6 J. E. Blackham and M. S. Allen (a) Mode 1 - 66.55 Hz (b) Mode 2 - 116.26 Hz (c) Mode 3 - 223.14 Hz (d) Mode 4 - 223.79 Hz (e) Mode 5 - 267.88 Hz (f) Mode 6 - 307.58 Hz (g) Mode 7 - 387.83 Hz (h) Mode 8 - 430.17 Hz Fig. 7 First eight Mode Shapes of Frame and Wing Structure
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