Go Back  RCU Forums > RC Airplanes > RC Jets
Reload this Page >

adjustable (turnbuckle) control rods

Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

adjustable (turnbuckle) control rods

Old 06-21-2012, 04:08 AM
  #1  
alasdair
Thread Starter
 
alasdair's Avatar
 
Join Date: Nov 2002
Location: Scotland, UNITED KINGDOM
Posts: 746
Received 14 Likes on 11 Posts
Default adjustable (turnbuckle) control rods

Has anyone used the adjustable control rods (sometimes called turnbuckle) on jets?
I have seen them advertised with either 4-40 or M3 threads and made of Al alloy or titanium
If so, how do you use them?
I suppose they have a left hand thread on one end, so can you get fittings for a left hand thread?
Attached Thumbnails Click image for larger version

Name:	Tq48814.jpg
Views:	54
Size:	64.8 KB
ID:	1774383  
Old 06-21-2012, 04:21 AM
  #2  
DelGatoGrande
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default RE: adjustable (turnbuckle) control rods

yep! thats one of the strongest setups !
I do like to run a drop of thin CA in the ball link and brake free the ball by moving it when it cures for a totally slop free move.


http://www.troybuiltmodels.com/items/TBMLINKT6.html

http://www.troybuiltmodels.com/items/DUB899.html

i also like the H9 titanium links
Old 06-21-2012, 06:10 AM
  #3  
highhorse
My Feedback: (2)
 
highhorse's Avatar
 
Join Date: Nov 2006
Location: Memphis, TN
Posts: 2,564
Received 93 Likes on 49 Posts
Default RE: adjustable (turnbuckle) control rods

I strongly suspect that these are not true turnbuckles? That they have right hand thread on both ends?

If they are turnbuckles then the question remains: where to get left-hand clevices or ball links?
Old 06-21-2012, 06:20 AM
  #4  
gunradd
My Feedback: (9)
 
gunradd's Avatar
 
Join Date: Aug 2008
Location: Springhill, FL
Posts: 3,426
Received 50 Likes on 43 Posts
Default RE: adjustable (turnbuckle) control rods

Just get the ones from dreamworks. I love them and will now use them on everybuild.
Hanger 9 prolink (turnbuckle)

http://dreamworksrc.com/catalog/tita...ks-p-1060.html

Ball link (RH thread)
http://dreamworksrc.com/catalog/mach...nk-p-1065.html

Ball link (LH thread)
http://dreamworksrc.com/catalog/mach...nk-p-1064.html

In spots you dont want a ball link I use a few of these. They are not threaded so you can thread them on either side.
http://dreamworksrc.com/catalog/clev...ock-p-994.html


Back before I had a 12 channel radio I had to set everything up mechanicaly due to lack of channels and the turnbuckles make it easy.
Old 06-21-2012, 02:13 PM
  #5  
alasdair
Thread Starter
 
alasdair's Avatar
 
Join Date: Nov 2002
Location: Scotland, UNITED KINGDOM
Posts: 746
Received 14 Likes on 11 Posts
Default RE: adjustable (turnbuckle) control rods

Thanks guys, but my question is still out there.
Do these things have a left hand thread on one end?

From out Athenian friend's post I suspect that, if they do, we must use a plastic linkage in which it will cut its own thread?
On the other end I suppose we could use a normal metal clevis (or another plastic ball-link).
Old 06-21-2012, 03:02 PM
  #6  
invertmast
My Feedback: (23)
 
invertmast's Avatar
 
Join Date: Dec 2003
Location: Capon Bridge, WV
Posts: 8,192
Received 223 Likes on 114 Posts
Default RE: adjustable (turnbuckle) control rods


ORIGINAL: alasdair

Thanks guys, but my question is still out there.
Do these things have a left hand thread on one end?

From out Athenian friend's post I suspect that, if they do, we must use a plastic linkage in which it will cut its own thread?
On the other end I suppose we could use a normal metal clevis (or another plastic ball-link).
It depends on the manufacturer. The hangar 9 pro links are left and right hand threads, you can also get left and right hand threaded ball links from dreamworks.

