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EVS-EN ISO 12217-2:2017

Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO 12217-2:2015)

General information

Valid from 16.10.2017
Base Documents
ISO 12217-2:2015; EN ISO 12217-2:2017

Standard history

Status
Date
Type
Name
Main
prEN ISO 12217-2
16.10.2017
Main
03.12.2015
Main
This part of ISO 12217 specifies methods for evaluating the stability and buoyancy of intact (i.e.
undamaged) boats. The flotation characteristics of boats susceptible to swamping are also encompassed.
The evaluation of stability and buoyancy properties using this part of ISO 12217 will enable the boat to
be assigned to a design category (A, B, C or D) appropriate to its design and maximum load.
This part of ISO 12217 is principally applicable to boats propelled primarily by sail (even if fitted with
an auxiliary engine) of 6 m up to and including 24 m hull length. However, it can also be applied to boats
less than 6 m if they are habitable multihulls or may be applied if they do not attain the desired design
category specified in ISO 12217-3 and they are decked and have quick-draining recesses which comply
with ISO 11812.
In relation to habitable multihulls, this part of ISO 12217 includes assessment of susceptibility to
inversion, definition of viable means of escape and requirements for inverted flotation.
This part of ISO 12217 excludes:
— inflatable and rigid-inflatable boats covered by ISO 6185, except for references made in ISO 6185 to
specific clauses of ISO 12217;
— gondolas and pedalos;
— surfboards including sailing surfboards; and
— hydrofoils and foil stabilized boats when not operating in the displacement mode.
NOTE Displacement mode means that the boat is only supported by hydrostatic forces.
It does not include or evaluate the effects on stability of towing, fishing, dredging or lifting operations,
which need to be separately considered if appropriate.

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