Wind-tunnel Investigations on Flexural-torsional Wing Flutter (1938)
NASA Technical Reports Server (NTRS) · leaf 17
N. A, C. A. Technical Memorandum No* 877 Figs. 8,9.10.11 £5 V 20 %~ > Computed -Undamped Damped ] ^Tr~^li0nal Center irregular of gravid position Elastic radius 0,1 Radius of gi rat ion i2 Frequency Figure 8,- comparison between Figure 9.- Comparison between compu- computation and test. tation and… … Figure 10.- Radii of gyration greater (21/25/6). than in fig. 9 (series 21/25/4),
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