Need Help - Drifting Left - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE

Go Back   HeliFreak > R/C Electronics Support > BeastX FBL System

BeastX FBL System BeastX FBL Flybarless System Software and Hardware Support

Thread Tools Display Modes
Old 04-25-2012, 01:00 PM   #1
Registered Users

Join Date: Jul 2007
Location: Southern, NH
Default Need Help - Drifting Left

Setup a 600N with a beastx.... Working great....

Crashed due a servo wire that got pulled out of the reciever.....DOH.

Got the rebuild done but now I can't get it working correctly.

In a hover it drafts left and won't stablize.

I have swapped BeastX units, have totally reset the unit and the radio settings.

I even bound the heli to a different radio.

There does not seem to be any vibrations. The servos seem strong but one of the servo wheels was stripped in the crash.

I don't know what else to check..... H-E-L-P help!!
nhhover is offline        Reply With Quote
Old 04-25-2012, 01:40 PM   #2
Registered Users
Posts: 5,831
My HF Map location
Join Date: Sep 2010
Location: Revelstoke BC Canada

What do you mean by drift? Rolling or physically moving left? Sure it's not just the tail rotor pushing the heli to the left? Is your swash totally level?

Sent from my iPhone using Tapatalk
Dan Pesonen
FBL, Don't think about it, DO IT.
mCX2, nCPX, mCP X, Blade 400, MSH PRTOS, T-700N
I put that S*** on everything!"
banditpowdercoat is offline        Reply With Quote
Old 04-25-2012, 04:56 PM   #3
Registered Users
Posts: 1,256
My HF Map location
Join Date: Jan 2008

I'm having the exact same issue. I'm suspecting the tail grip bearings are binding, but they seem totally smooth. I hope you find the answer - if I do I'll let you know. Also suspecting tail servo damage, even though I doubt that's it.
Perhaps a difference. I CAN stabilize mine by "flying the tail". If I keep right rudder I can hold it straight. Also, it starts fine and then acquires the drift.
Too many helis, too little time. Spektrum DX8
Trex 100, 250 DFC, 450 DFC pro, 550 V2 DFC
All FBL running AR7200BX
ryem3 is offline        Reply With Quote
Old 04-26-2012, 09:38 AM   #4
Registered Users
Thread Starter Thread Starter

Join Date: Jul 2007
Location: Southern, NH
Default Rolling left

Sorry, I was not clear about the is a roll left so not assoicated with the tail.

I did go about leveling the swash. I am thinking it is has to be related to a servo but wanted to see if anyone else has this experience....
nhhover is offline        Reply With Quote
Old 04-26-2012, 09:45 AM   #5
Registered Users

Join Date: Dec 2010
Location: Australia

From my experience:

Remove all blades.
Spin up helicopter - at 100 percent throttle
WATCH your fingers and make sure helicopter is secured.
Now watch the swash plate. It should be level and rock solid. Check for any leaning or pitching of the swash plate. It may take 10 or 15 seconds to occur. Also check the tail. The slider should not move. If there is any movement on the swash or the tail, you most likely (99.999% sure) have a vibration issue.

To isolate the vibration, disconnect the tail, spool up again. Does the problem still exist? If so the problems in your Rotor Head. If not, the problems in your tail... Fix and fly

General38 is offline        Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Copyright © 2004-2016 by, LLC except where otherwise indicated. The logo is a trademark of, LLC.