The New Zealand Ministry of Defence has ordered a MAN 175D engine retrofit aboard its newly purchased ship, the ‘Edda Fonn’, an advanced, flexible 85-metre vessel used for inspection, maintenance, survey and light construction assignments.
The new engine will join the existing MAN 12V175D engine aboard the vessel that former owner, Østensjø Rederi – the Norwegian shipping line, itself retrofitted to the Edda Fonn in 2016. After the official announcement of the acquisition in August 2018, MAN Energy Solutions committed to completing the retrofit in order for Edda Fonn to arrive in New Zealand by May 2019.
Lex Nijsen – Vice President, Head of Four-Stroke Marine at MAN Energy Solutions – said: “It’s very satisfying to see the growing number of references that the MAN 175D is gathering, and especially in the demanding naval segment. Since the installation of the Edda Fonn’s first MAN 175D, this dynamic engine has proven itself over a broad range of operating conditions – from the North Sea to the Mediterranean – with over 10,000 hours of operation by the end of 2018.”
MAN Energy Solutions reports that Østensjø Rederi’s positive experience with the performance of the existing 175D engine – both at extended low-load and rated-power operation – led them to recommend the Ministry of Defence to retrofit the second MAN 12V175D generator set.
The company states that the MAN 175D engine offers the Edda Fonn a higher level of reliability and availability, drastically reduces maintenance time, and significantly reduces emissions by considerably optimising fuel consumption and allowing a smooth and effortless upgrade to IMO Tier III requirements.
The latest retrofit involves the replacement of the existing 16-cylinder engine with an MAN 12V175D-MEL type, exactly matching the original power of 1,920 kW, and a new ‘IMO Tier III ready’ exhaust-piping layout specifically designed for a quick integration of the compact MAN SCR exhaust after-treatment system.
Edda Fonn will be delivered to New Zealand in May 2019 and will undertake further modifications and introduction into service activities. The ship will be commissioned as HMNZS Manawanui, which is Maori for ‘big heart’ or ‘steadfast’, before she enters service with the Royal New Zealand Navy. In doing so, she will join the significant number of MAN engines already in service in the Royal New Zealand Navy fleet.