Viper 640

A perfect blend of a high-performance dinghy and a balanced, steady keel boat, the Viper 640 is gaining traction around the country and the globe. Its growth is no surprise: Racing a Viper 640 is close, fast, and fun. Utilizing the benefits of one-design racing in a nimble and lightweight package that is welcoming for all sailors. Quantum handles the marginal gains with the most highly tuned sails to match this exciting boat. Our tuning guide will get you started on becoming the sailor you want to be.

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Viper 640 Mainsails

Viper 640 Mainsail - Polyester

Visually pleasing and high performing, the Fusion X Polyester Mainsail injects the maximum amount of power into the Viper 640 while being easy to control. Dimension Polyant fabric makes the Fusion X a high-strength sail, and a radial cut for strength, stretch resistance, and longevity makes this mainsail the ultimate choice for the Viper 640.

INCLUDES: Sail turtle bag, RBS battens.

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Viper 640 Headsails

Viper 640 Spinnakers

Viper 640 Asymmetrical Spinnaker

We've worked closely with our Melges team to design a kite that can handle the demands of a high-performance one-design fleet. We've added shape in the head of the spinnaker to help the boat sail lower and faster off the breeze while still being able to roll over the crowd. Described as the ultimate spinnaker in this class, the R2, made with Dynakote 75, is the largest, lightest sail that gives sailors the widest range of sailing angles so they can sail the race they want.

INCLUDES: Sail bag.

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Farley Fontenot

Farley is a lifelong, world-class sailor with more than 30 years of experience as one of the world’s top sailmakers and yacht racers. In 1985, Farley teamed up with John Kolius and started UK Sails Texas. The loft became the premier sail maker on the Gulf Coast and gained international recognition for its success in Grand Prix events. In 1996, Farley co-founded Quantum Sails and now serves as Executive Vice President.

Among his many accomplishments, Farley is a two-time member of the J/24 world championship team and has sailed aboard the winner of the Southern Ocean Racing Conference, the International 50’ class world champion, and the One Design 48 circuit season champion. He and Kolius teamed up again on the water and have won the J/80 North Americans, taking second at the J/80 Worlds.

Farley coaches many Melges 32 teams, races on RP 86 Windquest, and races his own Viper 640.