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Blade 330X Blade 330X Helicopters Information and Help


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Old 09-28-2018, 08:05 AM   #1 (permalink)
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Join Date: Dec 2016
Default Need some help with this one...

So about a week ago I was out flying my 330X in Idle Up 2. I was about 20 feet up and out of the blue the heli started to cant to the left without any input from me. In a panic I hit throttle hold thinking it would come down over the grass but of course it landed on the small paved walkway near my field and smashed down hard.

Damaged parts included feathering spindle, main blades, main gear, canopy, canopy post.

To be safe, I replaced nearly the entire head assembly including the main shaft.

I got it back up and running and last night I took it outside for a test hover. It flew perfectly stable in normal mode but once I switched into Idle up, it began having some very erratic tail movements. I wouldn't calling a wag, more of a dance. The tail didn't suffer any damage in the crash. I tested out around 3 different sets of brand new tail blades to rule out any tail blade imbalance. Again, the issue is only observed when in Idle up modes. All servos move freely and normally and I have zero pitch with a leveled swash plate. It has no shakes and no vibrations during spool up and spool down. I have set up a brand new model in my DX9 thinking maybe something went haywire but I am out of ideas.

Could it be a bad FBL?
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Old 10-11-2018, 11:30 PM   #2 (permalink)
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Join Date: Jun 2006
Default

Hi,

Almost certainly vibration...I havea number of these helis, and have discovered the new fbl unit is more suceptible to vibration issues than the older Beast...To that point, I have replaced rwo of the new units with older 7200 units, chang3d nothing else, and issue went away..
If you are a brave soul, dynamically balance the tail and main rotors by spooling up in hand...I know, very dangerous...but a better flying heli always worth it..do tail first, then main blades...small pieces of transparent tape on bottom of blades works wwll to balance...
In addition, be sure the tr belt is correctly tensioned...too tight or loose causes vibes as well....

Good luck!

John.
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