Flutter of Flexible Hydrofoil Struts 



1.0 



-1.0 



30 



Figure 17a. Damping ratio £ 



10 15 20 



Speed in Knots 



Figure 17b. Frequency 



25 



Figure 17. Hydroelastic mode characteristics for strut of 



Reference 2 with pod and foils (Three-dimensional loading 

 calculation 



385 



