Sorry, guys- I didn't mean to state this info in absolutes. The hand example is great because it highlights how relative wind and AOA work together. I think what makes the discussion more interesting is that the relative wind we felt on our hands was due entirely to a breeze, or the driver's gas pedal.
Relatively speaking our prop wash/airflow is substantially higher than any breeze- which speaks to why throttle has the effect it does. A relative change in throttle creates the relative change in propwash, which increases airflow over the surface.
This forum isn't the right place to discuss this level of aerodynamics. Sorry guys- back to great planes!
I'm happy to continue via PM's. I agree wind has an impact- we can see that with upwind/downwind harriers.
Originally Posted by jetinteriorguy
Actually the aoa has the most impact depending on wind, the higher the aoa the more wing area exposed to the wind and the more lift due to more force. Remember as a kid holding your hand out the window of the car, holding your hand level had very little effect, but change the aoa and it has a lot of effect. As far as prop wash, it also will be affected by the wind. Going against the wind you add the wind speed to the prop wash so need less throttle for the same amount of air moving across the surface of the plane, plus the added lift generated by the wind depending on aoa. And the opposite is true going with the wind, requires a lot more throttle to maintain a harrier and the harrier is going to be at a higher speed due to loss of lift. All these forces together have an impact on a plane no matter what attitude it's in.