Book

All About Dynamic Positioning.

By Captain Charles Stuart

This book is available online only, as a commitment to lowering the carbon footprint, easy to update and to give access to anyone, anywhere, anytime.

This book contains practical DP Knowledge for all Deck Officers, Engineering and Technical Officers, Shore-based staff, and contractors working on DP vessels and others who wish to sharpen their DP skills!

 

DP Course Support

Online book “All About DP” is the main reference for DP course conducted by Capt. Charles Stuart

This online knowledge-based book is for all those, who are:

  • Keen to gain basic of DP.
  • Studying for Any level of study for a DPO Certificate.
  • DP-CPD training support for DPO and DPVM
  • Studying for DP Vessel Maintainer certificate.
  • Shore-based Management staff.
  • DP Supervisors and Training captain for DP vessels

All About DP is supplied via a LMS Learning management system using a Question and Answers knowledge-based system with easy to find menu system. (full menu below)

The site also has multiple choice questions and answers section for each subject if you want to test your knowledge and gain confidence.

Main Index

1.00.00 Layout of All About DP online Book

1.01.00 About online book and LMS

1.02.00 Complete index

1.03.00 Abbreviations and Terms

2.00.00 Chapter 2 – Continuing Professional Development

2.01.00 What is CPD

2.02.00   CPD – For All – Nautical Institute Standard

2.03.00   CPD – For Deck Officers and Practice exams

2.04.00   CPD – For Technical Staff and Practice exams

3.00.00 Chapter 3 – Dynamic Positioning

3.00.01 What is DP and History of development

3.01.00 Reasons why DP is used.

3.01.05 Safe Operation

3.01.10 Charterer requirements

3.01.15 Quick to Setup at new location

3.02.00 Six degree of freedom

3.03.00 Types of DP Vessels and Tasks

3.04.00 DP modes of operation

3.04.05 Follow target – Hold Relative

3.04.10 Follow ROV

3.04.15 Joystick auto heading

3.04.20 Track Follow

3.04.25 Center of Rotation

3.04.30 weather vane

3.04.35 Auto heading minimum thrust

3.04.40 Eco or Green mode

3.04.45 Auto surge, swap and Yaw

3.04.50 Fire monitor compensation mode

3.04.55 DP system standby mode / Joystick Bias

3.05.00 Classes of DP Vessels 0,1,2 and 3

3.05.05 IMO Class 1, Class 2 and Class 3

3.05.10 Worse Case Failure (WCF) & Design Intent (WCFDI)

3.05.15 Open / Closed Bus-tie req. of IMO/Class/ FMEA

3.05.20 Cross connection – Risk, managing risk

3.05.25 Configuration of switchboard and FMEA

3.06.00 DP Comparison

4.00.00 Chapter 4 – Hardware – DP system

4.01.00 Typical elements of all DP system

4.01.05 All DP system have the many components

4.01.10 DP Operator Station

4.01.15 DP Control Processors – (see Chapter 10)

4.01.20 Interconnection – overview

4.01.50 Lessons learnt from DP events

4.01.60 Change for Auto / Manual / IJS 

4.02.00 Independent joystick system (IJS)

4.02.05 Overview, rules and guidance – IJS

4.02.10 Power Supplies and redundancy philosophy

4.02.15 Location of controller stations

4.02.20 Exercise and Drills

4.02.25 Lessons learnt from DP events

4.04.00 Data recorder and Printer

5.00.00 Chapter 5 – Position References System

5.00.04 Common to all Position reference system

5.00.05 Different Principles – overview and UTM

5.00.10 Relative & Absolute – Fixed & Mobile

5.00.15 Considerations for selection of PRS for DP

5.00.20 Blocking PRS signals

5.00.25 PRS interaction and Calibration PRS

5.00.20 PRS lessons learnt from DP incidents

5.00.25 Fitting new PRS system

5.01.00 DGNSS

5.01.05 Overview

5.01.10 Advantages

5.01.15 disadvantages

