Shipbuilding - Active control units of ships - Vocabulary

The main aim is to give clear enough definitions for each term to be understood identically by all specialists concerned. Applies to active control units used as auxiliary propellers to improve manoeuvrability of a vessel, to provide directional stability or positioning of a vessel.

Construction navale — Moyens de contrôle actif des navires — Vocabulaire

General Information

Status
Published
Publication Date
18-Dec-1985
Current Stage
9093 - International Standard confirmed
Start Date
26-Sep-2024
Completion Date
13-Dec-2025

Overview

ISO 7255:1985 is an internationally recognized standard developed by the International Organization for Standardization (ISO) that provides clear and precise vocabulary related to active control units of ships. These units are auxiliary propellers designed to enhance a vessel’s maneuverability, directional stability, and positioning. This standard applies primarily to active control systems that produce thrust at various angles to improve vessel handling at low speeds or while at a standstill.

The primary goal of ISO 7255:1985 is to unify terminology across the shipbuilding and marine engineering industry so that all specialists interpret these terms identically-promoting clarity and reducing misunderstandings in technical communication and documentation.

Key Topics

  • Active Control Units: Defined as devices with an autonomous prime mover creating thrust at an angle to the vessel’s centerline for effective maneuvering.
  • Ship Lateral Thrusters: Active control units installed in channels or nozzles in the hull, producing thrust perpendicular to the centerline for sideways movement.
  • Retractable Thrusters: Thrusters that can be lifted vertically inside the hull when not in use to reduce drag or protect the propeller.
  • Propulsion-Steering Units: Units capable of both propelling and steering the vessel by changing thrust direction, including rudder-propellers.
  • Rudder-Propellers: Steering and propulsion devices with the propeller mounted on a rotating column, allowing 360-degree directional thrust.
  • Active Rudders: Installed in rudder blades, these units combine steering and thrust generation with adjustable thrust direction within rudder angle limits.
  • Cycloidal Propellers: Advanced devices with vertical vanes producing thrust at variable directions by altering the vane angle.
  • Rotatable Water Jets: Hydro-jet propulsion systems located inside the hull with adjustable direction of thrust from 0° to 360° by rotating the unit.

ISO 7255:1985 also specifies that each technical term has a single standardized form without synonyms to avoid ambiguity. Parentheses may be used in terms to allow shortened versions when context allows.

Applications

  • Shipbuilders and Designers: Use ISO 7255:1985 terminology to uniformly specify active control unit features in ship plans, manuals, and blueprints.
  • Marine Engineers: Rely on the standard for clear communication about components affecting vessel maneuvering and stability.
  • Regulatory Bodies: Reference these terms for consistency in certification, inspection, and regulatory documentation.
  • Manufacturers of Control Units: Ensure product datasheets, instruction manuals, and marketing materials use internationally accepted definitions.
  • Training and Education: Serve as a foundational vocabulary guide in maritime engineering curricula and professional training resources.

By implementing the standardized vocabulary from ISO 7255:1985, maritime professionals can reduce errors, enhance collaboration, and improve safety related to ship maneuverability systems.

Related Standards

  • ISO/TC 8 Shipbuilding and Marine Structures: The technical committee responsible for the development and maintenance of standards related to shipbuilding, which ensures ongoing revisions and updates of ISO 7255 and related documents.
  • Standards on Hull Structures and Stability: Complement ISO 7255 by addressing vessel structural integrity and safety to support active control units.
  • ISO Vocabulary Standards: Other ISO vocabulary standards for technical clarity across marine engineering and propulsion systems.
  • International Maritime Organization (IMO) Guidelines: Often reference ISO standards for terminology consistency in international maritime regulations.

Keywords: ISO 7255:1985, active control units, shipbuilding vocabulary, ship maneuverability, auxiliary propellers, lateral thrusters, rudder-propellers, cycloidal propeller, water jet propulsion, maritime engineering standards, vessel positioning, directional stability, marine propulsion terminology, ISO shipbuilding standards.

