SIST EN ISO 12217-2:2013

Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO 12217-2:2013)

This part of ISO 12217 specifies methods for evaluating the stability and buoyancy of intact (i.e. undamaged) boats. The flotation characteristics of boats vulnerable 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 vulnerability 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.

Kleine Wasserfahrzeuge - Stabilitäts- und Auftriebsbewertung und Kategorisierung - Teil 2: Segelboote ab 6 m Rumpflänge (ISO 12217-2:2013)

Dieser Teil von ISO 12217 legt Verfahren für die Beurteilung von Stabilität und Auftrieb des intakten (d. h.
unbeschädigten) Bootes fest. Ebenfalls sind darin die Auftriebseigenschaften solcher Boote erfasst, die
empfindlich gegen Vollschlagen sind.
Die Beurteilung der Stabilitäts- und Auftriebseigenschaften nach diesem Teil von ISO 12217 erlaubt es, dem
Boot eine Auslegungskategorie (A, B, C oder D) zuzuordnen, die seiner Auslegung und seiner maximalen
Zuladung entspricht.
Dieser Teil der ISO 12217 ist auf Boote anwendbar, die vorzugsweise durch Segel angetrieben werden (auch
wenn das Boot über eine Hilfsmaschine verfügt), und in einem Bereich von 6 m bis 24 m Rumpflänge liegen.
Er kann jedoch auch auf Boote von weniger als 6 m Rumpflänge angewendet werden, wenn sie
Mehrrumpfboote mit Wohneinrichtung sind oder sie bei Anwendung von ISO 12217-3 nicht die gewünschte
Auslegungskategorie erreichen, jedoch voll gedeckt sind und schnell-lenzende Rezesse entsprechend
ISO 11812 besitzen.
Ausgeschlossen von der Anwendung dieses Teils von ISO 12217 sind:
- Tragflügelboote und Luftkissenfahrzeuge
- aufblasbare und starre aufblasbare Boote bis 8 m Rumpflänge nach ISO 6185 mit Ausnahme der
Verweisungen, die sich in jener Norm auf bestimmte Abschnitte in ISO 12217 beziehen;
- Kanus, Kajaks oder sonstige Boote mit einer Breite von weniger als 1,1 m.
Sie enthält keine Angaben oder Beurteilungen zu den die Stabilität betreffenden Auswirkungen von
Abschleppen, Fischen, Ausbaggern oder Anheben; diese sollten, falls erforderlich, gesondert berücksichtigt
werden.

Petits navires - Évaluation et catégorisation de la stabilité et de la flottabilité - Partie 2: Bateaux à voiles d'une longueur de coque supérieure ou égale à 6 m (ISO 12217-2:2013)

L'ISO 12217-2:2013 spécifie les méthodes d'évaluation de la stabilité et de la flottabilité des bateaux à l'état intact (c'est à dire non endommagés). Les caractéristiques de flottabilité des bateaux vulnérables à l'envahissement sont également considérées.
L'évaluation des propriétés de stabilité et de flottabilité effectuée à l'aide de l'ISO 12217-2:2013 permettra d'attribuer à un bateau une catégorie de conception (A, B, C ou D) appropriée à sa conception et à sa charge maximale.
L'ISO 12217-2:2013 est principalement applicable aux bateaux propulsés majoritairement par des voiles (même s'ils sont équipés d'un moteur auxiliaire), d'une longueur de coque de 6 m à 24 m inclus. Elle peut cependant être appliquée aux bateaux de moins de 6 m, s'ils sont des multicoques habitables ou s'ils n'atteignent pas la catégorie de conception désirée spécifiée par l'ISO 12217‑3 et s'ils sont pontés et munis de cavités rapidement autovideuses conformes à l'ISO 11812.
Pour ce qui concerne les multicoques habitables, l'SO 12217-2:2013 comprend l'évaluation de la vulnérabilité à l'inversion, la définition d'un moyen d'échappée viable et les exigences de flottabilité à l'état inversé.
L'ISO 12217-2:2013 exclut:
les bateaux pneumatiques et semi-rigides couverts par l'ISO 6185, excepté lorsque l'ISO 6185 fait référence à des articles spécifiques de l'ISO 12217;
les gondoles et pédalos;
les planches de surf et planches à voiles; et
les hydrofoils et les bateaux stabilisés par des plans porteurs lorsqu'ils ne sont pas en mode à déplacement.
Elle n'inclut ni n'évalue les effets sur la stabilité provenant du remorquage, de la pêche, du dragage ou d'opérations de levage, qu'il est nécessaire de considérer séparément.

