296 Bulletin, Scripps Institution of Oceanography 
mooring for highest wind and current stress, and the stress is examined when the 
pennant is extended horizontally 20 per cent of Lo, as before. 
11) The lift induced by the pennant may now be entered into the calculation, if 
necessary. 
In the final design several additional requirements have been found advisable. 
Two provisions against failure of the submerged float are: (1) the surface float 
is given additional buoyancy adequate to support both the cable and the sub- 
merged float if water-filled, and (2) the main mooring cable is terminated at a 
distance above the anchor somewhat greater than the distance the submerged 
float would sink. In this lowest portion we use a suitable flexible wire rope, such 
as ¥4g-inch, 3 x 19 improved plow steel. Aireraft cord, which is more susceptible to 
kinking and abrasion, is not suitable. This is to prevent the brittle mooring wire 
from dragging on the bottom in the event of flooding of the submerged float. 
ACKNOWLEDGMENTS 
This work was undertaken by the Division of Marine Resources at the Scripps 
Institution of Oceanography and was supported by the Office of Naval Research, 
the Marine Life Research Program, and the Tuna Oceanography Research Pro- 
gram. Acknowledgment is also made to Cecil D. Jennings, Robert P. Huffer, Lewis 
W. Kidd, and Eskil Holt for their assistance in carrying out this development and 
for their many contributions. The Marine Life Research Program is part of the 
California Cooperative Fisheries Investigations, sponsored by the Marine Research 
Committee of the State of California. 
