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Posted for "cblitzer" <cblitzer@triad.rr.com>:
Two stupid questions this time:
1 -is Nylock the same stuff as Nyla-Flow?
2 - so much time and effort on the brake lines, I don't remember anyone ever
asking if there has there ever been a know or reported failure of Nyla-Flow
that Lancair sells with the kits ?
Craig Blitzer
Just a thought or two, after talking with DH Engineer, Mike Montgomery, their connection nuts are 9/16" across the flat and right at 5/8" across the corners. It takes a 5/8" hole to get the nut thru. The Nylon/Kevlar/Nylon line itself is 4.9 mm O.D.-- 2.0 mm I.D. It is crimped hydraulically and swedged at its tip onto the mandrel. No way to do this in the field. DH will do a Swedgelok (sp?) end, will not test it and its still a bit more that 1/4" on the upset. SOOO for a bunch us with the Nylok tuning ( and shiethed in 0.132" O.D. Tygon or other) it's time to consider something else.. The guys at Lancair still recommend the Nylok and mine has been well shiethed and in service for 19 years. So, group what else is there ??? AOG Don Skeele N320J
[I could be wrong, but I think Don simply interchanged two trade or brand names when he posted his message.... Generally, "Nylock" is the term (likely a brand name, you know, like "Kleenex" for tissue) used to identify a general purpose self-locking nut, the kind that employs a nylon insert to engage the threads and keep the nut from vibrating off on its own. "NylaFlow", OTOH, is another brand name for the plastic tubing that is receiving so much attention. I don't even know if the stuff actually has a nylon component, I always thought it was made from one of those polyethylene or polypropylene compounds, but I'm not a chemist, so that is conjecture on my part.
As for tubing failures... there have been a number of them reported over the years, some resulting in substantial damage due to uncontrollable runway excursions. They are, I am sure, partly responsible for Brent Regan's steadfast and vocal position against the use of "aquarium tubing" for something as important as a brake line. I am pretty sure there are even present LML members with first-hand experiences.
<marv> ]
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