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 your RC plane’s centre of gravity (CG) is too far forward or there’s an issue with your elevator trim. First, check the CG by balancing the plane at the recommended point, typically around 25-33% of the wing chord from the leading edge. If it’s nose-heavy, move the battery or add small weights towards the tail. Next, confirm your elevator trim is set neutral before launch; if it’s trimmed down, the nose will pitch down. Also, verify that the control surfaces respond correctly—when you pull the stick back, the elevator should move up, raising the nose. Finally, ensure you launch with a smooth, level throw rather than pushing the nose down. Adjust these factors step-by-step, and your plane should fly level on launch instead of diving.

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