|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

10-02-2014, 12:02 PM
|
|
|
|
Join Date: Jul 2014
Location: Meridian, MS
Posts: 75
|
|
Rudder Cables
Should there be any concern on how the rudder cables sit in the bulkhead cable support holes. I just installed my rudder cables and I noticed that when you put a little tension on them the cables rest against the sides of the plastic bushings. Looks to me that the cables are going to rub right through the plastic bushings. I?ve seen in Cessna?s that they use a pulley system to make sure the cables don?t rub. I know that the tension on the cables are not going to be all that tight but surly all that rubbing and grinding can?t be good.
__________________
Waylon
RV-14A Kit S/N 140175
Ordered Empennage Kit on 8-01-14
Ordered Wing Kit on 6-24-15
Reserved Tail# N814WB
|

10-02-2014, 12:05 PM
|
 |
|
|
Join Date: Jan 2005
Location: Auburn, WA
Posts: 668
|
|
That's the way all RV's have been done since day 1. If you ever actually started sawing through the bushing you could simply rotate it on the next annual inspection, or easily replace them. It's a tradeoff of complexity, cost and weight to have pulleys all over the place, vs something simple, light and cheap (a plastic bushing).
__________________
Andy Karmy
Covington WA
RV-8 - Flying!
RV-9A - sold
Dec 2019 Paid
|

10-02-2014, 12:26 PM
|
 |
|
|
Join Date: Mar 2005
Location: Dallas area
Posts: 10,768
|
|
I've inspected a lot of RVs with over 1,000 hrs. and never seen a problem.
Those snap bushings are tuff!
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
|

10-02-2014, 12:30 PM
|
|
|
|
Join Date: Jan 2005
Posts: 3,646
|
|
A lot of builders have used double bushings. I think Vans even wrote this up in an old RVator. Find the size bushing that snaps inside the plans-specified bushing. You'll have to split one side of the small bushing so it can be snapped over the cable first.
Still, the bushings and the rudder cables should be annual inspection items.
Hope this helps.
__________________
Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto
Donation reminder: Jan. 2021
|

10-02-2014, 12:31 PM
|
 |
|
|
Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,156
|
|
We are approaching 1500hrs and haven't worn through one yet. I actually doubled mine up with a bushing inside a bushing. Just had eyeballs on them last week. However, it was finally time to rotate the rudder cable exit tubes a quarter turn.
__________________
Scott Card
CQ Headset by Card Machine Works
CMW E-Lift
RV-9A N4822C flying 2200+hrs. / Cedar Park, TX
RV8 Building - fuselage / showplanes canopy (Done!)
|

10-02-2014, 12:53 PM
|
|
|
|
Join Date: Jul 2014
Location: Meridian, MS
Posts: 75
|
|
Thanks
That all sounds great. I was just wondering. Thanks again.
__________________
Waylon
RV-14A Kit S/N 140175
Ordered Empennage Kit on 8-01-14
Ordered Wing Kit on 6-24-15
Reserved Tail# N814WB
|

10-06-2014, 04:30 PM
|
 |
|
|
Join Date: Jun 2005
Location: Prescott Valley/Chandler AZ
Posts: 351
|
|
Cert of Airworth
When the FAA looked at my RV9A for certification, there was some interference in the full rudder travel. Mind you, it had full deflection but there was some binding at full right and full left. It turns out that the holes in the quickbuild cockpit were too high on the right side. I drilled a new hole about an inch lower with a backing plate and re-routed the cables. Problem solved.
__________________
John Morgensen
RV-9A N946PM 600+ hours since 2013
Nevada/Arizona
|

10-06-2014, 05:31 PM
|
 |
|
|
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
|
|
Quote:
Originally Posted by JohnInReno
When the FAA looked at my RV9A for certification, there was some interference in the full rudder travel. Mind you, it had full deflection but there was some binding at full right and full left. It turns out that the holes in the quickbuild cockpit were too high on the right side. I drilled a new hole about an inch lower with a backing plate and re-routed the cables. Problem solved.
|
Hmmmmm, that is strange, because the holes for routing the rudder cables through fuselage members are pre-punched (by machine) in the parts and the left and right side parts are actually made from the exact same punched part (they just have the bends formed in opposite directions).
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 01:42 AM.
|