Structural & Stability
Cleats Calculator
Calculate cleat sizing and spacing requirements for mooring and anchoring fittings.
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GZ Max Calculator
Determine the maximum righting lever (GZ) for stability assessment under the RCD.
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Object Avoidance
Check helmsman field of vision and object avoidance requirements for powered craft.
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Fuel Systems
Metal Fuel Tanks
Compliance checklist for metallic fixed fuel tanks — materials, installation, and testing requirements.
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Non-Metal Fuel Tank
Checklist for non-metallic diesel tanks outside the engine room — specific material and installation checks.
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Petrol Ventilation
Calculate petrol engine space ventilation requirements to prevent dangerous vapour accumulation.
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LPG Ventilation
Assess LPG system ventilation for galleys and enclosed spaces on recreational craft.
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Electrical & Systems