Most one piece anchors use either a long curved shank or a roll bar to assist in rolling the anchor off its back. We tested these options with our own prototypes early in our R&D program. We found they added extra weight and resistance to its movement down into the sea bed. Prototypes with role bars had areas that became blocked with rocks, coral or mud that stopped the anchor from working and had to be cleared by hand. Cooper Anchors have now overcome these imperfections with the addition of a small blade.
The Small Blade completely eliminates the possibility of the anchor staying on its back by creating a new balance point. This new balance point enables a greater percentage of the anchors total weight to be exerted by the tip, onto the sea bed, causing the anchor to set quickly and more reliably. The small blade also provides additional surface area, and 15% more holding power. In addition the small blade assists in maintaining a perfect angle of attack as the anchor buries into the sea bed.
The Shank can now be made straight, shorter, lighter and thinner as a result of the new small blade. All of these improvements mean less resistance to the anchor moving down deeper into the sea bed. The shank is also mounted further forward on the main blade. The new forward position of the shank makes it easer to retrieve, and minimizes the chances of becoming permanently hooked on reefs. This new position eliminates the need for slotted attachment points that can cause the anchors to come out at times that are undesirable, for instance during changes of tide or wind direction, especially when boats are left anchored and unattended.
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