The comparison (Appendix III) of cable configurations 

 resulting from application of the two theories ;, show that 

 the geometries of the cables differ but little ^ whereas 

 the tensions show significant variation. The surprising 

 agreement in geometries, as indicated by Figure III-l;, 

 indicates that Eames ' theory may be used to predict geome- 

 tries with fair accuracy, particularly for those situations 

 like the presently described sea trials in which the cable 

 does not depart significantly from the vertical. In Appendix 

 Ills it is shown that either theory predicts the same radius 

 of curvature of the cable near the depressor. If the system, 

 then^ performs in accordance with Whicker 's theory, the 

 geometry will be in substantial agreement with predictions 

 based on Eames' theory, but the measured tensions will be 

 noticeably lower. 



The limited results attained from the sea trials sub- 

 stantiate this hypotheses. As shown on Figure III-2, the 

 measured depth and cable angle correspond very well with 

 the predictions (based on Eames), and the measured tensions^ 

 shown on Figure III-3, are substantially lower than those 

 predicted. 



Unfortunately, due to an intermittent open in an electri- 

 cal lead in the cable^ only one reliable measurement of depth 

 was attained on a cable scope of sufficient length to yield 



Page III-4, the significant curves are those which illus- 

 trate variation of scope with towing speed. 



31 



