Despite the fact that the frigate Helge Ingstad was raised and set afloat after four months underwater, it still has a long way to go and needs massive investments. In fact, the cost of repairing the frigate will be more than NOK 12 billion ($1.37 billion), which is three times more the original cost.
The total costs of the Helge Ingstad’s replacement have not been estimated yet, but the Norwegian defence department believes that ordering several ships at once will be much cheaper that...
https://safety4sea.com/cost-to-repair-frigate-helge-ingstad-could-be-more-than-1-3-billion/