dnvgl-ru-hslc-pt6ch3 navigation and manoeuvring

The content of this service document is the subject of intellectual property rights reserved by DNV GL AS ("DNV GL"). The useraccepts that it is prohibited by anyone else but DNV GL and/or its licensees to offer and/or perform classification, certificationand/or verification services, including the issuance of certificates and/or declarations of conformity, wholly or partly, on thebasis of and/or pursuant to this document whether free of charge or chargeable, without DNV GL's prior written consent.DNV GL is not responsible for the consequences arising from any use of this document by others.

The electronic pdf version of this document, available free of chargefrom http://www.dnvgl.com, is the officially binding version.

DNV GL AS

RULES FOR CLASSIFICATION

High speed and light craftEdition December 2015

Part 6 Additional class notations

Chapter 3 Navigation and manoeuvring

FOREWORD

DNV GL rules for classification contain procedural and technical requirements related to obtainingand retaining a class certificate. The rules represent all requirements adopted by the Society asbasis for classification.

© DNV GL AS December 2015

Any comments may be sent by e-mail to [email protected]

If any person suffers loss or damage which is proved to have been caused by any negligent act or omission of DNV GL, then DNV GL shallpay compensation to such person for his proved direct loss or damage. However, the compensation shall not exceed an amount equal to tentimes the fee charged for the service in question, provided that the maximum compensation shall never exceed USD 2 million.

In this provision "DNV GL" shall mean DNV GL AS, its direct and indirect owners as well as all its affiliates, subsidiaries, directors, officers,employees, agents and any other acting on behalf of DNV GL.

Part

6 C

hapt

er 3

Cha

nges

- c

urre

nt

Rules for classification: High speed and light craft — DNVGL-RU-HSLC-Pt6Ch3. Edition December 2015 Navigation and manoeuvring

DNV GL AS

CURRENT – CHANGES

This is a new document.

The rules enter into force 1 July 2016.

Part

6 C

hapt

er 3

Con

tent

s


DNV GL AS

CONTENTS

Current – changes...................................................................................................... 3

Section 1 General requirements................................................................................. 71 Classification...........................................................................................7

1.1 Introduction.........................................................................................71.2 Application.......................................................................................... 71.3 Class notation......................................................................................7

2 Definitions.............................................................................................. 82.1 Terms................................................................................................. 8

3 Documentation........................................................................................93.1 General...............................................................................................9

4 Certification.......................................................................................... 104.1 General............................................................................................. 10

5 Instruction manuals..............................................................................105.1 General............................................................................................. 10

6 Tests and trials.....................................................................................116.1 General............................................................................................. 116.2 Handling, controllability and performance.............................................. 116.3 Weight and centre of gravity............................................................... 116.4 Effect of failures.................................................................................116.5 Controllability and manoeuvrability....................................................... 116.6 Change of operating surface and mode................................................. 126.7 Surface irregularities...........................................................................126.8 Acceleration and deceleration...............................................................126.9 Speeds..............................................................................................126.10 Minimum depth of water................................................................... 136.11 Night operation................................................................................ 13

Section 2 Navigational equipment............................................................................141 Equipment requirements.......................................................................14

1.1 General............................................................................................. 141.2 Compasses........................................................................................ 141.3 Speed and distance measurement........................................................ 151.4 Echo-sounding device......................................................................... 151.5 Radar installation............................................................................... 151.6 Electronic positioning systems..............................................................15

Part

6 C

hapt

er 3

Con

tent

s


DNV GL AS

1.7 Rate-of-turn indicator and rudder angle indicator....................................151.8 Nautical charts and nautical publications............................................... 161.9 Other navigational aids....................................................................... 161.10 Night vision equipment......................................................................161.11 Steering arrangement and propulsion indicator(s)................................. 161.12 Heading control system (automatic pilot).............................................171.13 Radar reflector................................................................................. 171.14 Sound reception system.................................................................... 171.15 Automatic identification system (AIS)..................................................181.16 Voyage data recorder........................................................................18

2 Power supply........................................................................................182.1 Electrical power supply....................................................................... 18

3 Alarm system........................................................................................193.1 Bridge alarm management.................................................................. 19

4 Approval of equipment......................................................................... 214.1 Approval of system equipment and performance standards...................... 21

Section 3 Operating compartment layout.................................................................231 Operating compartment design and layout...........................................23

1.1 General............................................................................................. 231.2 Field of vision from the operating compartment......................................231.3 Console configuration..........................................................................241.4 Windows........................................................................................... 261.5 Chairs............................................................................................... 261.6 Operating compartment...................................................................... 271.7 Instrument installation........................................................................ 311.8 Communication facilities......................................................................32

Section 4 Bridge equipment tests............................................................................ 341 General................................................................................................. 34

1.1 Application.........................................................................................342 On-board testing of bridge equipment..................................................34

2.1 General............................................................................................. 342.2 Test program..................................................................................... 342.3 General requirements for the testing of all types of bridge equipment........ 342.4 Gyro compass....................................................................................342.5 Automatic steering system.................................................................. 352.6 Rudder or steering thrust direction indicator(s)...................................... 352.7 Rate-of-turn indicator......................................................................... 35

Part

6 C

hapt

er 3

Con

tent

s


DNV GL AS

2.8 Echo sounder.....................................................................................352.9 Speed log..........................................................................................352.10 Electronic position-fixing systems....................................................... 352.11 Radar system...................................................................................352.12 Alarm system...................................................................................362.13 Computer system(s)......................................................................... 362.14 Electronic chart display and information system, (ECDIS) including back

up system........................................................................................... 362.15 Track control system (if applicable).....................................................372.16 Conning display................................................................................372.17 Voyage data recorder (VDR).............................................................. 372.18 Automatic identification system (AIS)..................................................372.19 Internal communication system..........................................................372.20 Nautical communication system..........................................................372.21 Sound reception system.................................................................... 38

Section 5 Compartment environment....................................................................... 391 Bridge working environment................................................................ 39

1.1 General............................................................................................. 391.2 Temperature and ventilation................................................................ 391.3 Colours............................................................................................. 391.4 Vibration........................................................................................... 391.5 Noise................................................................................................ 391.6 Lighting.............................................................................................401.7 Surfaces............................................................................................401.8 Safety measures................................................................................ 41

Section 6 Operational procedures............................................................................ 421 Classification.........................................................................................42

1.1 Application.........................................................................................421.2 Introduction.......................................................................................42

Part

6 C

hapt

er 3

Sec

tion

1


DNV GL AS

SECTION 1 GENERAL REQUIREMENTS

1 Classification

1.1 Introduction

1.1.1 Safe navigation is dependent upon a bridge system, which ensures that the craft at all times proceedson a correct course and speed in relation to destination, waters, traffic and weather conditions. Consequently,the main functions to be performed by the bridge system shall decide, execute and maintain a correct courseand speed.

1.1.2 The objectives of the rules in this chapter are to enhance safety and efficiency in bridge operation bygoverning the factors influencing the navigators capability to maintain a safe course and speed.

1.1.3 The rules stipulate a nautical safety standard for High Speed Craft equivalent to or exceeding theSOLAS convention, HSC Code 2000 as amended, (IMO Res. MSC.97(73)) and establish conditions thatsimplify the fulfilment of the STCW convention and COLREG convention.

1.1.4 The rules are based on functional requirements and give guidelines as to how the rules can be met.Text quoted from the International Code of Safety for High-Speed Craft (2000 HSC Code) is printed in italics.

1.2 Application

1.2.1 The rules in this chapter apply to all types of High Speed Craft that are to be designed and equippedfor safe bridge operation in all types of waters.

1.2.2 The requirements apply to:

— bridge visibility— console configuration— bridge working environment— location of instruments— range of instrumentation— instrument performance and reliability— equipment installation— information on manoeuvring performance— operational procedures.

1.3 Class notation

1.3.1 Craft built, equipped, surveyed and tested in compliance with the requirements set forth in this chaptermay be given the additional class notation NAUT-HSC.

