Why does my RC plane nose dive on launch and how can I fix it?

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

Answer: A nose dive on launch usually means the plane’s centre of gravity (CG) is too far forward or the elevator trim is set incorrectly. Start by checking the CG: it should be slightly ahead of the wing’s midpoint, as specified in your plane’s manual. Adjust battery or add small weights towards the tail to shift the CG backwards if needed. Next, inspect the elevator trim; it should be neutral or slightly nose-up before launch. Also, ensure your launch technique is smooth and level—not pushing the nose down. Finally, check for any damage or loose control linkages on the elevator that might cause it to deflect downwards. Test with gentle hand launches after adjustments, gradually increasing power and speed. This step-by-step approach should help you prevent nose dives and achieve smooth, stable launches.