Frequently Asked Questions

ISO 7255:1985 is a standard published by the International Organization for Standardization (ISO). Its full title is "Shipbuilding - Active control units of ships - Vocabulary". This standard covers: The main aim is to give clear enough definitions for each term to be understood identically by all specialists concerned. Applies to active control units used as auxiliary propellers to improve manoeuvrability of a vessel, to provide directional stability or positioning of a vessel.

The main aim is to give clear enough definitions for each term to be understood identically by all specialists concerned. Applies to active control units used as auxiliary propellers to improve manoeuvrability of a vessel, to provide directional stability or positioning of a vessel.

ISO 7255:1985 is classified under the following ICS (International Classification for Standards) categories: 01.040.47 - Shipbuilding and marine structures (Vocabularies); 47.020.70 - Navigation and control equipment. The ICS classification helps identify the subject area and facilitates finding related standards.

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Standards Content (Sample)


INTERNATIONAL STANDARD
NORME INTERNATIONALE
ME>KAYHAPOflHblfi CTAHBAPT
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME~YHAPOAHAfl OPrAHI43AWlR fl0 CTAH~APTl43A~Wl@ORGANISATION INTERNATIONALE DE NORMALISATION
Shipbuilding - Active control units of ships -
Vocabulary
First edition - 1985-12-15
- Moyens de controle actif des
Construction navale
navires - Vocabulaire
Premiere Edition - 1985-12-15
- CpeACTBa aKTPlBHOr0 y~~aBJleHWl C)fAaMld - CflOBapb
CyAocTpoetwe
nepeoe wAatwe - 1985-12-15
UDC/CDU/YAK 629.12.037.21 : 001.4 Ref. NoJRbf. no : ISO 7255-1985 (E/F/R)
CCblJ’IKa No : MC0 72554985 (ARWP)
Descriptors : shipbuilding, ships, control equipment, vocabulary. / Descripteurs : construction navale, navire, mat&-ie1 de commande,
vocabulaire./&xKpmTopbl : cyAocTpoewde, cy~~o, cpeAcT6a ynpasnekim, cnosapb.
Price based on 6 pages/Prix base sur 6 pages&Ha paccwTaHa Ha 6 CTP.

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 normal-
ly carried out through ISO technical committees. Esch member body interested in a subject for
which a technical committee has been established has the right to be represented on that com-
mittee. International organizations, governmental and non-governmental, in liaison with ISO,
also take part in the work.
Draft International Standards adopted by the technical committees are circulated to the member
bodies for approval before their acceptance as International Standards by the ISO Council. They
are approved in accordance with ISO procedures requiring at least 75 % approval by the member
bodies voting .
Sh@ b uilding
International Standard ISO 7255 was prepared by Technical Committee ISO/TC 8,
and marine structures.
Users should note that all International Standards undergo revision from time to time and that
any reference made herein to any other International Standard implies its latest edition, unless
otherwise stated.
Avant-propos
L’ISO (Organisation internationale de normalisation) est une federation mondiale d’organismes
nationaux de normalisation (comites membres de I’ISO). L’elaboration des Normes internationa-
les est confiee aux comites techniques de I’ISO. Chaque comite membre interesse par une etude
a Ie droit de faire Partie du comite technique cree a cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec I’ISO participent egalement aux tra-
vaux.
Les projets de Normes internationales adoptes par les comites techniques sont soumis aux comi-
tes membres pour approbation, avant leur acceptation comme Normes internationales par Ie
Conseil de I’ISO. Les Normes internationales sont approuvees conformement aux procedures de
I’ISO qui requierent I’approbation de 75 % au moins des comites membres votants.
La Norme internationale ISO 7255 a etc ela boree par Ie comite technique ISO/TC 8, Cons truc tion
na vale et s truc tures maritimes.
L’attention des utilisateurs est attiree sur Ie fait que toutes les Normes internationales sont de
temps en temps soumises a revision et que toute reference faite a une autre Norme internationale
dans Ie present document implique qu’il s’agit, sauf indication contraire, de Ia derniere Edition.

