RCU Forums

RCU Forums (https://www.rcuniverse.com/forum/)
-   Tips & Techniques (https://www.rcuniverse.com/forum/tips-techniques-180/)
-   -   Large Control Arm/Bellcrank needed (https://www.rcuniverse.com/forum/tips-techniques-180/226136-large-control-arm-bellcrank-needed.html)

Birddog-RCU 08-12-2002 12:28 AM

Large Control Arm/Bellcrank needed
 
I need a large double sided control horn that can attach to a rod with a set screw. The rod controls the rudder on a 1/4 scale plane and I need to arm to set up a pull-pull system. Where can I find these?

Thanks,

rcpilotsteve-RCU 08-12-2002 03:21 AM

Large Control Arm/Bellcrank needed
 
I know Dubro sells a large servo control horn. Is this what your after?
A long and strong enough horn to connect a rod to! :)

Birddog-RCU 08-12-2002 03:30 AM

Control Arms
 
I guess it can best be described like the double control arm on a servo but for use attached to a rod. I need a larger one to get more leverage for large applications on 1/4 scale planes.

rcpilotsteve-RCU 08-12-2002 03:58 AM

Large Control Arm/Bellcrank needed
 
Could you use a brass bar.
Glue up a base for the brass, mount the the brass with a bushing to the base. Run control rods from the Servo to the brass bar. Then from both outer edges of the brass bar connect your pull pull links and run them out to your control horns. Use two 1/4 scale T horns on the control surface, match them back to back instead of using the back plate.
Am I on the right track :)

ProfLooney 08-12-2002 04:03 AM

control arm
 
Try gator rc or nelson hobbies both have unusual control horns etc

Birddog-RCU 08-12-2002 04:04 AM

Control Arms
 
The rod that controls the rudder is internal (for scale look) thus the need for attaching to it. Seems like I've seen these before but just can't remember where. The device would be like a bellcrank but 180 instead of 90 degrees.

rcpilotsteve-RCU 08-12-2002 04:13 AM

Large Control Arm/Bellcrank needed
 
Well I'm way out on this one. Sorry :stupid:
_____________________________________

Jemo 08-12-2002 11:17 AM

Large Control Arm/Bellcrank needed
 
1 Attachment(s)
Is this what you are talking about, this one is from nelson hobbies

Birddog-RCU 08-12-2002 11:47 AM

Control Arm
 
Yes but attached to the other end of the plane... the rudder. It would need a set screw to be able to attach to the rod which accuates the rudder.

Jemo 08-12-2002 12:00 PM

Large Control Arm/Bellcrank needed
 
Do a search for rudder control horns, here's a couple

http://home.earthlink.net/~surelink1...horns_pic.html

www.swbmfg.com

Birddog-RCU 08-12-2002 12:35 PM

Control Arms
 
Thanks for the link but this is not something that attaches to the control surface. The rod that accuates the rudder is internal and looks more like a bellcrank but 180 instead of 90 degrees and uses a set screw to afix itself to the rod.


All times are GMT -8. The time now is 03:59 PM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.