Peter Duniho wrote:

I wrote "straight and level flight" simply because that was the scenario
being discussed in the original post. But any unaccelerated flight means
lift equals weight, and that includes the "fully developed spin" and "steady
sinking mush" Roger described.

It depends on how you define "lift". If every upward pointing force is
lift, you're correct. If however you make a difference between, hmmm,
let's call it "true" lift created by the airfoil and drag that's just
incidentally pointing upwards, then you're not.

Stefan