the cour8e of thti investigation ~“ght importunt paramet.em of each mung were varied and, in addition, the e$ea % of mass, inertia, pitching Spn”ng,and location of a CO?W8?UW&?d7nu88were inv~”gai.ed for alljour m“ngsand al severalsweepbackangles. The introduction of thiareport discuss ~ in general ternMtti jluti characteristics of airp.kuw. The second section con-tain8 a A.ww-ssionof the electric-analogprincipl ~ thd made a study of thi8 magnitti fem”ble. The third section contuirwa discussion of the amodynamic and structural appm”maiim madejor a“mplif~”ngti$utter anulyti of a m“~. Thefourth sectio