Just took off the magnesium aileron attach brackets that attach to the spar. One of them is unusable. It has corroded about 50% through near the rear where the 90 degree little attach brackets were. Anyone have one they would like to sell? Or, barring that, does anyone make them. Haven't been able to find one. A search of the threads here turned up nothing I could find.
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Aileron bracket needed
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Re: Aileron bracket needed
I would recommend switching to the pre war welded steel aileron brackets. I have broken several magnesium ones flying sportsman aerobatics on my clipwing. The new wings have newly made oversize hinges. I make new inboard and outboard hinges but my center hinge is not the same as a stock Tcraft.Eric Minnis
Bully Aeroplane Works and Airshows
www.bullyaero.com
Clipwing Tcraft x3
Flying is easy- to go up you pull back, to go down you pull back a little farther.
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Re: Aileron bracket needed
We have talked about this many times. We need to bite the bullet and make a fixture to make welded aileron hinges and be done with it. The cast hinges are a ticking time bomb and if one breaks and we loose a plane the FAA is going to ground us all again while THEY try and figure out how to fix it, which will probably involve replacing all of the hinges deployed with new useless cast ones at $100 a pop! Let's get the welded ones approved for all planes and get some made so THEY are at least the existing preferred replacement. We can then swap them out at annuals instead of waiting for one of us to get hurt. In the meantime, LOOK AT YOUR HINGES when you are checking your struts for corrosion.
The tribal AD system strike early again!
Hank
Don't forget to let everyone else know what you find if you find bad ones so we can show the FAA WE are being pro-active and don't need for them to come in and "fix" our problem" for us.
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Re: Aileron bracket needed
Make sure that your fabric does not come up to the magnesium casting so that water does not get trapped and life will be better for your brackets.
I other words cut the fabric back from the bracket so that the fabric edge is identical to the hole in aluminum aileron bay fairing.
DaveLast edited by Guest; 05-05-2014, 18:22.
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Re: Aileron bracket needed
Originally posted by Hank Jarrett View PostWe have talked about this many times. We need to bite the bullet and make a fixture to make welded aileron hinges and be done with it. The cast hinges are a ticking time bomb and if one breaks and we loose a plane the FAA is going to ground us all again while THEY try and figure out how to fix it, which will probably involve replacing all of the hinges deployed with new useless cast ones at $100 a pop! Let's get the welded ones approved for all planes and get some made so THEY are at least the existing preferred replacement. We can then swap them out at annuals instead of waiting for one of us to get hurt. In the meantime, LOOK AT YOUR HINGES when you are checking your struts for corrosion.
The tribal AD system strike early again!
Hank
Don't forget to let everyone else know what you find if you find bad ones so we can show the FAA WE are being pro-active and don't need for them to come in and "fix" our problem" for us.
Sure Hank,
I can fabricate them. Just need a drawing. When can we get the drawing?
Dave
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Re: Aileron bracket needed
How about a sample? I could do a drawing, but it would take a while. How do we handle the paperwork? If we go Owner produced the user will have to do part of the work. Do you have PMA to make some? Last way is one of us "finds" a box of NOS parts from the factory. ;-)
I'm thinking we try to leave enough for the buyer to do to qualify for Owner Produced. We need to work out details and I need to dig out one of my tube hinges from the barn to make a fixture from. Probably should use several to be sure we don't make a fixture to reproduce bent hinges. ;-O
Hank
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Re: Aileron bracket needed
Originally posted by Hank Jarrett View PostHow about a sample? I could do a drawing, but it would take a while. How do we handle the paperwork? If we go Owner produced the user will have to do part of the work. Do you have PMA to make some? Last way is one of us "finds" a box of NOS parts from the factory. ;-)
I'm thinking we try to leave enough for the buyer to do to qualify for Owner Produced. We need to work out details and I need to dig out one of my tube hinges from the barn to make a fixture from. Probably should use several to be sure we don't make a fixture to reproduce bent hinges. ;-O
Hank
To do it the easiest way we need a factory drawing to make a replacement part.
Of course there is no PMA or if there was then this discussion would not be taking place.
This seems to be a circular discussion.
Dave
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Re: Aileron bracket needed
The problem is you don't WANT the cast ones. When moisture gets to them they turn to dust. We are talking about reproducing the earlier welded tube assemblies from before the war. They are stronger and more corrosion and crack resistant. The cast ones were a little lighter and MUCH cheaper to make at the time. What we DON'T want is for the FAA to force everyone to replace the cast ones with NEW cast ones. The welded ones are actually probably less expensive and better to make in small numbers now. I have PLENTY of the cast ones for making a drawing. Just use the front of one with a corroded back and another with a corroded front to draw the back. Problem is we don't WANT the cast ones. I know there is a complete set of hinges for my 45 in storage, I just need to dig them out and either draw them or get them to someone who can copy them. I will post photos as soon as I find them.
Hank
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Re: Aileron bracket needed
Originally posted by Hank Jarrett View PostThe problem is you don't WANT the cast ones. When moisture gets to them they turn to dust. We are talking about reproducing the earlier welded tube assemblies from before the war. They are stronger and more corrosion and crack resistant. The cast ones were a little lighter and MUCH cheaper to make at the time. What we DON'T want is for the FAA to force everyone to replace the cast ones with NEW cast ones. The welded ones are actually probably less expensive and better to make in small numbers now. I have PLENTY of the cast ones for making a drawing. Just use the front of one with a corroded back and another with a corroded front to draw the back. Problem is we don't WANT the cast ones. I know there is a complete set of hinges for my 45 in storage, I just need to dig them out and either draw them or get them to someone who can copy them. I will post photos as soon as I find them.
Hank
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Re: Aileron bracket needed
Originally posted by Hank Jarrett View PostWe have talked about this many times. We need to bite the bullet and make a fixture to make welded aileron hinges and be done with it. The cast hinges are a ticking time bomb and if one breaks and we loose a plane the FAA is going to ground us all again while THEY try and figure out how to fix it, which will probably involve replacing all of the hinges deployed with new useless cast ones at $100 a pop! Let's get the welded ones approved for all planes and get some made so THEY are at least the existing preferred replacement. We can then swap them out at annuals instead of waiting for one of us to get hurt. In the meantime, LOOK AT YOUR HINGES when you are checking your struts for corrosion.
The tribal AD system strike early again!
Hank
Don't forget to let everyone else know what you find if you find bad ones so we can show the FAA WE are being pro-active and don't need for them to come in and "fix" our problem" for us.
Hank,
I have been asking questions hoping to focus in on some things but to save time let me tell you why I am asking.
You are regional representative of the Taylorcraft Foundation according to a note that I read sometime back that Forrest sent.
Now you as a Regional rep are saying (see colored text above) that you have been aware for some time that we have an airworthiness issue that will or can result in loss of life.
What are you going to do about it? You have to turn it over to the FAA if it really is an issue.
If you don't make the FAA aware and it results in loss of life then you and the Foundation should have your pants sued off using this thread as evidence.
At the very least have a special airworthiness information bulletin (SAIB) issued and possibly an AD with an AMOC that includes the prewar drawing so that folks can fabricate a replacement.
If this Foundation is not capable of such a simple action in the face of this "ticking time bomb" then that is really bad.
Now if you say well its not that its not really an airworthiness issue that can result in loss of life then I will say be careful of what you post and think twice before you do so.
Offered without malice or emotion, Dave.Last edited by Guest; 04-21-2014, 10:54. Reason: changed "are" to "have been" and "not that bad" to "an airworthiness issue that can result in loss of life"
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