EN ISO 8848:2022

Small craft - Remote mechanical steering systems (ISO 8848:2022)

This document specifies design, construction, installation and test requirements for remote mechanical cable steering systems and the output ram interface point to rudders, jet drives, outboard and sterndrive engines for small craft.
It is applicable to three distinct classes of steering systems for use on various types of craft:
—    standard duty steering systems, for small craft with single and twin installations of outboard engines with a total over 15 kW power, and with rudders, sterndrives and water-jet drives;
—    light duty steering systems, for small craft with a single outboard engine of 15 kW to 40 kW power;
—    mini-jet steering systems, excluding personal watercraft.
NOTE      Standard and light duty steering systems are mechanically interchangeable. A standard duty steering system can be used on a craft designed for a light duty system. However, a light duty steering system cannot be used on a craft that requires a standard duty steering system. Mini-jet steering systems are mechanically differentiated from the previously mentioned systems and can only be used on mini-jet craft as defined in this document.
This document does not address emergency means for steering the craft.

Kleine Wasserfahrzeuge - Steueranlagen (ISO 8848:2022)

Dieses Dokument legt Anforderungen an Entwurf, Konstruktion, Montage und Prüfung von mechanischen Kabelsteueranlagen sowie die Kupplungsstelle des Endbeschlages des Steuerkabels zu Rudern, Strahlantrieben, Außenbordmotoren und Z Antriebsmotoren für kleine Wasserfahrzeuge fest.
Es ist anwendbar für drei unterschiedliche Klassen von Steueranlagen für den Einsatz auf diversen Wasserfahrzeugtypen:
   Steueranlagen in Standardausführung für kleine Wasserfahrzeuge mit Einzel- und Doppel-Außenbord¬motoren mit einer Gesamtleistung von mehr als 15 kW sowie mit Rudern, Z Antrieben und Wasserstrahlantrieben;
   Steueranlagen in leichter Ausführung für kleine Wasserfahrzeuge mit einem Außenbordmotor mit einer Leistung von 15 kW bis 40 kW;
   Mini-Jet-Steueranlagen mit Ausnahme von Wasserskootern.
ANMERKUNG   Steueranlagen in Standard- und leichter Ausführung sind mechanisch austauschbar. Eine Steueranlage in Standardausführung kann auch in einem Wasserfahrzeug verwendet werden, das für eine Steueranlage in leichter Ausführung entworfen wurde. Eine Steueranlage in leichter Ausführung kann jedoch nicht in einem Wasserfahrzeug verwendet werden, das eine Steueranlage in Standardausführung erfordert. Mini-Jet-Steueranlagen unterscheiden sich mechanisch von den zuvor genannten Anlagen und können nur in Mini-Jet-Wasserfahrzeugen nach diesem Dokument verwendet werden.
Dieses Dokument befasst sich nicht mit Vorrichtungen zum Steuern des Wasserfahrzeugs im Notfall.

Petits navires - Systèmes de direction mécaniques commandés à distance (ISO 8848:2022)

Le présent document spécifie les exigences relatives à la conception, la construction, l’installation et les essais des systèmes de direction mécaniques commandés à distance par câbles, et aux points d’interface entre le vérin de sortie et les gouvernails, hydrojets, moteurs hors‑bord et moteur à embase de propulsion arrière pour les petits navires.
Il s’applique à trois classes distinctes de systèmes de direction pour une utilisation sur différents types de bateaux :
—    les systèmes de direction à utilisation standard, pour les petits navires avec installations monomoteur et bimoteurs hors‑bord d’une puissance totale supérieure à 15 kW, et avec des gouvernails, embases de propulsion arrière et dispositif de propulsion par hydrojet ;
—    les systèmes de direction à utilisation légère, pour petits navires à un seul moteur hors‑bord d’une puissance de 15 kW à 40 kW ;
—    les systèmes de direction à mini‑tuyères, à l’exclusion des véhicules nautiques à moteur (motos aquatiques).
NOTE         Les systèmes de direction à utilisations standard et légère sont interchangeables mécaniquement. Un système de direction à utilisation standard peut être utilisé sur un bateau conçu pour un système à utilisation légère. Cependant, un système de direction à utilisation légère ne peut pas être utilisé sur un bateau qui nécessite un système de direction à utilisation standard. Les systèmes de direction à mini‑tuyères sont mécaniquement différenciés des systèmes mentionnés ci‑dessus et ne peuvent être utilisés que sur des bateaux à mini‑tuyère tels que définis dans ce document.
Ce document ne traite pas des systèmes des dispositifs de barre/direction de secours du bateau.

