upgraded västergötland-class submarine

  1. Grey Havoc

    Södermanland-class submarine upgrade program (2022)

    https://www.navalnews.com/naval-news/2022/09/saab-receives-orders-from-sweden-for-submarine-upgrades/ HSwMS Östergötland isn't mentioned in the article, but presumably it will receive the same upgrade as HSwMS Södermanland in due course.
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