Go Back  RCU Forums > RC Airplanes > Questions and Answers
Reload this Page >

Installing push rod tubes

Community
Search
Notices
Questions and Answers If you have general RC questions or answers discuss it here.

Installing push rod tubes

Thread Tools
 
Search this Thread
 
Old 12-16-2011, 08:51 PM
  #1  
bob62
Thread Starter
My Feedback: (28)
 
bob62's Avatar
 
Join Date: Jan 2004
Location: Bay City, TX
Posts: 474
Likes: 0
Received 0 Likes on 0 Posts
Default Installing push rod tubes

Does any one have any suggestion on installing push rod tube in a fiber glass fusealodge that has three bulk heads, before you reach the tail end of the body, we have tried feeding the wire in first and sliding the tube over the wire and that does not work as you can't run the wire in that far. The plane is a AK model Laclair 120
Old 12-16-2011, 09:36 PM
  #2  
Props4ever
 
Join Date: Aug 2005
Location: Mississauga, ON, CANADA
Posts: 4,196
Likes: 0
Received 1 Like on 1 Post
Default RE: Installing push rod tubes

Bob,

It's doable situation, it would great to see couple of pictures from inside the fuselage that shows where and how bulkheads are glued in.

I hope fin and stabilizer are not mounted on the fuse as yet coz that will make things more complicated. I'm surprised that manufacturer short sighted this area altogether!


Sam
Old 12-17-2011, 12:10 AM
  #3  
DGrant
My Feedback: (4)
 
DGrant's Avatar
 
Join Date: Dec 2001
Location: Clovis, CA
Posts: 2,194
Received 30 Likes on 27 Posts
Default RE: Installing push rod tubes

First thought that comes to my mind is a brass tube.... which is about the best way to cut holes in wood, and I bet it would decently in fiberglass too.. The length could be the only drawback.. but you might be able to extend it using a dowel, or something., that is if you need too.. don't know... What you do though, is sharpen the inside diameter with an Xaxto blade tip. Just put the tip into the brass tube, and slowly spin it, and you'll see the blade sharpening the tube. That tube sharpened like that will cut through alot of hard wood, and again, I believe it might work on fiberglass.. .. I keep 3 or 4 different size tubes handy for cutting holes in balsa.. they will go very sharp angles.. very cleanly.. I never drill balsa anymore.. and the tubes do go through lite-ply sometimes too.. I hope this helps.
Old 12-17-2011, 06:33 AM
  #4  
Lnewqban
 
Lnewqban's Avatar
 
Join Date: Apr 2007
Location: South Florida
Posts: 4,057
Received 0 Likes on 0 Posts
Default RE: Installing push rod tubes

Look for ideas in these articles:

http://www.airfieldmodels.com/inform...uide/index.htm

http://www.airfieldmodels.com/inform...ings/index.htm
Old 12-17-2011, 07:02 AM
  #5  
bob62
Thread Starter
My Feedback: (28)
 
bob62's Avatar
 
Join Date: Jan 2004
Location: Bay City, TX
Posts: 474
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Installing push rod tubes

Here are pictures
Attached Thumbnails Click image for larger version

Name:	Tr49911.jpg
Views:	15
Size:	96.9 KB
ID:	1701067   Click image for larger version

Name:	Ez82403.jpg
Views:	7
Size:	84.8 KB
ID:	1701068   Click image for larger version

Name:	Xc79441.jpg
Views:	13
Size:	45.2 KB
ID:	1701069   Click image for larger version

Name:	Nh11702.jpg
Views:	12
Size:	42.4 KB
ID:	1701070  
Old 12-17-2011, 09:03 AM
  #6  
DavidAgar
My Feedback: (108)
 
DavidAgar's Avatar
 
Join Date: Dec 2001
Location: Battle Ground, WA
Posts: 5,053
Likes: 0
Received 7 Likes on 7 Posts
Default RE: Installing push rod tubes

It appears that the holes have been drilled already. If the tubes will fit in the holes, I use drill bits that are 24 inches in lenght and sized so the tube will slide over the bits and into the hole. I will then push the bit into the plane and then slide the tube over the top of the bit. It can take some wiggling and jiggling, but it is doable. The brass tubing will work as well as long as you can find long pieces of it the right size. Good Luck, Dave
Old 12-17-2011, 09:07 AM
  #7  
Lnewqban
 
Lnewqban's Avatar
 
Join Date: Apr 2007
Location: South Florida
Posts: 4,057
Received 0 Likes on 0 Posts
Default RE: Installing push rod tubes

The longest rods that are shown in the manual are supposed to reach from the servos' bank to the elevators and rudders.

http://ak-models.com/ARF%20Manuals/L...0%20manual.pdf

Using one of those as a guide, or any longer wire or wood rod of suitable diameter will help insert the plastic tubes into the holes of the formers.

I recommend not using the supplied EZ connector for the elevator servo arm.

See this link:

http://www.airfieldmodels.com/inform...d_linkages.htm
Attached Thumbnails Click image for larger version

Name:	Nl29174.jpg
Views:	7
Size:	65.9 KB
ID:	1701113   Click image for larger version

Name:	Av69477.jpg
Views:	9
Size:	53.1 KB
ID:	1701114  
Old 12-17-2011, 09:17 AM
  #8  
ARUP
Senior Member
 
Join Date: Jan 2007
Posts: 2,343
Likes: 0
Received 1 Like on 1 Post
Default RE: Installing push rod tubes

Ditto on the easy connectors. Don't use them for anything except slingshot ammo.
Old 12-17-2011, 10:12 AM
  #9  
jaka
 
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
Posts: 7,816
Likes: 0
Received 3 Likes on 3 Posts
Default RE: Installing push rod tubes

Hi!
Cannot see the difficulty!? Push the rods in fron behind in the holes that are already made in the formers! There are holes made in the rear part of the fuselage I assume..?
But why not use fishing wire insstead? Much lighter and much easier to install!
Old 12-17-2011, 10:22 AM
  #10  
bob62
Thread Starter
My Feedback: (28)
 
bob62's Avatar
 
Join Date: Jan 2004
Location: Bay City, TX
Posts: 474
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Installing push rod tubes

Reply to all, when all else has failed look around and REGROUP. Cut a 1" by 1' hole behind last bulk head and install. Then add reinforcement to hole and reinstall cut out. Reglass and paint. Its on the bottom and can't be seen. Thanks for all the replys

Bob

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



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.