What effect does lifting the shank of a Stockless anchor that is set on the bottom have?
• Stockless anchor design – how the shank and flukes are shaped to set and hold • How an anchor holds – flukes buried, chain lying on the bottom providing a low lead angle • Effect of changing the pull angle – what happens to flukes when the shank is lifted instead of pulled horizontally
• Picture the anchor already well set with the flukes buried. If you start lifting the shank, how does that change the angle of pull on the flukes? • Ask yourself: for a stockless anchor, does a more vertical pull tend to make the flukes dig in farther, pop out, or stay the same? • Think about the chain: if the shank (and thus the crown) comes up off the bottom, does that make it easier or harder for the chain to stay clear and aligned with the pull direction?
• Be clear on what a stockless anchor looks like (hinged flukes, no stock at right angles to the shank). • Visualize whether the flukes stay buried, dig deeper, or pivot out when the shank is raised toward vertical. • Consider whether a more vertical pull tends to increase holding power or tends to break the anchor out of the bottom.
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