Quantum Sails Service & Support for Sperry Charleston Race Week 2015

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Thursday Practice
Use designated VHF channel for the circles
Circle 3 for M20, M24, Viper: starts from 12pm – 2pm
Circle 2 for J/70: starts from 2pm – 4pm

Sail Repair
On-site overnight sail repair by Quantum Charleston; on the Terrace. Drop in after racing or contact John Bowden at 843-754-9547 or jbowden@quantumsails.com

Daily Video Debrief
6:00 PM, Main Stage/Jumbotron
Join America’s Cup winner and Quantum Racing helmsman Ed Baird and
Quantum Racing cameraman Keith Brash for daily insights.

Quantum Hospitality Tent
Stop by and register to WIN Quantum Racing® Gear and a Quantum Optimist Sail!

Owners’ Party
5:00-7:00 PM, Saturday, April 18th at the shoreside venue dining tent. Bring a guest and join us for fun, food, and specialty beverages.

Daily Dock Talks and Debriefs
Look for the boat with the Quantum flag!

Circle 1 – Saturday
For J/80s with Quantum’s J-boat expert, Kerry Klingler.
For J/24s with Quantum’s Allan Terhune and Travis Odenbach

Circle 2  – Friday
For J/70s with Quantum pros, Kerry Klingler, Marty Kullman and Allan Turhune. 

Circle 3 – Friday
For M24 with Quantum pro, Scott Nixon.

Circle 4 Offshore – Saturday 
For J/111s with Quantum pro, Scott Nixon.

Circle 5 Offshore – Thursday
For J/88s with Quantum’s J-boat expert, Kerry Klingler. Note: Time and place TBD, details will be sent to owners.

Circle 5 Offshore – Friday
For PHRF C with Quantum pro, Steve Thurston on his J/29 Mighty Puffin.

Event Contacts
We’re here to help you have a great event! Contact an on-site Quantum Rep with any questions or needs.

John Bowden, 843-754-9547, J/70 Wind Czar

Andy Camarda, 847-507-1179, J/70 Bucephalus

Alex Clegg, 401-301-7068, J/111 Heat Wave

Wally Cross, 586-596-8854, J/70 Wind Czar

Tim Greves, 401-658-6608, J/111 Wicked

Kerry Klingler,  914-924-3466, J/70  Menace

Martin Kullman, 727-560-0164, J/70 Reach Around

Gary Leduc, 508-965-7897, Wicked 2.0

Scott Nixon, 410-703-2578, J/111 My Sharona

Andrew Scott, 410-353-1518, Support

Doug Stewart, 410-353-1427, Support

Allan Terhune, 410-644-1051, M20

Steve Thurston, 401- 529-4821, J/29 Mighty Puffin

Libby Tomlinson, 231-313-8898, Event Coordinator

Nick Turney, 419-346-4197, J/111 Spaceman Spiff

Patrick Whitmarsh, 415-939-1965, M20 Flygfisk            

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Quantum Signs On As Title Sponsor for J/World Annapolis Thursday Night Racing

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Quantum Sail Design Group is pleased to announce their role as title sponsor of the J/World Annapolis Thursday Night Racing. Open to J/22, J/24, J/70, and J/80 boats, Thursday night races provide a valuable experience for all sailors, and Quantum is proud to be a part of it.

J/World Annapolis has provided coaching and instruction to new and experienced sailors since 1992. Their Thursday night race series adds to that education by providing a fun, low-pressure racing environment for all levels of racers.

Kristen Berry, director at J/World Annapolis, said Thursday night racing has become a popular part of their schedule. “J/World Annapolis has been putting on Thursday night races for more than 20 years, and we’ve seen significant growth in the past few years, in part because of the growth of the J/70 class,” he said. “But it’s also because weeknight racing is growing in popularity. Last year we had more than 80 registrants, and we expect the same this year.”

Berry said he’s excited about having Quantum as the title sponsor of their growing event. “With Quantum as an official sponsor, we’re excited to get back to the roots of what Thursday night racing is all about – the educational value. The team and expertise that Quantum brings will make the learning aspect of racing better for all our participants.”

The partnership is a natural fit for Quantum and J/World, who both strive for excellence on the water. “Quantum is positioned as being one of, if not the premiere sailmaker in the industry,” said Berry. “They’re on the cutting edge of development, just like J/World is – we have very high expectations and standards that we’re always working toward. These two companies will align well for this partnership.”

Quantum’s Global One Design Director Allan Terhune Jr. said Quantum is as excited to partner with J/World, calling Thursday night racing the most fun series in town. “Everyone looks forward to it, and we are glad to be part of it,” he said.

“This series embodies what the sport is all about – fun sailing with friends,” said Terhune. “Its good practice for those who are trying to get better, and it’s a great social outlet for the sport to grow. It also has a very large educational component, which we are looking forward to helping make stronger with the team at J/World.”

