3Dr™ Q&A

RACING SAILS
3DL Technology

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Paneled Sails


Take the 3Dr Tour.

How is 3Dr similar to 3DL?
Both 3Dr and 3DL are 3-dimensionally thermo-molded sails. Materials used and 3-dimensional shaping are the same and lamination for both uses heat, vacuum pressure and proprietary adhesives.

How is 3Dr different from 3DL?

1. 3Dr yarn layouts are optimized for application onto a moving surface rather than a stationary one.

2. Shaping method is different. The 3Dr drum mold surface is shaped using the principal of Gaussian curvature. 3D curvature is created in two directions. The circular form of the drum (A) forms one axis. The controlled curvature across the drum surface (B) is the other axis. 3D curvature of sail = A x B.

What fiber is used in a 3Dr sail?
3Dr is currently made using aramid fiber.

Is 3Dr delivery faster than 3DL?
Yes. Delivery is faster for two reasons:

1) The remarkable efficiency and output of 3Dr system can produce more sails in less time and,

2) there is a faster curing time for the 3Dr laminate.

Is pricing lower for 3Dr sails?
Yes. Price for a 3Dr sail is lower because of higher efficiencies of 3Dr system where all steps — molding, yarn application and vacuum/heat bonding — are performed simultaneously, rather than in consecutive steps.

Are there any size limits to 3Dr sails?

Yes. 3Dr sail limits depend on a number of factors, but the current maximum thread density is approx. 15,000 dpi and the current maximum foot dimension is approx. 6.7 meters.