Why Does My RC Plane Nose Dive on Launch?

Question: Why does my RC plane nose dive on launch?

Answer: A nose dive on launch is usually caused by incorrect trim or improper launch technique. First, check the elevator trim on your transmitter; it should be set so the plane’s nose is slightly raised or level, not tilted down. Next, make sure the centre of gravity (CG) is in the correct position—too far forward can cause nose dives. Adjust the battery or add small weights towards the tail if needed. When launching, hold the plane firmly but gently, and throw it with a smooth, level or slightly upward motion rather than pointing it down. Also, verify that your control surfaces are moving correctly and not reversed. Finally, ensure the motor throttle is at an appropriate power level; too much power too quickly can pitch the nose down. Following these steps should help stabilise your plane’s launch and prevent nose diving.