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 is nose-heavy or the control surfaces aren’t set correctly. First, check the centre of gravity (CG): it should be slightly forward of the wing’s midpoint but not too far. Move the battery or add small weights to achieve the correct balance. Next, verify your elevator trim—if it’s set too far down, the plane will pitch down immediately. Adjust the trim so the elevator is neutral at rest. Also, ensure your launch technique isn’t pushing the nose down; throw the plane gently and level. Finally, confirm the control surfaces respond correctly—when you pull back on the transmitter stick, the elevator should move up. If you’ve checked these and the problem persists, inspect the wing incidence angle or consider a slight increase in elevator up trim. These steps should help you achieve a smooth, controlled launch without nose dives.