Part

6 C

hapt

er 3

Sec

tion

1


DNV GL AS

Table 1 Additional Class Notations related to navigation and manoeuvring

Class Notation Qualifier Purpose Application

HSCBasic bridge design, bridgeinstrumentation, andworkstation arrangement

NAUTMandatory:

NoNAV

Basic bridge design,instrumentation, locationof equipment and bridgeprocedures with bridgedesign and bridge controlconsole.

Compliance with SOLASV/15 and IMO MSC/Circ.982 on ergonomiccriteria for bridgeequipment and layout

2 Definitions

2.1 Terms

2.1.1 Abnormal conditions. When the criteria for normal conditions are not met, or when the officer of thewatch becomes unfit to perform his duties and has not yet been replaced by another qualified officer.

2.1.2 Additional functions. Functions that may be performed on the bridge, but not related to the primarybridge functions. Examples of such functions are:

— general communication functions— cargo monitoring and planning functions— extended monitoring and control of machinery— monitoring and control of mooring equipment.

2.1.3 Bridge. The area from which the navigation and control of the ship are exercised, including thewheelhouse and the bridge wings (if applicable).

2.1.4 Bridge operation. Comprises all tasks, decisions, routines, procedures, operations, etc., to be carriedout by the navigators in connection with the piloting of the craft.

2.1.5 Bridge system. Incorporates the human operator(s), the technical system, the man/machine interfaceand the operational procedures.

2.1.6 ENC. Electronic Navigational Chart

2.1.7 ECDIS. Electronic Chart Display and Information System complying with the requirements given byIMO and IHO.

2.1.8 Field of vision. Angular size of scene that can be observed from a definite position.

2.1.9 Navigation. All tasks and activities, including route monitoring, with the aim of determining andcontrolling the craft’s position, course and speed in relation to the planned route and the surrounding waters.

2.1.10 Normal conditions. When all systems and equipment related to navigation operate within designlimits, and environmental conditions with regard to weather and traffic do not cause excessive operatorworkloads.

Part

6 C

hapt

er 3

Sec

tion

1


DNV GL AS

2.1.11 Primary bridge functions. Functions related to the maintenance of safe course and speed of the craftincluding but not limited to:

— navigation— route planning— collision avoidance— steering— harbour manoeuvring— monitoring functions— navigational and distress communication functions (internal and external communication).

2.1.12 Route monitoring. Continuous surveillance of the craft’s position, course and speed in relation to theplanned route and the surrounding waters.

2.1.13 Route planning. Pre-determination of the track, course and speed of the waters to be navigated andthe definition of suitable objects, distances and control bearings for proper and effective route monitoring.

2.1.14 Workstation. Position at which one or several tasks constituting a particular activity are carried out.

3 Documentation

3.1 General

3.1.1 Documentation shall be submitted as required by Table 2.

Table 2 Documentation Requirements

Object Documentation type Additional description Info

N010 – Bridge design drawing

Including:location of all navigational and manoeuvringequipment and configuration of bridge consoles

details such as dimensions of wheel house, bridgewings, entrances and type of doors to wheelhouseand flooring in wheelhouse.

AP

N050 – Navigation bridgewindows framing arrangementplan

N020 – Vertical field of visiondrawing

Navigation bridge

N030 – Horizontal field of visiondrawing

AP

Z090 – Equipment list AP

Z030 – Arrangement plan Location of equipment not located on the bridge ifrelated to primary bridge functions. AP

Z140 – Test procedure for quayand sea trials

Including programme for on-board testing ofbridge equipment. AP

Navigation systems

Z160 – Operation manual FI

Part

6 C

hapt

er 3

Sec

tion

1


DNV GL AS

Object Documentation type Additional description Info

N060 – Manoeuvring booklet AP

Z140 – Test procedure for quayand sea trials

Manoeuvring trial test program specifying the testprocedure for all trials. APPropulsion and steering

arrangements, general

N080 – Pilot card AP

Navigation safetymanual Z250 – Procedure Copy of navigation safety manual, as described in

Sec. 6. AP

AP = For approval; FI = For informationACO = As carried out; L = Local handling; R = On request; TA = Covered by type approval; VS = Vessel specific

For general requirements for documentation, including definition of the info codes, see SHIP Pt.1 Ch.3 Sec.2.For a full definition of the documentation types, see SHIP Pt.1 Ch.3 Sec.3.

4 Certification

4.1 General

4.1.1 Products shall be certified as required by Table 3

Table 3 Certification Requirements

Object Certificatetype

Issued by Certificationstandard*

Additional description

All equipment to which this chapterapplies

PC Society Type Approval Certificate

*Unless otherwise specified the certification standard is the rules.PC = Product Certificate, MC = Material certificate, TR = Test report

For general certification requirements, see SHIP Pt.1 Ch.3 Sec.4.For a definition of the certification types, see SHIP Pt.1 Ch.1 Sec.4 and SHIP Pt.1 Ch.3 Sec.5.

5 Instruction manuals

5.1 General

5.1.1 Instruction manuals for all primary bridge equipment shall be kept on board. The manuals shall containnecessary information on:

— operation— testing— fault finding— repairs— maintenance.

Part

6 C

hapt

er 3

Sec

tion

1


DNV GL AS

6 Tests and trials

6.1 General

6.1.1 Tests which give evidence as to the satisfactory operation of all bridge equipment shall be carried out.Failure modes shall be simulated as realistically as possible.

6.1.2 Full scale tests of prototype craft shall be carried out to verify the operational safety in normal serviceconditions and in equipment failure situations. FMEA conclusion trials shall be carried out for each craft in aseries.

6.2 Handling, controllability and performance

6.2.1 Proof of complianceThe information on controllability and manoeuvrability which shall be contained in the craft operating manualshall include the characteristics under [6.5], as applicable, the list of parameters of the worst intendedconditions affecting the controllability and manoeuvrability according to [6.6], information on safe maximumspeeds as described in [5.9].(HSC Code 17.2.1)

6.2.2 The information on operating limitations which shall be contained in the route operational manual shallinclude the characteristics under [6.2.1] and [6.5.4].(HSC Code 17.2.2)

6.3 Weight and centre of gravity

6.3.1 Compliance with each of the handling, controllability and performance requirements shall beestablished for all combinations of weight and centre of gravity position significant for the operational safetyin the range of weights up to the maximum permissible weight.(HSC Code 17.3)

6.4 Effect of failures

6.4.1 The effect of any likely failure in handling and control devices, services or components (e.g. poweroperation, power assistance, trimming and stability augmentation) shall be assessed in order that a safe levelof craft operation can be maintained. Effects of failure identified as being critical according to the 2000 HSCCode annex 4 shall be verified in accordance with the 2000 HSC Code annex 9 .(HSC Code 17.4)

6.5 Controllability and manoeuvrability

6.5.1 Instructions to crew members shall be provided in the craft operating manual regarding requiredactions and craft limitations subsequent to prescribed failures.(HSC Code 17.5.1)

6.5.2 It is necessary to ensure that the effort required to operate the controls in the worst intendedconditions is not such that the person at the control will be unduly fatigued or distracted by the effortnecessary to maintain the safe operation of the craft.

Part

6 C

hapt

er 3

Sec

tion

1


DNV GL AS

(HSC Code 17.5.2)

6.5.3 The craft shall be controllable and be capable of performing those manoeuvres essential to its safeoperation up to the critical design conditions.(HSC Code 17.5.3)

6.5.4 When determining the operating limitations of a craft particular attention shall be paid to the followingaspects during normal operation and during and subsequent to failures:

— stopping in normal and emergency conditions— stability in the non-displacement mode about three axes and in heave— trim— roll— plough in— lift power limitations— broaching— slamming— bow diving.

Guidance note:Yawing = Zig-zag test, preferably 10°/10° should be performed.Turning = Turning circle trials at full speed ahead to both port and starboard should be performed.Stopping = The test is described in the 2000 HSC Code annex 9 clause 2 “Stopping”.

---e-n-d---of---g-u-i-d-a-n-c-e---n-o-t-e---

6.6 Change of operating surface and mode

6.6.1 There shall be no unsafe change in the stability, controllability or attitude of the craft duringtransition from one type of operating surface or mode to another. Information on change in the behaviourcharacteristics of the craft during transition shall be available to the master.(HSC Code 17.6)

6.7 Surface irregularities

6.7.1 Factors which limit the ability of the craft to operate over sloping ground and steps or discontinuitiesshall be determined, as applicable, and made available to the master.(HSC Code 17.7)

6.8 Acceleration and deceleration

6.8.1 The Society shall be satisfied that the worst likely acceleration or deceleration of the craft, due to anylikely failure, emergency stopping procedures or other likely causes, would not hazard the persons on thecraft.

