IMCA Publishes New Guidelines

Wednesday, July 20, 2011

‘Guidance for developing and conducting annual DP trial programs for DP vessels’ (IMCA M 190) has been published by the International Marine Contractors Association (IMCA) to describe the development, conduct and management of annual dynamically positioned (DP) trial programs for all types of vessels equipped with DP systems meeting the requirements of International Maritime Organization (IMO) equipment classes 1, 2 or 3.

Sister publication, IMCA M 191 ‘Guidelines for annual DP trials for DP mobile offshore drilling units’, sets out a program of continuous trials throughout the year. This guidance will also be applicable to mobile offshore drilling units (MODUs).

In the 1980s, DP systems onboard vessels were often tested many times during the year and the time required for this frequent and repetitious testing was costly and inconvenient for both vessel owners and their clients. In addition, the frequent testing increased the risk of equipment damage.

In 1991, vessel owner representatives met oil company and government representatives to discuss and rationalise the auditing and testing of dynamically positioned vessels. This resulted in the development of DPVOA[i] guideline 112 UKOOA Part 2 – ‘Guidelines for auditing vessels with dynamic positioning systems’, which was published in 1993.  The rationalisation process continued and was enhanced with the production of IMO Maritime Safety Committee (MSC) Circular 645 (IMO MSC/Circ. 645) which was adopted in 1994. This IMO circular requires annual testing of all important systems and components of a DP system to ensure that it is maintained in good working order and to document the vessel’s ability to keep position after single failures associated with the assigned equipment class.

Since then, the concept of an annual DP trial supplemented by much shorter field arrival trials has been recommended by IMCA as a means of demonstrating that the vessel is fit to carry out DP operations appropriate to her DP equipment class.

In 1997 IMCA produced IMCA M 139 ‘Standard report for DP vessels annual trials’. This template has been widely accepted and is used with few modifications by the vast majority of vessel operators who choose to adopt IMCA guidance. IMCA M 139 has been updated to reflect the guidance in the new document.

Annual DP trials are only one part of the overall process used by clients to audit and accept DP vessels for various scopes of work and used by vessel owners/operators as part of their vessel assurance and management. Guidance on the overall process is described in 112 UKOOA Part 2.

All of the major classification societies, as well as IMO, have requirements for annual surveys or tests of the DP system; however, guidance as to the specific content of such surveys varies in its detail.

Maritime Reporter March 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Obangame Express 2015 Concludes in the Gulf of Guinea

Maritime forces from Gulf of Guinea nations, Europe, South America, and the United States and several regional and international organizations concluded the multinational maritime exercise,

Scandlines Ferry Back in Service by End June

The damaged Scandlines ferry M/V Prinsesse Benedikte is being repaired at the Polish shipyard Remontowa and is expected to be ready before the end of June 2015.

Greece Will Sell Piraeus Port Stake in Weeks

The Greek government will sell its majority stake in the port of Piraeus within weeks, the country's deputy prime minister told China's official Xinhua news agency,

Technology

US Navy to Roll out Underwater Spy Satellites

The robotic series that remade crusade in skies will shortly extend to a low sea, with underwater view “satellites,” drone-launching pods on a sea building and unmanned ships sport submarines,

India May Add Japanese Soryu-Class Submarines to its Fleet

India is reportedly considering a project to incorporate six Japanese Soryu-class diesel-electric submarines into its fleet, says The Japan Times.   The Defense

Austal Graduates 48 4-Yr Apprentices

Austal USA combined two classes to graduate a total of 48 members of Austal’s cutting-edge four-year apprenticeship program yesterday at a formal ceremony held at the Arthur R.

Offshore

China Unveils Action Plan on Maritime Silk Road

China has unveiled the principles, framework, and cooperation priorities and mechanisms in its Maritime Silk Road initiative in a bid to enhance regional connectivity

JV Wins $2bln Freeport LNG Contract in US

A joint venture (JV) between CB&I, Chiyoda International and Zachry Industrial has won a contract worth over $2bn from FLNG Liquefaction 3 for a liquefied natural

Feds Delay LNG’s Port Ambrose Application

The US Coast Guard and the US Maritime Administration (MARAD) have temporarily suspended their review of the proposed Port Ambrose deep-water LNG import terminal.

Education/Training

Austal Graduates 48 4-Yr Apprentices

Austal USA combined two classes to graduate a total of 48 members of Austal’s cutting-edge four-year apprenticeship program yesterday at a formal ceremony held at the Arthur R.

SimCity

Building Capacity, as Deadline for Trained Crews Nears   “You see that ship. That’s our ship,” says Karsten Saevik, as he directs our attention to the virtual

Maritime Training Five Years from Now: A Look Ahead

For anyone involved in maritime training, now is an incredibly exciting time full of opportunity. More than ever before, there are new advanced techniques and technologies

Energy

USA Urged Not to Delay Arctic Drilling

The U.S. should immediately begin a push to exploit its enormous trove of oil in the Arctic waters off of Alaska, or risk a renewed reliance on imported oil in the future, reports AP.

Feds Delay LNG’s Port Ambrose Application

The US Coast Guard and the US Maritime Administration (MARAD) have temporarily suspended their review of the proposed Port Ambrose deep-water LNG import terminal.

Austal Graduates 48 4-Yr Apprentices

Austal USA combined two classes to graduate a total of 48 members of Austal’s cutting-edge four-year apprenticeship program yesterday at a formal ceremony held at the Arthur R.

Salvage

Smoke: Cruise Ship Evacuates Passengers

A number of passengers and crew members were evacuated after smoke was spotted billowing from the front section of Carnival Liberty cruise ship docked in the Dutch Caribbean nation of St Maarten.

Salvage, Wreck Removal Beset with Chronic Problems

The basic nature of maritime casualties, salvage and wreck removal has evolved rapidly over the last few years. Ships and offshore constructions have become more technologically elaborate,

EALs & Oil Spill Remediation

EALs & Oil Spill Remediation: The Effects of EALs on Oil Spill and Discharge Reporting and Remediation In the wake of increased environmental scrutiny and potentially expanding liability issues,

Marine Equipment

Scandlines Ferry Back in Service by End June

The damaged Scandlines ferry M/V Prinsesse Benedikte is being repaired at the Polish shipyard Remontowa and is expected to be ready before the end of June 2015.

US Navy to Roll out Underwater Spy Satellites

The robotic series that remade crusade in skies will shortly extend to a low sea, with underwater view “satellites,” drone-launching pods on a sea building and unmanned ships sport submarines,

Viking Bags Charter Deal for AHTS Brage Viking

Viking Supply Ships has entered into a contract with an Oil major for the charter of “Brage Viking” commencing 1stof April 2015. The duration is for 2 years and 8 months firm,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Navigation Offshore Oil Pipelines Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2412 sec (4 req/sec)