[thackney]

but man the potential of the fireballs after a derailing are frightening.

LNG has to vaporize before it can ignite. Once it is vaporized it has to be mixed with air down to a 15% concentration before it can be ignited. Less than 5% and it won't ignite either.

While the methane vapor is being diluted, it is also being warmed with the ambient air. Methane is much lighter than air and when sufficiently warmed, it rises rather than pools on the ground.

While you can spill LNG, vaporize, dilute then ignite, it really is not capable of a mass explosion. Once you ignite the edge of a vapor cloud, it is going to feed the fire fast, but it is going to be a rising flame, not a ground explosion of the entire mass at once.

[Last Dakotan]

Once you ignite the edge of a vapor cloud, it is going to feed the fire fast, but it is going to be a rising flame, not a ground explosion of the entire mass at once.

You try it first.

[jiggyboy]

Much obliged. Too many Hollywood movies I guess.