6.9 Speeds

6.9.1 Safe maximum speeds shall be determined, taking account of the limitations from for the craft, modesof operation, wind force and direction and the effects of possible failures of any one lift or propulsion systemover calm water, rough water and over other surfaces as appropriate to the craft.(HSC Code 17.9)

Part

6 C

hapt

er 3

Sec

tion

1


DNV GL AS

6.10 Minimum depth of water

6.10.1 The minimum depth of water and other appropriate information required for operations in all modesshall be determined.(HSC Code 17.10)

6.11 Night operation

6.11.1 The schedule of tests shall include sufficient operation to evaluate the adequacy of internal andexternal lighting and visibility, under conditions of normal and emergency electrical power supply duringservice, cruising and docking manoeuvres.(HSC Code 17.12)

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

SECTION 2 NAVIGATIONAL EQUIPMENT

1 Equipment requirements

1.1 General

1.1.1 This chapter covers items of equipment which relate to the navigation of the craft as distinct from thesafe functioning of the craft. The following paragraphs set out the minimum requirements.(HSC Code 13.1.1)

1.1.2 The range of instrumentation shall be sufficient for safe and efficient navigation in the waters that thecraft is permitted to operate.

1.1.3 The basis for evaluation is the type, size, speed and trade of craft together with any condition that mayaffect the navigator’s ability to establish and maintain a safe course and speed.

1.1.4 The navigational equipment and its installation shall be to the satisfaction of the Society, and accordingto description in these rules.

1.1.5 The Society, shall determine to what extent the provisions of this chapter do not apply to craft below150 gross tonnage.

1.1.6 The information provided by navigational systems and equipment shall be so displayed that theprobability of misreading is reduced to a minimum. Navigational systems and equipment shall be capable ofgiving readings to an optimum accuracy.(HSC Code 13.1.3)

1.2 Compasses

1.2.1 Craft shall be provided with a magnetic compass which is capable of operating without electricalsupply, and which may be used for steering purposes. This compass shall be mounted in a suitable binnaclecontaining the required correcting devices and shall be suitable for the speed and motion characteristics ofthe craft.(HSC Code 13.2.1)

1.2.2 The compass card or repeater shall be capable of being easily read from the position at which the craftis normally controlled.(HSC Code 13.2.2)

1.2.3 The magnetic compass shall be properly adjusted and its table or curve of residual deviations shall beavailable at all times.(HSC Code 13.2.3)

1.2.4 Care shall be taken in siting a magnetic compass or magnetic sensing element so that magneticinterference is eliminated or minimised as far as is practicable.(HSC Code 17.2.4)

1.2.5 Craft shall be provided with 2 gyrocompasses, which shall be suitable for the speed and motioncharacteristics and area of operation of the craft.

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

1.2.6 The gyro compass system shall perform according to performance standard in the latitudes where thecraft shall operate and with the speed it will achieve.

1.2.7 The gyro compasses shall be provided with automatic correction of the errors induced by speed andlatitude.

1.2.8 A comparison function between the outputs of two compasses shall be arranged. An alarm shall beinitiated when a deviation exceeds a pre-set limit.

1.3 Speed and distance measurement

1.3.1 Craft shall be provided with a device capable of measuring and or indicating speed and distancethrough the water.

1.4 Echo-sounding device

1.4.1 Non-amphibious craft shall be provided with an echo-sounding device which will give an indication ofdepth of water to a sufficient degree of accuracy for use when the craft is in the displacement mode.(HSC Code 13.4.1)

1.5 Radar installation

1.5.1 Craft shall be provided with at least one azimuth-stabilized radar operating on 9 GHz. A secondazimuth-stabilized radar independent of the first one, shall be provided.

1.5.2 Both radars shall be provided with ARPA facilities, suitable for the motion and speed of the craft.

1.5.3 Adequate communication facilities shall be provided between the radar observer and the person inimmediate charge of the craft.(HSC Code 13.5.4)

1.5.4 Each radar installation provided shall be suitable for the intended craft speed, motion characteristicsand commonly encountered environmental conditions.(HSC Code 13.5.5)

1.5.5 Each radar installation shall be mounted so as to be as free as practicable from vibration.(HSC Code 13.5.6)

1.5.6 Both radars shall include the ability to display selected parts of SENC, that is, the ECDIS database asspecified for this feature in the IMO performance standards for radars. These radars shall also be able todisplay the ship's position and the route plan used on the ECDIS.

1.6 Electronic positioning systems

1.6.1 Craft shall be provided with two independent receivers for global navigation satellite system or aterrestrial radio navigation system, or other means, suitable for use at all times throughout the intendedvoyage to establish and update the craft’s position by automatic means.

1.6.2 The equipment shall be able to display the craft’s position continuously. The updating frequency shallbe minimum 2 Hz or better.

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

1.7 Rate-of-turn indicator and rudder angle indicator

1.7.1 Craft shall be provided with a rate-of-turn indicator. The scaling of the indicator must be adequate tothe possibility of the ships behaviour.

1.7.2 Craft shall be provided with an indicator showing the rudder angle. In craft without a rudder, theindicator shall show the direction of steering thrust.(HSC Code 13.7.2)

1.8 Nautical charts and nautical publications

1.8.1 Craft shall be provided with an electronic chart display and information system (ECDIS)

1.8.2 Back-up arrangements shall be provided to meet the functional requirements of [1.8.1].If no ENC coverage in the operating area or parts of the operating area, adequate paper chart folio accordingto the administration to be provided.

Guidance note:Authorisation may have to be obtained by the Flag State and possibly by Port States when ECDIS is intended to meet the chartcarriage requirement in SOLAS.


1.9 Other navigational aids

1.9.1 Craft shall be provided with at least one adequate searchlight which shall be controllable from theoperating station.(HSC Code 13.9.1)

1.9.2 One portable daylight signalling lamp shall be provided and maintained ready for use in the operatingcompartment at all times.(HSC Code 13.9.2)

1.10 Night vision equipment

1.10.1 When operational conditions justify the provision of night vision equipment, such equipment shall beprovided.(HSC Code 13.10.1)

Guidance note:Night vision equipment may be imperative in areas where floating objects (e.g. pleasure boats, canoes, timber, etc.) without navigationlights are very common and thus constitutes a navigational hazard. Night vision equipment should be operated by a dedicated person.The location should not interfere with the darkness adaptation of the navigators.


1.11 Steering arrangement and propulsion indicator(s)

1.11.1 The steering arrangement shall be so designed that the craft turns in the same direction as that ofthe wheel, tiller, joy stick or control lever.(HSC Code 13.11.1)

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

1.11.2 Craft shall be provided with means to show the mode of the propulsion system(s).(HSC Code 13.11.2)

1.11.3 Craft with emergency steering positions shall be provided with arrangements for supplying visualcompass readings to the emergency steering position.(HSC Code 13.11.3)

1.12 Heading control system (automatic pilot)

1.12.1 Craft shall be provided with a heading control system (automatic pilot).(HSC Code 13.12.1)

1.12.2 Provision shall be made to change from the automatic to manual mode by a manual override. Thisoverride function shall be in accordance with requirements for steering in [1.11.1].

Guidance note:If a computer based system can affect the speed and or heading of the craft, a functional failure analysis is required. If a systemfailure can cause a hazardous or catastrophic effect in the relevant operational modes, in particular:

— normal seagoing conditions at full speed, and

— maximum permitted operating speed in congested waters, a Failure Mode and Effect Analysis (FMEA) may be required.


1.12.3 Track control (optional)If a track control system is fitted this shall comply with performance standards not inferior to those adoptedby the organisation.

— Performance standards for track control systems (resolution MSC.74(69) annex 2).— Performance standards for automatic steering aids (automatic pilots) for high-speed craft (resolution

A.822(19)).— Performance Standard for an integrated navigation system (INS) resolution MSC.86(70).

