Marine & Nautical

Intermediate

Anchor Scope

Ratio of anchor rode paid out to water depth.

Formula

S = \frac{L}{d}

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Variables

SScope ratio

LRode length

dWater depth + freeboard

Example

70 m rode in 10 m depth: S = 7:1

Did You Know?

A scope of at least 5:1 keeps the pull horizontal so the anchor digs in rather than dragging.

marine anchor scope

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