After about 8-10 seconds, it will reach a terminal velocity of 125 mph. This means it won't go faster no matter the height. This is assuming thare are no rotors under power. Another factor is if it falls flat, upright or on its side. Falling flat, the rotors might slow it down a bit. Sorta like auto-rotation, but I doubt even then, it would slow down enough to make any difference. Perhaps, only 120 mph!
As proved centuries ago, two objects of different weights will hit the ground at the same time. Having sky dived, it is easy to tell when you reach terminal velocity. The speed really hits home if you have another sky diver face to face with you. The effect of the 'wind' on the skin of their face is unforgettable!
OT, but I treasure a jump done with my late father. We jumped out at 12,000 feet and our free fall lasted 60 seconds. It could have lasted even longer, but we chose to pull our rip cords! Look at your watch and imagine going 125 mph for that length of time!
The new trend towards wind suits give about three or four feet forward for each foot fallen vertically. ( If I recall correctly. ) So, the post about a drone chute makes sense.
It is only the last micro-second that hurts!