Today, we look at gurney flaps, a simple yet effective aerodynamic device for wings. The gurney flap is a small spoiler like device, typically 2% of the length of the wing chord in height, that improves the aerodynamics characteristics (downforce/lift and drag) of a wing.

Check out the original video from Grays Garage if you have time!
   • auto aerodynamics : the gurney flap. ...