National Aeronca Association Bulletin Board

I was just thinking of replacing my aluminum pitot and static lines with either Nylo-seal NNR or Poly-flo tubing. From my reading of the catalog, I think that Poly-flo tubing is approved for certificated aircraft but I'm not sure of the Nylo-seal tubing. There's a small price difference and Nylo-seal is approved for 1500psi and Poly-flo is 400 psi. Is it acceptible to replace the aluminum tubing with one or the other plastic tubings? My thinking is that it might be a little easier to work with and have a small weight savings. Thanks, Jim

If the part, or in this case a product is PMA'd or TSO'd, then it can be used on any Certified airplane. IF I had to choose between the two, I'd go with the Poly-Flo because it's a bit more flexible. The Nylo-Seal tends to be stiff and hard to bend.

nkh

Thanks Nathan, I called the local radio shop and they said that they use Poly-flo tubing for their pitot static lines. The info about which bends easier is also very helpfull. Jim