For more information on J/World Annapolis – including registration and NOR – click here

 

 

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The Truth About In-Mast Furling Mainsails

In-mast furling mainsails are popular on many cruising boats, and the conveniences is hard to beat.
By Jeff Thorpe, Quantum Pacific & David Flynn, Quantum Annapolis

With the Strictly Sail Pacific boat show kicking off this week at Jack London Square in Oakland, CA, we thought it would be helpful to take a look the options available for materials and battens for in-mast furling sails. These sails are popular on many of the cruising boats you will see at the show, and the convenience is hard to beat.

The sail is a critical part of determining how well the system works, as well as how well the boat sails. Unfortunately, standard, original-equipment sails are often an afterthought, with cost – not quality – being the primary driver. Stretchy, poorly-designed sails that bunch up and jam as you try to furl or unfurl can quickly negate the beauty of the system.

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The partial-batten sail: This sail is a MC 6500 Carbon/Technora blend sail with partial epoxy battens. As you can see in the picture, the thread orientation has been engineered toward the luff to help the sail hold its shape while reefed. Using four partial battens, we are able to increase the roach to the area of a standard cruising sail.

Furling mainsails are inherently difficult to build. Without a conventional batten structure, compromises to both size and shape must be made. Since it is the battens that support the sail’s area outside the straight line between head and clew (the roach), furling mainsails are built like headsails with leech hollow. To furl well inside the limited space of the mast cavity, the sail’s shape must also be quite flat. Control of sail shape via mast bend is not possible. Without battens, there is no structure to resist compression and keep the leech from moving toward the luff under load. This causes the sail to get fuller, just when you want to see it get flatter.

Vertical battens can help, but they can also create problems. The cavity size and width of the mast opening are important factors in determining if battens will work: battens add thickness to the sail and can make the sail difficult to roll in and out of the cavity. The pockets are also built-in sources of chafe, and will require maintenance over time. Vertical battens can reduce leech curl and allow for a small increase in area, but they can’t address the compression loads that cause a sail get fuller under load.

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The full vertical batten mainsail: This is a MC Fusion 6500 Carbon/Technora blend sail with full-length RBS carbon splice battens, which allow us to achieve a roach very close to the default PHRF girths of a racing sail.

The best way to make a good in-mast mainsail is by controlling stretch—and finding a way to do that without conventional batten structure. This puts a premium on materials. Woven polyester (Dacron) comes in varying grades that are virtually impossible to tell apart by looking at them. Only the lowest stretch, most tightly woven materials will provide the required stretch resistance. Reducing stretch across the material’s thread line (bias) is the key. And yes, you guessed it—these are the most expensive woven materials available.

On the other hand, composites designed for cruising applications actually are perfect for in-mast mainsails. They have less stretch in all directions to preserve the sail’s shape under load, keeping it flat with a straight, clean exit. They also improve the functionality of the system because the sail tends to not stretch and bunch up as it’s furled. The sail will actually be easier to furl and unfurl—when you pull on the line to turn the mandrel, the sail won’t stretch and give, but will begin to roll immediately.

Composites are available in a variety of sandwich constructions with exterior skins of woven polyester (taffetas), a fiber network to bear the primary loads, and a film to provide strength in all directions. There are two basic types: tri-radials made from pre-made materials, and Quantum’s proprietary Fusion MC one-piece membranes.

Tri-radial mainsails take advantage of radiating panels of pre-made materials out of the three corners of the sail to better align the fabric thread line with sail loadings. The length or “warp” fiber of the material is oriented to align with the primary load path. Better alignment creates lower stretch improving the sail’s ability to hold its shape. There is a broad spectrum of material options in tri-radial construction. They range from woven materials made with their strength in the warp direction (as opposed to the fill direction of classic woven polyester), to composites with multiple layers of material and a variety of fiber options. Tri-radials provide a performance upgrade for those who are looking for more than a traditional woven polyester sail can provide.

Fusion MC cruising mainsails are engineered on a sail-by-sail basis as one-piece membranes with custom fiber mapping tailored to the sail’s design purpose and expected usage. They can utilize a variety of fiber types. They provide lower stretch and greater strength, improving both initial performance and long-term shape retention without sacrificing durability and reliability. They represent the ultimate combination of performance and durability.

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The full batten Dacron mainsail: This sail is a low-stretch Dacron sail with RBS epoxy splice battens. Although this sail has batten structure, it shows stretching and the draft moving aft because it was made with woven sail cloth as compared to the Fusion MC membrane sails above.

The Quantum Pacific team will be at Strictly Sail Pacific this week April 9–12. Come visit us at Booth 42 where we will be showing off our latest cruising and racing sails for 2015. Reps Jeff Thorpe and Will Paxton will be available to answer your questions.

Strictly Sail Pacific Show Hours:
Thursday, April 9       10:00 am – 6:00 pm
Friday, April 10          10:00 am – 6:00 pm
Saturday, April 11      10:00 am – 7:00 pm
Sunday, April 12        10:00 am – 5:00 pm

Click here to purchase ticketsClick here for an interactive show map.

Can’t make it to the show? Contact Jeff or Will with your questions.

Jeff Thorpe
415-505-1042
jthorpe@quantumsails.com

Will Paxton
510-508-7231
wpaxton@quantumsails.com

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