About Us

About Quantum Sails

At Quantum, we’re connected to sailors everywhere through our love of sailing and our belief that facing every challenge head-on is infinitely rewarding.

For us, that means challenging convention – especially if that’s what it takes to help our customers and the sailing industry get to new, better places. As a company and as individuals, we embrace every single challenge you bring our way as our own. 

Since 1996, we have focused on providing the best-performing products in sailing. Today, we’re equally relentless about delivering a higher standard of service, customer care, education, support and mentorship. It’s how we’ll continue to help sailors at all levels pursue their passions and achieve their aspirations. 

Our commitment starts with our dedicated employees at more than 60 sail lofts around the world and includes hundreds more working behind the scenes to design, build and service Quantum® sails.

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Sail Design & Technology

Quantum has taken the art and science of sailmaking to the highest level to produce the most efficient and fastest sail shapes possible. Quantum’s proprietary iQ Technology® system was created by experts with over 20 years of knowledge and expertise in both sailing and the complexities of engineered structures. The computational tool set of iQ Technology® is used by our experienced designers to perform virtual testing and complex analysis of aerodynamic performance and determine the ideal structural requirements of each sail. 

Integrating state-of-the-art sail design and manufacturing methods with on-the-water-testing, Quantum® sails are perfected to offer sailors of all levels outstanding performance, consistency and repeatability.

Meet Quantum's sail designers by choosing from the menu below. 



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David Armitage grew up around sails, with a father who earned a degree in naval architecture and an uncle who worked for Hood Yacht Systems. “We were very into boats and how to make them go faster,” he said. Designing sails and the creative process grabbed David’s attention, so he went to work for a local sailmaker during school holidays. It didn’t take long for him to realize it was what he wanted to do for a living.

The creative process is David’s favorite part of designing sails. “Being able to design a sail and modeling it in a virtual world is amazing,” he said. “Then going out on the boat and seeing it react in the same manner as it did in the virtual environment is incredible, and a real testament to the tools we’ve been able to develop to achieve this.”

A member of the Quantum Sails design team since 2002, David’s notable career includes a diverse list of accomplishments. He has extensive Grand Prix experience, having participated as a sailmaker, sail coordinator, and trimmer in both the America’s Cup and Whitbread/Volvo Round the World Race. He’s also been part of the design team that led Quantum’s highly successful TP 52 team to several world championships and many Super Series wins. He also continues to lead development in the highly competitive Farr 40 class. David has designed everything from One Design dinghy sails all the way up to superyachts.

Originally from New Zealand, David currently resides in Portsmouth, Rhode Island with his family.

  • Nationality: USA
  • Position: Sail Designer
  • Current Town: Newport

Jordi Calafat started sailing in 1980, and, in just three years, he won the Optimist World Championship. A naturally talented sailor, his success continued when he won the 1985 420 Junior World Championship, placed second at the 470 Worlds in 1989 and 1990, then took sixth at the 1991 470 Worlds. The lower finish didn’t deter him, however; it inspired him. In 1992, Jordi won a gold medal in the 470 class at the 1992 Summer Olympics in Barcelona. He also holds several world and European titles in various sailing classes and keel yachts.

The more Jordi sailed, the more hands-on he became. In 1989, he started designing sails. A Grand Prix and high-end sail design specialist with Quantum Sails, Jordi designs sails, provides technical support to the Quantum sales teams, and contributes to the development of Quantum’s iQ Technology™ suite of computational tools. Jordi's distinguished career makes him an ideal candidate for working with quality control managers in establishing standards for big boat and Grand Prix sail programs. Jordi serves as strategist for the Quantum Racing team and contributes to the Grand Prix sail designs for the team.

  • Nationality: Spain
  • Position: Sail Design Consultant
  • Current Town: Barcelona

Spanish, English

Career highlights
  • 2011-12 Volvo Ocean Race, Telefonica
  • 2008-9 Volvo Ocean Race, Telefonica Blue
  • 2007 America's Cup Winner, Alinghi
  • 1993 World Champion, 470 Class
  • 1992 Olympic Gold medal, 470 Class
  • 1992 World Champion, 470 Class
  • 1983 World Champion, Optimist
  • Several world championships in dinghies, Olympic classes and keel boats

Brett Jones started sailing with his father when he was five years old. Without high school racing teams, Brett competed at local clubs in Sydney, Australia racing year round. Sailing a variety of boats, including cherubs, skiffs, and eventually keel boats, he raced every weekend until he left school.