Mala plovila - Stabilnost in ocena vzgona ter kategorizacija - 2. del: Jadrnice s trupom, večjim ali enakim 6 m (ISO 12217-2:2013)

Ta del standarda ISO 12217 določa metode za oceno stabilnosti in vzgona brezhibnih (nepoškodovanih) čolnov. Zajete so tudi značilnosti plovnosti čolnov, ki so izpostavljeni zalivanju. Ocena značilnosti stabilnosti in vzgona z uporabo tega dela standarda ISO 12217 bo omogočila, da bo čoln vključen v konstrukcijsko kategorijo (A, B, C ali D), ki je ustrezna glede na konstrukcijo in največjo obremenitev. Ta del standarda ISO 12217 se uporablja predvsem za čolne na jadra (tudi če imajo nameščen pomožen motor) z dolžino trupa od 6 m do vključno 24 m. Uporablja se lahko tudi za čolne, krajše od 6 m, če so večtrupna bivalna plovila, ali kadar niso razvrščeni v želeno konstrukcijsko kategorijo, določeno v standardu ISO 12217-3, in imajo krov ter žlebove za hitro odvodnjavanje, ki so v skladu s standardom ISO 11812. V povezavi z večtrupnimi bivalnimi plovili ta del standarda ISO 12217 vključuje oceno izpostavljenosti prevrnitvi, navedbo ustreznih možnosti umika in zahteve za plovnost v prevrnjenem stanju. Ta del standarda ISO 12217 izključuje:
– napihljive čolne in napihljive čolne, ki imajo v spodnjem delu trupa togo enoto, ki jih obravnava standard ISO 6185, razen pri sklicih iz standarda ISO 6185 na določene točke standarda ISO 12217;
– gondole in čolne na pedala;
– deske, vključno z deskami na motorni pogon; ter
- hidrogliserje in čolne s stabilizacijskimi flapi, kadar ne delujejo v načinu izpodriva. OPOMBA Pri načinu izpodriva na čoln delujejo le hidrostatične sile. Ne vključuje ali ne vrednoti vpliva na stabilnost pri vlečenju, ribolovu, črpanju ali dvigovanju, pri katerih je treba ustreznost stabilnosti obravnavati posamezno.

General Information

• Status: Withdrawn
• Public Enquiry End Date: 04-Aug-2010
• Publication Date: 03-Apr-2013
• Withdrawal Date: 08-Dec-2015
• ICS: 47.080 - Small craft
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 09-Dec-2015
• Due Date: 01-Jan-2016
• Completion Date: 09-Dec-2015
• Directive: 2003/44/EC - Approximation of the laws, regulations and administrative provisions of the Member States relating to recreational craft
• Directive: 94/25/EC - Directive 94/25/EC of the European Parliament and of the Council of 16 June 1994 on the approximation of the laws, regulations and administrative provisions of the Member States relating to recreational craft
• Mandate: M/075 - Revised mandate to CEN for standardization in the field of recreational craft
• Ref Project: EN ISO 12217-2:2013 - Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO 12217-2:2013)

Relations

• Revised: SIST EN ISO 12217-2:2002 - Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO 12217-2:2002)
• Effective Date: 01-Jul-2010
• Replaced By: SIST EN ISO 12217-2:2016 - 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)
• Effective Date: 01-Jan-2016
• Replaces: SIST EN ISO 12217-2:2002 - Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing boats of hull length greater than or equal to 6 m (ISO 12217-2:2002)
• Effective Date: 01-May-2013