1.12.4 All sensors used in the track control system shall continuously provide sufficient updating frequency(see [1.6.2]).

1.12.5 Track control systems shall be certified, unless type approved for use on High Speed Craft.

1.13 Radar reflector

1.13.1 If practicable, craft of 150 gross tonnage or below shall be provided with a radar reflector, or othermeans, to assist detection by ships navigating by radar at both 9 GHz and 3 GHz.(HSC Code 13.13)

1.14 Sound reception system

1.14.1 The craft shall be provided with a sound reception system, or other means, to enable the officer incharge of the navigational watch to hear sound signals and determine their direction.(HSC Code 13.14)

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

1.15 Automatic identification system (AIS)

1.15.1 Craft shall be provided with an automatic identification system (AIS).(HSC Code 13.15.1)

1.15.2 AIS shall:

— provide automatically to appropriately equipped shore stations, other vessels and aircraft information,including the craft’s identity, type, position, course, speed, navigational status and other safety-relatedinformation

— receive automatically such information from similarly fitted vessels— monitor and track vessels, and— exchange data with shore based facilities.

(HSC Code 13.15.2)

1.15.3 AIS shall be operated taking into account the guidelines adopted by IMO.

1.16 Voyage data recorder

1.16.1 To assist in casualty investigations, passenger craft irrespective of size and cargo craft of 3 000 grosstonnage and upwards shall be provided with a voyage data recorder (VDR).(HSC Code 13.16.1)

2 Power supply

2.1 Electrical power supply

2.1.1 A local distribution panel shall be arranged exclusively for primary bridge systems. The panel shallbe supplied directly from both main switchboards, or from one main switch-board and the emergencyswitchboard or a continuously powered source (UPS), arranged with automatic change-over between the twosupplies.

Guidance note:The following are considered to be primary bridge systems:

— position fixing system

— ECDIS

— radar

— gyro compass

— heading control system/track control system

— speed log

— echo sounder

— internal communication

— external communication

— alarm system.


2.1.2 Loss of any power to the required distribution panels shall initiate an alarm.

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

3 Alarm system

3.1 Bridge alarm management

3.1.1 Alarm systems shall be provided which announce at the craft's control position, by visual and audiblemeans, malfunctions or unsafe conditions. Alarms shall be maintained until they are accepted and the visualindications of individual alarms shall remain until the fault has been corrected. If an alarm has been acceptedand a second fault occurs before the first is rectified, the audible and visual alarms shall operate again. Alarmsystems shall incorporate a test facility.(HSC Code 11.4.1)

3.1.2 Bridge alarms and warnings shall be centralised in one common panel or screen on the bridge enablingeasy identification of the source of the alarm and rapid cancellation of the audible alarm. The bridge alarmsystem may be part of a computerised system and presented on a screen. The bridge alarm system shallprovide visual and audible indication of system and equipment malfunction, operational warnings related torisk of grounding and collision and improper watch-keeping.

3.1.3 The central alarm system shall at least include system failure alarms and operational warnings initiatedby the following equipment and systems:

— collision avoidance system— AIS— heading monitoring system.— watch monitoring system— heading information system— radar and ARPA— GPS— heading and/or track control— ECDIS— speed log— echo sounder.

3.1.4 The indications displayed on the alarm panel shall be continuously available and readable when thenavigation systems are in operation. All warnings required by [3.1.3], [3.1.7] and [3.1.8] shall be providedat all stations at which control functions may be exercised.

3.1.5 It shall be possible to cancel the audible alarm on the individual equipment and the correspondingalarm at the central alarm panel by a single operator action.

3.1.6 Permanently inhibiting alarm units shall not be possible. Manually inhibiting local audible alarms maybe accepted when this is clearly indicated and the unit is part of the alarm management system.

Guidance note:Suppressing local audible alarms manually may be done by means of an on and off switch located on or close to the equipment orby other means, for example electronically. The off-position should enable suppression of the audible alarm when the equipment ispart of a central alarm system and the on-position should engage the local alarm when the equipment serves as a stand-alone unit.


3.1.7 Emergency alarms giving indication of conditions requiring immediate action shall be distinctive and infull view of crew members in the operating compartment, and shall be provided for the following:

— activation of a fire-detection system— total loss of normal electrical supply

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

— overspeed of main engines— thermal runaway of any permanently installed nickel-cadmium battery.

(HSC Code 11.4.1.1)

3.1.8 Alarms with a visual display distinct from that of alarms referred to in [3.1.7] shall indicate conditionsrequiring action to prevent degradation to an unsafe condition. These shall be provided for at least thefollowing:

— exceeding the limiting value of any craft, machinery or system parameter other than engine overspeed— failure of normal power supply to powered directional or trim control devices— operation of any automatic bilge pump— failure of navigational system, ref [3.1.3]— low level of a fuel tank contents— fuel oil tank overflow— extinction of side, masthead or stern navigation lights;— low level of contents of any fluid reservoir the contents of which are essential for normal craft operation— failure of any connected electrical power source— failure of any ventilation fan installed for ventilating spaces in which inflammable vapours may

accumulate, and— diesel engine fuel line failure as required by 9.4.2 in HSC Code.

(HSC Code 11.4.1.2)

3.1.9 The alarm system shall meet appropriate constructional and operational requirements for requiredalarms.(HSC Code 11.4.2)

Guidance note:Refer to the Code on Alarms and Indicators, 1995, adopted by the Organization by resolution A.830(19) and Performance Standardfor watch alarm system , IMO res. MSC. 128(75)


3.1.10 Equipment monitoring the passenger, cargo and machinery spaces for fire and flooding shall, sofar as is practicable, form an integrated sub-centre incorporating monitoring and activation controls forall emergency situations. This sub-centre may require feed-back instrumentation to indicate that actionsinitiated have been fully implemented.(HSC Code 11.4.3)

3.1.11 Main propulsion machinery room(s) shall in addition have detectors sensing other than smoke and besupervised by TV cameras monitored from the operating compartment.(HSC Code 7.7.1, part of)

3.1.12 The detection system shall initiate audible and visual alarms distinct in both respects from the alarmsof any other system not indicating fire, in sufficient places to ensure that the alarms are heard and observedon the navigating bridge and by a responsible engineer officer.(HSC Code 7.7.2.1, part of)

3.1.13 Indicators shall be provided on the navigating bridge which shall indicate when any door leading to orfrom the special category space or ro-ro space is closed.(HSC Code 7.8.1.2)

3.1.14 Means shall be provided to indicate in the operating compartment any loss or reduction of therequired ventilating capacity.

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

(HSC Code 7.8.5.3)

3.1.15 The location of the radio equipment shall not interfere with the primary navigational functions in theoperating station.(HSC Code 15.4.6)

4 Approval of equipment

4.1 Approval of system equipment and performance standards

4.1.1 Before giving approval to navigational systems or equipment embodying new features not coveredby this chapter, the Society shall ensure that such features support functions at least as effective as thoserequired by this chapter.(HSC Code 13.17.3)

4.1.2 When equipment, for which performance standards have been developed by the organisation, iscarried on craft in addition to those items of equipment required by this chapter, such additional equipmentshall be subject to approval and shall, as far as practicable, comply with performance standards not inferiorto those adopted by the organisation.(HSC Code 13.17.4)

Guidance note:See the following recommendations adopted by the organisation:

— Recommendation on performance standards for magnetic compasses (resolution A.382(X))

— Recommendation on performance standards for marine transmitting magnetic heading devices (THDs) (resolution MSC.86(70),annex 2)

— Recommendation on performance standards for Gyro-compasses for high-speed craft (resolution A.821(19))

— Recommendation on performance standards for devices to indicate speed and distance (resolution A.824(19), as amended byresolution MSC.96(72))

— Recommendation on performance standards for echo-sounding equipment (resolution A.224(VII) as amended by resolutionMSC.115(73), annex 2)

— Recommendation on performance standards for navigational radar equipment for high-speed craft (resolution A.820(19))

— Recommendation on performance standards for “Auto Tracking” (resolution MSC.114(73), annex 4, appendix 1)

— Recommendation on performance standards for shipborne Decca navigator receivers (resolution MSC.112(73))

— Recommendation on performance standards for shipborne Loran-C and Chayka receivers (resolution A.818(19))

— Recommendation on performance standards for shipborne global positioning system receiver equipment (resolutionMSC.112(73))

— Recommendation on performance standards for shipborne GLONASS receiver equipment (resolution MSC.113(73))

— Recommendation on performance standards for shipborne DGPS and DGLONASS maritime radio beacon receiver equipment(resolution MSC.114(73), annex 2)

— Recommendation on performance standards for combined GPS/GLONASS receiver equipment (resolution MSC.115(73), annex1)

— Performance standards for rate-of-turn indicators (resolution A.526(13))

— Recommendation on performance standards for night vision equipment for high-speed craft (resolution MSC.94(72))

— Recommendation on performance standards for daylight signalling lamps (resolution MSC.95(72))

— Recommendation on performance standards for automatic steering aids (automatic pilots) for high-speed craft (resolutionA.822(19))

— Recommendation on performance standards for sound reception systems (resolution MSC.86(70), annex 1) and

— Recommendation on performance standards for marine transmitting heading devices (THDs) (resolution MSC.116(73)).

