LIGHTNING M-5 MAINSAIL Color:White The World Championship winning F-1

The World Championship winning F-1 mainsail is an all-purpose mainsail

The 3Di RAW mainsail is the perfect choice for A Scow sailors seeking a truly versatile and high-performance sail

Specifically designed for ILYA racing and winds up to 20 knots

and precision on the racecourse

LIGHTNING M-5 MAINSAIL Color:White The World Championship winning F-1Possibly the winningest mainsail in the history of the Lightning Class, the M 5 main is designed based on a tuning system which enables your team to "change gears" based on wind conditions and your sailing style by adjusting mast blocks and lowers tuning. The M5 setup allows more use of the backstay to control mainsail shape and headstay sag. Your rig can be set at a "base" setting for all purpose racing while also allowing tuning changes (between