SailScan

Intl. signal hoist /// F · B · N

Faster By Numbers with SailScan

Machine-learning sail analysis off a phone photo. Camber, draft, entry, exit and twist — read in the field, in real time.

Signal / 01Field Telemetry

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.

Camber14.2%
Draft41%
Entry22°
Exit11°
Twist8.5°
Signal / 02How it works

Take a photo

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

SailScan camera screen capturing a mainsail with draft stripes

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 results screen with traced draft stripes and metrics

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 compare screen reviewing two saved scans side by side
Signal / 03Radio traffic
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

Hoist it. Scan the sail.

Signal / 05About

Built by a sailmaker who races what he builds.

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. Alex has competed in major international circuits including the 34th America's Cup, the 52 Super Series and the Extreme Sailing Series. SailScan is built and maintained in San Francisco, CA by Seamaphore.