Why does my RC plane roll to the 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, the most common cause is torque effect from the motor and propeller. The spinning propeller generates a reactive force that tends to roll the plane in the opposite direction. To correct this, first check your control surfaces and ensure the ailerons and rudder are properly centred and not causing unintended roll. Then, try trimming the ailerons slightly to the right to counteract the left roll. Another useful step is to apply a small amount of right rudder input during throttle-up to balance the torque. If your plane has adjustable motor mounts, you can angle the motor slightly to help offset the roll. Finally, consider the propeller type and size; some props create more torque effect than others. Testing in calm conditions and making small incremental adjustments will help you find the right balance. This approach ensures smoother, more controlled climbs without unintended rolling.