— Recommendation on performance standards for track control systems (resolution MSC.74(69) annex 2)

— Recommendation on performance standards for Automatic Identification System (AIS) (resolution MSC.74(69) annex 3)

Part

6 C

hapt

er 3

Sec

tion

2


DNV GL AS

— Recommendation on performance standards for shipborne Voyage Data Recorder (VDR) (resolution A.861(20)).


Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

SECTION 3 OPERATING COMPARTMENT LAYOUT

1 Operating compartment design and layout

1.1 General

1.1.1 The design and layout of the compartment from which the crew operate the craft shall be such as topermit operating crew members to perform their duties in a correct manner without unreasonable difficulty,fatigue or concentration, and to minimise the likelihood of injury to operating crew members in both normaland emergency conditions.(HSC Code 15.2)

1.2 Field of vision from the operating compartment

1.2.1 The navigator's field of vision while seated at the workstation for command and workstation fornavigation, shall be sufficient to enable him or her to comply with the International Regulations forPreventing Collisions at Sea. As a consequence, the horizontal field of vision from the command andnavigation workstations shall at least extend over an arc from 22.5° abaft the beam on one side, throughdead ahead, to 22.5° abaft the beam on the other side.

1.2.2 The total arc of blind sectors from right ahead to 22.5° abaft the beam on either side shall not exceed20°. Each individual blind sector shall not exceed 5°. The clear sector between two blind sectors shall not beless than 10°.(HSC Code 15.3.3)

1.2.3 The field of vision while seated at the workstation for command and the workstation for navigationshall allow a forward view of the bow. Furthermore, the view of the sea surface from the workstations forcommand and navigation shall not be obscured by more than one (1) craft length in any direction from deadahead to at least 90° on each respective side.

Guidance note:The sea surface view from the workstations shall not be obscured with more than one (1) craft length from dead ahead to at least90º to the side where the workstation is located


1.2.4 The field of vision from the workstation for command and the workstation for navigation shall enablethe navigator to utilise leading marks astern of the craft as means for track monitoring.

Guidance note:A horizontal field of vision of at least 10 degrees should be obtained dead astern from each workstation.


1.2.5 The field of vision from the workstations for command and navigation shall permit the navigatorto position the craft alongside a wharf without difficulty, to both port and starboard side respectively.Alternatively; separate docking workstation(s) shall be located in adequate position(s).

Guidance note:While seated at the starboard workstation; the operator should be able to see the distance from the ship's starboard side to the wharfboth fore and aft. While seated at the port workstation; the operator should be able to see the distance from the ship's port side tothe wharf both fore and aft. For craft which cannot achieve the required field of vision without unreasonable difficulty a number ofvideo cameras in suitable positions may be an acceptable solution which is subject to approval in each case.


Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

1.3 Console configuration

1.3.1 Consoles shall principally be divided into two areas:

— a vertical (slanting) part for location of information displays to be easily readable (see Figure 1)— a horizontal part (desktop) for controls, switches and buttons to be within easy reach from the working

position.

Figure 1 Easily readable

1.3.2 The height of console desktops at the workplaces for navigation, manoeuvring, traffic surveillance andmonitoring shall enable easy use of equipment required for safe performance of the tasks to be performedfrom both standing, when applicable, and sitting position.

— To provide a functional reach from sitting position, the sitting height is governed by the elbow height inrelation to console desktop.

— To provide a functional reach of equipment and easy operation of controls from sitting position, the elbowheight of the operator should preferably be 50 mm higher than the console desktop and not less than theheight of the desktop.

— To provide the elbow height required for persons of different size and build in relation to the consoledesktop, it should be possible to adjust the height of the seat to allow an elbow height of 240 mm +/- 55mm above the seat. It should be possible to adjust chair armrests accordingly, if installed, and to fold thearmrests away.Guidance note:The leg room should have a depth of 450 mm and not less than required for a person sitting at a working position 350 mm from theconsole (chair backrest 440 mm from the edge of the console, requiring a leg room depth of at least 230 mm.)


Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

Figure 2 The console in front of a seated working position shall provide sufficient leg room.

1.3.3 The top of the consoles forming the front workstations shall not be higher than 1200 mm, including thefoundation of the consoles. The top of the consoles shall not obstruct the field of vision over the lower edgeof the windows in front of the workstation from sitting position.

Guidance note:The console height should not exceed 1200 mm. This console height may be accepted for installation at a distance of 350 mm ormore from the window, also if it interferes with the line of sight from an eye height of 1400 mm, providing the height of the chaircan be adjusted to compensate for the interference.See Figure 3 for eye heights at standing position


Figure 3 Console height

Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

1.3.4 Consoles within the required field of vision aft of the front workstation consoles shall not obstruct thehorizontal line of sight from the sitting eye height.

Guidance note:The height of the consoles should be 100 mm lower than the horizontal line of sight from a seated position and should not exceed 1300mm. If printers, or other equipment, are installed on top of the console, the total height should not exceed the prescribed 1300 mm.


1.4 Windows

1.4.1 Divisions between windows, located in the front, on the sides and in the doors, shall be kept to aminimum. No divisions shall be installed immediately forward of the operating stations.(HSC Code 15.7.1)

Guidance note:The framing between windows, especially within the field of vision as described in 200, should not exceed 150 mm. If stiffeners areused, this space should be less than 100 mm and the depth of the stiffeners less than 120 mm.


1.4.2 The Society shall be satisfied that a clear view through the operating compartment windows isprovided at all times regardless of weather conditions. The means provided for maintaining the windows ina clear condition shall be so arranged that no reasonably probable single failure can result in a reduction ofthe cleared field of vision such as to interfere seriously with the ability of the operating crew to continue theoperation and bring the craft to rest.

Guidance note:Efficient systems should be provided, including heavy duty wipers, fresh-water wash, de-misting and de-icing. Operating controls tobe positioned within reach while seated at the workstation for the officer in charge or assisting officer.


1.4.3 Arrangements shall be provided so that the forward view from operating stations is not adverselyaffected by solar glare. Neither polarised nor tinted window glass shall be fitted.(HSC Code 15.7.3)

Guidance note:Removable sunscreens or sun curtains with minimum colour distortion should be provided for at least the front windows.


1.4.4 Operating compartment windows shall be angled to reduce unwanted reflection.(HSC Code 15.7.4)

Guidance note:The windows in front should preferably be angled top outwards, 15° to 25° from the vertical, see also ISO 8468.


1.4.5 The windows shall be made of material which will not break into dangerous fragments if fractured.(HSC Code 15.7.5)

1.5 Chairs

1.5.1 When a chair at a station from which the craft may be operated has been adjusted so as to suit theoccupant, subsequent change of seat position to operate any control shall not be acceptable.

Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

1.5.2 Installed chair at a workplace for operations shall be fastened to rails allowing fore and aft movementof the chair to enable easy reach of equipment when seated and, if applicable, sufficient room to stand infront of the console when the chair is pushed back. It shall be possible to adjust the height of the seat to suitusers of different heights for optimum view and reaching distance and armrests, if provided, shall be of foldaway type and preferably adjustable in height.

