278
4:1
12:1
6:1
2:1
6:1
4:1
8:1
2:1
2:1
2:1
4:1
A
B
C
D
A
B
A
A
B
A
B
A
A
A
B
B
C
C
D
D
B
Cunninghams
8:1 Cascaded: The most basic 
cunningham is a self-cleating 8:1 
tackle positioned at the mastbase.
4:1 Cascaded: This simple 4:1 system leads aft 
to the cockpit. A favorite on small 
keelboats and daysailers. 
4:1 Double-ended Cascaded: This 
system is easy to adjust from the 
trapeze. It’s easy to rig and unrig. 
Popular on smaller beachcats.
6:1 Double-ended Jib Downhaul: Small boats like J/24s use a double-
ended genoa cunningham system to adjust draft from the weather rail.
(Looking 
forward)
12:1 Cascaded: This simple 2:1 
purchase is attached to a 6:1 
cascade for a 12:1 system. Used 
on larger racing and cruising boats.
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')
Diagram
Small Boat
Midrange
Big Boat
Ref.
Description
Part No.
Part No.
Part No.
4:1 Cascaded
A
Single
2146
2148
—
B
Stand-up
349
2652
—
C
Cheek
350
2644
—
D
Cam cleat
470
458
—
8:1 Cascaded
A
Fiddle
244
2655
2621
B
Fiddle
245
2658
2624
4:1 Double-Ended Cascaded
A
Single
348
—
—
B
Pivoting lead
395
—
—
C
Cheek
233
—
—
12:1 Cascaded
A
Triple
344
2640
2640
B
Triple
347
2648
2648
6:1 Double-Ended Jib Downhaul
A
Single
2146
2149
2152
B
Cheek
350
2644
2606
C
Cam cleat
468
150
150
D
Bullseye
339
339
237
Part numbers represent hardware most commonly used.

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