After graduating high school, Brett learned to be a sail maker and continued to race on the weekends. One of his employers owned an ocean racing boat and invited Brett to join him. One thing led to another, and Brett found himself in the United States and Europe meeting people and competing. His experiences eventually landed him a spot on his first America’s Cup team.

After the 2007 America’s Cup, Brett decided to expand his experiences even further to make himself a more valuable member of the team. “In the America’s Cup, if you’re just a sailor you limit yourself,” he said. “I had done a lot of development with sail designers, and I thought I could increase my value by having that skill set.” Quantum Sails approached Brett about designing with them, and he joined the team in 2008.

Having sailed in several America’s Cups and all the classic yacht races, Brett brought his own unique blend of sailing and design experience to the Quantum design team. Working mostly with Soto 40, RC 44, TP 52, IRC classes and various yachts, the combined experiences of Brett and the Quantum team make it possible to provide all of his customers with the best service and sails. “We’re one of the more open design groups,” he said. “We feed off each other and keep things open. We share designs and information that we can then share with the customers. This helps us influence the sail design and performance of boats to better help our customers.”

  • Nationality: USA
  • Position: Sail Design, Downwind Trimmer
  • Home Town: Sydney, Australia
  • Current Town: Ft. Lauderdale, Florida


Career highlights
  • 2016 52 Super Series Champion, Quantum Racing
  • 2015 52 Super Series, Quantum Racing
  • 2014 52 Super Series Champion, Quantum Racing
  • 2014 TP52 World Champion, Quantum Racing
  • 2013 52 Super Series Champion, Quantum Racing
  • 2012 52 Super Series, Quantum Racing
  • 2011 TP52 World Champion, Quantum Racing
  • 2011 MedCup Champion, Quantum Racing
  • 2010 TP52 World Champion, Quantum Racing
  • 2010 MedCup, Quantum Racing
  • 2009 MedCup, Quantum Racing
  • 2008 TP52 World Champion, Quantum Racing
  • 2008 MedCup Champion, Quantum Racing
  • 2007 America’s Cup, Shosholoza
  • 2003 America’s Cup, BMW Oracle Racing
  • 2000 America’s Cup, Abracadabra
  • 1995 America’s Cup, Australian Challenge

A naval architect and aerodynamicist with more than 30 years of experience, Robert Ranzenbach, Ph.D. joined Quantum Sail Design Group in 2015 as Vice President of Engineering and Design. Responsible for planning and coordinating new product development, he also manages the company’s research, development, and design teams.

A graduate of Webb Institute and the University of Maryland, Dr. Ranzenbach’s experience includes:

• Focusing on the advancement of high-speed yachts as Research and Development Director at Donald L. Blount & Associates.
• Developing the first experimental off-wind sail evaluation in the U.S. and studying off-wind sail performance for the Whitbread/Volvo, America’s Cup, and other record-breaking monohulls.
• Technical Director for Quantum Sails, 1999-2005, developing, planning, and supervising Quantum’s technology research and development program.

An avid sailor, Dr. Ranzenbach enjoys inshore racing, most recently on the One Design C&C 30. As a navigator, he’s helped teams reach the podium in classic distant races, including the Newport-Bermuda, Annapolis-Newport, Chicago-Mackinac, and Marblehead-Halifax.

Dr. Ranzenbach presently serves on the Editorial Review Board for the SNAME Journal of Sailboat Technology and is an Advisory Board Member of the Sailing Yacht Research Foundation.

  • Nationality: USA
  • Position: Ph.D., VP of Engineering & Design
  • Current Town: Annapolis

