Translations:KAVAN Vinx free flight glider 600mm kit - Instruction manual/83/en

From KAVAN RC Wiki

80. Now it is the time to create the indicated washout and washin - these are critically important to increasing stability and achieving smooth gliding. Lay the wing down on a flat work bench, check the wing twist. The described washouts/washin is for right handed pilots and right turn glide; left handed pilots should go for mirror image setting.