Ullman Sails Helps Power 2015 World Champions and 2015 Corinthian World Champions!

1st Overall: 'Flojito Y Cooperando' (Main Only)

1st Corinthian: 'Team RAF Benevolent Fund Spitfire' (Main + Jib)

Ullman Sails J/70 Guides
Update January 21, 2015 
        J/70 Racing Guide
        J/70 Tuning Guide
        J/70 Tuning Chart

Dacron Crosscut Race Mainsail

- Premium Firm Finish Race Dacron

- Crosscut Panel Layout

- Custom Tapered Battens

- Vision and Spreader Window

- Bolt Rope

Why Crosscut?

The Ullman Sails J/70 mainsail uses a crosscut panel layout to improve the sails ability to twist, ultimately making the sail easier to adjust and trim according to the conditions.  This has proven successful in many of our one design development programs, most notably with the Melges 24 Dacron “Shark” mainsail - Samuel "Shark" Kahn won the 2003 Melges 24 World Championships at age 14. (The M24 Shark mainsail also powered the 2005 and 2007 World Championship teams!).

Standard Features: Mainsail delivered with class royalty, class logo, sail numbers, spectra clew strap,telltales and roll bag

Available Upgrades:  Reef, Luff Slides

Dacron Tri-Radial AP Race Jib

- Premium Firm Finish Square Race Dacron

- Radial Panel Design

- Zipper Luff

- Custom Tapered Battens

- Vision Window


Why Tri-Radial?

Performance through the Wind Range

Our tri-radial race jib is cut to take advantage of the low stretch of the Square Dacron cloth bias in an all-purpose head sail.  The result is a jib that doesn’t stretch, keeping the sail flat as the wind speed increases.


The combination of a radial panels and Square Dacron is essential give the sail the durability needed for a Dacron furling head sail.


AirX 650 Spinnaker

Designed to Perform

The Ullman Sails J/70 spinnaker is designed with a powerful flying shape that is easy to trim and performs across all wind angles. This is the spinnaker of choice for flat water venues.

Cloth Matters

The sail is built using AirX650, a preferred high performance nylon that has proven to hold its shape and firmness throughout a season on the racecourse.

Standard Features:  Spinnaker delivered with class royalty,adjustable luff, foot and leech cords, and fold bag.

Available Upgrade:  Vision Window

SK75 AP Class Spinnaker

Designed to Perform

Also designed with significant performance at all wind angles and to be easy to trim, the SK75 Spinnaker is more flexible in a variety of conditions and venues.  

Standard Features:  Spinnaker delivered with class royalty,adjustable luff, foot and leech cords, and fold bag.

Available Upgrade:  Vision Window

Video Discussion:  Tuning and Racing the J/70

with David Ullman and Erik Shampain


Ullman Sails Sail Development

All of our one design sails are developed and refined through an extensive sail testing program that involves time on the water and on the sail loft floor. The collaboration between our design team and top competitors ensures that our sails perform through the wind range, giving our customer's an edge on the racecourse.

"In one design the goal is to have an all purpose sail inventory that is powerful in light breeze and low drag in heavy air."

 - David Ullman, President and Head Designer


Check out the latest J/70 sail development session based in Newport Beach, California with David Ullman, President and Head Designer, and Erik Shampain, One Design Specialist from Ullman Sails Newport Beach. Video credits to the talented KMag at Ullman Sails Newport Beach.

 J/70 Class Links:

J/Boats Website

J/70 Association Class Rules

Sailing World Magazine - 2012 Boat Review

Have Questions?  Ask an Ullman Sails Expert 

For pricing & more information, contact your local Ullman Sails loft.

18 Footer2.4 MeterA ClassCal 20Capri 22
EtchellsFlying DutchmanFlying ScotFlying Tiger 10Formula 18
Lido 14Melges 24MercuryNaples SabotOptimist
Santana 20TornadoUFO 22Ultimate 20Viper 640

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