Standards › Stability

IMO intact stability

Intact stability — GM, righting arm, wind heel

Ask Deckhand to check a floating platform's intact stability — metacentric height, righting-arm curve and wind heel — against the IMO criteria.

Run it on Open Deck

What you can ask it to do

  • Compute metacentric height (GM) and the righting-arm (GZ) curve.
  • Check wind-heel and area-ratio criteria against the IMO intact-stability rules.
  • Report the governing criterion and the margin.

Related standards

IMO IS Code GM Righting arm (GZ) Wind heel Intact stability

Part of Floating & Marine Systems · see the platform engine

Questions

What governs intact stability?

The IMO Intact Stability (IS) Code criteria — minimum GM, righting-arm area ratios and a wind-heel check — adapted for offshore floaters and MODUs.

What does Deckhand return?

GM, the GZ curve, the wind-heel and area-ratio checks, and the governing criterion with its margin.

Run IMO intact stability on your own inputs

Open Deck is free — bring your numbers and check the result against your own methods.

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