Why does my RC plane roll left when I increase throttle?

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

Answer: A common cause of your RC plane rolling left as you increase throttle is torque from the motor and propeller. When the prop spins clockwise (as viewed from the rear), it creates a reactive force that tries to roll the plane in the opposite direction (left roll). To fix this, first check your plane's trim settings: use the aileron trim to counteract the roll. If the problem persists, you can slightly adjust the ailerons or add a small amount of right aileron input on your transmitter when you increase throttle. Another step is to verify your motor and propeller alignment—make sure the prop is mounted correctly and balanced. Also, check the centre of gravity; if it’s too far back or off-centre, it can exaggerate rolling tendencies. Finally, consider installing a small amount of right thrust angle by slightly angling the motor mount to the right, which counteracts the torque roll. Try these adjustments one at a time and test your plane in a safe, open area to find the best solution.