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 usually means the plane’s centre of gravity (CG) is too far forward or the elevator trim is set incorrectly. First, check that the CG is in the recommended range specified in your plane’s manual—typically around 25-33% of the wing chord from the leading edge. If it’s too far forward, add weight to the tail or move the battery backwards. Next, ensure your elevator trim is neutral before launch; if it’s trimmed nose down, the plane will dive immediately. Also, verify your launch technique: throw the plane level or slightly nose up with a firm but smooth motion. Lastly, inspect the control surfaces to make sure the elevator moves correctly and isn’t reversed. Adjusting these factors step-by-step should stop the nose dive and give you a smooth, controlled launch.