ANCHORING GUIDE · CALCULATOR
Muir Windlass Selection Tool
Selecting the correct anchor winch or windlass depends on vessel length, weight, and chain size. Choosing the wrong gear can lead to premature wear, poor performance, or even safety issues. Muir's Windlass Selection Tool calculates the right system for your vessel in seconds.
HOW IT WORKS
How the Windlass Selection Tool Works
The Windlass Selection Tool below uses your vessel length, chain standard, size, length, and anchor weight to determine total system load and recommend two suitable windlass options. Each option includes the required working load and compatible gypsy for your specific chain and anchor setup.
Option 1 — Closest Match
The first option is the closest match to your calculated working load — the standard recommendation for your current setup.
Option 2 — Extra Power
The second option offers additional power for heavy vessels — ideal if you need extra performance or plan to upgrade your chain length in future.
Planning to upgrade later? If you expect to add more chain or upgrade your anchor in future, enter those values now so the Windlass Selection Tool recommends a windlass with sufficient power for your desired setup.
Gypsies are chain-specific. While Muir offers a full range of gypsies, changing your chain type may require a new one. Even chains of the same nominal size can differ in standard or pitch — always confirm compatibility before purchasing to avoid unnecessary costs.
CALCULATE YOUR MATCH
Try the Windlass Selection Tool
Enter your vessel length, chain standard, size, length, and anchor weight below to calculate your required work load and see matching windlass models instantly.
Capstan
Vessel Size (m)Enter the size of your vessel to select the appropriate capstan.
Vertical Windlasses
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Horizontal Windlasses
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Capstans
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COMMON QUESTIONS
Windlass Selection Tool FAQs
What information do I need to use the Windlass Selection Tool?
Enter your vessel length, chain standard, chain size, chain length, and anchor weight. The tool calculates your total system load and recommends two suitable windlass options.
Why does the tool recommend two windlass options?
The first option is the closest match to your calculated working load. The second offers additional power for heavy vessels, or if you plan to upgrade your chain length in future.
Will any gypsy fit my chain?
No. Gypsies are specific to chain standards and dimensions. Even chains of the same nominal size can differ in standard or pitch, so always confirm compatibility before purchasing.
Should I size up if I plan to upgrade my anchor or chain later?
Yes. If you expect to add more chain or upgrade your anchor in future, enter those values now so the Windlass Selection Tool recommends a windlass with sufficient power for your desired setup.
Not Sure Which Result Fits?
Not sure which result the Windlass Selection Tool gave you, or want a second opinion? Contact the Muir team for personalised recommendations, dealer locations, and technical support.
REQUEST A QUOTE