The latest news, insights
and ideas.

ONA were recently awarded a tow consulting scope on the Woodside Greater Enfield Project on behalf of TechnipFMC. The scope comprised tow planning, procedures, stability, and tow load path engineering and verification of multiple voyages. Each tow formed part of the mobilisation of equipment and permanent materials from Singapore. The work was completed by our […]

ONA has been awarded another specialised marine scope covering heavy lift and marine transportation of high value project equipment for the Rio Tinto Amrun Project in Weipa, QLD. The services provided will be managed from our Perth office and include marine lift and engineering review with execution oversight in Henderson, WA and in Weipa, QLD. […]

ONA recently completed a mooring design and assessment for an offshore marine terminal in Papua New Guinea. The work included detailed assessments of environmental and operational factors to supplement the design work. The modelling was completed using OPTIMOOR and our in-house database of vessel and hydrodynamic parameters. ONA has strong experience working with designers and […]

The following Insight from Mike Priestly, Senior Consultant, explores the effect of large windages on the nature of position keeping two of the largest floating facilities ever built: Last year, two of the largest facilities in each class were installed in the Northern waters of Australia, the Inpex Ichthys CPF “Ichthys Explorer” and Shell FLNG […]

Towards the end of 2017, ONA consultant engineer Jordan Rayson attended the OrcaFlex user group meeting to learn about the updates to come in OrcaFlex, as well as attending the OrcaFlex Introduction to Python Workshop. Jordan said, “I took the opportunity to take this course to push my knowledge of OrcaFlex and start on my […]

The following Insight from Mike Priestly, Senior Consultant, provides incident commentary on the Spirit of Tasmania II parting of moorings: Background On 13 January 2016 The Spirit of Tasmania II broke from her moorings while loading vehicles and passengers at Station Pier Melbourne. The ATSB recently published a report of its investigation (link). Purpose ONA […]

The following Insight from Mike Priestly, Senior Consultant, explores the use of the JH143 in Australia when conducting risk assessments of shipyards: Historical Context Australia has a long and proud history of shipping and boating around Australia’s enormous coastline. Many of us grew up near marine infrastructure such as boatsheds and slipways. Some had nice […]

ONA welcomes requests from engineering students to apply for bursaries to undertake final year projects that align with their studies and ONA’s areas of expertise. We are particularly interested in students in 2018 undertaking modelling and docking studies (AMC CUF Floating Dock) of the new NAVAL GROUP (formerly DCNS) Shortfin Barracuda design. See our web […]

The following Insight from Jordan Rayson, Offshore Engineer, explores the integrity assessment of gravity anchors: Gravity-based anchors remain an acceptable anchoring method in mooring systems around the world. There are two prominent types of gravity-based anchors: steel and concrete. Both rely on keying into the seafloor and the use of ballast or overburden to enhance […]

The ONA team recently completed a mooring feasibility study of berthing operations at an iron ore loading facility in Western Australia. The study included a detailed assessment of environmental factors and reviewing the most recent mooring procedures for compliance with good marine berthing practices. A mooring analysis was undertaken using OPTIMOOR to assess imparted loads […]

ONA is celebrating 10 years of success as an established provider of marine engineering services to the maritime industries. Thanks to all the clients who have supported us on our journey so far – we look forward to working with you for the next 10 years and beyond. Watch our anniversary video.