Fun, Learning, Friendship and Mutual Respect START  HERE

Go Back   HeliFreak > R/C Helicopters > Main Forum - Helicopter Talk

Main Forum - Helicopter Talk R/C Helicopters and the people who fly them. VENDOR TOPICS DO NOT GO HERE. Full Scale Heli threads go in OT please

Thread Tools Display Modes
Old 10-30-2009, 12:23 AM   #1
Registered Users

Join Date: Oct 2009
Location: Bronx, NY
Default Vibrating / Shaking / Instability with Esky King 3

Hey guys. So I am having a problem with some shaking and instability with my King 3. I had a crash about a week ago and replaced some blades, runners, and a servo, but something else is making it shake. I set the pitch of the blades and flybar after changing all the parts also. I still have my training gear on and i can see its shaking on the ground, and I also had it hovering today right next to me and I could tell its shaking around in the air as well. It doesnt seem like the main shaft is bent when i spin it up in the house and hold it down, and i dont see anything else that appears broken. Any ideas what could be causing it?

Also, I think the gyro might be acting up since the crash. I havnt been flying long, just a few times, but I remember the Heli being fairly stable when giving it an increase or decrease in power. I gave it about half throttle today in a take off and it spun almost half way around before catching itself. How much should I have to correct the rudder when hovering or increasing and decreasing power? Does this sound normal, broken, or in need of some kind of adjustment? Thanks!

DieselFJG is offline        Reply With Quote
Old 10-30-2009, 01:02 AM   #2
Registered Users
Posts: 932

Join Date: May 2006
Location: Auckland, New Zealand

It's almost certainly your Mainshaft or Spindle.
Jason Greenwood
JAGNZ is offline        Reply With Quote
Old 10-30-2009, 04:10 AM   #3
Registered Users

Join Date: Apr 2007
Location: Atlanta, GA

It is most likely the feathering shaft.

It seems they always bend in any crash. You should order some hardened shafts - they're a little better.

John in Atlanta
It is what it is.
johnmcda is offline        Reply With Quote
Old 10-30-2009, 07:56 AM   #4
Registered Users
Posts: 269
My HF Map location
Join Date: Jul 2009
Location: Belgium

If you want to be sure, replace all three shafts (main, feathering, tail rotor) after every serious crash... then you're sure to start tuning from solid ground.
gratefulfrog is offline        Reply With Quote
Old 10-30-2009, 11:51 AM   #5
Registered Users
Posts: 4,006
My HF Map location
Join Date: Oct 2009
Location: Lafayette, LA., USA
Default Hardened shafts

You might want to consider the aftermarket "Hardened" versions of main and feathering shafts. The King 3 is a little tough to get to the main shaft. You have to split the frame to get to the mainshaft.
wanderer56 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.