I was in the boondocks last week and had a striking example of a jet climbing up to its ceiling around 2 or 3 miles away. I tried to figure out the answer to th

I was in the boondocks last week and had a striking example of a jet climbing up to its ceiling around 2 or 3 miles away. I tried to figure out the answer to this in my head and didn't get anywhere - was hoping a kind geek would come up with something.