If you are asking specifically about the ones from hobby king, then you probably should send them an email asking as i dont think many, if any here use hardware from there
Old 06-22-2012, 01:32 AM
  #7  
alasdair
Thread Starter
 
alasdair's Avatar
 
Join Date: Nov 2002
Location: Scotland, UNITED KINGDOM
Posts: 746
Received 14 Likes on 11 Posts
Default RE: adjustable (turnbuckle) control rods

Thanks,
That's the answer I was looking for. I had no idea you could get left hand thread ball links.
Old 06-22-2012, 02:31 AM
  #8  
Xairflyer
My Feedback: (1)
 
Xairflyer's Avatar
 
Join Date: Dec 2002
Location: Co. Donegal, IRELAND
Posts: 2,760
Received 0 Likes on 0 Posts
Default RE: adjustable (turnbuckle) control rods

As you are not tensioning anything (proper use of a turnbuckle) then two right hand threads suit our purpose better and much easier to obtain clevis/ball links etc. Should also be locked with a nut.
Old 06-22-2012, 02:39 AM
  #9  
smchale
My Feedback: (67)
 
smchale's Avatar
 
Join Date: Jun 2002
Location: Philadelphia PA
Posts: 2,809
Likes: 0
Received 2 Likes on 2 Posts
Default RE: adjustable (turnbuckle) control rods

The advantage of the turnbuckle is that you can adjust its length without removing it from the servo arm or control horn. Easier to fine tune. Then when you get the desired length you tighten a nut on one end (usually the std thread end). If you use a rod with the same direction thread you have to remove one end at least for mechanical adjustment.

Also, if you want ultra precision your accuracy on a rod with the same thread on each end is only that you can practicaly adjust in 180 degree increments of your clevice. The rod with opposite threaded ends allows near infinite adjustment.
Old 06-22-2012, 03:28 AM
  #10  
HarryC
My Feedback: (1)
 
Join Date: Feb 2002
Location: private, UNITED KINGDOM
Posts: 3,672
Likes: 0
Received 25 Likes on 15 Posts
Default RE: adjustable (turnbuckle) control rods

Alasdair, ball links are widely available with left hand threads, in plastic and various metals, but in industrial sizes rather than model size even at M3 size, however that does give you lots of strength for larger faster models. The trick is to know that they are not called ball links, but rod ends. Google for M3 rod end
Old 06-23-2012, 01:11 AM
  #11  
alasdair
Thread Starter
 
alasdair's Avatar
 
Join Date: Nov 2002
Location: Scotland, UNITED KINGDOM
Posts: 746
Received 14 Likes on 11 Posts
Default RE: adjustable (turnbuckle) control rods

Thanks Harry,
I want to use M3 rather than 4-40
Maybe I will stick to steel threaded rod, as the length is infinitely variable and my LHS stocks the fittings.
As smchale says, turnbuckles are easier to adjust, but it has to start the exact size for the installation, and then you get a few turns of adjustment either way.
Old 06-25-2012, 11:21 AM
  #12  
GR7Racer
 
Join Date: Feb 2006
Location: , CA
Posts: 281
Likes: 0
Received 1 Like on 1 Post
Default RE: adjustable (turnbuckle) control rods

Nylon ball links will thread onto the left handed thread end of these turnbuckles no problem...New threads are cut by the turnbuckle when you thread it on.

KMac
Old 06-25-2012, 01:19 PM
  #13  
BaldEagel
 
BaldEagel's Avatar
 
Join Date: Oct 2005
Location: Kent, UNITED KINGDOM
Posts: 9,669
Received 5 Likes on 5 Posts
Default RE: adjustable (turnbuckle) control rods

Alisdair

"Conrad Electronics" have rod ends in M3 left and right hand ali with brass balls only removable from one side, can't find my link at the moment, but I have posted it before, perhaps a search may bring it up.

Mike
Old 06-25-2012, 02:27 PM
  #14  
indubitably
My Feedback: (14)
 
Join Date: Dec 2008
Location: Bakersfield, CA
Posts: 321
Likes: 0
Received 0 Likes on 0 Posts
Default RE: adjustable (turnbuckle) control rods

Yes, if you use the plastic ball ends like the Heli flyers do, the plastic starts out without threads, and the threads are forced into the ends when threading onto the threaded rods left or right.
John

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.