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Mainprize Offshore WFSV at Seawork

Tuesday, 13th June 2017

The fruit of a ground-breaking WFSV build partnership between Aluminium Marine Consultants (AMC) and Mainprize Offshore Ltd will be on the quayside (berth VB32) at Seawork International this year.

With unique features such as a dedicated three-point mooring system, fuel transfer system and a draft of only 1.4m, the 23m WFSV MO4 has been designed and built to operate in shallow water conditions and take windfarm service vessels to the next level.

"We chose AMC because of its flexibility and the company's attention to detail and workmanship, coupled with its willingness to meet the tight deadlines the client required," said Bob Mainprize, manging director, Mainprize Offshore Ltd.
He pointed out that from the keel being laid up to the handover, the build time for the MO4 has been less than nine months. This has meant a build time saving of almost four months reducing build finance cost and risk.

"This means that MO4 will start to pay back four months earlier than any other builder can offer," Mr Mainprize added.

MO4 is fitted with twin Caterpillar C32 diesel engines driving fixed pitch propellers that gives the vessel a service speed of 26 knots, even when fully loaded.

The vessel has been designed with huge amounts of deck space both fore and aft and has been designed for shallow water work with a 1.4m draft. It can carry up to 30,000 litres of fuel or 20,000 litres of water and has provision for 4 x 20' containers and 30t of deck cargo.

Mainprize's MO4 will be put to work straight away in the German windfarm sector on an eight-year contract with Deutsche Windtechnik on the Nordergründe windfarm. There it will perform crew transfer, cargo and equipment duties out of the port of Hooksiel.

Mainprize has built up a four-and-a-half-year relationship with Deutsche Windtechnik working on Vattenfall's DanTysk and Butendiek windfarms, where it has more than upheld its proven track record in achieving reduced weather down time and almost zero hours' maintenance and breakdown rates, resulting in increased cost efficiencies for the windfarm operator.


Quote from Mr Bob Mainprize, Mainprize Offshore Ltd


Mainprize Offshore Ltd are proud to present the MO4 at Seawork's 2017, This is the first time Mainprize Offshore Ltd have been able to present one of our vessels at seaworks.


In fact the MO4 is a vessel of many firsts, this is due to the foresight and vision of Mr C Richardsen CEO of deutsche wind technik. With a very testing requirement Mainprize Offshore Ltd were awarded the contract against some very strong competition to design, build and operate the vessel. The MO4 is unique in many ways been 23m LOA and 9.6m beam the vessel has a huge working deck area of over 120m2 this is 30 to 40% greater than some much larger vessels, this continues with a fuel capacity of 30,000L, water capacity of 20,000L, cargo – payload of 30T, planned 3 point anchor mooring, inbuilt sonar system. The vessel fitted with twin Cat C32's, ZF 3055 Gearboxes and a Clements stern gear package, the MO4 also has an unconfirmed bollard push of 15T and a unique operational draft of 1.4 meters,. This gives our client a much greater operational window in the tide restricted port. Several companies were involved in the designed including Mainprize Offshore Ltd, Walker Marine Design Ltd and Offshore Ship Design with the end result been a truly astonishing vessel.


Built at AMC - Aluminium Marine Consultants located on the Isle of White and delivered in less than 8 months from order to the highest standards we look forward to proving her credentials. We expect that the MO4 will be of interest to clients based and operating from shallow ports due to the power, bollard push, payload capacities, multi-use, shallow operational draft and operational flexibility. We look forward to welcoming visitors on to the MO4


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