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 12217-2:2013
01-maj-2013
1DGRPHãþD
SIST EN ISO 12217-2:2002
0DODSORYLOD6WDELOQRVWLQRFHQDY]JRQDWHUNDWHJRUL]DFLMDGHO-DGUQLFHV
WUXSRPYHþMLPDOLHQDNLPP,62
Small craft - Stability and buoyancy assessment and categorization - Part 2: Sailing
boats of hull length greater than or equal to 6 m (ISO 12217-2:2013)
Kleine Wasserfahrzeuge - Stabilitäts- und Auftriebsbewertung und Kategorisierung - Teil
2: Segelboote ab 6 m Rumpflänge (ISO 12217-2:2013)
Petits navires - Évaluation et catégorisation de la stabilité et de la flottabilité - Partie 2:
Bateaux à voiles d'une longueur de coque supérieure ou égale à 6 m (ISO 12217-
2:2013)
Ta slovenski standard je istoveten z: EN ISO 12217-2:2013
ICS:
47.080 ýROQL Small craft
SIST EN ISO 12217-2:2013 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 12217-2:2013

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SIST EN ISO 12217-2:2013


EUROPEAN STANDARD
EN ISO 12217-2

NORME EUROPÉENNE

EUROPÄISCHE NORM
March 2013
ICS 47.080 Supersedes EN ISO 12217-2:2002
English Version
Small craft - Stability and buoyancy assessment and
categorization - Part 2: Sailing boats of hull length greater than
or equal to 6 m (ISO 12217-2:2013)
Petits navires - Évaluation et catégorisation de la stabilité et Kleine Wasserfahrzeuge - Stabilitäts- und
de la flottabilité - Partie 2: Bateaux à voiles d'une longueur Auftriebsbewertung und Kategorisierung - Teil 2:
de coque supérieure ou égale à 6 m (ISO 12217-2:2013) Segelboote ab 6 m Rumpflänge (ISO 12217-2:2013)
This European Standard was approved by CEN on 21 December 2012.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12217-2:2013: E
worldwide for CEN national Members.

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SIST EN ISO 12217-2:2013
EN ISO 12217-2:2013 (E)
Contents Page
Foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 94/25/EC as amended by Directive 2003/44/EC . 4

2

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SIST EN ISO 12217-2:2013
EN ISO 12217-2:2013 (E)
Foreword
This document (EN ISO 12217-2:2013) has been prepared by Technical Committee ISO/TC 188 "Small craft".
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by September 2013, and conflicting national standards shall be
withdrawn at the latest by September 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 12217-2:2002.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 12217-2:2013 has been approved by CEN as EN ISO 12217-2:2013 without any modification.
3

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SIST EN ISO 12217-2:2013
EN ISO 12217-2:2013 (E)
Annex ZA
(informative)

Relationship between this European Standard and the Essential
Requirements of EU Directive 94/25/EC as amended by Directive
2003/44/EC
This European Standard has been prepared under a mandate given to CEN by the European Commission to
provide one means of conforming to Essential Requirements of the New Approach Directive 94/25/EC as
amended by Directive 2003/44/EC.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one member state, compliance with the normative clauses of
this standard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption of
conformity with the relevant Essential Requirements of that Directive and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and EU Directives
Corresponding
Clauses/sub-clauses of this annexes/paragraphs of
Comments
European Standard Directive 94/25/EC as amended
by 2003/44/EC
Design categories A, B, C and D
Annex IA, Clause 3.2, Stability
defined in the standard are
and Freeboard, Clause 3.5,
considered to correspond to
5, 6, 7, Annex A, B, C, D Flooding, and Clauses 3.6 and
design categories A, B, C and D
3.2, maximum recommended
of Directive 94/25/EC as
load.
amended by 2003/44/EC.
Annex IA2, Clause 3.3, Buoyancy
6.9, 7.12, Annex D, E
and flotation.
7.13 Annex IA2, Clause 3.8, Escape
Annex IA2, Clause 2.5, Owner’s
Annex F
manual

WARNING: Other requirements and other EU Directives may be applicable to the product(s) falling
within scope of this standard.


