Aero Speed

Aero Speed
Aero drag and lift?

What can be said about the lift and drag on a model airplane in a wind tunnel as the airflow speed varies?

I can’t find any graphs to explain this. Does anyone know?
Thanks

First, there is no difference of cheracteristics in lift and drag, with changing speed, wether its an actual aircraft or a model in wind tunnel.

Now lets take lift first ………. with constant angle of attack, the lift will increase with increase in speed and vice versa.

DRAG ………… with increase in speed the drag will initailly decrease, till “minimum drag speed” and then drag will start to increase.

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