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SELECTION GUIDE

Five Harken cunningham layouts – 4:1, 8:1, 12:1 cascades and double-ended systems – with the block and cleat part numbers for small, midrange and big boats.

DocumentHarken Cunningham System Selection Guide
FormatPDF · 1 page · 2.2 MB
LanguageEnglish
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Boat SizeSystems & PartsDiagramsProducts
Harken Cunningham System Selection Guide

Pick Your Column

Category Typical boat length
Small Boat 6.7–8.5 m (22–28')
Midrange 8.8–10.4 m (29–34')
Big Boat 10.7–12.8 m (35–42')

Part numbers are the hardware most commonly used; letters A–D match the diagrams.

Systems & Part Numbers

4:1 Cascaded

Simple 4:1 led aft to the cockpit; a favourite on small keelboats and daysailers.

Ref. Description Small Boat Midrange Big Boat
A Single 2146 → 2148 → —
B Stand-up 349 → 2652 → —
C Cheek 350 → 2644 → —
D Cam cleat 470 → 458 → —

8:1 Cascaded

The most basic cunningham: a self-cleating 8:1 tackle at the mast base.

Ref. Description Small Boat Midrange Big Boat
A Fiddle 244 → 2655 → 2621 →
B Fiddle 245 → 2658 → 2624 →

4:1 Double-Ended Cascaded

Easy to adjust from the trapeze, easy to rig and unrig; popular on smaller beachcats.

Ref. Description Small Boat Midrange Big Boat
A Single 348 → — —
B Pivoting lead 395 → — —
C Cheek 233 → — —

12:1 Cascaded

A 2:1 purchase attached to a 6:1 cascade; used on larger racing and cruising boats.

Ref. Description Small Boat Midrange Big Boat
A Triple 344 → 2640 → 2640 →
B Triple 347 → 2648 → 2648 →

6:1 Double-Ended Jib Downhaul

Double-ended genoa cunningham to adjust draft from the weather rail (e.g. J/24).

Ref. Description Small Boat Midrange Big Boat
A Single 2146 → 2149 → 2152 →
B Cheek 350 → 2644 → 2606 →
C Cam cleat 468 → 150 → 150 →
D Bullseye 339 → 339 → 237 →

Rigging Diagrams

Harken cunningham system diagrams

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.

Products in this Selection Guide