How an airplane flies.
What keeps an airplane in the air?
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What keeps an airplane in the air?
Fit the wing and flap before starting the tunnel.
A wing redirects air and creates a pressure difference. Lift depends on airspeed, wing area and angle of attack. Beyond a critical angle the airflow separates and lift falls: a stall. Headwind raises airspeed at a fixed ground speed.
16 m² wing; density 1.225 kg/m³. Illustrative lift curve with a fixed 15° stall threshold. A force comparison at chosen airspeed, not a flight simulator. Flows do not use the equal-transit-time myth.
Produce enough lift for level flight without stalling.
Balance lift and weight without stalling.