of a single HDPE gravity cylindrical cage wereperimeter and a ss = 1/2. out Ocean Engineering Basin of Institute of Industrial Science of the Tokyo geometrically similar to the proto type. The horizontal projections of the front mooring lines in the same direction of current or incident waves. Uniform current /s Regular waves with a period and a height Under the actions of current only, the tension in the front mooring lines wavethe tension in the rear mooring lines was greater than that in the front mooring liness deduced. It turnwaC₁ and are constants). (3) Under currentagain greater than and are constants).