4

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SIST EN ISO 12217-2:2013
INTERNATIONAL ISO
STANDARD 12217-2
Second edition
2013-03-01
Small craft — Stability and buoyancy
assessment and categorization —
Part 2:
Sailing boats of hull length greater than
or equal to 6 m
Petits navires — Évaluation et catégorisation de la stabilité et de la
flottabilité —
Partie 2: Bateaux à voiles d’une longueur de coque supérieure ou égale
à 6 m
Reference number
ISO 12217-2:2013(E)
©
ISO 2013

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SIST EN ISO 12217-2:2013
ISO 12217-2:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

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SIST EN ISO 12217-2:2013
ISO 12217-2:2013(E)
Contents Page
Foreword . v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.1 Primary . 2
3.2 Hazards . 4
3.3 Downflooding . 4
3.4 Dimensions, areas and angles . 5
3.5 Condition, mass and volume . 6
3.6 Other terms and definitions . 9
4 Symbols . 11
5 Procedure .13
5.1 Maximum load .13
5.2 Sailing or non-sailing .13
5.3 Tests, calculations and requirements to be applied .13
5.4 Variation in input parameters .13
6 Requirements for monohull boats .13
6.1 Requirements to be applied .13
6.2 Downflooding .14
6.3 Recess size .18
6.4 Minimum righting energy .21
6.5 Angle of vanishing stability .21
6.6 Stability index (STIX) .23
6.7 Knockdown-recovery test .26
6.8 Wind stiffness test .27
6.9 Flotation requirements .30
6.10 Capsize-recovery test .30
6.11 Detection and removal of water .32
7 Requirements for catamarans, trimarans and form-stable monohulls .33
7.1 Requirements to be applied .33
7.2 Downflooding openings .33
7.3 Downflooding height .33
7.4 Recess size .33
7.5 Stability information .33
7.6 Safety signs .34
7.7 Bare poles factor .35
7.8 Rolling in breaking waves .35
7.9 Pitchpoling .36
7.10 Diagonal stability .36
7.11 Habitable multihull boats .36
7.12 Buoyancy when inverted .38
7.13 Escape after inversion .38
8 Safety signs .39
9 Application .40
9.1 Deciding the design category .40
9.2 Meaning of the design categories .40
Annex A (normative) Full method for required downflooding height.42
Annex B (normative) Methods for calculating downflooding angle .44
Annex C (normative) Determining the curve of righting moments .47
© ISO 2013 – All rights reserved iii

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SIST EN ISO 12217-2:2013
ISO 12217-2:2013(E)
Annex D (normative) Method for calculating reserve of buoyancy after inversion or swamping .50
Annex E (normative) Flotation material and elements .52
Annex F (normative) Information for owner’s manual .54
Annex G (normative) Determination of safe wind speed information .58
Annex H (normative) Determination of longitudinal righting characteristics .61
Annex I (informative) Summary of requirements .64
Annex J (informative) Worksheets .67
Bibliography .86
iv © ISO 2013 – All rights reserved

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SIST EN ISO 12217-2:2013
ISO 12217-2:2013(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 12217-2 was prepared by Technical Committee ISO/TC 188, Small craft.
This second edition cancels and replaces the first edition (ISO 12217-2:2002), which has been technically revised.
ISO 12217 consists of the following parts, under the general title Small craft — Stability and buoyancy
assessment and categorization:
— Part 1: Non-sailing boats of hull length greater than or equal to 6 m
— Part 2: Sailing boats of hull length greater than or equal to 6 m
— Part 3: Boats of hull length less than 6 m
© ISO 2013 – All rights reserved v

