Your hull. Visible.

Select the hull family that matches your boat — and see it before you commit.

Explore Your Edge For Racers →

Pick

Choose the hull family. Ballast, Form, or Hybrid.

See

Cross sections inside the hull outline. Sheer, waterline, keel.

Trust

The right hull before the edge map.

Pick and See

Choose the hull that matches your boat.

Switch between Ballast, Form, and Hybrid on the Boat tab. The ranked Delft candidates update. Pick one.

The selected hull appears as a profile card — cross-section station frames inside the hull outline, sheer line, waterline, and keel spine all visible. You see the shape before you commit.

SailEdge Boat tab showing the Delft Hull Shape picker with cross sections inside the hull outline — Boat tab — Hull Shape picker

Three Families

Every hull carries its stability differently.

Ballast

Deep keel, narrow waterplane. Linear righting moment. The certificate RM holds across the heel range.

Form

Wide beam, strong waterplane. Stiffer at low heel. Needs more help as heel increases.

Hybrid

Balanced stability from both beam and ballast. Moderate correction across the range.

Then Open the Edge Map

The edge map starts with the hull.

If the hull family is wrong, the delta is wrong. Hull Shape puts that decision in front of you before you run the study.

See the Edge Map →

Your hull. Your edge.

See the hull shape that matches your boat.

Explore Your Edge