[Cold Heat]

I just cannot see how a large area, say 10 x30 inches (as some have purported) could have been stripped away completely or even 80 % by some relatively soft product with little mass. Since most of the energy would be absorbed by the break up of the insulation, the applied energy at any one point would not be sufficient to destroy enough tile to be a factor.

[spunkets]

Well if the foam weighed a lb. and it was going 300mph, that's 6012ft-lbs, or 3K ft-lbs if it's a 1/2 lb. If it's 1lb. going 150mph that's 1.5K ft-lbs. That's not a small hit. Imagine you, or a fine silica structure was hit by that.