The volume of fluid doesn't really matter much. The fluid, for all intents and purposes, is incompressible. However the diameter of the line, that makes a huge difference. For a given wall thickness, if you halve the size of the tubing, you're going to end up tubing that's several times more resistant to pressure. (I can't be bothered to do the exact math right now) But the stiffer brakes (read improved braking) comes from the stiffer (to pressure) tubing.
On Wed, Sep 12, 2012 at 9:06 AM, Craig Williams <[email protected]> wrote: > Yes, small line = less volume of fluid to move. I have heard of several > instances of people moving to the 1/8" line and getting much improved > braking. I too will use 1?8" plastic with my Tracy O'brien brakes. > > Craig > www.kr2seafury.com > > > > ________________________________ > From: Dan Heath <[email protected]> > To: 'Corvair engines for homebuilt aircraft' <[email protected]>; > 'KRnet' <[email protected]> > Sent: Wednesday, September 12, 2012 4:29 AM > Subject: KR> What material for lines from the toe brake masters to the brake? > > Joe, > > I have Matco brakes and master cylinders. I use 1/8" plastic line that I > got from Matco, for the entire installation. My plane is fast and I have to > brake hard often. This is a replacement installation, so I got lucky. The > old installation used 1/4" line, and I was able to feed the new line all the > way from the Master to the Slave. This can come in real handy if the line > ever needs to be replaced. So, this is a hint to install the 1/4" line > first as a conduit for the 1/8" line, if you decide that is the route you > want to take. > > Another interesting thing is that with the old type installation, which I > had on this KR and my first KR, I could not hold the plane during run-up. > Now that is not a problem. I think the 1/8" line does not expand like the > 1/4" did. > > See N64KR at http://KRBuilder.org - Then click on the pics > See you at the 2012 - KR Gathering in Mt. Vernon, Il ? MVN ? 40th > Anniversary > There is a time for building and it is over. > Daniel R. Heath - Lexington, SC > http://www.krbuilder.org/MyUSA/ > > > _______________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html > _______________________________________ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html
