that wholly depends on what forces are acting upon it - another pointless question???[...]
You are a very patient man.
[...]If you mean 'will a heavier aircraft take more power to arrest a descent than a light one?' then the answer is yes[.][...]
Speaking of power: The power you need depends on the forces on the Helo as you said. Mechanical force is mass multiplied by acceleration. Following this law and your statement:
The empty one - rotor thrust must equal mass so the heavier helo has to accelerate the air down quicker using more AoA and giving a faster downwash speed[.]
The lighter helo has to decend faster to get in the same state as the heavier helo, right?
Greetings,