Flight
Natural Sciences · Intermediate · Lesson 3 of 7

Lift & Stalls

The lift equation and angle of attack

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

  • Lift L=12ρv2CLAL = \tfrac12\rho v^2 C_L A, with CLC_L set by the angle of attack.
  • Above about 15°, the airflow separates and the wing stalls.
  • Thin air means faster take-offs and longer runways.

Steps

  1. The lift equation
  2. Tilting the wing
  3. Take-off speed
  4. Holding up a light aircraft
  5. Banking turns
  6. Hot and high