What is the term for the ratio of the length of anchor rode deployed to the distance from the bow to the bottom?

Study for the US Sailing Basic Keelboat Test. Enhance your sailing skills with flashcards and multiple-choice questions, each with hints and explanations. Prepare effectively for your exam!

Multiple Choice

What is the term for the ratio of the length of anchor rode deployed to the distance from the bow to the bottom?

Explanation:
The key idea here is how much anchor rode you let out compared to how deep the water is. That relationship is called the scope. Scope is the length of anchor rode deployed divided by the distance from the bow to the bottom (the water depth). A larger scope means the pull on the anchor is more horizontal, which generally improves holding power and reduces dragging in wind or current. In calm conditions, a scope of about 5:1 is common; in heavier weather, you might use 7:1 or more. The other terms don’t describe this ratio: draft is hull depth below the waterline, freeboard is the distance from waterline to the deck, and luff is a term used for the sail’s leading edge.

The key idea here is how much anchor rode you let out compared to how deep the water is. That relationship is called the scope. Scope is the length of anchor rode deployed divided by the distance from the bow to the bottom (the water depth). A larger scope means the pull on the anchor is more horizontal, which generally improves holding power and reduces dragging in wind or current. In calm conditions, a scope of about 5:1 is common; in heavier weather, you might use 7:1 or more. The other terms don’t describe this ratio: draft is hull depth below the waterline, freeboard is the distance from waterline to the deck, and luff is a term used for the sail’s leading edge.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy