The older aviation crowd may have seen this before.
It was a test crash
of a Lockheed Super Connie L1649 ? In Deer Valley AZ. In 1964.
It was something to do with fuel tests, maybe gel fuel.
Watch it several times, look for the two telephone poles used to cut into the wings. There is also a bunker that takes out the landing gear.
https://www.youtube.com/watch?v=VMjIV...eature=related
Mike