Originally Posted by 9D280
You need to remove either the oxygen or the fuel. (and I mean anything that will burn, not just the petrol!) Removing ignition source will stop it restarting. The wet blanket works by preventing (or reducing sufficiently) further oxgen form getting to the fuel. Water works on wood & paper type fires becasue the wood / paper absorbs it & it cools down. Petrol & oil, however, float on water, so throwing water at a petrol or oil fire will just disperse it. You guys that managed your car / bike fire with water were lucky.
Most ships have fire pumps - using plain sea water!!!
Have you ever seen the firebrigade putting out a burning car? We get lots around here!!!
They normally use just plain old water - yes they are trained and they have lots of water but there is quite a bit around a boat as well.
Even when a petrol station goes up they use just plain old water. Foam is obviously better but they don't have many foam tenders handy.
A fire in an oil refeinery - again no foam.
And finally a fire boat - I wonder where they get the water from???
Now obviously if you have something like a burning chip pan you don't just chuck a bucket of water over it - but you don't point a CO2 extinguisher at it either - you actually use something called common sense!!!