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A Scrape in the Dark - Tips to Anchoring

© Contributed by Bill Wallace

It is a horrible feeling to wake up at 3:00 am after spending the day on the water and finding a perfect anchoring spot, only to realize that the winds have picked up just a little bit and dragged your boat against another nearby boat, or worse, into the middle of a shipping lane, or onto rocks. Described here are some of the common causes of this problem, and some descriptions of how to avoid them. Equally annoying and embarrassing is anchoring your boat while going to supper or acquiring supplies and finding the boat gone when you return. Your immediate thought is that it has been stolen and so you call the police. If you are lucky, the boat is found an hour or two later drifting, the anchor still attached, but pulled up from it's original location.

Wind Dragged Boat or a Wind Direction Change

This can occur even if you have the right anchor type and size. All it takes is for the anchor to be set not quite perfectly or for the bottom to be poor. Then, a bit of wind will start dragging the anchor. Or, the wind will change direction, causing the anchor to become dislodged. You need to use two anchors set in a V shape at the front of the boat. Then, even if one drags, the other is still tight. If you expect a really bad storm, use three anchors set like a V with an extra line straight out front.

Tight Anchorage

There are degrees of tightness in anchoring. If you have room for the boat to swing around without hitting anything, then you can just use a two anchor V, where the angle between the two anchors is fairly large (between 140 and 180 degrees, closer to 180 for less movement, but requiring larger anchors). This keeps the bow in one place, but allows the stern to swing around, keeping the wind head on (this is usually more comfortable for sleeping.) However, if there isn't room to turn the boat around, either due to other boats, the shore or underwater objects, then you need to set a V anchor set at the front, and an additional anchor at the back. This keeps the boat stationary, but tends to be less comfortable. An alternative, if the wind is coming from the stern, is to put the V anchors at the stern and a single anchor at the front. Sometimes you can use trees on land as one of the anchors.

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