Ron Hardin wrote:

Losing altitude at a constant rate (rather than accelerating downward)
would be the same as maintaining a constant altitude, wouldn't it?
(Vectors on a free-body diagram and all that)

Don

You get additional horsepower from going downhill, letting you maintain
your speed.

Power is a different issue than g-loading. Power has only
coincidental impact on stall speed (you do get a small gain
from the prop blast).