5.01.20 Operational and Failure considerations

5.01.25 Lessons learnt from DP events

5.01.30 New development in last 5 year

5.01.40 Corrections for DGNSS

5.01.45 Fugro 9205

5.01.50 Fugro 9410

5.01.55 Veripos LD900

5.02.00 Laser

5.02.05 Overview

5.02.10 Advantages

5.02.15 disadvantages

5.02.20 Operational and Failure considerations

5.02.25 Lessons learnt from DP events

5.02.30 New development in last 5 year

5.02.40 Laser – SceneScan 

5.02.45 Overview

5.02.50 Advantages

5.02.55 disadvantages

5.02.60 Operational and Failure considerations

5.02.65 Lessons learnt from DP events

5.02.70 New development in last 5 year

5.02.80 Laser – CyScan

5.02.85 Laser – Fanbeam

5.02.90 Laser – Spot Track

5.03.00 Microwave

5.03.05 Overview

5.03.10 Advantages

5.03.15 disadvantages

5.03.20 Operational and Failure considerations

5.03.25 Lessons learnt from DP events

5.03.30 New development in last 5 year

5.03.35 Microwave – RadaScan

5.03.40 Microwave – Rada Scene

5.03.45 Microwave – Radius

5.03.50 Microwave – Artemis

5.04.00 Acoustic

5.04.05 Overview

5.04.10 Advantages

5.04.15 disadvantages

5.04.20 Operational and Failure considerations

5.04.25 Lessons learnt from DP events

5.04.30 New development in last 5 year

5.04.35 Riser angle

5.05.00 Taut wire

5.05.05 Overview

5.05.10 Advantages

5.05.15 disadvantages

5.05.20 Operational and Failure considerations

5.05.25 Lessons learnt from DP events

5.05.30 New development in last 5 year

5.06.00 Inertial Navigation Systems

5.06.05 Overview

5.06.10 Advantages

5.06.15 disadvantages

5.06.20 Operational and Failure considerations

5.06.25 Lessons learnt from DP events

5.06.30 New development in last 5 year

5.07.00 Range Guard

5.07.05 Overview

5.07.10 Advantages

5.07.15 disadvantages

5.07.20 Operational and Failure considerations

5.07.25 Lessons learnt from DP events

5.07.30 New development in last 5 year

5.08.00 Gangway sensor

5.08.05 Overview

5.08.10 Advantages

5.08.15 disadvantages

5.08.20 Operational and Failure considerations

5.08.25 Lessons learnt from DP events

5.08.30 New development in last 5 year

6.00.00 Chapter 6 – Sensors- Environmental

6.00.05 Overview DP systems needs enviro sensors

6.01.00 Gyro

6.01.05 Overview

6.01.10 Advantages

6.01.15 disadvantages

6.01.20 Operational and Failure considerations

6.01.25 Lessons learnt from DP events

6.01.30 New development in last 5 year

6.02.00 Wind Sensor

6.02.05 Overview

6.02.10 Advantages

6.02.15 disadvantages

6.02.20 Operational and Failure considerations

6.02.25 Lessons learnt from DP events

6.02.30 New development in last 5 year

6.03.00 MRU/VRU/VRS

6.03.05 Overview

6.03.10 Advantages

6.03.15 disadvantages

6.03.20 Operational and Failure considerations

6.03.25 Lessons learnt from DP events

6.03.30 New development in last 5 year

6.04.00 Tension sensor

6.04.05 Overview

6.04.10 Advantages

6.04.15 disadvantages

6.04.20 Operational and Failure considerations

6.04.25 Lessons learnt from DP events

6.04.30 New development in last 5 year

6.05.00 Current sensor

6.05.05 Overview

6.05.10 Advantages

6.05.15 disadvantages

6.05.20 Operational and Failure considerations

6.05.25 Lessons learnt from DP events

6.05.30 New development in last 5 year

6.06.00 Draft sensor

6.06.05 Overview

6.06.10 Advantages

6.06.15 disadvantages

6.06.20 Operational and Failure considerations

6.06.25 Lessons learnt from DP events

6.06.30 New developments in last 5 year

7.00.00 Chapter 7 – Thruster

7.01.00 Azimuth, Tunnel thrusters, Propellers                                      

7.01.05 Overview thrusters, advantage and disadvantage

