I recently bought a Walkera HM 5#10 RC helicopter model. I was practicing flying, when I noticed that a rotor was slightly cracked. I did not want to repair it for, I had bought spares. I just can’t figure out how to switch out the rotor blades. If someone can help me out, I’d be more than glad to reward you with ten points. Thank you all in advance.
Can someone help me out?(RC helicopter experts only)?
June 30th, 2010 
wcharly 
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honestly, its easy. There are two (or 1) screw holding the blades. Look at the spare blades you have there. Look at where the hole is to put the screw on for it. Look at the ones on the helicopter. Take that screw out, and pull the blades out and that is it. Really easy, I doubt youll break anything in the process unless youre clumsy.
DRRYHGYU