Cold Waters Nuclear Submarine game/sim website by PMC.
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HOWTO use torpedo tubes properly to fire torpedoes or decoys (MOSS?).
When you fire a torpedo or a decoy the boat speed must be 20 knots or below otherwise it causes damage to torpedo tubes.
I'm not 100% sure but I believe the damage is total, it just breaks and then you cannot use that torpedo tube for the remaining of the patrol, not just the current engagement, your repair crews cannot fix them while at sea. Someone correct me if I'm wrong, its been months since I accidentally launched a torp at high speeds hehe.