Do you have fairleads where the cables exit ?
RB
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| Rudder Cables http://thorp18.com/thorpforum/viewtopic.php?f=2&t=7688 |
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| Author: | jrevens [ Fri May 08, 2015 12:02 pm ] |
| Post subject: | Re: Rudder Cables |
dickwolff wrote: ... and now, a DW rant: It boggles my mind that a such fundamental problem can exist on a Primary Flight Control of an 1100 hr. airplane. The rudder not contacting either stop should have been found during the build, the FAA (or DAR) inspection, 30 annual condition inspections, or any of the 100's of pre-flight inspections. Just saying. It boggles my mind too, Dick. |
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| Author: | James Grahn [ Sat May 09, 2015 10:22 am ] |
| Post subject: | Re: Rudder Cables |
Dick, If you need a new 578, I have them in stock. Cubes |
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| Author: | Jeff J [ Fri Jun 16, 2017 9:05 pm ] |
| Post subject: | Re: Rudder Cables |
While poking around my T-18 today I decided I need to change both rudder cables (part 518-1). Is there a source for cables already made or do I need to pull one and get a measurement to have them custom made? Thanks, Jeff |
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| Author: | James Grahn [ Fri Jun 16, 2017 11:19 pm ] |
| Post subject: | Re: Rudder Cables |
I have them already made up. Cubes |
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| Author: | Jeff J [ Sat Jun 17, 2017 7:32 am ] |
| Post subject: | Re: Rudder Cables |
Excellent! I will be contacting you soon. |
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| Author: | jtwigg [ Mon Jun 19, 2017 9:56 am ] |
| Post subject: | Re: Rudder Cables |
Jeff J - why did you decide that you needed to replace your rudder cables? Condition? |
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| Author: | Jeff J [ Mon Jun 19, 2017 2:07 pm ] |
| Post subject: | Re: Rudder Cables |
Big flat spots where they exit the fuselage. I had noticed it when I bought the airplane and chose to blow it off then. Looked at them again while doing other maintenance and decided I should go ahead and get it over with. No point in waiting until the strands start breaking. If you have never looked at the criteria, AC 43.13-1B fig 7-17 has a pretty good drawing (mine match the middle drawing). Fig 7-18 is a black and white picture though it shows a cable past due to be changed. |
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| Author: | Rich Brazell [ Mon Jun 19, 2017 2:12 pm ] |
| Post subject: | Re: Rudder Cables |
Do you have fairleads where the cables exit ? RB
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| Author: | Jeff J [ Mon Jun 19, 2017 3:00 pm ] |
| Post subject: | Re: Rudder Cables |
Yep...doesn't matter, the only places cables wear out is at pulleys and fairleads. Use to have to change rudder cables every other year on an AT-502 because of wear at the fairleads. A local J-3 needs a couple of new cables because of wear where the cables pass through fairleads and/or the fabric. Made a new cable for it last year because an aileron cable was wore bad at a fairlead mid way up the wing strut. The A-10 and U-2 were the same way. Only wear out cables at the fairleads and/or pulleys. The A-10 doesn't have pulleys, just straight runs from bell crank to bell crank with fairleads to keep the cable off the structure. |
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| Author: | Jeff J [ Sun Jul 02, 2017 8:22 pm ] | |||
| Post subject: | Re: Rudder Cables | |||
Cable looked pretty good at first glance. Unfortunately, glancing is not inspecting. The other side was only slightly better.
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| Author: | Jeff J [ Wed Jul 05, 2017 7:56 pm ] |
| Post subject: | Re: Rudder Cables |
dickwolff wrote: ... and now, a DW rant: It boggles my mind that a such fundamental problem can exist on a Primary Flight Control of an 1100 hr. airplane. The rudder not contacting either stop should have been found during the build, the FAA (or DAR) inspection, 30 annual condition inspections, or any of the 100's of pre-flight inspections. Just saying. I shouldn't make this post but I am going to anyway....I find very easy to believe a problem like that can make it that long and go uncorrected. I have seen equally shocking problems on "certified" airframes maintained by trained and "certified" people. That something like something like this can be built into an aircraft and go unnoticed and/or uncorrected on a homebuilt, possibly built by someone with no aviation maintenance experience or systems knowledge and maintained and inspected by that same builder... well... I expect it when there is personal freedom to do what you want without any real oversight. I help people who ask to the best of my ability. I don't know everything, in fact, I know a lot less than I have yet to learn and just because I could pass a couple of tests many years ago isn't proof I am a good mech. I do not hire out to work on homebuilts because of things I have seen. added edit: This isn't meant to imply all amateur built aircraft have severe flaws. Just pointing out that they are amateur built and some people are inclined to do only the minimum required to make something work. "Right" or "wrong" doesn't enter into it but sometimes "scary" does. |
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