Just a question for sub folks.
Has anyone considered Halon dispensers, like the M1 Abrams have?
Halon, or any other fire suppression system would be unworkable on a boat. There’s just too much stuff crammed inside for any kind of centralized system. You have to either stop a fire fast with a portable extinguisher or get at it with a fire hose.
And, BTW, any type of chemically based extinguishing agent requires a massive cleanup effort, especially on affected electrical components (of which there are many).