Navantia and its subcontractors have successfully completed the tropicalisation of the Royal Norwegian Navy’s second Fridjof Nansen-class (F310) frigate, HNoMS F-311 Roald Amundsen.

The frigate was designed and constructed by Navantia between 2000 and 2011.

Contract works associated with the tropicalisation was signed in July last year.

The tropicalisation works enhance the F-311 frigate’s cooling capacity and allow it to navigate in much warmer water temperatures than the regular operational scenarios.

Norwegian commander Espen Holtar said: “During the project, Navantia has shown themselves as a relevant and trustworthy supplier with knowledge and ability to deliver in accordance to original and new requirements in the project”.

“It is worth mentioning that the NDMA will be using this project as a model for future projects on the Nansen-class frigates.”

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Navantia noted that the modification took place from January to June this year.

It included the replacement of three refrigeration plants, as well as the upgrade of the air-cooling equipment in the engine rooms.

New equipment installed includes pipes, electrical panels, conduits, and wiring.

Navantia Norway liaison engineer and works manager Miguel Diaz said: “We have been scored 9.5 out of ten by the NDMA, for the fourth year in a row, and this has been possible thanks to a team of extraordinary professionals who have performed their work with the highest level of competence, qualification and ability.”

Norwegian Defence Material Agency (NDMA) congratulated the company and its subcontractors and praised their abilities for completing the work during the pandemic situation, following strict protocols.

Navantia built five Nansen-class anti-submarine warfare frigates for the Norwegian Navy.

These vessels are HNoMS Fridtjof Nansen (F 310), Roald Amundsen (F 311), Otto Sverdrup (F 312), Helge Ingstad (F 313), and Thor Heyerdahl (F 314).