[Steely Tom]

I wonder if the fact that it was a “stealth” helicopter makes any difference as far as losing lift is concerned?

I don't know much about helicopters, and even less about "stealth" helicopters, but 30 years of engineering intuition tell me that whatever they're doing to make that machine stealthy is probably not helping it's flight characteristics.

[BwanaNdege]

The Stealth treatment probably slowed max airspeed and the changes to the tailrotor probably affected anti-torque authority, but hover lift should not have been affected, unless main rotor blade tip changes screwed thing up.