(1) Spider Web Mooring. The container is attached to several mooring cables that radiate to anchors placed around it to form a web. The container must be buoyant so that it lifts the cables for enough off the bottom to be readily secured by grappling. The site must be located exactly at the time of emplacement by visual sightings to fixed landmarks in the water, or along the shore, using several FRP's to establish a point where two sighted lines intersect. For recovery, the site is located b y taking sightings on the reference points, when a mooring cable is engaged by dragging the bottom of diving. This method of mooring is most difficult for recovery. It can be used only where the bottom is smooth and firm enough for dragging, or where the water is not too deep, cold, or murky for diving.
(1) Spider Web Mooring. The container is attached to several mooring cables that radiate to anchors <br>placed around it to form a web. The container must be buoyant so that it lifts the cables for enough off the <br>bottom to be readily secured by grappling. The site must be located exactly at the time of emplacement by <br>visual sightings to fixed landmarks in the water, or along the shore, using several FRP's to establish a point <br>where two sighted lines intersect. For recovery, the site is located b y taking sightings on the reference <br>points, when a mooring cable is engaged by dragging the bottom of diving. This method of mooring is most <br>difficult for recovery. It can be used only where the bottom is smooth and firm enough for dragging, or where <br>the water is not too deep, cold, or murky for diving.
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