What is the process for recording a sail to try and get more accurate polars? I've recently been tasked with learning expedition on an older classic cruiser/racer that doesn't have easily accessible polars. I've got a starting point from a sail maker, but it'll likely need to be refined with some real-world data.

I'm still tryig to figure out how to get live data from the boat's Raymarine Axiom to the computer, but assuming I can, what's the process to record our sails in various conditions to get more accurate data? Thank you!

Last edited by Schumann (5/12/2026 12:07 pm)