ORIGINAL: solartech
I have a problem with my Blade. Durring flight the helecopter surges up and down, even when indoors. Is this what happens when the collective pitch sticks? Or is it an electrical problem, like glitching or a bad servo? I did notice that the part where the flybar is has a lot of play and it doesn't slide up and down on the rotor head freely under load. I have over 50 suscessful flights and this problem developed on its own, not as a result of a chrash.
Mine developed the sticky collective after about that same # of flights and I had been noticing the flybar getting more and more slop in relation to the main blades (they would wiggle back and forth ). So I disassembled the head and replaced both the rotor head and the flybar holder "thingy" (can't remember name ). Anyway it's the two pieces that slide together when the pitch is moved. It did the trick. while I had everything apart I lubed every joint with hobby lube. I also switched to 3BB grips but It wasn't the problem. Hope this helps.
P.S. I got a great deal on a used raptor 50, I just can't start it until Christmas,(says the Wife), but I can hardly wait!!