DISCOVER Magazine #6

Introducing OSD-IMT – your design expertise partner

Published in category: Offshore Wind
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Lodewijk van Os Managing Director OSD-IMTLodewijk van Os
Managing Director
OSD-IMT

Lodewijk van Os is the new Managing Director of newbuild design specialist OSD-IMT, formerly Offshore Ship Designers, the well-known consultancy, naval architecture and marine engineering services group. He outlines the reasons for introducing a single brand name and some of the exciting new designs of OSD-IMT.

In 2001 Lodewijk began his career as a naval architect for the offshore design team at Damen Shipyards Group, which subsequently acquired Offshore Ship Designers (OSD) in 2016. He explains: “OSD is based in the Netherlands and Singapore and it also had a UK branch, IMT. Both OSD and IMT are well known and respected in their markets. They were already working as a group, but I felt it made sense to leverage the strength of their well-respected reputations and align the companies in a single brand name with a new corporate identity.”

30 designers worldwide

OSD IMT logoOSD-IMT’s bespoke designs can be built at any shipyard in the world, including Damen shipyards. The company has 30 designers globally. The expert team provides a range of consultancy, naval architecture and marine engineering services including concept FEED studies, vessel refit and conversion, structural and stability investigations.

OSD-IMT will continue to specialise in independent, newbuild design and basic engineering for a wide range of ship types including tugs, workboats, vessels for the offshore and renewables sectors, passenger transport, aquaculture, fishing and general cargo markets.

Ice Class Series

Recently the company launched new designs for a series of Ice Class vessels. OSD-IMT developed this series following extensive experience it gained with the development of the shallow draught, anchor-handling tug supply vessels Arctic and Antarctic for Ark Shipping. These vessels have a Bureau Veritas 1A Ice Class Notation, and are fully equipped to operate in the challenging and extreme conditions of the Caspian Sea, where ice formation of around 80 centimetres during the winter period is not exceptional.

The propulsion plant of the vessels can be adapted to suit the operational profile. Options include installation of controllable pitch or fixed pitch propellers, with or without nozzle, driven by a diesel direct, hybrid or full diesel electric power plant. Podded propellers are also possible. Optimal performance can be achieved in various conditions such as maximum bollard pull, higher speed transfer duties, slow speed duties for ice management or stand-by duties, Lodewijk says.

The designs are available for vessels of three different lengths – 50, 65 and 80 metres – with a bollard pull ranging from 45 up to 70 tonnes.

New Riserless Light Well Intervention Vessel

Another example of a new design ‘hot off the press’ is OSD-IMT’s 140 LOA, Riserless Light Well Intervention Vessel for servicing wells and plug & abandonment services. “We have quite some interest in this design, particularly given the amount of decommissioning coming up in the next few years.”

The company is also addressing the booming offshore wind market and has designed a new walk to work vessel and a series of infield maintenance vessels.

Next generation of Research Vessels

Additionally, OSD-IMT has launched a new generation of research vessels, which will incorporate the latest developments in survey, electronic and mapping equipment. A recent example of a tailor-made, research vessel is one delivered to the Taiwanese Oceanographic Research Institute (TORI). Equipment includes an ROV capable of operating at depths of up to 3,000 metres, a vibro core sampler able to work in waters of 600 metres deep, and stern and side ‘A’ frames. In addition, the vessel is fitted with containerised seismic survey equipment. As the vessel needed to be capable of moving sideways at a speed of 3 knots, twin, electrically-driven azimuth propulsion units were fitted aft, and two tunnel thrusters forward.

The avoidance of bubble sweep-down to the bottom of the vessel into areas where sensitive sonar and survey equipment are fitted is another consideration. To avoid bubbles a gondola was fitted with its lower surface some 120 centimetres below the hull.

Greener vessels

Lodewijk says the company sees good prospects for growth in the future. One sector OSD-IMT is keeping a keen eye on is the Asian tug market. He comments: “A lot of European shipbuilders have chosen standard designs which reflect the globally accepted standards for tugs but there are always regional preferences. I believe that OSD-IMT has a nice role to play when it comes to these regional variations. We can offer a tailored design which can be built in any yard, wherever the customers choose.”

Patrol boats are another target market and greener vessels, he adds.

We have to be able to provide hybrid designs; our clients are asking for vessels that reduce emissions and we have to be able to respond.

Lodewijk emphasises: “We aim to be our customer’s design expertise partner. Ultimately, we have a good global spread and are close to the main shipping markets and our clients. OSD-IMT has a broad portfolio of bespoke and standard designs and a strong engineering base. We offer an efficient, quick response and believe we provide our customers with value for money.”

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