HSwMS Gotland starts sea trials at Saab shipyard in Karlskrona

On Friday October 19 His Swedishs Majesty Ship (HSwMS) Gotland started its sea trials at the Saab shipyard in Karlskrona, after a comprehensive Mid-Life Upgrade (MLU) to ensure its operational service to Sweden beyond 2025.

The Mid-Life Upgrade program of the Swedish Gotland class submarines is progressing in parallel to the Mid-Life Upgrade program of the Dutch Walrus class submarines which was started in 2015. The first upgraded Walrus class submarine is currently fully operational again.

HSwMS Gotland is the first of two submarines being upgraded with the mid-life modifications, which consist of upgrades of onboard systems and technology, sustaining the submarine’s operational capability to meet future naval challenges. “The sea trials mark an important phase in the MLU project. This is the first time the crew will be able to operate the new systems in the true environment. After extensive training in the land based training facility, they will now be able to see the true potential of their submarine”, says Gunnar Wieslander, Senior Vice President, head of business area Kockums at Saab.

The upgrade process entails many important systems, such as the Stirling Air

Independent Propulsion (AIP) for longer duration underwater and the combat system. Even the traditional optical periscope is replaced with a new optronic mast for enhanced surveillance. The technically challenging upgrade demonstrates the state-of-the-art skills and capabilities of Saab Kockums. With respect to the SAAB/DAMEN partnership for replacing the aging Dutch Walrus class submarines, Saab Kockums proves itself once more being a highly skilled, experienced and reliable partner.

Sea trials commence of upgraded Gotland submarine
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