ProkhoroVj Treshchevsky ,and Volkov 



fj 



CI 



2,0- 

 iD- 



Stafite tea ion 



0,01 



0.02 5 



Figure 9 Influence of the relative air flow rate upon the longitu- 

 dinal stability of motion ( Fr - onset of plough-in 

 of the flexible skirt) for two positions of the center of 

 gravity along the model length (wave length A = 3. 1 m 

 wave height h= 0.08 m; G = 80 kg; K =1. 25) 



o o o 



M 



GL 



= 0. 012 



M 



GL 



= 0. 019 



2 82 