Growing up in the British Virgin Islands, Doug Stewart started sailing when he was four years old. He and his friends started on Sunfish, graduating to Lasers and Squibs as they grew up. Through the years, he went on to win every major regatta in the Caribbean, including the BVI Spring Regatta, the Rolex Caribbean Regatta and Antigua Race Week. After graduating from high school in 1981, Doug went to work with sailmaker Ted Hood. It didn’t take long for him to discover that sailmaking was something was something he wanted to do for a living. “Making something from a roll of fabric and a pair of scissors is pretty cool,” said Doug. “I found it easy to understand, and easy to teach others.” Doug was part of the team that started Quantum Sails, and has been with them ever since. His design experience includes Melges 20, Melges 24, Megles 32, Lightning, Escows, Interlakes, cruising boats, mega yachts, and catamarans. The passion of the Quantum team continues to invigorate Doug, and he enjoys interacting with customers on a daily basis. Having started as a sailmaker before computers and cutting machines, Doug said his unique understanding and experience helps him provide the best service to his customers. “They can expect me to listen first then advise them,” said Doug. “I understand all aspects of sailing, sailmaking, and sailing systems, so I usually have a solution if my customers have problems.”

  • Nationality: USA
  • Position: VP Product Integration/Designer
  • Current Town: Annapolis


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.

  • Nationality: USA
  • Position: Sail 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

In 1982, A. Kaan Is and his friends were about to enter their last year of tennis school when a new sailing school opened nearby. He followed his friends to the sailing program so they could stick together, but it didn’t take long for Kaan to catch the sailing bug. “The wind and water are the best of nature’s forces,” he said. “I loved the sound of the wind and waves crashing on the bow.”

Kaan wanted to be part of the sailing industry. Without any formal sailboat design education, he took a job doing sail repair at a local loft in 1993. By the end of the first year he was making his own sails by hand. “I had to design them on paper and cut them on the floor,” said Kaan. “It was hard work, but I liked it.”

From 2001-2008, he managed production and design for all UK Sails in Turkey. In 2009, he joined the Quantum team. “Smiling faces are the most important thing in my life, and I found the same positive energy at Quantum Sails,” said Kaan. An experienced IRC racer, Kaan focuses his sail designs on cruising and IRC sails, playing with the numbers for optimization.

“I love creating a racing team for my customers and coaching them on the water,” he said. “These types of projects are special because you’re winning new friends and meeting new faces to say hello to on the sea.”

  • Nationality: Turkey
  • Position: Loft Manager/Sailmaker/Designer

Turkish, English

Ben Kelly started sailing 20 years ago at the club, state and national levels, enjoying success in various dinghy and skiff classes. Over the years he explored a wide range of boats, but his passion became multihull sailing. A competitive sailor, he was a member of the crew for eight national multihull titles, holds four distance race records, and has won several regattas. The highlight of his sailing career came when he joined the crew of the Orma 60 Trimaran Team Australia, setting a WSSR record from Sydney to Auckland in 2013.

An experienced sailmaker, Ben started his own sailmaking business in 2004 and joined the team at Quantum Australia in 2012. With a passion for sail design and engineering, he enjoys his work with Quantum Sails’ design team, saying “Quantum’s transparency and the combined knowledge base of our group is a fantastic tool for achieving great results for my customers.”

  • Nationality: Australia
  • Position: Director of Sales and Design
  • Current Town: Brisbane


