Independent guidance for Australian yacht owners
Complete planning

Yacht sail specification studio

Estimate the working geometry, then turn the numbers into a consistent brief for professional verification.

Yacht sail specification studio visual guide

Calculations run in your browser. Values are not uploaded or saved.

Worked example

Example: 38-foot short-handed cruiser

I 14.0 m, J 4.2 m, P 13.2 m, E 4.5 m and LP 5.04 m produces a 120% genoa, approximately 35.3 m² of headsail area and a 31.2 m² triangular mainsail before roach.

Editorial illustration for Yacht sail specification studio
Illustrative image. Boat-specific dimensions and construction must be verified.