SANS 12217-2-2008 Small craft - Stability and buoyancy assessment and categorization Part 2 Sailing boats of hull length greater than or equal to 6 m《小艇 稳定性和浮力评估和分类 第2部分 船体长度大于或等于6.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21990-1 SANS 12217-2:2008 Edition 1 ISO 12217-2:2002 Edition 1SOUTH AFRICAN NATIONAL STANDARD Small craft Stability and buoyancy assessmen

4、t and categorization Part 2: Sailing boats of hull length greater than or equal to 6 m This national standard is the identical implementation of ISO 12217-2:2002, and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lateg

5、an Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 12217-2:2008 Edition 1 ISO 12217-2:2002 Edition 1 Table of changes Change No. D

6、ate Scope National foreword This South African standard was approved by National Committee SABS TC 188, Small craft, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in September 2008. This standard ma

7、y only be used and printed by approved subscription and freemailing clients of the SABS. Reference number ISO 12217-2:2002(E) ISO 2002INTERNATIONAL STANDARD ISO 12217-2 First edition 2002-04-01 Small craft Stability and buoyancy assessment and categorization Part 2: Sailing boats of hull length grea

8、ter than or equal to 6 m Petits navires valuation et catgorisation de la stabilit et de la flottabilit Partie 2: Bateaux voiles dune longueur de coque suprieure ou gale 6 m SANS 12217-2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 12

9、217-2:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloadi

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12、 below. ISO 2002 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 ISOs member b

13、ody 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 copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2002 All rights reserved SANS 12217-2:2008This standard may only be used and printed by approve

14、d subscription and freemailing clients of the SABS.ISO 12217-2:2002(E) ISO 2002 All rights reserved iiiContents Page Forewordv Introductionvi 1 Scope 1 2 Normative references1 3 Terms and definitions .2 3.1 Primary2 3.2 Hazards.3 3.3 Downflooding.3 3.4 Dimensions, areas and angles .4 3.5 Condition,

15、mass and volume5 3.6 Other terms and definitions7 4 Symbols9 5 Procedure .10 5.1 Maximum total load .10 5.2 Sailing or non-sailing 10 5.3 Tests, calculations and requirements to be applied10 6 Requirements for monohull boats .10 6.1 Requirements to be applied .10 6.2 Downflooding.12 6.3 Angle of van

16、ishing stability and minimum mass .14 6.4 Stability index (STIX).16 6.5 Knockdown-recovery test.19 6.6 Wind stiffness test.20 6.7 Flotation requirements22 6.8 Capsize-recovery test22 7 Requirements for catamarans and trimarans.23 7.1 Requirements to be applied .23 7.2 Downflooding openings23 7.3 Dow

17、nflooding height.23 7.4 Stability information24 7.5 Warning symbols.24 7.6 Buoyancy when inverted 24 7.7 Breaking waves25 8 Application .25 8.1 Deciding the design category 25 8.2 Meaning of the design categories (see Table 8) .25 Annex A (normative) Full method for required downflooding height .27

18、Annex B (normative) Methods for calculating downflooding angle 29 Annex C (normative) Determining properties of the curve of righting levers 31 Annex D (normative) Method for calculating reserve of buoyancy after inversion or flooding .33 Annex E (normative) Flotation material and elements35 Annex F

19、 (normative) Information for owners manual 37 Annex G (informative) Determining wind heeling information.40 Annex H (informative) Summary of requirements .42 SANS 12217-2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 12217-2:2002(E) i

20、v ISO 2002 All rights reserved Annex I (informative) Worksheets .45 Bibliography 59 SANS 12217-2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 12217-2:2002(E) ISO 2002 All rights reserved vForeword ISO (the International Organization

21、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 t

22、he 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. Interna

23、tional Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. 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. Publicatio

24、n 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 part of ISO 12217 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such pate

25、nt rights. International Standard ISO 12217-2 was prepared by Technical Committee ISO/TC 188, Small craft. 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 equ

26、al 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 Annexes A, B, C, D, E and F form a normative part of this part of ISO 12217. Annexes G, H and I are for information only. SANS 12217-2:2008This standard may only be used and printed

27、 by approved subscription and freemailing clients of the SABS.ISO 12217-2:2002(E) vi ISO 2002 All rights reserved Introduction This part of ISO 12217 enables the determination of limiting environmental conditions for which an individual boat has been designed. SANS 12217-2:2008This standard may only

