This paper has been prepared for the benefit of the leisure boating industry - principally cruising yachtsmen. The same principles expounded apply to the anchoring of floating marinas. Marinas are permanent structures where seabed conditions are properly surveyed and appropriate moorings laid down with lighters and derricks. The parameters in my nomogram still apply but, for interest the following special circumstances must be considered. Wind loading is not calculated so much on the marina itself, as on the vessels that can be berthed and tied to it, broadside to the wind.
Wind loading is therefore greater than that of a vessel riding at anchor.
Rodes of heavy ground chain and lighter top chain contribute greatly to anchoring capacity. The anchors can be buried in the seabed with mechanical equipment and divers thereby improving the efficiency of holding power by a factor of up to 10 times. I would like to take this opportunity now to introduce a new type of anchor I have developed. It is called the Flook and is a Flying Anchor capable of self deployment. 50ft for every 10ft of depth.