REFLECTOR: Brake Line Heat Shield

[nmflyer1 at aol.com]

Andy, 

Well, I'm in the same place and I see your point. I think I'll use the heat shield that I mentioned from Summitt. If I leave the top of the shield open, it should let out some of the heat that is transferred from the caliper, and shield it from transfer from the disc. Sound like a good WAG?? :) 

kurt


-----Original Message-----
From: Andy Millin <amillin at sbcglobal.net>
To: 'Velocity Aircraft Owners and Builders list' <reflector at tvbf.org>
Sent: Sat, 21 Jun 2008 2:40 pm
Subject: REFLECTOR: Brake Line Heat Shield




Kurt,

I'm not an engineer.  :)

Are you sure about heat shield on the exposed nylaflow?

If the heat is transferring from the caliper to the nylaflow (direct contact
via the connection), then the heat shield might act as an insulator.
Possibly exacerbate the situation.

If the heat is transferring from the rotor via the air, then the heat shield
might be the right thing.

Then again, I might not even understand what you are proposing.

I'm not flying or taxiing, so I don't have the experience with it.

FWIW,

Andy

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of NMFlyer1 at aol.com
Sent: 06-20-2008 11:58
To: reflector at tvbf.org
Subject: Re: REFLECTOR: Brake Lines

Al, 
 
I like your install! 
I talked with the factory yesterday and explained my predicament. My brake
lines that came with the kit were about 2 feet short. This could be due to
how I ran the rudder conduit when I built my own wings... but no big deal. I
mentioned that I just wanted to make sure I had the right mix of parts.
 
The factory has the type "H" nylaflow. The wall thickness is about twice
that of regular nylaflow. Unfortunately, the catalogs do not offer type "H"
and some don't specify what it is at all. That is how I ended up with a roll
of type "T". 
 
Since I have already buried a brake line conduit in my V,  I have decided to
stick with the factory method. 
Seems like that works just fine for 95% of folks. I do plan on installing
Summit Heat shield to the tubing where it is exposed. I am also wrapping the
lower gear leg (within the wheel pant) with heat reflective tape. 
My theory is that the heat rating of the tape is such, that if it starts to
come undone, I know I have heat issues to attend to. If not, I get a little
extra protection. 
 
I am definitely going to keep some of the recommendations on hand and keep
an eye on things during my ground ops. 
 
I am curious to know if the incident of the Nylaflow popping from the
ferrule was the correct Nylaflow.. or was it a mismatch like I ended up
with. Something to keep an eye on for sure. 
 
By the time I finish the NACA exits in my wheel pants, I should have the new
roll of Nylaflow and can put the brake lines in. 
 
I'm really pleased with my "almost invisible" tire pressure doors that I
made in the whale pants. 
 
Next:  blocking for paint. 
 
 Kurt 



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