Tuning Guides


Optimist Tuning Guide

Power your new North Sails Optimist V-Series mainsail for speed following the recommendations on this quick tuning guide. Sail ties can be adjusted in the range of 1-5mm in light… Read More

Fareast 28R Tuning Guide

All turns from base. TWS Knots Forestay V1 D1 D2 0-5 -5 -3 -1 -1 5-10 -3 -1 0 0 10-14 BASE BASE BASE BASE 14-18 +5 +2 +1 +1… Read More

OK Dinghy Tuning Guide

North Sails expert Charlie Cumbley provides a detailed run-through on how to get the most out of your OK Dinghy sail. This guide will help to get your mast set… Read More

Beneteau First 18 SE & Seascape 18 Tuning Guide

QUICK TUNING NOTES TWS 0-4 4-8 8-12 12-16 18+ Mast Rake 8,64m Shrouds Tension Loos Tension Gauge 91 Model A 34 36 Base Setting 38-40 42-44 45-46 Shroud Turnbuckles (Full… Read More

Elliott 5.9 Tuning Guide

North Sails expert Derek Scott answers your Elliott 5.9 speed and boat handling questions. Your new North sails are designed with an “all around” philosophy in mind. As we learn… Read More

Harbor 20 Tuning Guide

Thank you for choosing North Sails for your Harbor 20. We hope using this tuning guide will help you get the most from your new North Sails. Our goal is to… Read More

Lark Tuning Guide

Mast Foot: 2700mm (From aft transom to aft face of the mast foot) Spreader Length: 395mm (From the outside of the shroud perpendicular to the bearing surface of the mast… Read More

Knarr Tuning Guide

Download – Knarr Trimguide (Danish) The purpose of this tuning-guide is to give our clients in the Knarr class some guidelines on how to get the most out of their… Read More

BB-10 Tuning Guide

Formålet med denne tuning guide er at give vores BB-10 meter kunder nogle retningslinjer i, hvordan man får størst mulig udbytte af sine nye North Sejl. Tuning guiden er udarbejdet… Read More

IC37 by Melges Tuning Guide

Also available: IC37 Boathandling Manual The IC 37 was designed to have simple tuning adjustments in order to minimize boat-to-boat variation and highlight the sailors’ performance. Therefore, the only allowable rig… Read More