tail problems

[frank26all]

ok,I have some issues that I don't understand,my hdx 500 has a problem with the tail blade grips.the stock blade grip flew off during a hover so I replaced the complete tail assembly with an hc500 tail assembly,during a hover one tail blade broke at the bottom of the blade near the grip,keep in mind this is a brand new tail assembly so everything is smooth ,I did notice some play where the blade grips attach ,if you pull on both blade grips they pull out just a little but gravity would keep them all the way out. the only other thing I notice is that when I use my outrage 6s 2200 everything worked fine ,it's only when I use my turnigy 2650 6s that has tons more power that everything goes awry.I'm so confused and frustrated,I've had this heli in the air four times and and twice I've had problems with the tail.
How tight do the blade grips need to be ,and will the little bit of end play on the grips affect this. SOMEONE PLEASE HELP. I'll take a short video of the slop if it will help someone to understand my problem.

[Danimal]

The only thing I can think of that might cause a blade to break like that is a faulty blade. As for your blade grips you shouldn't have any slop in there. I would suggest breaking down the grips and making sure all the bearings and washers are there and installed installed properly.Just in case you don't have it I've included a picture of the assembly from my HC500 manual.

[frank26all]

thanks danimal,I think your right,I may just have a defective tail blade .this bird is so amazingly agile I hate to get rid of it so I will try one more time to solve this problem,I may have had the grips to tight to begin with. and like everyone elses that i have read about , my headspeed is also so high it's a little intimidating , even higher than my 600 trex.

[rpheliman]

I agree with Danimal on the tail slop, something has to be wrong in the assembly. I have never experienced any extra slop in the tail. Also, did you buy the HC tail blades? I have run them for a long time and never have had one fail either. I have since changed to some Trex blades ( i liked the color yellow for visibility ) still with no issues. I know what you mean with the Turnigy packs. I gain at least 200 rpm over my other packs. I am running the 3.0 3000 6S packs and they rock!! (i moved the canopy .250" forward to fit them)Your HC should tach well over the trex 600 in headspeed. The 600 should run about 2100 to 2300 maybe and the HC should be in the 2700 range. I know I have seen 3000 on mine a few times with the hot packs. Good luck and don't give up!