The 2:1 outhaul system controls the shape of the foot of the main. Upwind, a tight outhaul flattens the foot. Loosening the outhaul increases the draft for light air or off wind sailing.
The 12:1 cascaded cunningham controls luff tension at the leading edge of the sail. Contained in a compact package inside the spar, the double-ended system allows crew to quickly power or depower the sail from the trapeze.
A 40 mm Carbo Ratchamatic® controls this powerful 8:1 system. The ratchet mechanism in the sheave automatically engages as loads increase. When eased, the ratchet automatically disengages, allowing unloaded sheets to run out instantly during mark roundings and jibes. The lower block rotates so the sheet follows the driver on both tacks.
The primary use of the mainsheet traveler is to de-power the boat when sailing downwind. This 2:1 system lets the car run downhill rapidly, but still has the muscle to haul the car to weather.
If you would like to link to or reprint this article please contact firstname.lastname@example.org