"a 



NOTATION (Continued) 

 Towline weight per unit length in air 



X Axis of space-fixed orthogonal coordinate system positive in direc- 



tion of tow (negative in free-stream direction) 



Y Axis of space-fixed orthogonal coordinate system positive to star- 

 board 



Z Axis of space-fixed orthogonal coordinate system positive in the 



direction of gravity 



X', Y'5 Z' Intermediate coordinate system defined by a rotation of angle 3 

 about the X-axis 



Q Towline kite angle measured from the Z-axis to the tangent of a 



towline element projected onto the Y-Z plane 



V Fluid kinematic viscosity 



p Fluid density 



({) Towline angle measured from the free-stream direction (X-axis) to 



the tangent of a cable element 



viii 