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This page intentionally left blank

INTERNATIONAL STANDARD
ISO 72551985 (E/F/R)
NORME INTERNATIONALE
M CO 72554 985 (AIWP)
MEXAYHAPOflHblül CTAHAAPT
Shipbuilding - Construction
CyAocTpoeHide -
Active control navale - Moyens CpeflCTBa aKTldBHOr0
units of ships - de controle actif
ynpaBJleHb4%l cy/qaMH -
Vocabulary des navires - CJloBapb
Vocabulaire
1 Scope and field of Objet et domaine d’application 06’beKT bi 06nacTb flpWIeHeHWI
application
La presente Norme internationale definit les HacTofllqM MeqqyHapOAHbi r;i CTaHfiapT
termes concernant les moyens de controle Oflpe~eJIfleT TePMMHbl, OTHOCRtQMeCR K
This International Standard defines
actif des navires.
CpeflCTBaM aKTMBHOro ynpaBneHW’I Cy-
terms applying to active control units of
Aah4M.
ships.
Le but essentiel de Ia presente Norme inter-
nationale est de donner des definitions suf-
OCHOBHafl uen b HacToqero MemyHa-
The main aim of this International Stan-
fisamment nettes pour que chaque terme POAHOrO CTaHgapTa - AaTb AOCTaTOirHO
dard is to give clear enough definitions
soit pareillement interprete par tous les
FlCHble Onpe~efleHWl, ciT06bl Kamblti Tep-
for each term to be understood iden-
specialistes interesses.
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tically by all specialists concerned.
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La presente Norme internationale s’appli-
This International Standard applies to
que aux moyens de controle actif utilises
HacTofiiqW Me~yHapOfiHbl ti CTaHJJapT
active control units used as auxiliary
comme propulseurs auxiliaires pour amelio- paCnpOCTpaHfIeTCfl Ha CpeACTBa aKTMBHO-
propellers to improve manoeuvrability
rer Ia manceuvrabilite et Ia stabilite de route
r0 ynpaBfleHklf& npl4MeHfleMble B KaCleCTBe
of a vessel, to provide directional stabil-
ou de Position du navire. Cependant, les
BCllOMOraTeJl bHblX RflFi yflyWeHMf4 MaHeB-
ity or positioning of a vessel. The units
dispositifs couverts par Ia presente Norme PeHHOCTM CyAHa, yRep>KaHWl CyAHa Ha
covered may, however, also be used as
internationale peuvent egalement etre utili-
KypCe MIlM Ha MeCTe. flpt4BeAeHHble Cpea-
main propellers.
ses comme propulseurs principaux. CTBa MOryT, OAHaKO, MCllOflb30BaTbCfl M B
The terms defined in this International
YaqecTBe rJlaBHblX ~Bw+wlTenelk
Les termes definis dans Ia presente Norme
Standard shall be used in documents of
internationale doivent etre employes dans TepMMHbl, 0npeAeneHHbie B HacToqeM
all kinds.
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2.1 A Single standardized term is Chaque notion doit avoir un seul terme nor-
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established for each concept. The use malise. L’emploi des synonymes d’un
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of Synonyms for the terms shall not be
terme doit etre exclu. 30BaHMe CMHOHMMOB CTaH/JapTl43VlpOBaH-
permitted.
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omitted, thereby allowing a shortened
mots mis entre parentheses peuvent etre HblX TepMVlHOB CnOBa, HaXOAfIwVleCfl B
