Night hicker:

You are right, the "foam used is AFFF or aqueous film forming foam) Its like a bubble bath for an aircraft, and like a bubble bath if you don't like the bubble on you whip it off. It has two(2) actions smother and cool. It is despernced by a special truck that mixes the raw foam with water. I am sorry i don't remember the percentages of foam to water, but it may be adjusted at the truck to make the foam thicker or thiner. The thick stuff is used on the runway when a aircraft is landing wheels up. This reduces the sparks and hopefully the fire danger. After we are thru with the foam it is washed away with clear water, lots of water.

Even standard firefighting units have foam containers to help with certain types of fires.

There is a container that holds the foam base. A special attachment fits it onto a hose so that the water mixes with the base and dispenses foam.

It has been a long time since I was a volunteer firefighter so I don't remember all the details now...

LOL

Just a link from me I'm afraid.

http://www.vententersearch.com/supplemental/fdny_fe.pdf

How to get into places, by the New York Fire Dept.

Oddly enough, I built a home for the owner of one of the largest AFFF manufacturers in the world.

I was amazed at the ingredients in the foam, and their percentages when he told me.

I used to teach low level fire fighting skills in another job, to simulate AFFF I used to charge the extinguishers with washing up liquid. Pretty much the same results as foam mix but a lot cheaper.

I learned the mix was 5% "Chemical" and 95% local tap water. His comment was the local municipal water department had made him a millionaire.

Back to the origional post, becuase most of us are private people, it might be best to come at it the other direction- what do people want to learn about?