Why Does My RC Plane Roll Left When I Increase Throttle?

Question: Why does my RC plane roll left when I throttle up?

Answer: When your RC plane rolls left as you increase throttle, it’s usually due to torque effect from the propeller. The spinning prop creates a reactive force that tends to roll the plane in the opposite direction. To fix this, first check your control surfaces to ensure the ailerons and rudder are correctly trimmed and centred. Next, try adding a small amount of right aileron trim or rudder input to counteract the left roll. If your transmitter allows, set a throttle-to-aileron or throttle-to-rudder mix to automatically compensate as you increase throttle. Also, verify the motor and propeller are installed correctly and not damaged, as this can affect thrust direction. Finally, consider the plane’s design; some models naturally exhibit torque roll, so pilot input or mechanical adjustment is needed. Testing in a safe, open area with small adjustments will help you dial in the correct setup.