form of these terms in cases where Omis, permettant ainsi d’utiliser une forme
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there is no risk of misinterpretation. breve de ces termes dans les cas depourvus 06pa30M MOXHO MCllOn b30BaTb KpaTKMe
de toute ambiguite.
@OPMbl 3TMX TepMMHOB B HeAByCMblCneH-
NOTE - In addition to the terms given in
HblX cnyrafix.
the three official ISO languages (English,
NOTE - En Supplement aux termes donnes
French and Russian), this International Stan- dans les trois langues officielles de I’ISO
I-lPMMEc-IAHME - B flOflOJlHeHkle K TePMMHaM Ha
dard gives the equivalent terms in Dutch,
(anglais, francais et russe), Ia presente Norme TpeX OC$Wl~MaJlbHblX R3blKaX MC0 (aHWlI/1CKOM,
German, Italian, Polish, Norwegian, Spanish internationale donne en annexe les termes equi-
C@paHqY3CKOM M PYCCKOM) HaCTORU(M6l Memfiytia-
and Chinese. These terms have been in-
valents en neerlandais, allemand, italien, polo- POAHblti CTaH#apT AaeT 3KBMBafleHTHble TePMM-
cluded at the request of Technical Commit-
nais, norvegien, espagnol et chinois. Ces termes Hbl Ha TOflJlaHJJCKOM, HeMeqKOM, MTaflbFiHCKOM,
tee ISO/TC 8 and are published under the
ont etc inclus a Ia demande du comite technique llOJlbCKOM, HOPBWKCKOM, MCllaHCKOM M KmTati-
ISO 7255-1985 (E/F/R)
MC0 72554985 (AWP)
responsibility of the member bodies for the ISO/TC 8 et sont publies sous Ia responsabilite CKOM R3blKaX. 3TM TePMMHbl BBefleHbl n0 npOCb-
6e TextwiecKoro KowneTa MCO/TK 8 M ny6nw
Netherlands (NNI), the Federal Republic of des comites membres des Pays-Bas (NNI), de Ia
Germany (DIN), Italy (UNI), Poland Republique federale d’Allemagne (DIN), de I’lta- KylOTCR llOp,OTBeTCTBeHHOCTb KOMMTeTOB-‘-iIleHOB
HtiAepnaHAoB (HHM), Q>e~epaTmHoti PecnyGnw
(PKNiM), Norway (NSF), Spain (IRANOR) lie (UNI), de Ia Pologne (PKNiM), de Ia Norvege
(NSF), de I’Espagne (IRANOR) et de Ia Chine KM repMatiuu (AVrH), MTanm (YHM), llonbw
and China (CSBS). However, only the terms
in the official languages tan be considered (CSBS). Toutefois, seuls les termes donnes (IlKHuM), Hopeerm (HC@), Mcnat-ww (VIPAHOP)
M Kwrafl (UCEX). OjJHaKO, nMUb TePMMHbl Irl Onpe-
as ISO terms. dans les trois langues officielles peuvent etre
consideres comme termes ISO. ~eneH~RHaO~~~ManbHblXF13blKaXMOTYTpaCCMa-
TPMBaTbCR KaK TePMMHbl M OQN?flWleHWl MCO.
3 Terms and definitions Termes et definitions TePMHHbl H Hx Onpe~enetinn
3.0 active control unit of a ship : A moyen de controle actif du navire : Dis- CpeACTBO aKTHBHOr0 yflpaBJleHbM Cy~HOM :
unit with an individual Prime mover YCT~OWCTBO C aBTOHOMHblM l7pMBOfiOM,
positif a entrainement autonome produi-
creating a thrust at some angle to the sant, a petite vitesse ou a I’arret du navire, co3Aatoqee ynop r4nr4 rflry, HanpasneriHyro
centreline plane of the vessel, mainly at
une poussee dans une direction differente no4 yrnohn K 4r4aMerpanbHoM nnocKocTr4
low Speeds or at standstill of the vessel. de I’axe de celui-ci. CyaHa, rnaBHblM
...

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