2 1.6 



£ '5 



2 1.4 



I 



Behavior of Unusual Ship Forms 



0.2 



~T 



o 



o 



-O- 



o^ 



oo 



FROUDE NUMBER 

 0.4 0.6 



0.8 



10 



20 30 



SHIP SPEED, KNOTS 



40 



50 



Fig. 5 - Pitch and heave equilibrium attitudes calm water 

 (hydrofoil semi-submarine) 



723 



