NL
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Lift and angle of attack

Change the angle of attack and the speed and see how the air flows around the wing, and when it lets go.

3.5°
80 kt

Lift and weight are equal: you fly level.

Your CL
0.55
CL needed to fly level at 80 kt
0.54
Lift
1.02 × your weight
Twice as fast, same angle
4.07 × your weight

Example wing of a training aircraft: critical angle 16.0°, stall speed 48 kt in level flight.

Lessons with this instrument