Guidance note:The seat height of the chair should be adjustable from 550 to 670 mm above the deck surface. The movement in fore-aft directionshould allow the front edge of the seat to be positioned at the edge of the front console and to allow a free space of at least 700mm between the chair and console when moved in aft direction. Armrests should preferably be adjustable from 185 and 295 mmabove the seat if installed.


1.6 Operating compartment

1.6.1 The design and arrangement of the operating compartment, including location and layout of theindividual workstations, shall ensure the required field of vision for each function.(HSC Code 15.4.1)Blind sectors shall be as few and as small as possible, and not adversely affect the keeping of a safe lookoutfrom the operating station. If stiffeners between windows are to be covered, this shall not cause furtherobstruction inside the wheelhouse.(HSC Code 15.3.2)

1.6.2 The craft’s operating compartment shall not be used for purposes other than navigation,communications and other functions essential to the safe operation of the craft, its engines, passengers andcargo.

1.6.3 The operating compartment shall be provided with an integrated operating station for command,navigation, manoeuvring and communication and so arranged that it can accommodate those personsrequired to navigate the craft safely.

1.6.4 The arrangement of equipment and means for navigation, manoeuvring, control, communication andother essential instruments shall be located sufficiently close together to enable both the officer in chargeand any assisting officer to receive all necessary information and to use the equipment and controls, asrequired, while they are seated. If necessary, the equipment and means serving these functions shall beduplicated. A functional workstation designed in accordance with the established overall operational andergonomic requirements must provide:

— a sufficient area for performance of the tasks to be carried out by the number of people that may berequired to attend

— consoles designed for operations at specific workplaces in standing and seated position,— enabling installation of equipment to be within reach (see Figure 5) from the working position— avoiding obstruction of the view through bridge windows from seated position— chairs suiting ergonomic requirements for efficient use of installed equipment and maintenance of field of

vision, if chairs shall be installed.

Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

Figure 4 Within reach

Guidance note:Within reach from a seated position is defined as within 1000 mm and within 800 mm for frequently used equipment.Within reach from a standing position is defined as within 800 mm in the forward direction and within 1400 mm in sideways directions.


1.6.5 Both workstations is intended to serve both navigation and traffic surveillance and manoeuvringfunctions, and essential equipment for traffic surveillance and manoeuvring, such as the ARPA and ECDIS. Inaddition means for controlling speed and course, should be within reach from both workstations.An acceptable solution, instead of the duplication of required equipment, may be to install the essentialequipment, indicated in Figure 5, within reach from the working position at both workstations.

Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

Figure 5 Example of location of main equipment

1.6.6 The command workstation shall enable the following functions or tasks to be performed:

— surveillance of craft's position, course and speed made good in relation to planned track and surroundingwaters by means of ECDIS

— analyse the traffic situation and decide on collision avoidance manoeuvre— alter course— change speed— effect internal and external communications— operate auxiliary manoeuvring systems, if fitted— monitor time, course, speed, engine revolutions, pitch or thrust indicator and rudder angle or direction of

steering thrust.

1.6.7 The navigation workstation shall enable the following functions or tasks to be performed:

— surveillance of craft's position, course and speed made good in relation to planned track and surroundingwaters by means of ECDIS

— analyse the traffic situation and decide on collision avoidance manoeuvre— plotting of the craft's position, course and speed made good— alter course— change speed— effect internal and external communication— monitor time, course, speed, engine revolutions, pitch or thrust indicator and rudder angle or direction of

steering thrust.

Guidance note:

Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

In accordance with the functions or tasks to be performed at each workstation, equipment or displays serving the various functionsshould be available as follows:Workstation for navigation

— radar display with chart overlay

— ECDIS

— engine controls

— steering control.

Workstation for command

— radar display with chart overlay and AIS presentation

— radar plotting aid

— ECDIS

— engine control

— steering control.

Instruments and equipment of common interest to both the navigation and the command workstation should be located accordingly.Such instruments and equipment, if fitted, include:

— automatic steering device

— rudder angle or steering thrust indicator

— gyro repeater

— speed and distance log

— engine revolution indicator

— pitch or thrust indicator

— wind direction and speed indicator

— echo sounder

— internal communication systems

— VHF radiotelephone

— emergency stop controls

— rate of turn indicator

— whistle control

— searchlight controls

— magnetic compass display

— window wiper and wash control

— AIS operation unit

— clock.


If a separate workstation for supervision of engine performance is placed in the operating compartment,the location and use of this workstation shall not interfere with the primary functions to be performed in theoperating station.(HSC Code 15.4.5)

1.6.8 In all craft, the station or stations in the operating compartment from which control of craftmanoeuvring and/or of its main machinery is exercised shall be provided, within easy reach of the crewmember at that station, with controls for use in an emergency to:

— activate fixed fire-extinguishing systems— close ventilation openings and stop ventilating machinery supplying spaces covered by fixed fire-

extinguishing systems, if not incorporated in preceeding item— shut off fuel supplies to machinery in main and auxiliary machinery spaces— disconnect all electrical power sources from the normal power distribution system (the operating control

shall be guarded to reduce the risk of inadvertent or careless operation), and— stop main engine(s) and auxiliary machinery.

Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

(HSC Code 11.3.1)

1.6.9 The control panel shall be located in the operating compartment or in the main fire control station.(HSC Code 7.7.1.1.5)

1.6.10 The design and layout of the compartment from which the crew operate the craft and the relativepositions of the primary controls shall be assessed against the essential operational manning level. Whereminimum manning levels are proposed, the design and layout of the primary and communication controlsshall form an integrated operational and emergency control centre from which the craft can be controlledunder all operational and emergency events by the operating crew without the necessity for any crewmember to vacate the compartment.(HSC Code 15.4.7)

1.6.11 The relative positions of the primary controls and the seats shall be such that each operating crewmember, with the seat suitably adjusted, and without prejudicing compliance with 15.2 ([1.1.1]) can:

— without interference, produce full and unrestricted movement of each control both separately and with allpractical combinations of movement of other controls, and

— at all work stations, exert adequate control forces for the operation to be performed.

(HSC Code 15.4.8)

1.6.12 In craft where the Society considers the provision of a safety belt necessary for use by the operatingcrew, it shall be possible for those operating crew members, with their safety belts correctly worn, to complywith [1.5] except in respect of controls which it can be shown will only be required on very rare occasionsand which are not associated with the need for safety restraint.

1.6.13 Adequate arrangements shall be made to prevent passengers from distracting the attention of theoperating crew.(HSC Code 15.4.12)

1.7 Instrument installation

1.7.1 Instruments, instrument panels and controls shall be permanently mounted in consoles or otherappropriate places, taking into account operation, maintenance and environmental conditions. However, thisshall not prevent the use of new control or display techniques, provided the facilities offered are not inferiorto recognised standards.(HSC Code 15.5.1)

1.7.2 All instruments shall be logically grouped according to their functions. In order to reduce to a minimumthe risk of confusion, instruments shall not be rationalised by sharing functions or by interswitching.(HSC Code 15.5.2)

1.7.3 Instruments required for use by any member of the operating crew shall be plainly visible and easilyread:

— with minimum practicable deviation from his normal seating position and line of vision, and— with the minimum risk of confusion under all likely operating conditions.

(HSC Code 15.5.3)

1.7.4 Instruments essential for the safe operation of the craft shall be clearly marked with any limitation ifthis information is not otherwise clearly presented to the operating crew. The instrument panels forming theemergency control for the launching of life rafts and the monitoring of the fire-fighting systems shall be inseparate and clearly defined positions within the operating area.

Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

(HSC Code 15.5.4)

1.7.5 The instruments and controls shall be provided with means for screening and dimming in order tominimise glare and reflections and prevent them being obscured by strong light.(HSC Code 15.5.5)

1.7.6 The surfaces of console tops and instruments shall have dark glare-free colours.(HSC Code 15.5.6)

1.7.7 Instruments and displays, providing visual information to more than one person, shall be located foreasy viewing by all users concurrently. If this is not possible, the instrument or display shall be duplicated.(HSC Code 15.5.7)

1.7.8 If no ENC is available in the operation area, the operating compartment shall be provided with meansfor chart work. There shall be facilities for lighting the chart. Chart table lighting shall be screened.