7.01.10 Thruster allocation logic

7.01.15 Thruster power supplies

7.01.20 Thruster bias, Barring zone, Fixed modes

7.01.25 Thruster new developments in last 5 years

7.03.00 Thruster controls, backup and Failure modes                                                

7.03.05 Thruster controls and Emergency / Backup

7.03.05 Emergency stops

7.03.10 Thruster failure modes

7.03.15 Thruster bias modes after loss of generator

7.03.20 Thruster phase back, 

7.03.50 Thruster lesson learnt

8.00.00 Chapter 8 – Power System

8.00.01 Types of power systems

8.01.00 Generators

8.01.05 Constant RPM and Variable speed generators

8.01.05 Power factor and reactive loads

8.01.10 Frequency and Voltage control

8.02.00 Switchboards

8.02.05 DC supplies

8.02.10 AC supplies

8.02.15 Open / Closed Bus-tie req. of IMO/Class/ FMEA

8.02.20 DC Grids and variable speed generators

8.02.25 Cross connection – Risk, managing risk

8.02.30 Configuration of switchboard and FMEA

8.02.35 Short circuit testing

8.02.40 Breaker selective study

8.02.45 Breaker selective – Current based study

8.02.50 Breaker selective – Time based study

8.03.00 Power Management System

8.03.05 Power limits as per IMO 1580

8.03.10 Overview, general requirements, operating

8.03.15 Blackout prevention and Spinning Reserve

8.03.20 Loan dependent start and stopping

8.03.35 Load sharing and Load shedding

8.03.30 Loan balance study – Load analysis’s

8.03.35 Thermal imaging

8.03.40 Importance of cooling system

8.03.45 Failure modes and lesson learnt

8.03.50 Extra loads on switchboard with Industry Mission

8.03.55 Lessons Learnt (switchboard, PMS, UPS)

8.04.00 ESS – Energy storage system (Batteries) Hybrid

8.04.05 Overview

8.04.10 Risks, Safety and Monitoring

8.04.15 Integration with power management system

8.04.20 Peak shaving and harbour mode

8.04.25 Redundancy backup

8.04.30 Time and charge left in ESS for operation

8.04.35 Recharge at installation

8.05.00 UPS

8.05.05 UPS overview and redundancy 

8.05.10 220v to 24v

8.05.15 220v to 220v

9.00.00 Chapter 9 – Ship systems

9.01.00 Electrical Cabling and Communications

9.01.05 Digital interface

9.01.10 Serial interface

9.01.15 Analogue interface

9.02.00 Fuel systems                                                                                                                          

9.02.05 LNG

9.03.00 Lubrication System

9.04.00 Cooling systems

9.04.05 Fresh water

9.04.10 Salt sea

9.05.00 Compressed Air System                                                                                                          

9.06.00 HVAC

9.06.05 Ventilation system                                                                                                                                                                                                                                   

9.06.10 Air conditioning

9.07.00 Networks, Remote Access and Cyber Security

9.07.05 DP Network – overview & the risks, guidance

9.07.10 DP Network – Operational & Failure

9.07.15 Network – Lessons learnt from DP Net system

9.07.20 Network cross connections

9.07.25 Possible effects of remote access

10.00.00 Chapter 10 – DP Controller & Operator Software

10.01.00 DP Software and command displays

10.02.00 DP model, DP current

10.03.00 Position reference system interaction (50030)

10.04.00 Alarms

10.05.00 Alarm – CA

10.06.00 Heading and position feedback

10.07.00 UTM

11.00.00 Chapter 11 – Logical fault finding

11.01.00 Thruster system

11.02.00 Position reference system and Sensors

11.02.05 All position reference system

11.02.10 DGNSS