Career highlights
  • 2001 Multihull Rendevous Regatta – 1st OMR, Trilogy
  • 2001 Southern Ocean Multihull Regatta – 1st, Trilogy
  • 2001 Victorian Trailerable Multihull Championships – 1st, Trilogy
  • 2001 National Multihull Championships – 1st, Trilogy
  • 2002 Hogsbreath Regatta – 1st, Trilogy
  • 2002/2005 Australian Trailerable Multihull Championships – 1st, Trilogy
  • 2002 Lock Crowther Memorial Regatta – 1st, Trilogy
  • 2002 Australian Multihull Offshore Championships – 1st, Trilogy
  • 2003-2009, 2011 Airlie Beach Race Week – 1st OMR, Trilogy
  • 2003-04, 2006, 2008-09, 2011 Multihull OMR National Titles – 1st OMR,
  • Trilogy
  • 2003 Queensland Multihull Championships – 1st, Trilogy
  • 2003 Bay to Bay Race – 1st, Trilogy
  • 2004/2009 Surf to City Race – 1st, Trilogy
  • 2004 SORC Series Overall Mooloolaba -1st, Trilogy
  • 2004-2006 St. Helena Cup – 1st OMR, Trilogy
  • 2005-2006 Gilligan's Island Ocean Race – 1st OMR, Trilogy
  • 2007 Multihull OMR National & State Titles - 2nd OMR, Trilogy
  • 2007 Kingfisher Day/Night series – 1st OMR, Trilogy
  • 2008 Three Peaks Race – 2nd, XS
  • 2008 Sydney to Hobart – 2nd IRC Division 4, Spirit of Koomooloo
  • 2009 Bay to Bay – 1st, Mad Max
  • 2009-2010 Lock Crowther – 1st OMR & PHF, Indian Chief
  • 2009 IRC State Titles – 1st IRC, Spirit of Koomooloo
  • 2010 Multihull OMR Nationals –1st, Trimaran Voodoo Spirit
  • 2010 Bay to Bay – 1st OMR, AYS Raider
  • 2010 Qld Multihull State Titles – 1st, Trimaran Moving Finger
  • 2010 New Zealand Classic Yacht Series – 1st, Wraith Of Odin
  • 2012 Oceanbridge Auckland Anniversary Regatta Race – 1st, Wraith of Odin
  • 2011 Bay to Bay – 1st line honours, Mad Max
  • 2012 Multihull OMR National Title – 2nd, Mad Max
  • 2012-2014 Lock Crowther Regatta – 2nd OMR, Indian Chief
  • 2013 Sydney to Auckland – World Record Passage, ORMA 60 Team Australia
  • 2013 Lincoln Week – 1st OMR, Wilparina 2
  • 2014 Sydney to Mooloolaba Race – 1st OMR, ORMA 60 Team Australia
  • 2014 Bay to Bay Race -1st Line Honours, Handicap, and OMR, Mad Max 2014 Pittwater to Coffs Race – 3rd, Indian Chief
  • 2014 Wangi Regatta – 1st OMR, Carbon Credits (helmsman)
  • 2015 King of the Gulf – 2nd OMR, Carbon Credits
  • 2015 Hamilton Island Race Week ¬– 1st Line Honours, Mad Max
  • 2015 Surf to City Yacht Race – 2nd Line Honours, Turning Point

Adrien de Belloy a commencé la voile à 4 ans, voyageant autour de l'Atlantique Nord avec ses parents sur le bateau construit par eux. Ils ont passé un an ainsi, départ de France pour les caraïbes puis New York et retour. A l'age de 12 ans, Adrien commence la voile en compétition: “J'ai tout de suite aimé la sensation de liberté, la responsabilité que naviguer implique ainsi que d'être juste au contact des éléments”. “ Aujourd'hui, j'aime toujours aller chercher l'horizon et l'aspect technique que cela implique. Je suis toujours à la recherche d'une façon d'aller plus vite et de régler au mieux”. Avec un diplôme d'Architecte Naval obtenu à Southampton, Adrien a rejoint en 2007 l'équipe de Quantum à Barcelone en tant que Sail designer. En 2010, il continue de travailler pour Quantum Sails mais en tant que designer indépendant et ainsi finir la construction du Fox 10,20 Capado avec Capucine, sa femme. Le bateau à l'eau, ils sont partis pour 44 000 milles nautiques autour du monde pendant 2 ans et 7 mois, de 2011 à 2013.

Depuis le retour en France, Adrien continue de dessiner des voiles pour Quantum et régate en IRC, Soto 40 et beaucoup d'autres support. En 2016, Capucine et lui se lancent dans l'ouverture de la voilerie Quantum Sails France Méditerranée.

Adrien dessine pour beaucoup de supports différents, du dériveur au Mega Yacht, pour la croisière ou la régate. “J'aime cette quête sans fin pour améliorer les voiles” dit-il “naviguer avec mes dessins et analyser ensuite le travail effectuer pour toujours s'adapter”.

Quantum apporte le soutien technique et technologique pour dessiner les meilleures voiles. “Travailler pour Quantum c'est faire partie d'une grande équipe qui se bat pour le succès à chaque défi, dit-il, on travaille toujours plus et ainsi être prêt pour le prochain défi”.

Adrien de Belloy started sailing at four years old, traveling around the North Atlantic with his parents on a boat they built themselves. As a family, they spent a year sailing across the Atlantic, from France to the Caribbean to New York and back. By the time Adrien was 12, he’d moved on to competitive racing. “I loved the sense of freedom, responsibility, team work and being out in nature,” he said. “Nowadays I still love reaching to the horizon and the technical aspect of it. I’m always searching for a way to go faster and trim better.”

