REFLECTOR: main gear brake lines

[Rene Dugas]

I agree with the stuff through the prop.  I terminated the outer tubing
about 4 inches above the brake fitting.  I treaded the nylaflow through
a section of 3/8th inch aluminum tubing that was flared on each end but
not attached to anything.  My thought was:  easy to remove, metal to
protect nylaflow from heat and rocks, large enough to allow air down
through it to cool it and easy to lift 1/2 inch to see and tighten the
fitting on the caliper.  Has worked well for 4 years.
Rene'  

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Jack Sheehan
Sent: Thursday, February 08, 2007 1:59 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: main gear brake lines

I also ran the nylaflow inside a tube but terminated the nylaflow at the
bottom
of the gear leg and used a braided line from there to the brake. Thought
about
stuff hitting it on the runway and the heat from the brake. No 
problems 600 hours flying.
Oh Yeah!  The stuff on the runway never hits the gear it is always 
too busy going through
the MT prop.
Jack
N55XL
Race 55

At 11:11 PM 2/7/2007, you wrote:

>Not even close to flying yet but I probably bought the same cloudy
tubing
>Rene used.  It is 3/8" OD 1/4" ID polyethylene tubing from HD (very
cheap
>and light).   I used it as conduit to guide the NylaFlow from the gear
>bulkhead to the bottom of the main gear.  I used hot glue to keep it in
>place and glassed over them.
>To minimize heat transfer, I plan to cover the NylaFlow with Viton
tubing
>and fiberglass sleeving between the conduit exit at the bottom of the
main
>gear leg and the caliper fitting.
>
>http://members.dslextreme.com/users/jbujanda/Construction_files/mgcondu
it1.J
>PG
>http://members.dslextreme.com/users/jbujanda/Construction_files/mgcondu
it2.J
>PG
>http://members.dslextreme.com/users/jbujanda/Construction_files/mgcondu
it3.J
>PG
>
>Jorge
>
>
>
>-----Original Message-----
>From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>Behalf Of Rene Dugas
>Sent: Wednesday, February 07, 2007 4:11 PM
>To: 'Velocity Aircraft Owners and Builders list'
>Subject: Re: REFLECTOR: main gear brake lines
>
>I used a cloudy white tubing from Home Depot.  I do not remember the
>size.  I carried a piece and slipped the nylaflow through to confirm
the
>passage.  Has worked well and is still movable at 450+ hrs flying.
Plan
>to replace the nylaflow at 5 yr annual this winter.  I covered mine
with
>glass and I have not upgraded to the carbon.  I have pulled the gear
>door attachment point off the gear leg once on a VERY hard landing at a
>fishing camp in North Arkansas on a turf strip.  I repaired it with
>epoxy two years ago.
>
>Rene'
>
>-----Original Message-----
>From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>Behalf Of Scott Derrick
>Sent: Wednesday, February 07, 2007 9:18 AM
>To: Velocity List
>Subject: REFLECTOR: main gear brake lines
>
>I'm starting the process of beefing up my main gear legs with carbon
>fiber wraps and wanted to ditch the externsl stainless covered rubber
>brake lines in favor of embedded nylo-flow lines as per the manual.
>
>Questions:
>
>I have 3/16 nyla-flow running to the firewall from the master
>cylinders.  Would it be bad to run 1/8 line down the legs.  I can't
>imagine that would restrict the flow during application all that much.
>
>Also I would like to do the soda straw technique or some other way of
>building a tube in the leg for the nyla-flow to be inserted into so it
>could be changed out easily if needed.  Any great ideas on how to do
>this with ease?
>
>Scott
>
>--
>
>-
>     The antidote for misuse of freedom of speech is more freedom of
>speech.
>
>     Molly Ivans
>
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