11.02.15 Laser

11.02.20 Microwave

11.02.25 HPR

11.03.00 DP Position holding

11.03.05 Lost of position

11.03.10 Unstable positioning

12.00.00 Chapter 12 – DP Vessel Operation   

12.01.00 Planning DP Operations

12.01.05 List of planning tasks

12.01.10 Information required from Charterer

12.01.15 Area of operations

12.01.20 Environment conditions

12.01.25 Corrections for DGNSS

12.02.00 Inside and outside safety Zones

12.02.05 Operating in open water

12.02.10 Possible effects of subsea operation on DP vessels.

12.02.15 SIMOPS – DP and non DP vessel, 

12.02.20 Operating inside 500 meter

12.02.25 Safe working distance

12.03.00 ASOG / CAMO / TAM / TAGOS

12.03.05 ASOG / CAMO

12.03.10 TAM –Lay out of Task Appropriate Mode

12.03.15 TAGOS 

12.03.20 DP Alert light system

12.04.00 Communications

12.05.00 DP Watch keeping procedures

12.05.05 DP Setup procedures

12.05.10 During a DP watch

13.00.00 Chapter 13 – Manning and Responsibility

13.01.00 IMCA 117 Manning

13.02.00 IMCA 182 Manning

13.03.00 Responsibility’s

13.04.00 Task specific – Industry Missions crew manning

14.00.00 Chapter 14 – Training and Drills

14.01.00 Onboard training

14.02.00 Emergency drill and procedures

14.02.05 DP Emergency Drills, IMCA guidelines

14.03.00 Proof of Competency and Competency assessments

14.04.00 DP Training and guidance for shore based staff

14.05.00 Shore based Operational staff

14.06.00 Shore based Technical staff

14.06.00 Task specific – Industry Missions crew training

14.07.00 Shore based Commercial Staff

14.08.00 Shore based DP Supervisors

14.09.00 Shore based Safety Captains

15.00.00 Chapter 15 – Incident and Investigations

15.01.00 Information required and investigation

15.01.10 Downloading log files

15.02.00 Lessons Learnt

15.02.10 Lessons learnt from incident reporting scheme

15.03.00 Incident Reporting – IMCA, MTS

15.03.05 IMCA incident reporting scheme

15.03.10 Nautical Institute incident reporting Scheme

15.03.15 MTS incident reporting Scheme

16.00.00 Chapter 16 – Documents – Ship

16.01.00 DP Operations and DP Equipment Manual

16.01.05 Company DP operation Manual & Procedures

16.01.10 Vessel Specific DP Manual & Procedures

16.01.15 System and Equipment Manuals

16.01.20 DP system maintenance Manual

16.02.00 Capability Plots and Foot print plots

16.02.05 DP Cap plots – Purpose, IMO / Class req.

16.02.10 DNV Capability Plots

16.02.15 Possible errors in Capability plots

16.02.20 Footprint Plots

16.03.00 Checklists and DP log

16.03.05 What checklist are required by IMO 1580

16.03.10 Purpose, overview of expectations / req.

16.03.15 What should checklist contain?

16.04.00 DP Risk Assessment

16.05.00 Management of Change Procedures

16.05.05 Overview of Management of Change (MoC)

16.05.10 What need to be in a Management of change

16.05.15 Lesson leaned for incident stopped by MoC

16.06.00 DP Emergency Procedures

16.06.05 What Emergency procedures are needed

17.00.00 Ch 17 – Industries Guidelines and Organisations

17.00.05 Regulatory update  in last 5 years and Planned

17.00.10 New or updated publications and Bulletins

17.01.00 IMO 

17.01.05 Introduction, overview of IMO DP documents

17.01.10 IMO 645 and 1580

17.01.15 IMO 738 and IMCA 117

17.01.20 IMO STCW Part B – DP training

17.02.00 Flag state, port state and Classification Society.

17.02.05 Flag State Introduction, purpose and highlights

17.02.10 Port State Introduction, purpose and highlights

17.02.15 Regulatory update  in last 5 years and Planned

17.03.00 IMCA Documents

17.03.05 Intro. Overview about IMCA and IMCA Publication

