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Multihull Racing Upwind Sails

Fusion M Sails

Fusion M® Performance Advantage

Using Quantum's state-of-the-art iQ Technology® design process, each Fusion M Racing sail is developed and optimized specifically for your boat and racing challenges—whether you’re racing around the world or trying to best your local rival. The custom sail design is developed using the most advanced membrane construction and shaping methods in the industry to guarantee infinitely repeatable and unprecedented shapes in an easy to trim package. Fusion M Racing sails are the fastest and most efficient tailor-made sail for your program.

A wide range of fiber and filament packages, combined with the latest skin options, offer whatever balance between pure performance and ultimate durability you need. From ultimate strength and weight ratio to sails tough enough to go around the world, Quantum's Fusion M series has you covered.

All Fusion M sails are available in square-top or pin-head options and in either VX (black or gray) or Matte (gray) skins.

Fusion M 9

Fusion M 9

The Fusion M 9 is the ultimate sail for grand prix and fiercely competitive teams. Quantum's top designers integrate with each program to develop and engineer custom solutions to meet its unique challenges.

Boat Size

50+ ft
15+ m

Material

All carbon

Application

Grand Prix Racing
Distance Racing

Cost

Fusion M 7+

Fusion M 7+

The Fusion M 7+ is everything that makes the Fusion M 7 the industry standard but made with all carbon for no-holds-barred performance. Simply the strongest, lightest, and most durable sail available for larger-boat programs.

Boat Size

35-80 ft
10-24 m

Material

All carbon

Application

Grand Prix Inshore Racing
Distance Racing

Cost

Fusion M 7

Fusion M 7

The Fusion M 7 delivers the unmatched performance required for success at the higher levels. The carbon/aramid blend is optimized for each project to produce ultimate performance for the lightest weight, without sacrificing strength or ease of trim.

Boat Size

35-80 ft
10-24 m

Material

Carbon/Aramid Blend

Application

Inshore & Offshore Racing
Distance Racing

Cost

Fusion M 5

Fusion M 5

Reliability and versatility make Fusion M 5 the go-to membrane sail for small to mid-sized boats. Customized aramid/carbon blend produces a lightweight sail with superior, all-around performance and ease of trim.

Boat Size

25-45 ft
8-14 m

Material

Aramid/Carbon Blend

Application

Club Racing
Regional Racing

Cost

Fusion M 3

Fusion M 3

Fusion M 3 is perfect for the small-to-mid-sized-boat programs looking for an affordable, high-quality membrane sail or when class rules do not permit high modulus fibers or filaments. The M 3 delivers with rugged, reliable polyester fibers paired with easy-to-trim designs.

Boat Size

20-35 ft
6-10 m

Material

All Polyester

Application

Club Racing
Class-Rule One Design

Cost

Quantum iQ Technology®

Aero Structural Coupling

DESIGNING THE IDEAL FLYING SHAPE

Sail Shape: Using our own 3D design program, actual boat specifications and our extensive database of boat and sail types, the size and geometry of the sail are defined and a mold shape created. Sophisticated editing tools allow for the highest levels of accuracy and refinement.

Aerodynamic Analysis: Using a virtual prototype of the sail shape and computational fluid dynamic (CFD) calculations, designers compute and visualize aerodynamic forces, wind angles and velocities, and the distribution of air pressure on each side of the sail. The resulting images and data help predict performance.

Structural Analysis and Fiber Mapping: Using finite element analysis (FEA), Quantum designers visualize where the sail bends and twists and the distribution of stress and strain within the membrane. The virtual sail is attached to a rig model that takes into account the properties of the running and standing rigging and longitudinal and transverse stiffness. Data gained through in-house materials testing is added to the equation to evaluate the effects of different fiber types, amounts, and placement leading to the development of a custom fiber map.

The integration of 3D modeling, CFD and FEA (Fluid Structures Interaction) allows designers to assess and refine varying elements of the sail design leading ultimately to the optimal size, shape, structure, fiber type, and fiber layout of the finished product. Quantum’s expertise in using these tools is particularly valuable when applied to large sailing yachts, which present unique challenges due to variable weight placement and heavy loads.

INFRARED HEAT

To create the laminate, fibers are strung on the base film in a custom pattern according to the design specifications. During application, excess glue is stripped from the fibers to avoid saturation, minimize brittleness, and to achieve the highest strength to weight ratio. After the top layer of film is in place, a vacuum bagging process is used to “shrink wrap” the film around the fibers. The layers are then fused using infrared heat. Quantum’s carbon infrared emitter system is a quick and efficient heat source that is easily controllable to ensure that just the right amount of heat is applied during the laminating process depending upon the type and amount of materials being used in your sail. To fabricate modern composites, infrared heat or UV radiation is used because they quickly and homogeneously heat or cure them. It also transfers heat directly and precisely without having to contact the laminate and damage the components, and can be used in the vacuum conditions Quantum uses during lamination.

Intense Pressure

Quantum uses two-part, thermo-set adhesives, which require high heat and pressure for lamination compared to simple thermo-molded adhesives. Several tons of pressure are applied to the vacuum-bagged laminate to ensure the adhesive is evenly spread. This proprietary process squeezes the adhesive down to the thinnest possible layer and ensures the highest possible adhesive to fiber ratio.

Cross-Linked Molecular Structure

The thermo-set adhesives used in Fusion M® sails undergo a transformation at the molecular level during lamination. The high heat and intense pressure induce polymerization—the creation of a cross linked molecular structure as the two part adhesive “kicks.” The result is a laminate with 4-5 times the sheer strength of a traditional hot-melt (thermo-molded) method.

Post-Cured Shaping

Unlike single-step lamination and shaping methods used by other sailmakers, sections of a Quantum Fusion M® sail are completely cured before the shaping process begins. This process eliminates the effects of shrinkage and distortion under the heat of the lamination process and guarantees repeatability. The carefully optimized aerodynamic shape of a Quantum® sail is reliably provided to each and every client, every time.
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