Thanks for the observation guys. The tubing I used is from AS&S part number 05-12488. This is NSR tubing rated for 2120 lb burst pressure with a wall thickness of .050 and recommended for use with hydraulic brake lines. It has a minimum bend radius of one inch. It is also rated for flexural fatigue and vibration. It will not become brittle and is self extinguishing. I agree with Mark L on his comment on the angle and a pressure test will be conducted before putting that in use. I had already put that on my list prior to this email. On my previous KR the tubing I used was standard 1/4 Poly-flo tubing and I never had a leak with it. I would be more concerned using either steel or aluminum in this application due to the constant movement between the caliper and the gear leg causing a crack in the tubing since neither are flexible.
Mark Jones (N771MJ) Oldsmar, FL flyk...@gmail.com www.flykr2s.com On Wed, Mar 6, 2019 at 9:16 AM Mark Langford via KRnet <krnet@list.krnet.org> wrote: > Larry Flesner wrote: > > > I saw in one photo where you have "plastic" brake line running from the > > gear leg to the caliper. I've heard of incidents where the brakes get > > hot enough, when used for steering, to soften the line and have it blow > > out. You might want to consider a metal loop. > > Aluminum brake lines down there do make a lot of sense, and might have > better bend radii to do a loop or something...worth a try. One of those > lines has a pretty severe angle on it where it enters the fitting. > That'll teach you to post photos! > > I will say that I have something like 4000 landings between my KR2S and > KR2, both with Nylaflow lines, and I haven't had a problem. I often do > 6-10 touch and goes at a time, but I'm sure they cool off between > landings. > > Mark Langford, Huntsville, AL > ML "at" N56ML.com > www.N56ML.com > > > > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
