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At What Angle of Attack Will a Plane Stall?

CSEF · 2003 Aerodynamics/ Hydrodynamics

Zachary N. Johnson · San Juan Elementary School, San Juan Bautista

Overview

Objectives/Goals My objective was to find the exact degree of angle of attack that a plane would stall. Methods/Materials i built a wind tunnel that got 30 mph in the test section (where the plane is) using a 1/4 horsepower motor (1600 rpm). I also built two small wings and used a scale to test where the wing had stalled. I would change the degree and then test and see if the plane had stalled. Results My results showed that the average degree that a plane would stall was between 30 degrees and 40 degrees. My results agreed with my hypothesis. Conclusions/Discussion I concluded that the wing stalled in various areas because of a faulty scale. They were close but the degree was not exactly the same. If I were to redo this project, Iwould use another scale.

Summary statement

My project was meant to find the angle of attack that a plane would stall.

Help received

Uncle helped build wind tunnel

Competition history

  • CSEF 2003 Aerodynamics/ Hydrodynamics · Entry J0115

Resources

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