With a degree in yacht and powercraft design from Southampton Solent University, Adrien joined Quantum Sails Barcelona as a sail designer in 2007. He left the loft in 2010 to work as a self-contractor for Quantum while he built the boat he and his wife sailed around the world, covering 44,000 miles from 2011-2013. He continues to design for Quantum at the France loft, and is back to racing IRC, Soto 40, and more.

Designing sails for everything from dinghies to super yachts, racers to cruisers, Adrien loves his work. “I love the never-ending improvement,” he said. “Getting to see my designs at sea, then analyzing them to keep on adapting to every situation.”

Working with the team at Quantum gives him the support and resources he needs to design the best sail for every sailor. “Working for Quantum means being part of a great team that is aiming for success at every endeavor,” said Adrien. “We work twice as hard to prove that we are ready for the next challenge.”

  • Nationality: France
  • Position: Sail Designer

French, English

Involved in sail making for more than 15 years, Gildas started in production for Quantum Sails, then moved into design and management in early 2000. Gildas is involved in high-end sails for boats like the TP 52, Open 60 and megaboats. Gildas also contributes to the development and implementation of One-Design standards worldwide. His sailing resume includes match racing, Mini’s and big boat racing in the Mediterranean.

  • Nationality: France


Designer, sailor and owner of Quantum Sails Melbourne, David has been sailmaking since 1981. He opened his own sail loft in 1988 under the name of Performance Sails, then joined Quantum Sails in 1998.

Having been involved in the sailing industry for so long, he has sailed a full range of boats, from skiffs and cats to One Design and offshore boats. He’s also been involved with everything from designing the America’s Cup sails to winning Sydney-to-Hobart races to helping up-and-coming youth as a coach, mentor, and sailmaker for off-the-beach classes.

David’s passion is to make yacht sails faster and give his clients the edge.

  • Nationality: Australia
  • Position: Sail Designer
  • Current Town: Mornington

In his early years of dinghy sailing, Brent Fowler made his own sails during school holidays at Sobstad Sails in Western Australia. He saw the loft evolve from a dinghy sail manufacturer to big boat experts as they made the shift to Quantum Sails. After completing his apprenticeship, Brent took on the role of loft manager and client liaison.

During a short break from Quantum, Brent was part of many winning teams, updating sail designs for their IRC inventories and maximizing sails to OD rules, such as with the Bakewell White 36 fleet. He competed locally and internationally, winning Phuket Race Week and helming the Australian entry in the Audi Med Cup Cartagena event in 2011. In late 2011, Brent re-joined Quantum Sails as the Western Australian agent.

Brent’s primary focus is designing IRC inventories for offshore and inshore racing, as well as sail evaluation for the greater Australian market. Recently, Brent has taken on designing overflow sails for the U.S. market and is involved in iQ Technology™ and Velocity Prediction Program analysis for new-build projects. It can be tricky to work within IRC racing rules, but with Quantum Sail’s design technology Brent can design sails to lower a boat’s rating without losing speed or speed up the boat without a rating penalty. Whether you have a 20’ or 80’ boat, Brent ensures the same care and thought goes in to each Quantum® sail.

  • Nationality: Australia
  • Position: Director of Sales and Design

Born and raised on Garda Lake, sailing has been Carlo Fracassoli’s favorite sport since childhood. It’s no surprise that he become a professional sailor in 2001. In 2003, he began collaborating in the development of racing and cruising sails for some of the industry’s best known sails brands. He designed sails for monotypes and had great results on the water. In 2012, Carlo and Manlio Pozzoli opened their own sailmaking loft and affiliated with Quantum Sails as the Quantum Pro-Laghi S.N.C. loft. Since then, he has designed most of the sails sold by the Italian sales team. A One-Design specialist, Carlo designs many sails for Melges 20, 24, and 32 classes, Garda and European lakes monotypes, and ORC and IRC offshore boats. An accomplished sailor, he won the 2012 Melges 24 World Championship class helming Gullisara.