1.8 Communication facilities

1.8.1 Such means as are necessary shall be provided to enable the crew to communicate between, and haveaccess to, each other and with other occupants of the craft in both normal and emergency conditions.(HSC Code 15.8.1)

1.8.2 Means to communicate between the operating compartment and spaces containing essentialmachinery, including any emergency steering position, irrespective of whether the machinery is remotely orlocally controlled, shall be provided.(HSC Code 15.8.2)

1.8.3 Where control of propulsion and manoeuvring is provided at stations outside the operatingcompartment, such stations shall have direct communication with the operating compartment which shall bea continuously manned control station.(HSC Code 11.3.2)

1.8.4 Where control of propulsion or manoeuvring is provided at stations adjacent to but outside theoperating compartment, the transfer of control shall only be affected from the station which takes charge ofcontrol. Two-way voice communication shall be provided between all stations from which control functionsmay be exercised and between each such station and the look-out position.(HSC Code 11.2.3)

1.8.5 Adequate arrangements shall be provided for two-way voice communication between the operatingcompartment and persons engaged in dropping, weighing or releasing the anchors.(HSC Code 6.2.3)

1.8.6 There shall be a public address system covering all areas where passengers and crew have access,escape routes, and places of embarkation into survival craft. The system shall be such that flooding or fire inany compartment does not render other parts of the system inoperable.The public address system and its performance standards shall be approved by the Society having regard tothe recommendations developed by IMO.

Guidance note:Refer to the Recommendations on performance standards for public address systems on passenger ships, including cabling (MSC/Circ.808) and the Code on Alarms and Indicators, 1995 (resolution A.830(19)).


Part

6 C

hapt

er 3

Sec

tion

3


DNV GL AS

1.8.7 Means for making public address and safety announcements from control stations to all areas to whichpassengers and crew have access shall be provided.(HSC Code 15.8.3)

1.8.8 Provisions shall be made for means to monitor, receive and transmit radio safety messages at theoperating compartment.(HSC Code 15.8.4)

Part

6 C

hapt

er 3

Sec

tion

4


DNV GL AS

SECTION 4 BRIDGE EQUIPMENT TESTS

1 General

1.1 Application

1.1.1 The requirements in this section apply to the testing and calibration of bridge equipment.

2 On-board testing of bridge equipment

2.1 General

2.1.1 After installation of equipment in craft requesting the additional class notation NAUT-HSC, on-boardtesting of the equipment shall be performed in order to ascertain that the equipment, as installed, operatessatisfactory.

2.2 Test program

2.2.1 A detailed program for the on-board testing of this equipment shall be submitted for approval at theearliest possible stage before sea trials.

2.2.2 The test program shall be in accordance with the requirements for on-board testing in [2.3] to [2.21],and shall specify in detail the tests to be performed for each type of equipment.

2.3 General requirements for the testing of all types of bridge equipment

2.3.1 Prior to testing, all equipment shall be checked and calibrated by a representative of the manufactureror the equipment supplier.

2.3.2 Prior to testing, all equipment, etc., necessary for the observation and recording of test results shall bemade available.

2.3.3 Equipment and systems shall be subject to the tests required to ascertain that all controls, indicators,displays, etc., operate in accordance with their specifications and meet the rule requirements.

2.3.4 Failure conditions shall be simulated on equipment and systems.

2.3.5 The instruments for performance of primary bridge functions shall be tested at black-out for a period ofup to and over 30 s. At least one of the tests shall be carried out at sea.

2.3.6 A demonstration including start-up of the individual systems and change-over from normal conditionsto failure conditions shall be carried out.

2.3.7 Tests, additional to the approved test program, may be required carried out by the surveyor.

2.4 Gyro compass

2.4.1 The settle point error of the master compass and the alignment with the craft’s centreline shall bedetermined.

Part

6 C

hapt

er 3

Sec

tion

4


DNV GL AS

2.4.2 The bearing repeaters’ alignment with the craft’s centreline shall be checked (if applicable).

2.4.3 The divergence between the master compass and the gyro repeaters shall be checked. After switchingto no. 2 compass, the divergence with the gyro repeaters shall be checked again.

2.4.4 The monitoring functions of the compass system shall be tested.

2.4.5 The means for correcting errors caused by speed and latitude shall be tested.

2.5 Automatic steering system

2.5.1 The course-keeping performance of the autopilot shall be tested at full sea speed. Adaptive autopilotsshall also be tested at reduced speed.

2.5.2 The performance of the autopilot shall be checked for a change in course of 10° and 90° to both sides.The overshoot angle shall be observed.

2.5.3 The off course alarm shall be tested.

2.5.4 The rate-of-turn or radius function shall be tested.

2.5.5 Change of operational steering mode shall be tested.

2.5.6 The override function shall be tested in all steering modes.

2.6 Rudder or steering thrust direction indicator(s)

2.6.1 The rudder or steering thrust direction indicator(s) on the bridge shall be checked.

2.7 Rate-of-turn indicator

2.7.1 The rate-of-turn indicator shall be tested and, if necessary, calibrated.

2.8 Echo sounder

2.8.1 Function testing of the echo sounder shall be carried out. Depth shall be measured at a fixed positionfor exact comparison of accuracy.

2.8.2 The depth warning or alarm shall be tested.

2.9 Speed log

2.9.1 The speed log shall be checked for accuracy and, if necessary, calibrated.

2.10 Electronic position-fixing systems

2.10.1 All electronic position-fixing fitted systems shall be function-tested.

2.10.2 The accuracy of the electronic position-fixing systems shall be checked.

Part

6 C

hapt

er 3

Sec

tion

4


DNV GL AS

2.11 Radar system

2.11.1 The accuracy of bearing of the radars shall be tested by the reading of at least 4 fixed positions onthe display at a known position of the craft.

2.11.2 The accuracy of range measurement shall be tested by measuring the distance to at least 2 fixedpositions at each range while the craft is in a known position.

2.11.3 The “heading marker” shall be checked against a visible target dead ahead.

2.11.4 Failure mode by disconnecting a fuse shall be observed.

2.11.5 Tests shall be carried out to verify the manual and automatic target acquisition facilities of the radarsystem including warnings when CPA/TCPA limits are exceeded.

2.11.6 When manoeuvring the ship, the normal functioning of the system, including automatic acquisition,shall be checked.

2.11.7 Sensor input and presentations shall be checked.

2.11.8 The radar overlay function (chart radar) to be checked, and verified that common reference point isused for range/bearing calibration.

2.12 Alarm system

2.12.1 The off-track monitoring system shall be tested. It shall be checked that the off-track alarm istransferred to the places specified if it is not acknowledged within the pre-set limit.

2.12.2 The traffic-monitoring function of the ARPA (guard zones and CPA or TCPA) shall be tested. It shall bechecked that the warning is transferred if not acknowledged within the pre-set limit.

2.12.3 The off- heading monitoring system shall be tested. It shall be checked that the off-course alarmfrom the heading control system and the compass deviation alarm from the compass monitor is transferredto the places specified if it is not acknowledged within the pre-set limit.

2.12.4 It shall be checked that the wheel over point approach alarm from the ECDIS is transferred to theplaces specified if it is not acknowledged within the pre-set limit.

2.12.5 The watch monitoring (dead-man) alarm system shall be tested and the transfer (if applicable) ofalarms checked.

2.13 Computer system(s)

2.13.1 The tests can be combined with tests specified for the different primary functions. Failure conditions,especially power failure in the computer system as well as the computer equipment, shall be simulated asrealistically as possible. Manual re-start and, if relevant, automatic re-start and automatic back-up shall betested. Successive power breaks shall be simulated.

2.13.2 If the computer system is used to carry out secondary functions, testing of the system shall becarried out with all primary functions in operation and with maximum load from both primary and secondaryfunctions.

Part

6 C

hapt

er 3

Sec

tion

4


DNV GL AS

2.14 Electronic chart display and information system, (ECDIS) includingback up system

2.14.1 The accuracy, functionality and the alarm or warning functions of the electronic chart display systemincluding the back up system, shall be tested. Performance of automatic functions, such as positioning ofthe ship by means of dead reckoning and GPS, plotting of the track and updating of the data base, shall beincluded in the tests together with the following operations:

— route planning— altering of the route while underway— positioning by bearings and ranges— manual adjustment of the ship's position on the screen— scale changes and zooming functions.