Mala plovila - Daljinski mehanski sistemi krmiljenja (ISO 8848:2022)

Ta dokument določa zahteve za projektiranje, konstrukcijo, vgradnjo in preskušanje daljinskih mehanskih
sistemov krmiljenja s kabli ter izhodne vmesne točke med batom in krmili, reaktivnimi pogoni, izvenkrmnimi in krmnimi motorji za mala plovila.
Uporablja se za tri različne razrede sistemov krmiljenja, namenjene uporabi na plovilih različnih vrst:
– sistemi krmiljenja standardne izvedbe za mala plovila z enim ali dvema vgrajenima izvenkrmnima motorjema s skupno močjo nad 15 kW ter s krmili, krmnimi pogoni in pogoni z vodnim curkom;
– sistemi krmiljenja lahke izvedbe za mala plovila z enim izvenkrmnim motorjem z močjo od 15 kW do 40 kW;
– sistemi krmiljenja za mini reaktivne vodne pogone, razen za osebna plovila.
OPOMBA: Sistemi krmiljenja standardne in lahke izvedbe so med seboj mehansko zamenljivi. Sistem krmiljenja standardne izvedbe je tako mogoče uporabljati na plovilu, ki je zasnovano za sistem lahke izvedbe. Vendar pa sistema krmiljenja lahke izvedbe ni mogoče uporabiti na plovilu, ki zahteva sistem krmiljenja standardne izvedbe. Sistemi krmiljenja za mini reaktivne vodne pogone se mehansko razlikujejo od zgoraj omenjenih sistemov in jih je mogoče uporabljati na mini plovilih z reaktivnim vodnim pogonom, kakor so opredeljena v tem dokumentu.
Ta dokument ne obravnava naprav za krmiljenje plovila v sili.

General Information

• Status: Published
• Publication Date: 12-Jul-2022
• Withdrawal Date: 30-Jan-2023
• ICS: 47.080 - Small craft
• Technical Committee: CEN/TC 464 - Small Craft
• Drafting Committee: CEN/TC 464 - Small Craft
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 13-Jul-2022
• Completion Date: 13-Jul-2022
• Directive: 2013/53/EU - Directive 2013/53/EU of the European Parliament and of the Council of 20 November 2013 on recreational craft and personal watercraft and repealing Directive 94/25/EC
• Mandate: M/542 - [C(2015)8736] Standardisation Request to the European Committee for Standardisation and the European Committee for Electro-technical Standardisation as regards recreational craft and personal watercraft in support of Directive 2013/53/EU of the European Parliament and of the Council of 20 November 2013 on recreational craft and personal watercraft and repealing Directive 94/25/EC.
• Ref Project: SIST EN ISO 8848:2022 - Small craft - Remote mechanical steering systems (ISO 8848:2022)

Relations

• Replaces: EN ISO 8848:2021 - Small craft - Remote mechanical steering systems (ISO 8848:2020)
• Effective Date: 20-Jul-2022

Overview

EN ISO 8848:2022 - Small craft: Remote mechanical steering systems (ISO 8848:2022) specifies design, construction, installation and test requirements for remote mechanical cable steering systems and the output ram interface to rudders, jet drives, outboard and sterndrive engines on small craft. The standard is published by CEN/ISO and applies to three classes of steering systems: standard duty, light duty, and mini-jet systems. It does not cover emergency steering means, steering wheels as supplied components, hydraulic or electrical/electronic steering control systems.

