Ships and marine technology — Sea anchors for survival craft and rescue boats

ISO 17339:2002 specifies requirements for the design, performance and prototype testing of sea anchors fitted to survival craft (lifeboats and liferafts) and rescue boats in accordance with the IMO International Life-Saving Appliance Code.

Navires et technologie maritime — Ancres flottantes pour embarcations de sauvetage et canots de secours

General Information

Status
Withdrawn
Publication Date
12-Nov-2002
Withdrawal Date
12-Nov-2002
Current Stage
9599 - Withdrawal of International Standard
Start Date
19-Jul-2018
Completion Date
19-Jul-2018
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INTERNATIONAL ISO
STANDARD 17339
First edition
2002-11-15
Ships and marine technology — Sea
anchors for survival craft and rescue boats
Navires et technologie maritime — Ancres flottantes pour embarcations de
sauvetage et canots de secours
Reference number
ISO 17339:2002(E)
© ISO 2002
---------------------- Page: 1 ----------------------
ISO 17339:2002(E)
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ii ISO 2002 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 17339:2002(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 3.

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 International Standard may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

International Standard ISO 17339 was prepared by Technical Committee ISO/TC 8, Ships and marine technology,

Subcommittee SC 1, Lifesaving and fire protection.
ISO 2002 – All rights reserved iii
---------------------- Page: 3 ----------------------
INTERNATIONAL STANDARD ISO 17339:2002(E)
Ships and marine technology — Sea anchors for survival craft and
rescue boats
1 Scope

This International Standard specifies requirements for the design, performance and prototype testing of sea anchors

fitted to survival craft (lifeboats and liferafts) and rescue boats in accordance with the IMO International Life-Saving

Appliance Code.
2 Normative reference

The following normative document contains provisions which, through reference in this text, constitute provisions of

this International Standard. For dated references, subsequent amendments to, or revisions of, this publication do not

apply. However, parties to agreements based on this International Standard are encouraged to investigate the

possibility of applying the most recent edition of the normative document indicated below. For undated references,

the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of

currently valid International Standards.
IMO International Life-Saving Appliance (LSA) Code
3 Term and definition

For the purposes of this International Standard, the following term and definition applies.

3.1
sea anchor

device to stabilize the motion and to reduce wind-driven drift of a waterborne craft

4 Design and performance criteria

4.1 A sea anchor shall generally be in the form of a cone or a truncated cone, as specified in Figure 1 and Table 1.

Alternative designs that meet all of the performance requirements of this International Standard may be accepted. A

sea anchor shall develop the minimum drag forces specified in Table 2, when tested in accordance with 5.2.

4.2 The fabric used in the construction of the sea anchor shall be porous and rotproof, and shall allow a water

2 2

penetration of between 100 l/s/m and 120 l/s/m when tested in accordance with 5.4.

4.3 The towing line used to secure the sea anchor to a survival craft or rescue boat shall be inherently rotproof and

of braided construction. It shall be at least 30 m long, not less than 8 mm in diameter and have a breaking load

including attachments and knots of not less than:
— 7,5 kN for liferafts of capacity up to 10 persons;
— 10,0 kN for liferafts of capacity 11 persons to 25 persons; or

— 10,0 kN for all other sea anchors, or have a safety factor of 3:1 based on a towing strain at 6kn, whichever is the

greater.
1) Available from the International Maritime Organization.
ISO 2002 – All rights reserved
...

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