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 and aerodynamic effects from the propeller. The spinning propeller creates a torque reaction that tries to roll the plane in the opposite direction. For a clockwise (from the pilot’s view) spinning prop, this typically causes a left roll. To correct this, first check your plane’s trim settings and adjust the ailerons slightly right to counteract the roll. You can also add a small amount of right rudder or adjust the thrust line by angling the motor slightly right to balance the torque effect. Another option is to add a bit of right aileron trim on your transmitter. Make sure your plane is properly balanced and that the control surfaces move symmetrically. Finally, practise smooth throttle increases to minimise sudden torque effects. Following these steps should help stabilise your plane’s roll when you throttle up.