The new Wärtsilä LMT-3510 thruster provides more available force and excellent bollard pull performance, which are essential factors in offshore dynamic positioning applications.
Wärtsilä is continuously improving its thruster portfolio in response to market demands, classification requirements, and feedback from thruster products in operation. In the coming years Wärtsilä will renew its entire thruster portfolio. The Wärtsilä LMT 3510 thruster is the first result of this extensive development programme that uses new insights and the latest technical and hydrodynamical knowledge. The main objectives for the LMT-3510, as compared to the already existing LMT-3500, were:
1. To improve the hydrodynamic efficiency of the thruster,
2. Incorporate latest knowledge with regard to the propulsion driveline and structural strength of the thruster
The new thruster has found a broad market acceptance, as is manifested by the fact that, in a limited time... [More]
Ulstein Verft delivered ‘Blue Thunder’, the fourth of six medium-sized platform supply vessels of the PX121 design from ULSTEIN® mid of March to Blue Ship Invest. Owned by Blue Ship Invest, a wholly-owned company in Ulstein Group, the platform supply vessel (PSV) is commercially and technically under the management of Atlantic Offshore. ‘Blue Thunder’ will enter a 4-month contract with Statoil, with 4 monthly options. “We have received good feedback from the operators on her three sister vessels, and we are very pleased that this ship also enters into a contract for work in the North Sea,” says Gunvor Ulstein, CEO of Ulstein Group and Managing Director of Ulstein Shipping, adding that the remaining two vessels will be delivered later this year and all six vessels are for sale.In the North Sea, PSVs of the PX121 designs are considered medium-sized. The vessels with this design have an optimal combination of fuel-efficiency and deadweight. They hav... [More]
The ARC 100 HD increases ice management and pollution control capability
As a result of the increased tanker traffic in the Gulf of Finland and an innovation campaign Aker Arctic has developed a revolutionary new type of vessel, an asymmetric ice-breaker. This oblique icebreaker takes further the already well known "double acting" stern working icebreaking method by being able to break an ice channel of 50 m width by proceeding with the side ahead. In addition to icebreaking, the vessel is excellent also during the ice season in oil spill combat operations, in escort and emergency towing, fire fighting and ecological monitoring. Thus the vessel by its performance replaces several traditional vessels in a compact, cost-efficient high performance unit.The vessel is a compact size icebreaking vessel provided with diesel-electric propulsion with three azimuthing thruster propellers. The propulsion solution and the special hull form allow the vessel to operate efficiently ahead, astern and ... [More]
DP systems have become increasingly complex in their configurations and in their operation aince they were introduced some 50 years ago; sensors have become more sophisticated, there are more of them and the same level of increased complexity applies to the electrical and propulsion systems. GE Power Conversion decided to simplify things and save fuel on occasion, with their new DP control station.The computer control at the heart of a ship’s positioning system has also become more sophisticated, but the basic principle of DP remains the same: to hold position with a computer system that takes signals from a range of sensors to sense environment, heading, position and attitude and then issues commands to thrusters and propellers. Overall, it is in charge of the complex processes of maintaining a ship on station, a process that needs a high level of system automation so that a single operator can manage the vessel.
New DP Control Station: Image credit GE Power Conversion