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Ullman J/27 Rig & Sail Tuning Guides
Sail Trim Guides
Ullman J/27 Tuning Guide
How to optimize power and pointing
This guide will provide you with the basics of tuning a J/27. Settings may vary on your sailing style, crew weight and your sailing conditions. We strongly recommend you experiment and find out which settings work best for you.
- Headstay
- Mast Butt
- Rig Tension
- Hull & Deck
Printable Guide
J/27 Headstay Length
31" 4 1/8 from center of pin to center of pin.
J/27 Mast Butt Location
16" 6 3/4 from the transom/deck intersection to the back of the mast.
J/27 Rig Tension
Upper Shrouds: 3/16 wire = 1300 lbs.
Intermediate Shrouds: 5/32 wire = 300 - 350 lbs.
Lower Shrouds: 7/32 wire; light air = 1100 lbs.; medium air = 1500 lbs.; heavy air = 1800 lbs.
J/27 Hull and Deck Layout
Add 12:1 boom vang and cascading backstay system. Make sure the deck layout is functional and easy to use.
Please feel free to give us a call or e-mail us to discuss sailing, ask questions, or order a new sail. We are here to help you achieve your sailing goals.
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