Key topics and technical requirements

EN ISO 8848:2022 covers the full lifecycle of remote mechanical steering systems with emphasis on safety, interoperability and conformity:

• Scope and definitions: Terms such as craft-mounted steering system, output ram, interface point, drag link and mini-jet craft.
• Constructional requirements: Materials, mechanical design and interfaces for cables, output rams and guides.
• Engine and drive interfaces: Design considerations for outboard, sterndrive and inboard jet-drive installations.
• Steering system components:
  • Steering cables and output assemblies
  • Steering mechanisms and control elements (wheels, handlebars, joysticks)
  • Interface points between steering system and craft propulsion or rudder
• Installation: Procedures for mounting craft‑mounted steering systems and securing guide tubes and interface points.
• Testing:
  • As-installed tests verifying system performance in situ
  • Component tests for cables, mechanisms and output assemblies
  • Requirements for markings, owner’s manual and installation manual
• System classes & interchangeability:
  • Standard duty: for craft with single/twin outboards >15 kW and for rudders, sterndrives, water-jets
  • Light duty: single outboard 15–40 kW
  • Mini-jet: for inboard jet-driven craft under 1 000 kg (not PWC)
  • Note: standard and light duty systems are mechanically interchangeable; mini-jet systems are distinct.

Applications and who uses this standard

EN ISO 8848:2022 is intended for professionals involved with small craft steering systems:

• Boat designers and naval architects specifying mechanical steering for small craft
• Manufacturers of steering cables, mechanisms, output rams and steering assemblies
• Marine engineers and fitters performing installation and commissioning
• Test labs, conformity assessors and notified bodies evaluating compliance with EU requirements
• Regulatory and certification bodies relying on standards to demonstrate conformity (see Annex ZA relationship to Directive 2013/53/EU)

Related standards (if applicable)

• ISO 12217 series (stability and buoyancy assessment) - referenced for craft categorization and safety context.
• Standards covering hydraulic, electrical/electronic steering or propulsion controls are outside EN ISO 8848’s scope and should be consulted where applicable.

Keywords: EN ISO 8848:2022, remote mechanical steering systems, small craft, steering cable, standard duty, light duty, mini-jet, output ram, installation, testing.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN ISO 8848:2021
Mala plovila - Daljinski mehanski sistemi krmiljenja (ISO 8848:2022)
Small craft - Remote mechanical steering systems (ISO 8848:2022)
Kleine Wasserfahrzeuge - Steueranlagen (ISO 8848:2022)
Petits navires - Appareils à gouverner commandés à distance (ISO 8848:2022)
Ta slovenski standard je istoveten z: EN ISO 8848:2022
ICS:
47.020.70 Navigacijska in krmilna Navigation and control
oprema equipment
47.080 Čolni Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8848
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2022
EUROPÄISCHE NORM
ICS 47.080 Supersedes EN ISO 8848:2021
English Version
Small craft - Remote mechanical steering systems (ISO
8848:2022)
Petits navires - Appareils à gouverner commandés à Kleine Wasserfahrzeuge - Steueranlagen (ISO
distance (ISO 8848:2022) 8848:2022)
This European Standard was approved by CEN on 20 April 2022.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N

EUROPÄISCHES KOMITEE FÜR NORMUN G

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8848:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2013/53/EU aimed to be covered . 4

European foreword
This document (EN ISO 8848:2022) has been prepared by Technical Committee ISO/TC 188 "Small
craft" in collaboration with Technical Committee CEN/TC 464 “Small Craft” the secretariat of which is
held by SIS.
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 January 2023, and conflicting national standards shall
be withdrawn at the latest by January 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 8848:2021.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral
part of this document.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 8848:2022 has been approved by CEN as EN ISO 8848:2022 without any modification.

Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2013/53/EU aimed to be covered
This European Standard has been prepared under a Commission’s standardization request M/542/C
(2015) 8736 final to provide one voluntary means of conforming to essential requirements of Directive
2013/53/EU.
Once this standard is cited in the Official Journal of the European Union under that Directive,
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 corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Directive 2013/53/EU
Essential Requirements of Clause(s)/sub-clause(s) Remarks/Notes
Directive 2013/53/EU of this EN
Annex I.A.5.4.1 – Steering system, Clauses 1-8 The scope of this standard
General addresses remote mechanical
cable steering systems only. It
does not address the
requirements for steering
wheels, hydraulic steering
systems and electrical/electronic
steering control systems which
are covered elsewhere.
This Standard does not address
propulsion control systems or
emergency steering
arrangements.
Annex II, Components of Clauses 1 - 8 In respect of push-pull cable
watercraft (3) -Steering wheels, steering systems and their major
steering mechanisms and cable component items only.
assemblies.
Steering Wheels supplied as
components are not covered by
this Standard.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
INTERNATIONAL ISO
STANDARD 8848
Third edition
2022-04
Small craft — Remote mechanical
steering systems
Petits navires — Appareils à gouverner commandés à distance
Reference number
ISO 8848:2022(E)
ISO 8848:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 8848:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Constructional requirements .3
5 Outboard engine and inboard-sterndrive design requirements .6
6 Steering system requirements . 8
6.1 Craft-mounted steering systems . 8
6.2 Steering systems . 8
6.3 Steering cables . 8
6.4 Steering mechanisms . 9
7 Installation .11
8 Test requirements .14
8.1 General . 14
8.2 As-installed tests . 14
8.3 Components test.15
8.3.1 Steering cable and output assembly tests . 15
8.3.2 Steering mechanism assembly tests . 16
9 Markings, owner’s manual and installation manual.19
9.1 Markings . 19
9.2 Owner’s manual . 19
9.3 Installation manual . 19
Bibliography .20
iii
ISO 8848:2022(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 188, Small craft, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 464, Small craft, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 8848:2020), of which it constitutes a
minor revision. Changes have been made to align the document with other ISO/TC 188 standards and
to avoid circularity of normative references.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
INTERNATIONAL STANDARD ISO 8848:2022(E)
Small craft — Remote mechanical steering systems
1 Scope
This document specifies design, construction, installation and test requirements for remote mechanical
cable steering systems and the output ram interface point to rudders, jet drives, outboard and
sterndrive engines for small craft.
It is applicable to three distinct classes of steering systems for use on various types of craft:
— standard duty steering systems, for small craft with single and twin installations of outboard
engines with a total over 15 kW power, and with rudders, sterndrives and water-jet drives;
— light duty steering systems, for small craft with a single outboard engine of 15 kW to 40 kW power;
— mini-jet steering systems, excluding personal watercraft.
NOTE Standard and light duty steering systems are mechanically interchangeable. A standard duty steering
system can be used on a craft designed for a light duty system. However, a light duty steering system cannot
be used on a craft that requires a standard duty steering system. Mini-jet steering systems are mechanically
differentiated from the previously mentioned systems and can only be used on mini-jet craft as defined in this
document.
This document does not address emergency means for steering the craft.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 12217-1:2015, Small craft — Stability and buoyancy assessment and categorization — Part 1: Non-
sailing boats of hull length greater than or equal to 6 m
ISO 12217-2:2015, Small craft — Stability and buoyancy assessment and categorization — Part 2: Sailing
boats of hull length greater than or equal to 6 m
ISO 12217-3:2015, Small craft — Stability and buoyancy assessment and categorization — Part 3: Boats of
hull length less than 6 m
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
craft-mounted steering system
assembly including all components necessary to transmit remote manual effort to the end of the output
ram (3.20) and a means to secure an output ram guide tube to the craft (3.16)
ISO 8848:2022(E)
3.2
interface point
point of mechanical interface in the steering system (3.11) where a connection is made between the
output ram (3.20) and the craft components that are not supplied as part of the same assembly
3.3
control element
device connected to the steering mechanism (3.6) that allows the operator to apply manual steering
effort to the steering system (3.11)
EXAMPLE Steering wheel (3.13), handlebar (3.5), joystick (3.7).
3.4
drag link
device in an engine-mounted steering system (3.10) by which the linear force of the output ram (3.20) is
transmitted to the engine steering arm
3.5
handlebar
mechanical means for applying a manual steering effort to the steering mechanism (3.6) in a horizontal
