X50 tail buzzing - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE

Go Back   HeliFreak > R/C Helicopter Support > Thunder Tiger 30/50 > Titan X50

Titan X50 Thunder Tiger Titan X50 Helicopters

Thread Tools Display Modes
Old 12-05-2012, 07:54 AM   #1
Registered Users

Join Date: Jul 2005
Location: Lewis Center, OH
Default X50 tail buzzing

I have been having an issue with my x50 that I can't track down. The tail makes a loud buzzing under load. I have tried numerous tail blades and even mounted an Align v2 hub and grips but the issue still persists. Today I noticed play with the rear input gear assembly in the tail case. I can move the gear in and out about 1mm and I can also spin the bearing in the tail case. I disassembled the tail tonight and noticed the bearings and spacer for the input bevel gear are not a tight fit in the tail case. Anyone else have this issue? How tight should the bearings and spacer fit in the tail case?
Gscott is offline        Reply With Quote
Old 12-05-2012, 08:46 AM   #2
Registered Users
Posts: 1,130

Join Date: Sep 2010
Location: Leeds, Al.

It sounds like the drive shaft is fluttering. Check your bearing placement and may be even add another bearing to the shaft.

Titan x50 FBL, R50 Titan SE FBL, R50 V2, R30 V2 , Trex500, T-Rex 450x2, mCPx X2,
tr911 is offline        Reply With Quote
Old 12-05-2012, 11:59 PM   #3
Registered Users

Join Date: Jul 2011
Location: Maple Ridge, BC, Canada

Mine had a similar probem then I heard that the X50's have insufficient torque tube support so I did the double bearing up grade almost right away. Never had a probelm since
TT titan x50 / TT mini titan / JR Vigor CV... ...vbar'd / 700 airwolf streched JR Voyager mechanics / JR Venture CP
Elgyn is offline        Reply With Quote
Old 02-10-2014, 07:52 AM   #4
Registered Users

Join Date: Sep 2009
Location: france

Hi! I have the same problem that you and I would like to know if a washer 6x10x1.0 will help to fix the problem or if it's too big?
dede60 is offline        Reply With Quote
Old 02-10-2014, 02:45 PM   #5
Registered Users

Join Date: Dec 2007
Location: U.S.A. - Maryland

hi there, have a look at this if you haven't already....Post #30....might help....and also the 2nd link......


jinxjx is offline        Reply With Quote
Old 02-11-2014, 08:51 PM   #6
Registered Users

Join Date: Sep 2006
Location: Glendale, AZ

If you read my posts in this thread you can see where I had to remove some of the start shaft length as it was rubbing on the crankshaft. Pictures included.


The X50 is a great flying heli, with some of these things to check you can avoid some of the issues people sometimes have.
skytrekin is offline        Reply With Quote
Old 02-15-2014, 08:45 PM   #7
Registered Users
Posts: 8,979

Join Date: Oct 2008
Location: Midland, MI - USA

I've had tail buzzing before in my other helis. I had noticed it after touching tail blades in the grass. It turned out to be a bent tail hub in my case. I was unable to see the deformation, but swapping it out came from the advice of a friend who knew of this. Sure enough...quiet and smooth once I swapped it out. If you bumped the tail in a landing, it's worth investigating.
= Rb43 =
Rob43 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 RCGroups.com, LLC except where otherwise indicated. The HeliFreak.com logo is a trademark of RCGroups.com, LLC.