Safety wiring
Mr. Spackled...I could sit here all day writing about the proper way to safety wire and it would do no good. To do it correctly requires practice. I did give two sources for how to do it right. There was no need to insult me.
That said, the previous post does illustrate the proper way to safety wire. The OP said the bolts were drilled only on one side. That is not unusual. The procedure is the same, just as has been said. If one bolt begins to loosen, it will tighten the saftey wire and can not loosen any more. The other problem with the safety wire in the photo is the number of twists on the wire between the bolts. The photo is very clear showing this. If there are not enough turns, the wire will stretch. If there are too many, the wire will be under too much tension and will be prone to break. The proper number of twists varies with the diameter of the safety wire. Again, the FAA procedure book AC43-13 1A and 2 gives these requirements.
I also stated what another post said...I've never seen a properly torqued fastener come loose, provided there is no problem with the assembly that the fastener is holding together. He is 100% correct in his statement.
I do not post anything giving advice or opinions on a subject I know nothing about. As the military A/C mechanic said, I, too, have spent years working on aircraft. My work was limited to agricultural airplanes with a total rebuild of a crashed 1959 Piper PA-18A (a Super Cub designed to be a crop duster also) and have built a Van's Aircraft RV-6.
Mr. Spackled, I believe the you have the better idea...Clean threads, good undamaged fasteners, and Blue Loctite. That is all you need. I was just trying to help someone avoid doing it wrong and having an needless failure on down the road.
You are doing a great job with your restoration. I'm sure it will give you many trouble free miles of enjoyment.
Mr. Spackled...I could sit here all day writing about the proper way to safety wire and it would do no good. To do it correctly requires practice. I did give two sources for how to do it right. There was no need to insult me.
That said, the previous post does illustrate the proper way to safety wire. The OP said the bolts were drilled only on one side. That is not unusual. The procedure is the same, just as has been said. If one bolt begins to loosen, it will tighten the saftey wire and can not loosen any more. The other problem with the safety wire in the photo is the number of twists on the wire between the bolts. The photo is very clear showing this. If there are not enough turns, the wire will stretch. If there are too many, the wire will be under too much tension and will be prone to break. The proper number of twists varies with the diameter of the safety wire. Again, the FAA procedure book AC43-13 1A and 2 gives these requirements.
I also stated what another post said...I've never seen a properly torqued fastener come loose, provided there is no problem with the assembly that the fastener is holding together. He is 100% correct in his statement.
I do not post anything giving advice or opinions on a subject I know nothing about. As the military A/C mechanic said, I, too, have spent years working on aircraft. My work was limited to agricultural airplanes with a total rebuild of a crashed 1959 Piper PA-18A (a Super Cub designed to be a crop duster also) and have built a Van's Aircraft RV-6.
Mr. Spackled, I believe the you have the better idea...Clean threads, good undamaged fasteners, and Blue Loctite. That is all you need. I was just trying to help someone avoid doing it wrong and having an needless failure on down the road.
You are doing a great job with your restoration. I'm sure it will give you many trouble free miles of enjoyment.
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