Problems of Commercial Hydrofoils 239 
Wave L/H = 15,7 
Wave slope d= 11,30° 
(= foil - distance 
Fig. 6. Influence of the Froude number on vertical accelerations 
Wg 
08 lien 
07 - | 
| 
06 7 
05 
04 
° 7 | 
a [ 
a 
164-1 Pa 
04+, — 
ps 
07 cai —+—— 
0 
15 50 100 200 300 400 500600 ft 
Fig. 7. Influence of the wavelength on vertical accelerations 
