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 effects from the propeller. The spinning propeller creates a reactive force causing the plane to roll in the opposite direction of the propeller’s rotation. Here’s how to address it:
1. Check propeller rotation: Confirm your propeller spins in the correct direction as per your plane's design.
2. Adjust control surfaces: Slightly increase right aileron trim to counteract the left roll.
3. Use differential thrust or mix: If your transmitter supports it, set up throttle-to-aileron mixing to automatically correct roll with throttle changes.
4. Balance the plane: Ensure the centre of gravity is correct and the plane is well balanced.
5. Test with lower throttle: Gradually increase throttle to see how the plane responds and make incremental trim adjustments.
These steps should help you manage torque-induced roll and improve flight stability.