Heeltrace: Vessel Stability

About Heeltrace: Vessel Stability

Heeltrace: Vessel Stability is a focused, fully on-device app. An offline small-vessel hydrostatics and loading workbench for displacement, trim, heel, free-surface effects, righting-arm curves, and load cases.

KEY FEATURES
- Editable vessel hydrostatic stations
- Load-case and tank ledger
- Corrected GM and heel estimate
- Trim and draft-change screening
- Righting-arm scenario plot
- Editable complete sample and local project persistence
- CSV input plus local PDF and data export
- Fifty-two original offline reference plates

ONE-TIME AND PRIVATE
- One paid download; no subscription or in-app purchase
- No account, advertising, analytics, tracking, or developer-operated backend
- Core features and bundled content work offline
- Work remains on device unless you deliberately share or export it through an Apple system interface

Educational and preliminary planning aid. Use approved stability information and a qualified naval architect for operation or certification.