The first Gotland Class submarine are back in her right element - beneath the surface.
During the last few months, the submarine Gotland has completed the first part of the sea-trials after a substantial upgrade program that started in late 2015.
The sea-trials have shown that the submarine is back as a state-of-the-art AIP-submarine. Many new systems are developed for the new A26 type submarines.
This enables an early integration of modern technology and you might describe it as a submarine with A26 technology disguised into a Gotland Class boat.
The upgrade program will cater for the submarines to remain in service through 2030, and beyond.
The sea-trials will continue throughout the spring/early summer.