Draft stripe camber 16.4%
SailScan

Faster By Numbers with SailScan

The stripes behind this page are a sail. Scroll, and watch the camber ease — SailScan reads curves like these on every scan.

In the field

SailScan reads your sail shape in the field and in real time.

Reads any sail from an optimist to a super maxi — Mainsails and headsails — Port or starboard tack. Use your mobile phone to analyze draft stripes for accurate camber, draft, entry, exit and twist data.

How it works — annotated on the stripe

01

Take a photo

Take a photo with your phone and our computer vision model gets to work.

SailScan camera screen framing a mainsail with draft stripes

02

Read and measure

SailScan finds each draft stripe and traces the curve from luff to leach to compute sail shape parameters such as Camber (depth), Draft (position of max depth), and Twist (angle relative to the boom).

SailScan tracing draft stripes and reporting camber, draft and twist

03

Adjust and record

Make adjustments in real time. Save scans for later debrief, comparison, or reuse the same settings to increase sail speed and efficiency.

SailScan comparing saved scans side by side

From the fleet

“We trimmed the main off SailScan numbers all weekend and found half a knot upwind.”

Tom R. — J/111 tactician, San Francisco

“The draft stripes read in seconds. What used to be an evening of photo markup is done before we hit the dock.”

Sofia M. — Sailmaker, Newport RI

“Camber and twist on every tack, logged. It’s part of our debrief like the GPS track.”

Henrik L. — Coach, Aarhus DK

“I’m a weekend racer, not an engineer. SailScan tells me what to ease and when.”

Dana K. — Santa Cruz 27, Seattle

Numbers on your next sail.

Platform

Welcome computer vision aboard

The SailScan VLM platform can be customized for your company, team, or coaching needs. Embed a powerful sail scanning and recommendation engine with outputs for sail design, team coaching, and recording into your workflow.

SailScan-branded PDF reports
SailScan team portal: a library of scans ready for review

About

SailScan LLC was founded by veteran racing professional Alex Higby to compute key aerodynamic metrics and make recommendations to optimize sail performance in the field. SailScan is built and maintained in San Francisco, CA by Seamaphore.

34th America’s Cup 52 Super Series Extreme Sailing Series