2.14.2 Self-check programs shall be run.

2.15 Track control system (if applicable)

2.15.1 The electronic chart display system is included in the testing of the Track control system if suchsystem is installed. The performance of the system, including alarm or warning functions, shall be testedalong a pre-planned route consisting of different courses.

2.15.2 The route shall consist of at least six course changes and include a course change not less than 135°at minimum radius turn to each side as well as a turn of approximately 90° at a radius of not less than 2nautical miles. The track keeping in a turn during essential speed reduction shall be tested. The alarm andwarning functions of the track keeping system shall be tested. Failure conditions shall be simulated to verifyconclusions of approved FMEA.

2.15.3 Self-check programs shall be run.

2.16 Conning display

2.16.1 The performance of the conning display shall be tested as well as the accuracy and readability of thedata displayed.

2.17 Voyage data recorder (VDR)

2.17.1 The voyage data recorder system, including all sensors, shall be subjected to a performance test.The test shall be conducted by an approved testing or servicing facility to verify the accuracy, duration andrecoverability of the recorded data.

2.18 Automatic identification system (AIS)

2.18.1 The, automatic identification system including all sensors, shall be subjected to a performance test.

2.19 Internal communication system

2.19.1 The automatic telephone system and internal communication system between workstations shall betested.

Part

6 C

hapt

er 3

Sec

tion

4


DNV GL AS

2.20 Nautical communication system

2.20.1 VHF or UHF systems shall be tested.

2.21 Sound reception system

2.21.1 The sound reception system shall be tested by measuring the sound level outside and inside thewheelhouse.

Guidance note:The fundamental frequency of the sound signal used in testing the system should be within the range of 70 Hz to 700 Hz.


Part

6 C

hapt

er 3

Sec

tion

5


DNV GL AS

SECTION 5 COMPARTMENT ENVIRONMENT

1 Bridge working environment

1.1 General

1.1.1 This section applies to conditions influencing the bridge working environment.

1.2 Temperature and ventilation

1.2.1 The operating compartment shall be equipped with adequate temperature and ventilation controlsystems.(HSC Code 15.9)

1.3 Colours

1.3.1 The surface materials inside the operating compartment shall have a suitable colour and finish to avoidreflections.(HSC Code 15.10)

Guidance note:Bright colours should not be used. Dark or mid-green colours are recommended, alternatively blue or brown. Colour can provide asense of warmth by the use of red and yellow, or coolness by the use of green and blue.


1.4 Vibration

1.4.1 Uncomfortable levels of vibration causing both short and long term effects shall be avoided in thebridge area.

a) The bridge should ideally be sited clear of the nodes and antinodes of the fundamental mode of verticalhull vibration, in order to avoid both longitudinal and vertical vibration.

b) The following table lists the vibration ranges which should be avoided:

Range Effect

0.1 to 0.5 Hz Motion sickness, particularly around 0.25 Hz

1.5 to 30 Hz Vision blur, particularly 10 Hz to 25 Hz

10 to 20 Hz Involuntary increase in muscle tone leading to difficulty in controlling postureand movement

Sum: 0 to 30 Hz majorsource of problems Magnitude of effects depends upon vibration amplitude

1.5 Noise

1.5.1 Uncomfortable levels of noise, or noise which may affect safe and efficient bridge operation, shall notoccur in the bridge area. Both short and long term effects shall be avoided.

Part

6 C

hapt

er 3

Sec

tion

5


DNV GL AS

a) The noise level in the wheelhouse should not exceed 65 dbA in good weather, with bridge instruments inoperation.

b) The noise of ventilation fans, intake fans and other noise sources should be excluded from bridgeoperational area by suitable siting of the fans and associated trunking.

c) The craft’s sirens or whistles should be sited as high as practicable and, if possible, forward of the bridge,so that the noise level will not exceed that of 110 dB(A) and so far as practicable should not exceed 100dB(A), when measured at bridge wing listening posts while proceeding at full service speed.

1.6 Lighting

1.6.1 A satisfactory level of lighting shall be available to enable the operating personnel to adequatelyperform all their tasks both at sea and in port, by day and night. There shall be only a limited reduction inthe illumination of essential instruments and controls under likely system fault conditions.(HSC Code 15.6.1)

1.6.2 Care shall be taken to avoid glare and stray image reflection in the operating area environment. Highcontrast in brightness between work area and surroundings shall be avoided. Non-reflective or matt surfacesshall be) used to reduce indirect glare to a minimum.(HSC Code 15.6.2)

1.6.3 A satisfactory degree of flexibility within the lighting system shall be available to enable the operatingpersonnel to adjust the lighting intensity and direction as required in the different areas of the operatingcompartment and at individual instruments and controls.(HSC Code 15.6.3)

1.6.4 Red light shall be used to maintain dark adaptation whenever possible in areas or on items ofequipment requiring illumination in the operational mode, other than chart table.(HSC Code 15.6.4)

1.6.5 During hours of darkness, it shall be possible to discern displayed information and control devices.(HSC Code 15.6.5)

1.7 Surfaces

1.7.1 The wheelhouse surface finishes shall be considered an integral part of the structure, layout andenvironment design.

1.7.2 All prepared surfaces shall be glare free.Guidance note:To achieve a glare free, matt finish for front part of deckhead, bulkheads, consoles, surfaces around and below windows and other,a short-haired fibre coating should be used.


1.7.3 Wheelhouse, bridge wing and upper bridge decks shall have a non-slippery surface when wet or dry.Guidance note:The level of friction on the wing and upper bridge decks should not decrease by more than 10% between dry and wet conditions.


1.7.4 All surfaces shall be robust enough to withstand the daily wear of the marine environment and requirea minimum of cleaning whilst retaining a good appearance.

Part

6 C

hapt

er 3

Sec

tion

5


DNV GL AS

Guidance note:All surfaces should be capable of withstanding without deterioration, a temperature range of –20°C to 70°C, sea water, oils andsolvent common to craft and ultra violet light.


1.8 Safety measures

1.8.1 The operating area shall be free of physical hazard to the operating personnel and have non-skidflooring in dry and wet conditions and adequate handrails. Doors shall be fitted with devices to prevent themmoving, whether they are open or closed.(HSC Code 15.11)

a) There should be no sharp edges or protuberances which could cause injury to personnel.b) The operating compartment deck should be free of trip hazards, such as curled up carpet edges, loose

gratings or equipment.c) Means should be provided for properly securing portable equipment.

1.8.2 All safety equipment on the bridge shall be clearly marked and easily accessible and have its stowageposition clearly indicated.

Part

6 C

hapt

er 3

Sec

tion

6


DNV GL AS

SECTION 6 OPERATIONAL PROCEDURES

1 Classification

1.1 Application

1.1.1 The requirements in this section apply to the provision of navigation procedures and safety manuals.

1.2 Introduction

1.2.1 An acceptable navigation safety standard can be obtained as follows:

a) By establishing and implementing a high standard of procedures and routines for normal operatingconditions, to reduce the probability of undesired and (potentially) hazardous events occurring.

b) By establishing and maintaining adequate emergency procedures, to counteract and handle an abnormalsituation. The aim will be to bring the situation back to normal, continue a controlled operation underabnormal condition or discontinue the operation in a safe and orderly manner.

1.2.2 Procedures shall ensure that watchkeeping arrangements are adequate for maintaining a safenavigational watch.

1.2.3 The officers of the watch shall be responsible for navigating the craft safely during their periods of dutyand carry out bridge operations in accordance with established procedures.

DNV GLDriven by our purpose of safeguarding life, property and the environment, DNV GL enablesorganizations to advance the safety and sustainability of their business. We provide classification andtechnical assurance along with software and independent expert advisory services to the maritime,oil and gas, and energy industries. We also provide certification services to customers across a widerange of industries. Operating in more than 100 countries, our 16 000 professionals are dedicated tohelping our customers make the world safer, smarter and greener.

SAFER, SMARTER, GREENER

dnvgl-ru-hslc-pt6ch3 navigation and manoeuvring

Documents