Fun, Learning, Friendship and Mutual Respect
START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 500 Class Electric Helicopters


500 Class Electric Helicopters 500 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


Reply
 
Thread Tools Display Modes
Old 07-18-2011, 07:32 PM   #1
HD2Pct
Registered Users
 

Join Date: Jun 2011
Location: Illinois
Default Bent Rotor Housing?

After a small tail strike where I had to place the front TT gears on the 500, on my test flight I noticed that the head seemed to be wobbly as it spun down. I pulled the main blades and powered it up and you can definitely see a wobble in the housing(when you look at the head button) I pulled the main shaft, and it is straight. Do these housings actually bend? From what? I have also read that this is normal. I am wondering if I am making too much out of nothing. (?)
HD2Pct is offline        Reply With Quote
Old 07-18-2011, 08:32 PM   #2
cgetman02
Registered Users
 
My HF Map location
Join Date: Apr 2009
Location: Savannah, GA, USA
Default

The rotor housing is one of the most common parts that I have to replace. I always keep a stock of them. Changing them out isn't all that bad after you have done it a couple of times. You'll never get your tracking right with a bent one.

FWIW, Crashmaster
__________________
Curt in Savannah, GA
Chaos 600 12S WOO HOO!!
EXI 500CF Qty. 2
cgetman02 is offline        Reply With Quote
Old 07-18-2011, 08:36 PM   #3
wanderer56
Registered Users
 
Posts: 4,006
 
My HF Map location
Join Date: Oct 2009
Location: Lafayette, LA., USA
Default

Fought a vibration for about 2 months because I didn't think a "little tip-over" could have possibly bent the main rotor housing. Wrong! Smooth as silk now.
__________________
Trex 500-3226-1600, 14T, Koby 90LV, HS-5245MG, DS655, AR7200BX, DFC
Trex 450 Sport-2221-8, 15T, CC Edge 50 Lite, HS-5065MG, HSG-5084MG, AR7200BX, DFC
DX8
wanderer56 is offline        Reply With Quote
Old 07-18-2011, 09:16 PM   #4
blackmagic08
Registered Users
 
Posts: 677
 

Join Date: Jul 2010
Location: Fairfield County, CT
Default

Just to standardize the terminology... are you referring to the "rotor head" or the "feathering shaft" or perhaps the "blade grips?"

the more universal the terms, the more we are all on the same page and can help.
blackmagic08 is offline        Reply With Quote
Old 07-18-2011, 09:57 PM   #5
HD2Pct
Registered Users
Thread Starter Thread Starter
 

Join Date: Jun 2011
Location: Illinois
Default

Blackmagic- Align calls it the Main Rotor Housing, so I thought it would go ahead and use that term. Perhaps you call that piece the "rotor head" and I know many do, but I am trying to prevent confusion by using their terminology.

I am not referring to blade grips or the feathering shaft. Although it's possible to get similar symptoms from a bent feathering shaft, I would think.

It's hard to believe I bent that meaty-looking housing with the accident that I had, but since I have another one, I might as well swap it out.
HD2Pct is offline        Reply With Quote
Old 07-19-2011, 07:24 PM   #6
Blayd
Registered Users
 
My HF Map location
Join Date: Jan 2011
Location: Over The Hills and Far Away
Default

Well, you might want to get used to chasing a problem, and keep some parts as stock. Feathering shaft, bearings, head, and grips are easily diagnosed if you have them to go through piece by piece. I usualy swap the feathering shaft first, since its most suseptible to bending, then the head.. after a strike.. I swap bearings in the grips no matter what usually. Ive seen quite a few housings as you call them, bent. You need to remember the shaft only goes so far, then the top of the head, holding the feathering shaft is very easy to bend. It doesnt take much to make a severe wobble.
__________________
Trex700N2E
Trex500ESPTT(PRO head and Tail )
Trex500ESP (Belted)
HC500SE ....GO TEAM FLYBAR!
Blayd is offline        Reply With Quote
Old 07-19-2011, 08:49 PM   #7
HD2Pct
Registered Users
Thread Starter Thread Starter
 

Join Date: Jun 2011
Location: Illinois
Default

Blayd - yeah that's what it was. A bent rotor housing. I don't recall doing anything to cause that to happen. My blades have stayed out of the dirt. Maybe I did something stupid while carrying it.
HD2Pct is offline        Reply With Quote
Old 07-19-2011, 09:33 PM   #8
memosteve
Registered Users
 
Posts: 1,105
 
My HF Map location
Join Date: Mar 2010
Location: Tillamook, Or
Default

I've bent two "main rotor housings"... the first time was due to a crash, the second I still don't know what happened as there was only ever the one crash on this machine.
memosteve is offline        Reply With Quote
Reply




Unregistered
Go Back   HeliFreak > R/C Helicopter Support > 500 Class Electric Helicopters


500 Class Electric Helicopters 500 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

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 © 2004-2015 by RCGroups.com, LLC except where otherwise indicated. The HeliFreak.com logo is a trademark of RCGroups.com, LLC.