X-Drive - Racing Mainsail

LA 28 Daysailer designed by Berkenmeyer Yacht Design. Photo courtesy Berkenmeyer Yacht design

X-Drive® is the ideal sail construction process for racing sailors who appreciate a well-shaped sail, but who also need to keep control of cost.

The IOR Half Tonner RED CLOUD with X-Drive carbon sails.

Holds Its Shape

X-Drive is a two-part construction method. As the diagram shows, the sail is made from a light weight material cut into cross cut panels that when put together with broad seaming to achieve the 3-D shape created by the sail designer. Next the sail is reinforced with a grid of narrow high-strength, low-stretch fibers that are bonded to the sail 11 at a time.

Close up of the carbon X-Drive fibers near the tack of a genoa. The dark horizontal line is the seam between panels. The X-Drive fibers are bonded to the sail across the seams, which prevents speed-killing seam-creep.

X-Drive is a two-part construction method. As the diagram shows, the sail is made from a light weight material cut into cross cut panels that when put together with broad seaming achieve the 3-D shape created by the sail designer. Next the sail is reinforced with a grid of narrow high-strength, low-stretch fibers that are bonded to the sail up to 11 at a time.  

UK Sailmakers’ X-Drive construction system uses a grid of continuous high-strength low-stretch fibers to support the sail’s flying shape. Since the fibers run across the shaping seams, the seams are locked in place and cannot distort. With hundreds of closely-spaced fibers bonded to the sail’s surface, the sail has incredible strength and stretch resistance, which results in a smooth sail without distortion.

Cost Effective

The cost of the sail is also controlled because the sail surface can be made out of a less expensive, lightweight laminated material, whose only job is to give the sail its 3-D shape. All the sail‘s strength comes from the dense grid of continuous high-strength fibers that are bonded to the sail’s surface. 

Construction Options


X-Drive Carbon

Description:
Loadpath reinforced sail construction for performance cruising and club racing.

Construction:
Extra lightweight cross-cut laminate panels reinforced with continuous corner-to-corner carbon fiber yarns.

Material:
Carbon fiber loadpath yarns applied 11 at a time along the sail’s computer predicted loadpaths. Carbon fiber is the strongest and least stretchy yarn used in sailmaking.

Shape Stability:
★★★★

Durability:
★★★★

Shape after 500 hours:
Circa 80%

Price:
$$$$


X-Drive Silver

Description:
Loadpath reinforced sail construction for performance cruising and club racing. Allows for an all white appearance.

Construction:
Extra lightweight cross-cut laminate panels reinforced with continuous corner-to-corner S-Glass yarns.

Material:
S-Glass fiber loadpath yarns applied 11 at a time along the sail’s computer predicted loadpaths. Glass fiber yarns have more stretch than carbon but are less expensive.

Shape Stability:
★★★

Durability:
★★★★

Shape after 500 hours:
Circa 70%

Price:
$$$$