Otto orders PX121 PSV quartet at Wuchang

AUGUST 25, 2014 — Ulstein Design & Solutions has received design and equipment contract from Wuchang Shipbuilding Industry Co., Ltd, China, covering four PX121 type platform supply vessels ordered by Singapore based Otto Offshore Ltd. Deliveries are scheduled for 2016 and the contract includes an option for four more vessels.

Measuring 83.4 m in length and with a beam of 18 m, the PSVs have a cargo deck of 840 sq.m and a load capacity of 4,000 tonnes (dwt).

Capable of supporting offshore activities further from shore and in deeper waters, the vessels can carry flexible loads. In addition to tanks for various contents such as oil, water, and drilling fluids, they have four stainless steel tanks for flammable liquids or corrosive chemicals (LFL tanks).

The vessels are certified by DNV and carry the Clean Design notation.

Each ship has a maximum speed of approximately 14.5 knots and accommodates 30 people.

The ships have the Ulstein X-Bow hull line design, which is efficient on all drafts, and eliminates slamming in head seas and reduces bow impact, noise and vibration. This leads to better performance and increased operability, increased crew comfort and safety and reduced fuel consumption. Each ship will be equipped with dynamic positioning system Class II and meets the requirements of Comfort Class.

"We are happy to welcome Wuchang Shipbuilding and Otto Offshore as new customers to Ulstein. The PX121 vessels boast a performance you would normally expect from a larger PSV. Being able to do this at a medium-sized PSV cost, with reduced emissions and fuel consumption, the ship owner gets a favourable combination of two market areas," says Sigurd Viseth, managing director, Ulstein Design & Solutions.

"We are very pleased to partner with Ulstein and Wuchang Shipbuilding for our latest newbuildings," comments Garrick Stanley, Group CEO, Otto Marine. "Ulstein was chosen as the designer for the latest additions to the fleet after careful analysis of the market and our clients' requirements leading into the future. We look forward to welcoming the four new Ulstein vessels into our fleet in early 2016 to be deployed around the world to the Oil Majors and customers we support." The contract with Ulstein includes the deliveries of design, engineering and main equipment.

An extensive delivery from Ulstein Power & Control includes integrated control systems, bridge (radio, navigation), switchboard, diesel electric propulsion and frequency converters, and communication systems.

The vessels will be prepared for offshore crane and mezzanine deck for ROV.

The design contract from Wuchang Shipbuilding and Otto Offshore brings the total number of PX121 PSV designs sold to thirty.