Concorde 4590
What specifically caused the Concorde to go out of control when it did?
I've heard 3 versions. That it was barely at flying speed when it took off and there was a further loss of engine power. That the fire from the front fuel tank move the C of G (already a bit too far back) to move even further. Or that the fire burned through the hydraulics.
The third one sounds most plausible to me but opinions vary.