My manual says my model should have washout of x degrees. What is washout and how do I tell if my model has the proper amount?
For a definition of washout, please see our glossary. You will want to utilize an incidence meter to determine the washout of the wing of your model. To do so, set the incidence meter on the root of the wing, and read the angle of attack of the root. Write this down. Now measure the angle at the tip of the wing and write this down. The washout in your wing is the difference between these two measurements (root – tip = washout). Note that washout means the leading edge of the wing tip is lower than the leading edge of the wing root. If it is the opposite, the model has washin, which is desirable in certain types of aerobatic models for extreme performance, but not in most other models due to decreased stability.
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