194 A. Hadjidakis 
= 
—<-—~ <GRITICAL CON- 
DITIONS IF y20 
“4 or Pra l9 
Laer Ce w 0.45 
Fig. 3. Wave characteristics as shown in Figs. 1 and 2 (a list of symbols is given at the end 
of the paper) 
THE HYDROFOIL CRAFT 
The seaworthiness of a craft might be specified as a combination of characteristics 
which guarantee safety and comfort for passengers and crew while traveling at sea. Some 
of those characteristics are: static stability, dynamic stability, constructional properties, 
proper means of navigation, and lifesaving equipment. Variation of size of a certain type 
