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MAN 175D powers up the "big heart" of Royal New Zealand Navy's fleet

July 17, 2019

In 2016 Edda Fonn, a research and survey vessel from Norwegian operator Østensjø, became the first ship operating a MAN 175D engine at sea.

When the Royal New Zealand Navy selected Edda Fonn as their new diving and hydrographic vessel, the engine service records and crew's feedback strongly supported the decision to include the installation of a second MAN 175 in the ship conversion. This was awarded to Orskov shipyard, located just few kilometers away from the MAN 175D production and testing facility in Frederikshavn (Denmark).

MAN Energy Solutions worked side by side with the shipyard to achieve a smooth integration in the existing engine room. After about 50 days of intense activity, Edda Fonn was ready to take to the sea again, in a new Navy gray livery.

The 52-day voyage to New Zealand covered about 12,000 nautical miles through the Atlantic and Pacific oceans, predominantly on MAN 175D engines, proving once again their seaworthiness and fuel efficiency.

On 12th May, Edda Fonn arrived in Auckland and started final preparations to be handed over to the Royal New Zealand Navy, under the name of HMNZS Manawanui, Maori for "big heart" and "steadfast".

Take a look at the installation in the shipyard at

and the 360° tour of the vessel and engine room after arrival in New Zealand at