Doctors 



NOMENCLATURE 



c velocity of craft 



d water depth 



F Froude number = c/ \2ga 



F depth Froude number = c/ V gd 



d 



g acceleration due to gravity 



V2 2 

 w + u 



/ 2 



k fundamental wave number = g/c 



o 



L length of tank 



n, m indices for longitudinal and transverse wavenumbers in a tank 



p cushion pressure measured in the moving reference frame 



xyz 



p cushion pressure measured in the stationary frame £ yz 



p nominal cushion pressure 



o 



P, Q functions defined by Eq. (26) or (48) 



R wave resistance 



R wave resistance coefficient defined by Eq. (3 5) 



s distance travelled by craft 



S induced side force, or area of pressure distribution 



60 



