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Star

Mark Mendelblatt with All Doyle Sails, Weymouth Test Event 2011Mark Mendelblatt and Brian Fatih, Weymouth Test Event 2011 using Doyle M11 and J8C
Photo Credit:  Leandro Spina

Developing the All Around Main and Jib

The focus of our Main and Jib development began with evaluating the existing "state-of-the-art" products and deciding what we could do better.

The challenge of designing the All Around Star Main is to have a main with enough power for 6-10 knots upwind, while not being too deep and shut down for the real light and/or too full for the fresher conditions on a very flexible spar. All these upwind range issues are then balanced with still having a fast, full and open enough main downwind on a boat with no spinnaker and a small jib. With each of our prototype main designs 1 thru 14, we utilized our 3D computer designs and Computation Fluid Dynamics (CFD) to optimize for all around performance.

The CFD modeling showed us that 40% of the forward driving force is generated by the Star headsail while sailing close-hauled. With the aid of CFD modeling, we developed the J6 jib that has all the gears high and fast in all conditions. The performance in two boat testing was better than we could have ever hoped for in pairing the powerful high pointing J6R Jib with the low drag all around M14 Main. The J9R Jib is our newest flatter bi-radial heavy air jib built from heavier materials for shape holding and durability in heavy air conditions.

We are actively comparing our latest star uprange Main 15 and Jib 9R developments with our existing proven designs M14 and J6R with CFD modeling before actual two boat testing even begins. The goal of M15 and J9R is toward higher windspeeds 12 - 22knots to pair with our existing all Purpose M14 and J6R which have been proven at the Perth worlds and Miami winter regattas and optimized for 6-16 knots. 

 

For more information or to order Star Class sails: