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, it’s typically due to torque and P-factor effects from the propeller. The engine’s rotation causes a reactive force that tries to roll the plane in the opposite direction. To correct this, first check your control surfaces to ensure the ailerons and trims are neutral at low throttle. Then, try adding a small amount of right aileron trim or slightly adjust the control throws to counter the left roll. Another step is to verify the motor and propeller are mounted correctly and not damaged. If your plane has adjustable thrust angles, set a slight right thrust angle to help counteract the torque. Finally, test your plane at low altitude to confirm the adjustment works safely. This is a common issue and minor trim changes usually fix it, improving your plane’s stability during throttle increases.