Here is a summary of a topic from a BBS.

Regarding Aileron Control During Takeoff Taxiing:

1. In calm or headwind conditions, keep the ailerons basically neutral.
2. In crosswinds exceeding 30 degrees, you need to turn the ailerons into the wind before starting to taxi. 2-1. In a 90-degree crosswind (i.e., direct crosswind), turn the control wheel fully into the wind. 2-2. In a 60-degree crosswind, turn the control wheel about 2/3 into the wind. 2-3. In a 30-degree crosswind, turn the control wheel about 1/3 into the wind.

As speed gradually increases, the effectiveness of the rudder also increases. Therefore, you can gradually reduce the aileron deflection as speed increases. Ultimately, just as the aircraft leaves the ground, the ailerons should be slightly turned into the wind. In order to fly straight aligned with the Runway direction, once the aircraft is fully airborne, it is necessary to fly using a Wind Correction Angle (WCA).

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