Spiny Norman said:

Michael V said:

Spiny Norman said:

I haven’t read that yet. So did they? It seems unlikely. With speed increasing uncontrollably the first thing you do is pull the power back and try to pitch the nose up.
Then like I just wrote, if that doesn’t work you start trimming the nose up.
If that doesn’t work maybe go inverted and maybe try extending the landing gear and maybe the flaps bit by bit.

It it sure sounded like that (to highly inexperienced me). I saw that someone had calculated (they explained how, but I can’t recall how) that it hit the ground at near Mach 1.

Okay I’ll see if that pops up in my feed at some point, ta.

It was quite in the comments and discussion attached to one of the links you put up. r/aircraft or some-such.