CONTENTSTART

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.

Buy Now

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.

Headsails

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.

Choose a Team Member

Travis Odenbach

Travis Odenbach brings extensive one-design racing and sailmaking experience to his role as North American One Design Director at Quantum Sails. A native of Rochester, New York, Travis began sailing at age six through the Rochester Yacht Club junior program, progressing from Optis and 420s to Lasers before moving into high-level keelboat racing.

A longtime competitor and class specialist, Travis has built his reputation in one-design racing with particular focus on the J/70, J/24, and J/22 classes, while also competing in boats ranging from Melges 15s to Cape 31s and J/111s. His early years racing the Great Lakes regatta circuit and sailing in Newport's legendary J/24 Fleet 50 gave him the opportunity to compete alongside many of the top sailors in the sport and helped shape the technical and competitive approach he brings to every program.

Travis' accomplishments on the racecourse include winning the J/24 North American Championship and earning multiple podium finishes at J/24 Nationals, North Americans, and World Championships. In the J/22 class, he has posted multiple top-five finishes at both World and North American Championships, while also contributing to three Beneteau First 36.7 North American Championship victories. In 2024, Travis was recognized as a finalist for US Sailing’s Rolex Yachtsman of the Year Award.

His sailmaking career has included roles with Waterline Systems, North Sails, Haarstick Sailmakers, and Quantum Sails, where he developed deep expertise in one-design sail development, construction, cloth testing, and performance consulting. After Haarstick joined Quantum in 2015, Travis became heavily involved in Quantum’s one-design programs, serving as a class coordinator for the J/24 and J/22 classes and working closely with sailors across North America and around the world.

Travis looks forward to helping sailors maximize performance on the racecourse while continuing to strengthen Quantum’s leadership across the one-design community.

Basic info
  • Nationality: USA
  • Position: North American One Design Director
Career highlights
  • J/24 World Champion- 2024
  • J/22 World Champion -2024
  • J/24 North American Champion -2024
  • J/24 US Nationals Champion -2024
  • J/24 North American Champion-2022
  • J/24 North American Champion -2011
  • J/70 North American Championship 2024 -2nd place
  • J/70 Bacardi Cup Invitational 2020-1st
  • Offshore races- Chicago Mac, Trans Superior Race, Bayview Mac, Annapolis to Newport.
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.

Basic info
  • Nationality: USA
  • Position: Executive Vice President
  • Current Town: Seabrook
Career highlights
  • Annapolis-Newport
  • Newport-Bermuda
  • One Design 35 Circuit
  • Trans Pac
  • Kenwood Cup
  • San Francisco Big Boat Series
  • Maxi Boat World Championship
  • One Ton Worlds
  • Ultimate 30 Pro Series
  • One Ton North Americans
  • MORC Internationals
  • Japan Cup
  • Geelong Race Week
  • Block Island Race Week
  • World Match Racing Series
  • Whitby Island Race Week
  • Farr 40 AC Trails
  • J-109 NA Champion
  • TP 52 Windquest
  • Chicago and Port Huron to Mac
  • Hamilton Island Race Week
George Szabo

George grew up in San Diego racing Stars, Lasers and Snipes. As a kid, he made sails for his model boats before eventually taking a part-time job with Quantum during high school and college. He came on full-time in 1993 as a sailmaker and designer.

Using the latest computer design programs, George is able to create the fastest, most efficient sails for smaller One Design boats. This technology, combined with his intimate understanding of One Design sailing, allows him to create the most versatile sails available. The San Diego loft designs a variety of One Design sails, including Thistle and Lido 14, but their specialties are Olympic Class Star and Snipe boats.

George is the 2009 Star World Champion, as well as an 21-time National/North American Champion. In addition to his sail-making abilities and wins, he is also an accomplished keelboat tactician and trimmer.

Basic info
  • Nationality: USA
  • Position: Sail and Design Consultant
  • Current Town: San Diego
Career highlights
  • 2011 Star North American Champion
  • 2010 Star North American Champion
  • 2009 Star World Champion
  • 2005 Star North American Champion
  • 2005 Snipe National Champion
  • 2001 Star North American Champion
  • 2000 Snipe North American Champion
  • 2000 Snipe National Champion
  • 1999 Snipe North American Champion
  • 1999 Snipe National Champion
  • 1998 Snipe North American Champion
  • 1998 Snipe National Champion
  • 1997 Snipe North American Champion
  • 1997 Snipe National Champion
Date Regatta Result
CONTENTEND