Pixel — performance

Boat speed vs. true wind angle, by tack

Average speed through water (STW) at each true wind angle, shown separately for starboard and port tack — not mirrored — so a real port/starboard performance difference stays visible instead of being averaged away. Corrected for the AWA sensor offset.

Hide likely-motoring points (TWA < 30°, STW > 2kn — only catches motoring pointed near head-to-wind)