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BS EN ISO 12217-1:2017:2018 Edition

BS EN ISO 12217-1:2017:2018 Edition

$215.11

Small craft. Stability and buoyancy assessment and categorization – Non-sailing boats of hull length greater than or equal to 6 m

Published By Publication Date Number of Pages
BSI 2018 88
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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 total load.

This part of ISO 12217 is principally applicable to boats propelled by human or mechanical power of 6 m up to 24 m hull length. However, it can also be applied to boats of under 6 m 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;

  • personal watercraft covered by ISO 13590 and other similar powered craft;

  • gondolas and pedalos;

  • sailing surfboards;

  • surfboards, including powered surfboards;

  • hydrofoils and hovercraft when not operating in the displacement mode; and

  • submersibles.

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.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 2013/53/EU aimed to be covered
9 Foreword
11 Introduction
12 1 Scope
13 2 Normative references
3 Terms and definitions
3.1 Primary
15 3.2 Downflooding
16 3.3 Dimensions, areas and angles
18 3.4 Condition, mass and volume
20 3.5 Other terms and definitions
23 4 Symbols
24 5 Procedure
5.1 Maximum load
5.2 Sailing or non-sailing
25 5.3 Tests and calculations to be applied
26 5.4 Variation in input parameters
6 Tests, calculations and requirements
6.1 Downflooding
6.1.1 Downflooding openings
28 6.1.2 Downflooding height
31 6.1.3 Downflooding angle
6.2 Offset-load test
6.2.1 Objective
32 6.2.2 Test
6.2.3 Requirements
6.3 Resistance to waves and wind
6.3.1 General
6.3.2 Rolling in beam waves and wind
33 6.3.3 Resistance to waves
34 6.4 Heel due to wind action
6.4.1 General
6.4.2 Calculation
35 6.4.3 Requirement
6.5 Recess size
6.5.1 Application
36 6.5.2 Simplified methods
37 6.5.3 Direct calculation method
38 6.5.4 Design category C boats using option 6
6.6 Habitable multihull boats
6.7 Motor sailers
6.7.1 General
39 6.7.2 Requirement
6.8 Flotation requirements
6.9 Detection and removal of water
40 7 Application
7.1 Deciding the design category
7.2 Meaning of the design categories
42 Annex A (normative) Full method for required downflooding height
44 Annex B (normative) Method for offset-load test
52 Annex C (normative) Methods for calculating downflooding angle
54 Annex D (normative) Method for measuring freeboard margin
56 Annex E (normative) Determining the curve of righting moments
59 Annex F (normative) Method for level flotation test
64 Annex G (normative) Flotation material and elements
66 Annex H (normative) Information for owner’s manual
68 Annex I (informative) Summary of requirements
69 Annex J (informative) Worksheets
86 Annex K (informative) Illustration of recess retention level
87 Bibliography

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BS EN ISO 12217-1:2017
$215.11