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How to Fix RC Helicopters

Flying an RC helicopter is a difficult task, one that requires hours of concentration and practice even when it comes to the most basic maneuvers. While caution and gradual experimentation will minimize your risk of damaging the aircraft, it's important to anticipate a crash by learning how to perform simple repairs. Knowing how to fix your helicopter will hone your knowledge of the aircraft, while saving you money in the event of a crash.

Things You'll Need

Screwdrivers
Needle nose pliers
Allen key

Instructions

- 1
  Remove broken blades with an Allen wrench or screwdriver by unscrewing the fasteners. Install your replacement blade into the mounting bracket, then tighten it closed with the screws. Be careful not to over-tighten, since this may crack the new blade.
- 2
  Adjust the trim settings if your helicopter spins uncontrollably after an accident. Correct a counter-clockwise spin by clicking the trim adjustment for the rudder to the left; push it to the right to compensate for clockwise rotation. Apply a gentle pressure to the blades with the pliers if the trimming doesn't correct the issue. Bend the back edge of the top blade to correct a clockwise spin, or the bottom blade to compensate for a counter-clockwise rotation.
- 3
  Move the rotor shaft up and down to adjust loosened gear mesh. If the rotor shaft doesn't move, tighten the shaft by placing the base of the motor shaft, then gently pushing down the top of the main gears. Don't over-tighten the rotor shaft, since this will cause it to stick.

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