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SIST EN ISO 12217-2:2013
ISO 12217-2:2013(E)
Introduction
This part of ISO 12217 enables the determination of limiting environmental conditions for which an individual
boat has been designed.
It enables the boat to be assigned to a design category appropriate to its design and maximum load. The
design categories used align with those in the Recreational Craft Directive of the European Union, EU Directive
94/25/EC as amended by Directive 2003/44/EC.
Annex J provides worksheets to assist in the systematic assessment of a boat according to this part of ISO 12217.
vi © ISO 2013 – All rights reserved

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SIST EN ISO 12217-2:2013
INTERNATIONAL STANDARD ISO 12217-2:2013(E)
Small craft — Stability and buoyancy assessment and
categorization —
Part 2:
Sailing boats of hull length greater than or equal to 6 m
CAUTION — Compliance with this part of ISO 12217 does not guarantee total safety or total freedom
of risk from capsize or sinking.
IMPORTANT — The electronic file of this document contains colours which are considered to be
useful for the correct understanding of the document. Users should therefore consider printing this
document using a colour printer.
1 Scope
This part of ISO 12217 specifies methods for evaluating the stability and buoyancy of intact (i.e. undamaged)
boats. The flotation characteristics of boats vulnerable 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 vulnerability 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.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 2896:2001, Rigid cellular plastics — Determination of water absorption
ISO 3864-1, Graphical symbols – Safety colours and safety signs – Part 1: Design principles for safety signs
and safety markings
© ISO 2013 – All rights reserved 1

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SIST EN ISO 12217-2:2013
ISO 12217-2:2013(E)
ISO 8666, Small craft — Principal data
ISO 9093-1, Small craft — Seacocks and through-hull fittings — Part 1: Metallic
ISO 9093-2, Small craft — Seacocks and through-hull fittings — Part 2: Non-metallic
ISO 9094 (all parts), Small craft — Fire protection
ISO 10240, Small craft — Owner’s manual
ISO 11812, Small craft — Watertight cockpits and quick-draining cockpitsI
ISO 12216, Small craft — Windows, portlights, hatches, deadlights and doors — Strength and watertightness
requirements
ISO 12217-1:2013, Small craft — Stability and buoyancy assessment and categorization — Part 1: Non-sailing
boats of hull length greater than or equal to 6 m
ISO 12217-3:2013, Small craft — Stability and buoyancy assessment and categorization — Part 3: Boats of
hull length less than 6 m
ISO 14946, Small craft — Maximum load capacity
ISO 15083, Small craft — Bilge-pumping systems
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE The meanings of certain symbols used in the definitions are given in Clause 4.
3.1 Primary
3.1.1
design category
description of the sea and wind conditions for which a boat is assessed to be suitable by this part of ISO 12217
NOTE See also 9.2.
3.1.2
sailing boat
boat for which the primary means of propulsion is by wind power, having reference sail area (3.4.8)
2/3
A ≥ 0,07(m )
S LDC
NOTE m is the mass of the boat in the maximum load condition, expressed in kilograms.
LDC
3.1.3
catamaran
boat with two main load-bearing hulls
EXAMPLE Boats with a centreline or bridge-deck nacelle which supports less than 30 % of the mass in the maximum
load condition are considered to be catamarans. Proas are asymmetric catamarans.
3.1.4
trimaran
boat with a centre main hull and two sidehulls in which the centre hull, when the boat is upright, supports 30 %
or more of the mass in the maximum load condition
3.1.5
recess
volume open to the air that might retain water within the range of loading conditions and corresponding trims
EXAMPLE Cockpits, wells, open volumes or areas bounded by bulwarks or coamings.
2 © ISO 2013 – All rights reserved

