Tune the stability curve for your hull family.

Three knobs from GZ curve analysis. Form stability fraction, RM correction onset, and GZ rolloff rate.

Select a Delft hull on the Boat tab and they seed automatically. Form hulls get a higher fraction, lower onset, steeper rolloff. Ballast hulls stay closer to the certificate RM. Adjust for your specific hull.

SailEdge Boat Tuning Righting and Rudder Control panel showing Form stability fraction, RM correction onset, and GZ rolloff rate — Righting & Rudder Control — RM stability profile

Hull Geometry

Edit the section you can see.

Select a station. Compare reference against tuned. Edit directly — Beam scale, Sheer lift, Rail lift, Keel drop.

The selected section highlights on the 3D stage. Save the hull-section viewmodel as a portable artifact. Reload it later from the same geometry basis.

SailEdge cross-section editor showing reference versus tuned section overlay with Beam scale, Sheer lift, Rail lift, and Keel drop controls — Cross-section editor — reference vs. tuned

Hydro Authority

The Delft Series backbone is the authority.

The runtime resolves upright hull, appendage, heel influence, sideforce and leeway, keel-rudder interaction, and wave-added resistance through governed DSH lanes. Each lane is individually tunable.

Every knob carries always-visible help — what it controls, what happens when you move it, when to adjust it.

SailEdge Boat Tuning DSH Hydro panel showing always-visible help text below each tuning knob — DSH Runtime Hydro — always-visible help

Portable Intent

Tune once. Save. Distribute.

NA Tuning Profile

Bounded platform calibration. Load it on any boat. Sail lofts overlay their calibration on your foundation.

Hull Section Viewmodel

Cross-section editing state. Reload the same geometry basis without touching the canonical boat.

Boat JSON

Full study snapshot when the whole context must travel — boat, tuning, hull sections, and study state.

Your platform. Calibrated.

Stability

Geometry

Hydro

Save