Originally Posted by
Brercrow
Here you are saying that airspeed can change just because of changing head/tailwind components without a force being applied
Well that's the same as what I am saying
No, that absolutely is not the same as you are saying. He is talking about changing wind components when flying across wind velocity gradients, in other words, when the wind is changing relative to itself, a non constant, non uniform wind. You are talking about flying in a uniform, constant wind, where no wind gradients exist ...yet somehow through maneuvering the airplane causing a tailwind. That is something completely different than what he's talking about.