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SIST EN ISO 12217-2:2013
ISO 12217-2:2013(E)
NOTE 1 Cabins, shelters or lockers provided with closures according to the requirements of ISO 12216 are not recesses.
NOTE 2 Cockpits that are open aft to the sea are considered to be recesses. Flush decks without bulwarks or coamings
are not recesses.
3.1.6
quick-draining recess
recess fulfilling all the requirements of ISO 11812 for “quick-draining cockpits and recesses”
NOTE 1 According to its characteristics, a cockpit may be considered to be quick-draining for one design category, but
not for a higher category.
NOTE 2 ISO 11812 contains requirements with which most sailing dinghies cannot comply.
3.1.7
watertight recess
recess fulfilling all the requirements of ISO 11812 for “watertight cockpits and recesses”
NOTE This term only implies requirements in respect of watertightness and sill heights, but not those for drainage.
3.1.8
fully enclosed boat
boat in which the horizontal projection of the sheerline area comprises any combination of
— watertight deck and superstructure, and/or
— quick-draining recesses which comply with ISO 11812, and/or
— watertight recesses complying with ISO 11812 with a combined volume of less than (L B F )/40, and
H H M
all closing appliances have their degree of watertightness in accordance with ISO 12216
NOTE The size of recesses permitted for boats of design category A, B or some boats of design category C is
restricted by the requirements of 6.3.
3.1.9
habitable boat
boat having a fully enclosed cabin with rigid roof fitted with one or more bunks, benches, pipecots, hammocks
or similar locations that can be used for sleeping when the boat is under way
NOTE 1 A boat is considered to be “habitable” if a fabric closure is used instead of a rigid door, or the cabin has fabric sides.
NOTE 2 The following are not considered to render a boat “habitable”:
— a cockpit tent, or
— an open-sided cuddy intended to provide limited protection from spray, provided it is not fitted with fabric closures all round.
NOTE 3 Locations used for sleeping have minimum dimensions of 1,5 m diagonal length, 0,4 m width at the widest
point, and with a minimum headroom of 0,4 m over the length. The cabin sole and compartments designated by the builder
to be used exclusively for storage and referenced in the owner’s manual are not included.
3.1.10
habitable part of a boat
spaces within a habitable boat with rigid roof that are fitted with a toilet or in which there is provision for any of
the following activities: sitting, sleeping, cooking, eating, washing, navigation, steering
NOTE Compartments designated by the builder to be used exclusively for storage and referenced in the owner’s
manual are not included.
© ISO 2013 – All rights reserved 3

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SIST EN ISO 12217-2:2013
ISO 12217-2:2013(E)
3.2 Hazards
3.2.1
capsize
event when a boat reaches any heel angle from which it is unable to recover to equilibrium near the upright
without intervention
3.2.2
knockdown
event when a boat reaches a heel angle sufficient to immerse the masthead, and from which it may or may not
recover without intervention
3.2.3
inversion
event when a boat becomes upside down
3.3 Downflooding
3.3.1
downflooding opening
opening in the hull or deck (including the edge of a recess) that might admit water into the interior or bilge of a
boat, or a recess, apart from those excluded in 6.2.1.6
3.3.2
downflooding angle
f
D
angle of heel at which downflooding openings (apart from those excluded in 6.2.1.6) become immersed, when
the boat is in calm water and in the appropriate loading condition at design trim
NOTE 1 Where openings are not symmetrical about the centreline of the boat, the case resulting in the smallest
angle is used.
NOTE 2 The following are specifically considered:
— f is the downflooding angle to any downflooding opening
D
— f is the angle of heel at which openings which are not marked “KEEP SHUT WHEN UNDER WAY” having a
DA
2
combined total area, expressed in square centimetres (cm ), greater than the number represented by 1,2L B F first
H H M
become immersed;
— f is the downflooding angle at which recesses which are not quick-draining begin to fill with water;
DC
2
— f is the downflooding angle at which any main access hatch (i.e. having an opening area greater than 0,18 m each)
DH
giving direct access to the main open air helm position first begins to become immersed.
NOTE 3 Downflooding angle is expresse
...