Force lab

Sailboat force visualizer

True wind45° starboard

Red no-go zone · ±36.5°

True wind speed14.0 kn

Heading0° fixed

Polar boat speed—

Sail angle—

Helm—

Dufour 410 GL reference yacht

Main + genoa78.5 m²

Waterline11.15 m

Displacement8,940 kg

Keel lateral area*3.2 m²

Rudder area*0.85 m²

Published dimensions and standard sail plan; *foil areas are modeled estimates.

Apparent wind—

Sail force—

Polar boat speed—

Vector dot diagramLength shows magnitude · wind scaled separately

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