28、 be used and printed by approved subscription and freemailing clients of the SABS.INTERNATIONAL STANDARD ISO 12217-2:2002(E) ISO 2002 All rights reserved 1Small craft Stability and buoyancy assessment and categorization Part 2: Sailing boats of hull length greater than or equal to 6 m CAUTION Compli

29、ance with this part of ISO 12217 does not guarantee total safety or total freedom of risk from capsize or sinking. 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 swampin

30、g 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 applicable to boats propelled primarily by sail (even

31、 if fitted with an auxiliary engine) of 6 m up to and including 24 m hull length. However, it may also be applied to boats of under 6 m if they are habitable multihulls or if they do not attain the desired design category specified in ISO 12217-3 and they are decked and have quick-draining recesses

32、which comply with ISO 11812. This part of ISO 12217 excludes inflatable and rigid-inflatable boats up to 8 m covered by ISO 6185, canoes, kayaks or other boats with a beam of less than 1,1 m. It does not include or evaluate the effects on stability of towing, fishing, dredging or lifting operations,

33、 which should be separately considered if appropriate. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 12217. For dated references, subsequent amendments to, or revisions of, any of these pub

34、lications do not apply. However, parties to agreements based on this part of ISO 12217 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to appli

35、es. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 2896:2001, Rigid cellular plastics Determination of water absorption ISO 8666: 1) , Small craft Principal data ISO 9093-1:1994, Small craft Seacocks and through-hull fittings Part 1: Metallic 1) To be publi

36、shed. SANS 12217-2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 12217-2:2002(E) 2 ISO 2002 All rights reservedISO 9093-2: 1) , Small craft Seacocks and through-hull fittings Part 2: Non-metallic ISO 9094-1: 1) , Small craft Fire prot

37、ection Part 1: Craft with a hull length of up to and including 15 m ISO 9094-2: 1) , Small craft Fire protection Part 2: Craft with a hull length of over 15 m ISO 10240:1995 2 ) , Small craft Owners manual ISO 11812:2001, Small craft Watertight cockpits and quick-draining cockpits ISO 12216: 1) , Sm

38、all craft Windows, portlights, hatches, deadlights and doors Strength and tightness requirements ISO 14946:2001, Small craft Maximum load capacity IMO Resolution MSC.81(70) Revised Recommendation on Testing of Life-Saving Appliances 3 Terms and definitions For the purposes of this part of ISO 12217,

39、 the following terms and definitions apply. 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 8.2. 3.1.2 saili

40、ng boat boat for which the primary means of propulsion is by wind power, having A SW 0,07(m LDC ) 2/33.1.3 catamaran boat with two main load-bearing hulls EXAMPLE Boats with a centreline or bridge-deck nacelle which supports less than 30 % of the total loaded displacement mass are considered to be c

41、atamarans. 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 total loaded displacement mass 3.1.5 recess any volume open to the sky that may retain water EXAMPLE Cockpits, we

42、lls, open volumes or areas bounded by bulwarks or coamings. NOTE Cabins, shelters or lockers provided with closures according to the requirements of ISO 12216 are not recesses. 2) Undergoing revision. SANS 12217-2:2008This standard may only be used and printed by approved subscription and freemailin

43、g clients of the SABS.ISO 12217-2:2002(E) ISO 2002 All rights reserved 33.1.6 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

44、 category, but maybe not for a higher one. 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

45、watertightness and sill heights, but not those for drainage. 3.1.8 fully decked 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 c

46、omplying with ISO 11812 with a combined volume of less than L H B H F M /40, all closing appliances being watertight in accordance with ISO 12216. NOTE The plan area of recesses permitted for boats of design category A or B is restricted by the requirements of 6.1.5. 3.2 Hazards 3.2.1 capsize event

47、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 wh

48、en a boat becomes upside down 3.3 Downflooding 3.3.1 downflooding opening any opening (including the edge of a recess) that may admit water into the interior or bilge of a boat, or a recess, apart from those excluded in 6.2.1.1 3.3.2 downflooding angle f Dangle of heel at which the downflooding open

49、ings described in 6.2.1.1 become immersed, when the boat is in calm water and in the appropriate loading condition at design trim SANS 12217-2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 12217-2:2002(E) 4 ISO 2002 All rights reservedNOTE 1 Where openings are not symmetrical about the centreline of the boat, the case resulting in the smallest angle is used. The following are specifically consider