4000 fpm = 45mph, I would have thought that was survivable
A fire was started on impact, I believe.
I remember reading that the lines of chance of survival vs. non-survival cross at about 25mph. That was specific to falling injuries ie. falling from a height.
That’s a decent rate of 66.7 ft/sec. You’re not going to survive that. A helicopter doesn’t have 6 feet of hood-space or trunk to absorb that impact.
#9 The explosion and fire was not. The photo show complete destruction.
You hit a solid object at 45mph on a motorcycle.....and you are dead.