Tweet
I am putting together a list of all the nut bolts and such that I need to order before I start skinning my wings. Now I am assuming that everyone is using AN hardware but what kind of AN nuts are people using? Is an AN lock nut enough for the wing hardware or does it need to be safety wired in on every bolt and nut? What are others doing when it comes to this? I never dreamed how much time I would spending debating on what type of nut to use to hold a bolt in but these things are pretty important to get right.
-
-
Aircraft wiring and nuts and bolts are very important. From what I heard is that aircraft nuts and bolts are 10 times stronger than grade 8 at the hardware store. As far as wiring, aircraft wire is more accurate as far as the gauge and it also has more, finer strands as well as corrosion protection. -
I guess I need to redefine my question. I am by no ways meaning that I would not use AN hardware but I hear some people do not. My question is more along the lines of what type of AN hardware? Should the bolts be drilled or not? Should we use Stainless over cadium? Can we just use an AN lock nut or does it need to be a castle nut? For those that have built there wings, what did you use?Comment
-
KyBearhawk,
AN hardware is expected throughout (note, its not 10 times stronger than grade 8, its actually about the same but with some important differences, mostly quality control, thread manufacture etc...). The bolts in the wing run the gamut as far as proper use. For instance the strut brackets are bolted down and torqued, so the bolts do not move. This would be a proper place for a a nylock nut. No safety wire required. This is basically the way you determine what to use. If the bolt is free to turn in assembly (for example, at a pin joint like on the strut to strut backet) then you use a castellated nut and a cotter pin. If the bolt is torqued and not allowed to turn then a nylock nut is appropriate. If it is a hot location like inside the engine compartment, then you don't use nylocks, instead there are all metal lock nuts.
I highly suggest obtaining a couple of good reference books on the subject and on standard aircraft practices in general. Spruce has a bunch of them and so does the EAA.
Enjoy the education, it never really stopsDavid Edgemon RV-9A N42DE flying RV-8 N48DE flying Patrol #232 N553DE in progress ! Plans built.Comment
Comment