[IonImplantGuru]

Even the range hood used only PKP charged with CO2.

Wasn't that 'PPK' (vice ), aka 'Purple K'? Of course my mind (what's left of it, that is; CRS and all that) has to go back 40 years to my last boat. Stuff may have changed since then.

[Doohickey]

I’m sure it was PKP (Purple K Powder) - Potassium Bicarbonate with some sodium bicarbonate and other stuff thrown in.

[cva66snipe]

Halon was new in the late 70's. They put a system in one of our Mains. The one that was Engineering Second Con I think. Like a poster said you had to deliberately activate it till it emptied out. You you had enough time to reach the escape trunk though. Most Mains's kept OBA's in the booth as well. PKP was a last result to use on anything you ever wished to use again namely electronics etc as it was corrosive. At least that's what I think I remember it's been 28 years for me.

You likely missed the HI-CAPS also. One of the greatest tools invented used in onboard firefighting on carriers. The flight-deck and Hanger Deck had a built in sprinkler system. 12 stations were put up and the tanks manually filled with AFFF {Aqueous Film Forming Foam} which was better than the older {plasma?} foam and better re-flash protection. This came after the three Forestall era carrier fires. You hit the switch and the deck was covered in second.

The downside was a few drunks just couldn't resist the temptation to see what that switch did. It was a mess and we had to clean it up at least once because of that. Only the station manually lit off would be triggered though. They found them but thankfully never found the above deck Emergency Shut Downs for the mains. I'll not say where they are located :>}