Well I can't speak for everyone, but metal lines tend to stay where they are, and look cleaner and generally weigh less, I use a combonation of the two, where I need flexiblity or there will be alot of vibration I use steel braided rubber lines (AN fittings of course). I've used barbed fittings in the past and I really hate them, I've had lines slip off, I've had it where (to prevent slip off) i've dug into the rubber, they generally have not been a good clean experence.
Also another note, some of us run EFI systems, and requrie lines that can take more pressure, getting flexible lines running everywhere that can take the pressure, weighs alot more then a simple alumn tube. Plus you are NOT using no barbed end with EFI system, thats like asking for trouble!! Though due to costs I can understand the desire to go barbed. I went AN for even my radiator hose on my BD-4 LOL, got some fittings epoxyed into the radiator and welded on to other fittings of the motor, makes it easy to connect/disconnect the lines. Joe On Sat, Dec 18, 2010 at 5:38 AM, Dene Collett <av...@telkomsa.net> wrote: > Guys > I know this is a contraversal and sometimes touchy subject but I need some > clarity. > There is widespread condemnation of the practise of using barbed fittings > and hose clamps in an aircraft's fuel system plumbing. Could somebody in the > know please tell me why this is so. I can't think of any reason why using a > good quality reinforced "rubber" hose with fire sleeve over it (forward of > the firewall) would be in any way inferior to using aluminuim piping and AN > fittings. In the event of a mishap and things move around, I can't see how > the solid installation will be superior to the rubber hose as it will not > have near as much flexibility to absorb the movement. I would imagine that > an aluminuim pipe would be much more prone to cracking and leaking when > kinked. > > Over here the practise of using barbed fittings and flexible hose is almost > universal unless you are assembling a RV kit which comes with all the > appropriate AN fittings. > Am I missing something here? > > Regards > Dene Collett > Avlec Projects cc > Port Elizabeth > South Africa > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > -- Jose Fuentes Founding Father (one of and former Vice Prez) of Capital City.NET User's Group Former Microsoft MVP http://blogs.aspadvice.com/jfuentes
