Air Independent Propulsion system based on the Stirling engine that allows submarines to operate underwater without needing to snorkel for air intake. This system was installed during the modernization of HMS Halland.
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19 Dec 2025
DEFENCE WIKI / WEAPON SYSTEM
Air Independent Propulsion system based on the Stirling engine that allows submarines to operate underwater without needing to snorkel for air intake. This system was installed during the modernization of HMS Halland.