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 centre of gravity (CG), excessive throttle, or improper launch technique. First, check that the CG is correctly positioned—typically around 25-33% of the wing chord from the leading edge. If the CG is too far forward, the plane will naturally pitch down. Adjust by moving the battery or adding small weights towards the tail. Next, avoid full throttle on launch; instead, apply moderate power to maintain control. Also, ensure you launch the plane gently and level, not pointing it steeply upwards or downwards. Finally, verify your control surfaces: the elevator should be neutral or slightly up at launch. If problems persist, try trimming the elevator slightly up in your transmitter settings. Performing these checks step-by-step will help prevent nose dives and ensure a smooth, controlled launch.