  • Nationality: Italy
  • Position: Sail Designer

Italian, English

Jan started sailing Optimist dinghies when he was 13 years old, and got caught in the excitement of the speed and handling. The more he learned about racing, Jan realized that most of the winners of the big races were either royal, rich, or sailmakers. “I figured that becoming a sailmaker was the easiest,” said Jan, so he began his sailmaking career in 1975. In 1979, Jan started designing sails, and in 2001 he joined Quantum Sails as the owner and manager of Quantum Denmark. He loves being able to talk to and get input and inspiration from other Quantum sailmakers, designers, and salesmen. Those resources help him provide the best service to his customers. “I love talking to customers through the design and detailing phase of building new sails, and I love getting positive feedback from them,” said Jan. Today Jan designs a variety of sails, specializing in local DH rating rules, ORC, and local one design classes, including X-79, X-99, CB 66, Nordic Folkboat, and more. An experienced sailor, he’s won several major Danish regattas, including being a two-time X-Gold Cup winner and a two-time Danish Doublehand Champion. When he’s not racing or making sails, Jan can be found cruising on the water.

  • Nationality: Denmark
  • Position: Sailmaker

Danish, English

When Gary Leduc was five years old, his neighbor offered to teach him to sail if Gary would help him put together a wooden skiff. Gary agreed, and he’s been sailing ever since. A lifelong fan of the water, he spent most of his high school and college years sailing and surfing, even missing school to enjoy the water. When his neighbor, and owner of Manchester Sails, heard about Gary’s passion, he offered to teach Gary how to make sails. That offer turned into a career in the sailmaking industry.

Gary started making sails in 1969. He has been working at Quantum Bristol for more than 20 years, since before they joined Quantum Sails. He learned his trade the traditional way, making everything by hand. Today, his main focus is designing all types of cruising sails for yachts up to 60 feet.

As a member of the Quantum group, Gary has access to not only the best sail-making technology, but also to the most knowledgeable sailors in the country. “If you have a question, I can quickly Skype with or email someone and always get the answer,” he said. He uses those resources to make sure each of his clients not only get the best product, but also the best information and service. “I want to help educate them about the product and make them feel warm and comfortable,” Gary said. “In the end, they aren’t going to buy something from you if they don’t feel good about the conversation they’ve had with you.”

  • Nationality: USA
  • Position: Operations Manager/Sail Consultant & Designer
  • Current Town: Bristol
Career highlights
  • Lifetime experience on Buzzards Bay, Vineyard Sound and Nantucket Sound
  • Block Island Race Week, 30+ years
  • Buzzards Bay Regatta, 30+ years
  • Nine Newport/Bermuda races, including a win in 1984
  • Multiple Key West Race Weeks and Marblehead/Halifax races
  • Sailed aboard J-boat Endeavor during her East coast tour
  • Currently sailing aboard the J-111 Wicked 2.0 as crew boss/jib trimmer
  • 50,000+ offshore miles between New England and the British Virgin Islands

When Fernando Sallent was 10 years old, a friend of his father bought him an Optimist dinghy. From then on Fernando was hooked. As an adult, his first business venture was Technik Boats, a small Optimist shipyard, but it was the physics of sailing that really intrigued him. “I always had a passion for finding a way to make boats go faster,” he said.

That passion led him to La Industrial Velera Marsal, a local sailmaker who made all of his sails by hand. Fernando worked there learning the basics of sailmaking while also running Technick Boats. After taking a year off to serve in the military, he decided to leave Technick and joined Toni Tio Sail Loft. Toni Tio was only designing cruising sails at the time, so Fernando came on board to lead the One Design section of the company.

In 1996, Toni and Fernando visited the Quantum Annapolis loft, and in 2000 they joined the Quantum Sails team. Fernando continues to design One Design sails as he works to help his clients improve on the water. “I love seeing how sailors do better when the product is improved,” he said. “I love the fine tuning of boats and sails on the water.”

An accomplished sailor, Fernando also works as a coach for many teams. He coached the 470 women’s world, Olympic, and European champions in 1992 and the 470 women’s world champions in 1995. Since 2000, he has advised the Norwegian, Swedish, Swiss, and Spanish Olympic teams.