17.03.10 List of all IMCA Marine Documents

17.03.15 Contents of each IMCA Marine document

17.03.20 New and updated IMCA documents

17.04.00 MTS Documents available and what they contain

17.04.05 Introduction, overview of MTS documents

17.04.15 MTS tech ops

17.04.20 What is in each MTS documents

17.05.00 MSF – GOMO

17.05.05 Introduction, overview of MSF GOMO

17.05.10 Problems with GOMO

17.05.15 MSF – GOMO and IMCA 182

17.06.00 MASS

17.06.05 Maritime Autonomous Ship Systems (MASS)

17.06.10 Maritime Autonomous Ship Systems (MASS)

17.07.00 Nautical Institute

17.07.05 Overview of NI DP Standard and DP-TEGs

17.07.10 Current NI Standard

17.07.15 Changes to NI Standard last 12 months

17.07.20 NI DP courses – Overview

17.08.00 OCIMF – Oil Companies International Marine Forum

17.08.05 Overview of OCIMF and OCIMF documents

17.08.10  Offshore (OVMSA)

17.08.15 Offshore Vessel Inspection Database (OVID) 

17.08.20 DP-Failure-Mode-Effects-Analysis-Assurance

17.08.25 Dynamic-Positioning-Assurance-Framework

18.00.00 Ch 18 – Testing, Trials, FMEA, Annual, Audits

18.01.00 DP Annual Trials

18.01.05 IMO 1580, IMCA M190, Class and Flag State

18.01.10 Guidance, purpose, requirements, objectives

18.01.15 MTS and IMCA DP Practitioner Accreditation

18.02.00 FMEA and FMEA proving trial

18.02.05 IMO 1580, IMCA M190, Class and Flag State

18.02.10 FMEA Study and Gap analysis

18.02.15 Guidance, failure (single, common, hidden, etc)

18.02.20 FMEA trials – purpose, req. guidance, objectives

18.02.20 Redundancy concept, protective functions,

18.02.25 What should be demonstrated

18.03.00 FMEA 5 year proving trials

18.03.05 IMO 1580, IMCA M190, Class and Flag State

18.03.10 FMEA 5y trials – purpose, requirements, guidance.

18.03.15 What should be demonstrated

18.04.00 Field Arrival trials

18.04.05 IMO 1580, IMCA M103, Class, Flag State

18.04.10 What should be demonstrated

18.05.00 Charterers DP Audit and Assurance

18.06.00 Company DP Audit

18.07.00 OVID

18.08.00 FAT – Factory acceptance trials

19.00.00 Ch 19 – Planned Maintenance System and DP Spare

19.01.00 Planned Maintenance tasks

19.02.00 Remote access and lessons learnt

20.00.00 Ch 20 – Remote control and Auto. DP Vess

20.01.00 Remote control DP vessels

20.02.00 Autonomous DP vessels

21.00.00 Ch 21 – Industry Mission Specific Operations

21.01.05 All Industry missions

21.01.10 Mobilization and testing

21.01.15 3rd Party – emergency procedures and Alert lights

21.01.20 Redundancy if sharing Power, water, fuel, air

21.01.25 PRS blocking

21.01.30 Wind profile 

21.01.35 Stability and draft change

21.02.00 Accommodation

21.02.05 General description / Consideration

21.02.10 Reference System & Sensors 

21.02.15 Operational considerations & Planning

21.03.00 Autonomous Vessel and remote control vessel

21.03.05 General description / Consideration

21.03.10 Reference System & Sensors 

21.03.15 Operational considerations & Planning

21.04.00 Crane and A Frame operations

21.04.05 General description / Consideration

21.04.10 Reference System & Sensors 

21.04.15 Operational considerations & Planning

21.05.00 Dive Support Vessel

21.05.05 General description / Consideration

21.05.10 Reference System & Sensors 

21.05.15 Operational considerations & Planning

21.06.00 Dredging

21.06.05 General description / Consideration

21.06.10 Reference System & Sensors 

21.06.15 Operational considerations & Planning

21.07.00 Drilling

21.07.05 General description / Consideration

21.07.10 Reference System & Sensors 

21.07.15 Operational considerations & Planning

21.08.00 Drilling core sample

21.08.05 General description / Consideration

