T&T: All chain rode scope question.
Ron Rogers
rcrogers6@kennett.net
Tue Aug 29 20:44:41 EDT 2006
>From a Don Casey article:
"Tests have shown that the correct size anchor of any reputable design
pulled horizontally, is more likely to hold than an oversize anchor pulled
upwards."
and
"In normal conditions, a safe minimum anchor scope ratio is 5 to 1 (warp or
chain length to depth). (In heavy weather 7 to 1 or more). Depth is the
depth of water at high tide, plus the height from water line to the bow
roller. Scope is the actual amount of anchor line paid out when the boat is
safely anchored. For example, if high water is 20ft deep and your bow roller
is 5ft above the water, you need 125ft (i.e. 5 times 20 + 5ft) of scope to
anchor.
Remember, putting out too little scope is one of the most common mistakes a
skipper makes when anchoring."
He is not making a distinction between rope and all chain.
Ron Rogers
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