The cunningham controls the fore and aft position of draft in the mainsail or genoa and works together with the traveler, mainsheet, outhaul and vang to optimize sail shape and increase boatspeed. Cunningham controls lead to the crew to encourage adjustment as wind speed changes.
Typical Boat Length:
Small Boat: 22' - 28' (6.7 - 8.5 m)
Midrange: 29' - 34' (8.8 - 10.4 m)
Big Boat: 35' - 42' (10.7 - 12.8 m)
This simple 4:1 system leads aft to the cockpit. A favorite on small keelboats and daysailers.
The most basic cunningham is a self-cleating 4:1 tackle positioned at the mastbase.
This system is easy to adjust from the trapeze. It’s easy to rig and unrig. Popular on smaller beach cats.
This simple 2:1 purchase is attached to a 6:1 cascade for a 12:1 system. Used on larger racing and cruising boats.