21.08.10 Reference System & Sensors 

21.08.15 Operational considerations & Planning

21.09.00 Float Over

21.09.05 General description / Consideration

21.09.10 Reference System & Sensors 

21.09.15 Operational considerations & Planning

21.10.00 FPSO – working other DP vessels and FPSO

21.10.05 General description / Consideration

21.10.10 Reference System & Sensors 

21.10.15 Operational considerations & Planning

21.11.00 FPSO Floating Production Storage and offloading

21.11.05 General description / Consideration

21.11.10 Reference System & Sensors 

21.11.15 Operational considerations & Planning

21.12.00 Gangway operation

21.12.05 General description / Consideration

21.12.10 Reference System & Sensors 

21.12.15 Operational considerations & Planning

21.13.00 Heavy lift

21.13.05 General description / Consideration

21.13.10 Reference System & Sensors 

21.13.15 Operational considerations & Planning

21.14.00 Heavy lift from DP vessels

21.14.05 General description / Consideration

21.14.10 Reference System & Sensors 

21.14.15 Operational considerations & Planning

21.15.00 Jack up (self elevating)

21.15.05 General description / Consideration

21.15.10 Reference System & Sensors 

21.15.15 Operational considerations & Planning

21.16.00 Passenger Vessels

21.16.05 General description / Consideration

21.16.10 Reference System & Sensors 

21.16.15 Operational considerations & Planning

21.17.00 Personal transfer by basket

21.17.05 General description / Consideration

21.17.10 Reference System & Sensors 

21.17.15 Operational considerations & Planning

21.18.00 Pipe lay / Cable lay

21.18.05 General description / Consideration

21.18.10 Reference System & Sensors 

21.18.15 Operational considerations & Planning

21.19.00 Pipe laying – discharge to a pipe layer

21.19.05 General description / Consideration

21.19.10 Reference System & Sensors 

21.19.15 Operational considerations & Planning

21.20.00 Rock Placement

21.20.05 General description / Consideration

21.20.10 Reference System & Sensors 

21.20.15 Operational considerations & Planning

21.21.00 ROV

21.21.05 General description / Consideration

21.21.10 Reference System & Sensors 

21.21.15 Operational considerations & Planning

21.22.00 Shuttle Tanker

21.22.05 General description / Consideration

21.22.10 Reference System & Sensors 

21.22.15 Operational considerations & Planning

21.23.00 Submarine rescue – DSRV

21.23.05 General description / Consideration

21.23.10 Reference System & Sensors 

21.23.15 Operational considerations & Planning

21.24.00 Supply Operation and Anchor handling

21.24.05 General description / Consideration

21.24.10 Reference System & Sensors 

21.24.15 Operational considerations & Planning

21.25.00 Trenching

21.25.05 General description / Consideration

21.25.10 Reference System & Sensors 

21.25.15 Operational considerations & Planning

21.26.00 Well stimulation

21.26.05 General description / Consideration

21.26.10 Reference System & Sensors 

21.26.15 Operational considerations & Planning

21.27.00 Wind Farm walk to work – SOV

21.27.05 General description / Consideration

21.27.10 Reference System & Sensors 

21.27.15 Operational considerations & Planning

22.00.00 Chapter 22 – Practical exercise onboard

22.00.00 Practical exercises

22.00.10 Testing position reference offsets

22.00.15 Testing WCF – Worst case failure

22.00.20 Review power avaible after loss of a generator

22.00.25 Power usage with and without thruster bias

22.00.25 General description – Loss of ready signal

22.01.00 DP Drills as per IMCA 

22.01.05 DP Drills matrix