  • Nationality: Spain
  • Position: Sail Designer
  • Current Town: Barcelona
Career highlights
  • As a sail designer, Fernando’s sails have won:
  • 1992 Olympics – 470 men’s gold medal, 470 women’s gold medal, Europe Dinghy silver medal
  • 1996 Olympics – 470 women’s gold medal, 470 men’s bronze medal
  • 2000 Olympics – Europe Dinghy bronze medal
  • 2004 Olympics – Europe Dinghy gold medal, 470 women’s silver medal, 470 men’s bronze medal
  • 2008 Olympics – Tornado gold medal, 470 men’s bronze medal
  • 2012 Olympics – 470 women’s gold medal
  • 470 Class – 1992-95 men’s world champion,
  • 1992/1995-96/2005/2011 women’s world champion
  • Optimist – 1993-96/2004 world champion
  • Europe Dinghy – 2003-04/2010 women’s world champion
  • 2004-06/2010-12 men’s world champion

An engineer with Masters degrees in solid chemistry, materials science and nano-technologies, sail designer Matthieu Souben said his work lets him combine two things he loves—sailing and engineering. “It requires good theoretical knowledge, pragmatism and many other skills in the same job,” said Matthieu. “I can create the sail I want, then imagine it sailing from my office.” An experienced racer, Matthieu sailed professionally from 2003–2007 for the French Olympic Sailing Team, campaigning on the Tornado. His monohull racing experience includes J/80, Figaro, Mini 6.50, and Class 40. A multihull specialist, he’s also raced Formula 18, Diam 24, GC 32, Decision 35, and several maxi offshore trimarans. At the Quantum Sails France loft in Vannes, France, Matthieu works primarily on the design and development of sails for inshore and offshore One Design classes. He also assists with sales and developing and managing customer sail programs in France and throughout Europe. Whether he’s in the loft or on the water, Quantum’s resources help him provide the best services and products for his clients. “My favorite things about working for Quantum Sails are the good guys, good relationships, and common will that provides a great opportunity for us to realize great things.”

  • Nationality: France
  • Position: Sail Design Consultant


Patroklos Tahtatzis

Patroklos “Pat” Tahtatzis grew up around sound lofts. His father opened his own loft in 1979, and in 1998 Pat joined the family business making sails. The pair affiliated with Quantum Sails in 2000, and soon after Pat travelled to Annapolis, Maryland to learn the art of sail design from Quantum’s leading designers. Since 2004, Pat has been designing sails for a range of boats, from 30–60 foot racing boats to 30–140 foot cruising boats. Pat specializes in sails for the Beneteau First range, as well as fast, medium-size racing boats, like the IMX 38, IMX 40, ILC 40, Comet 41 and 45, Corel 45, Rodman 42, Mumm 36 and Grand Soleil 42R. His expertise is in VPP analysis and certificate analysis in ORC boats. “My favorite part of designing sails is when I see my designs on the water winning in high-level competition, such as at worlds, Europeans and local championships,” Pat said. Some of his completed projects have won the Rolex Middle Sea Race, including the Farr 52 in 2012. Pat enjoys big boat sailing, with many wins in local and European offshore regattas.

  • Nationality: Greece
  • Position: Sail Designer
  • Current Town: Athens

Greek, English, French

With a Master’s degree in Naval Architecture, Pietro Pinucci specializes in computational fluid dynamics (CFD). Working for Quantum Sails Italy since 2013, he manages repairs and service for boats of all sizes. Thanks to his technical background, Pietro is an up-and-coming sail designer with experience in appendices optimization and shape analysis. With a love for cruising and racing, he has an open-minded and challenging approach to sail design that fits perfectly with Quantum’s approach to sailing.

  • Nationality: Italy
  • Position: Assistant Production Manager/Sail Designer
  • Current Town:

Italian, English, French

Rick Rothenbuhler

Serving southeast Michigan is experienced sailmaker Rick Rothenbuhler. Along with an extensive background in racing and one design sailing, Rick has nearly ten years of sail design experience and over twenty years of sailmaking experience.

Rick focuses on new sails, service and support, as well as designing sails for production racing and cruising boats. He also serves as Quantum’s lead designer for several one design classes.

Previously, Rick served many years as a designer, production manager and salesman with sail lofts in Southeast Michigan and Northwest Ohio. Rick is well known in Great Lakes sailing circuits, accumulating numerous one design wins in the Tartan Tens, Laser, Lightning, Thistle, J/22, J/24 and Interlake classes, including several North American Championships and five World Championships while sailing with customers. Rick has sailed 15 Chicago and Port Huron Mac races with four class wins.

  • Nationality: USA
  • Position: Sail Consultant/Sail Designer