what’s the slowest speed for a 747?
0..............................
Going to get technical, ground speed could be less than 0.
Would take a mighty jet stream, of course.
In level flight, a 747 would be having some major artifacts of a *sustained* flight at 110 knots.
Pitch high, perhaps buffeting. Every aircraft has different stall characteristics.
LKOL. You beat met to it.
60 years late ...
https://www.airspacemag.com/history-of-flight/i-was-there-when-the-dc-8-went-supersonic-27846699/