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  #1  
Old 03-29-2018, 09:10 PM
mciaglia mciaglia is offline
 
Join Date: Jun 2012
Location: Houston, TX
Posts: 129
Default Fuel Lines & Brake Lines

I am getting ready to tackle the brake and fuel lines. I know some people have upgraded to stainless steel lines from Bonaco / TS Flight etc..

Do most people just forget spending the time making the solid lines and order SS?

Is it better to spend the time fabricating the solid lines so they can be used to determine the lengths for the stainless steel?

Kinda exciting moving into something other than airframe assembly and working on systems.


Thanks in advance
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  #2  
Old 03-29-2018, 09:30 PM
Kyle Boatright Kyle Boatright is offline
 
Join Date: Aug 2005
Location: Atlanta, GA
Posts: 3,326
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Most people use the stock aluminum lines. They take 5-10 minutes each to fabricate and are identical to similar lines on many certified aircraft. They are also lighter and less expensive than the SS lines.

I suspect you'd spend almost as much time spec'ing out and ordering SS lines as you would spend making the stock ones.
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  #3  
Old 03-30-2018, 04:02 AM
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Auburntsts Auburntsts is offline
 
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Location: Dumfries, VA
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I used rigid tubing in the cabin. For the fuel lines from firewall to tanks I followed the plans except I didn’t use the stock tubing—I upgraded to 5052.

For the brakes I used the stock tubing to the fuse fitting at the landing gear weldment. From there to the brakes outside the fuse I used SS braided line from TSflightlines and highly recommend them (both the company and the lines).
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  #4  
Old 03-30-2018, 05:15 AM
Jasonm Jasonm is offline
 
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Location: KAVL
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Stainless braided lines the entire way from TSFlightlines. Tom was fantastic to work with!!
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  #5  
Old 03-30-2018, 05:51 AM
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DanH DanH is online now
 
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Location: 08A
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Aluminum tube for fixed lines, teflon/SS when connected to anything that moves.
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  #6  
Old 03-30-2018, 06:40 AM
Electrogunner Electrogunner is offline
 
Join Date: Aug 2016
Location: Quarryville ,pa
Posts: 303
Default Flex

Quote:
Originally Posted by DanH View Post
Aluminum tube for fixed lines, teflon/SS when connected to anything that moves.
Ditto on above. I used hardlines in fuselage and used teflon/SS to connect the wing tanks and down gear legs to brake calibers.
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  #7  
Old 03-30-2018, 07:02 AM
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rleffler rleffler is offline
 
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Location: Delaware, OH (KDLZ)
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Quote:
Originally Posted by Jasonm View Post
Stainless braided lines the entire way from TSFlightlines. Tom was fantastic to work with!!
I concur. I couldn't make a decent flare if my life depended on it, so I went with lines from Tom.
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  #8  
Old 03-30-2018, 07:21 AM
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9GT 9GT is offline
 
Join Date: Jan 2010
Location: Southern Michigan
Posts: 1,474
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I preferred to keep it light and fabricated the per plans brake line system in my -10. Use a little lubricant on the burnishing cone of the Parker Rolo-Flair and don't under or over flare.
Page 17 on the link gives an example of acceptable flare dimension.
http://hhh.gavilan.edu/hspenner/iLea...esFittings.pdf
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  #9  
Old 03-30-2018, 09:55 AM
rocketman1988 rocketman1988 is offline
 
Join Date: Jun 2010
Location: Sunman, IN
Posts: 1,071
Default lines

5 -10 minutes for fabricating each line? You must have used the stock soft aluminum...

I opted for 5052 tubing in the tunnel. It took FAR longer than 10 minutes per line but then again the 5052 tubing is more rigid...

If I built another airplane, I would just have the SS hoses made. A whole lot less hassle and pretty much guaranteed not to leak.

That being said, I would give a great recommendation to Tom at TS Flightlines...
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  #10  
Old 03-30-2018, 10:35 AM
DRMA DRMA is offline
 
Join Date: Jan 2016
Location: Sugar Land, TX
Posts: 243
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Mark -
I fabricated the lines per the Van's plans with the Van's provided tubing. It took a couple of attempts to get the fuel lines in the tunnel right, but I had enough tubing to do this. While it took a lot more than the 15 minutes another builder estimated, in the end they came out well and hopefully won't leak once I finish the build.

I figure I can always switch to pre-fabricated or flexible lines in the future if I have problems, so decided to start out per the plans. I've invested enough time and $ on other additions/changes to the base plans and figure I have to limit the changes if I want to complete the project.
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