Small craft - Stability and buoyancy assessment and categorization - Part 3: Boats of hull length less than 6 m (ISO 12217-3:2015); German version EN ISO 12217-3:2015 / Note: To be replaced by DIN EN ISO 12217-3 (2021-02).

2Scope / Description

This part of ISO 12217 specifies the methods for assessing the stability and buoyancy of intact (i.e., undamaged) vessels. It also includes the buoyancy characteristics of flipping vessels. Assessment of stability and buoyancy characteristics according to this part of ISO 12217 allows a vessel to be assigned to a design category (C or D) appropriate to its design and maximum load. This part of ISO 12217 applies to human-powered or engine-powered vessels less than 6 meters in length, excluding habitable multihull sailing vessels. Vessels less than 6 meters in length that are fully enclosed and have a high-speed drainage deck conforming to ISO 11812 may be assessed according to ISO 12217-1 or ISO 12217-2 (for non-sailing and sailing vessels respectively), and may thus be assigned to a higher design category. Regarding habitable multihull vessels, this part of ISO 12217 includes the assessment of capsizing risk, the definition of feasible escape routes, and buoyancy requirements in a kilo-up condition. Vessels not covered by this part of ISO 12217 include: inflatable boats and rigid inflatable boats (RIBs) conforming to ISO 6185, except where specific sections of ISO 12217 are referenced; jet skis and other similar powered water vehicles conforming to ISO 13590; water toys; rowboats and kayaks; pedal boats and canoes; surfboards; surfboards (including motorized surfboards); fovea boats, planing boats, and hovercraft (unless operating in hydrostatic mode); and submersibles. Note: Hydrostatic mode refers to the vessel operating solely under hydrostatic support. This part of ISO 12217 does not contain data or assessments regarding the stability effects of towing, fishing, dredging, or crane operations; these should be considered separately if necessary.