configuration, with hand grips at each end and the helm connected at the middle
3.6
steering mechanism
device, to which a control element (3.3) is attached for manual application of a controlling force, and by
which the controlling force is fed into a steering system (3.11)
3.7
joystick
operator input device for the simultaneous control of thrust, steering and propulsion
3.8
mini-jet craft
craft (3.16) weighing less than 1 000 kg, with an inboard engine powering a water-jet pump as its
primary method of propulsion, designed to be operated with one or more persons within the confines
of a hull
3.9
minimum retained system performance
system performance after test(s), such that at least 90 % of the steering arc normally available each
side of the mid-position can be obtained by exertion of no more than 27 N∙m of torque at the steering
mechanism (3.6), through the control element (3.3)
Note 1 to entry: This criterion does not define the steering system (3.11) performance while a craft (3.16) is
underway, but is rather intended to provide quantitative limits for design and test purposes.
3.10
engine-mounted steering system
assembly including all components necessary to transmit a remote manual effort to the end of the
output ram (3.20) which is affixed to an engine mounted steering tube and a drag link (3.4) supplied by
the engine manufacturer
3.11
steering system
assembly including all components necessary to transmit a remote manual effort to the rudder,
outboard engine, sterndrive or water-jet drive
3.12
two-cable steering system
two independent cables attached at the interface point(s) (3.2) of the output ram(s) (3.20) and at the helm
and driven by a common steering shaft, generally used to minimize steering backlash or lost motion
ISO 8848:2022(E)
3.13
steering wheel
mechanical means for applying a manual steering effort to the helm, normally a circular configuration
with a continuous loop at the distal end of support spokes with the helm connected at the rotational
axis
3.14
steering wheel diameter
actual diameter
D
a
diameter of the circle formed by the outermost sections of the steering wheel (3.13)
Note 1 to entry: See Figure 6.
3.15
steering wheel dish
distance between the two parallel planes formed by the aft rim surface and the forward hub surface of
a steering wheel (3.13)
Note 1 to entry: See Figure 6.
3.16
craft
small craft
recreational boat, and other watercraft using similar equipment, of up to 24 m length of hull (L )
H
Note 1 to entry: The measurement methodology for the length of hull is defined in ISO 8666.
[SOURCE: ISO 8666:2020, 3.15, modified — Note 1 to entry has been added.]
3.17
standard duty steering system
remote mechanical steering system (3.11) designed to the requirements of this document for use on
craft (3.16) with outboard engines (single and dual) with a total of 15 kW and greater power, inboard
engines, sterndrives and water-jet drives
3.18
light duty steering system
remote mechanical steering system (3.11) designed to the requirements of this document for use on
craft (3.16) with single outboard engines between 15 kW and 40 kW power that is permanently marked
with a maximum power rating of 40 kW
3.19
mini-jet steering system
remote mechanical steering system (3.11) designed to the requirements of this document for use on
mini-jet craft (3.8)
3.20
output ram
portion of the remote mechanical steering cable that interfaces with the outboard engine steering tube
and drag link (3.4), steering actuator or craft mounted steering tube/rudder
4 Constructional requirements
4.1 When steering systems are factory installed in the craft, the complete system shall be supplied.
In outboard engine craft, the system shall be supplied complete to the interface point at the output ram
end as shown in Figure 1.
ISO 8848:2022(E)
Dimensions in millimetres
Key
a
1 coupler nut Mid-travel position.
b
2 output ram tube Flat.
3 interface point
4 end fitting
NOTE Minimum travel: 100 mm each side of mid-travel position.
Maximum travel: 115 mm each side of mid-travel position.
Coupler nut 7/8-14 UNF-2B thread (optional for boat mounted systems).
Figure 1 — Output ram
4.2 Installation of the steering system shall be in accordance with the instructions provided by the
steering system manufacturer.
4.3 Craft suitable for twin outboard engines shall be so designated. It shall also be specified whether
the craft is suitable for engine-mounted steering systems, craft-mounted steering systems or both. If
the craft is suitable for craft-mounted steering systems, it shall also be specified whether engine well
mounting, transom mounting or both (see Figure 2) may be used.
ISO 8848:2022(E)
Dimensions in millimetres
a)  Engine well mounting b)  Transom mounting
Key
1 380 mid-travel position 7 centreline of swivel to be 0 +12 above transom
2 engine mounting face of clamp bracket 8 face of clamp bracket
3 engine centreline 9 engine centreline
4 articulation 15° min. 10 articulation 15° min.
5 7/8-14 NF.2B thread – 16 min. length on tube 11 mid-travel position
6 swivel axis 102 0 −13 square off face of transom 12 interface point
NOTE Minimum travel: 100 mm each side of mid-travel position.
Maximum travel: 115 mm each side of mid-travel position.
Figure 2 — Craft-mounted steering system
4.4 Components of the steering system shall be resistant to corrosion, either by virtue of material or
coating thereof, and sha
...