Dustin,
That is true, however by 400 degrees every flexible line is already toast. BTW you can put firebraid on an aluminum line too.
Bill Jepson
Sent via DROID on Verizon Wireless
-----Original message-----
From: Dustin Lobner <dmlobner@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Wed, Feb 2, 2011 14:22:43 GMT+00:00
Subject: [FlyRotary] Re: Al Tubing in fuel line...
It melts that high, but has lost most of its strength significantly before that (400 degrees, depending on your definition of "significantly"). Dustin On Wed, Feb 2, 2011 at 1:45 AM, wrjjrs@aol.com <wrjjrs@aol.com> wrote:
Ok guys I can understand the concern with fatigue in a vibrating section, but even a stainless steel braided line will at best have a teflon inner tube. That is good to about 325 degrees. Aluminium melts at what, about 1200-1300 degrees. If you do use aluminium tubing use the soft annealed stuff and use a flare or compression fitting on the ends. How well you finish the install would probably be more important than the material.
Bill Jepson Sent via DROID on Verizon Wireless-----Original message-----
Well, unfortunately!! :>)
Bill B
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Patrick
Sent: Tuesday, February 01, 2011 6:32 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Al Tubing in fuel line...
Yeah, I try to avoid rubber fuel lines too. Stainless braid, silicone,
fire-sleeved line; call me picky.
And hopefully your firewall is not plastic...!
Ernest Christley wrote:
> Patrick wrote:
>> Bill,
>> I would suggest taking a propane torch to a piece of scrap aluminum
>> (beer can) and a piece of stainless. It may affect your comfort
>> level about aluminum in the engine compartment.
>>
>> Personally, I would never use aluminum fuel line in front of the
>> firewall.
>>
>> Patrick
> If you're going to do that, you might as well include those rubbery
> pieces of fuel line in the test. And remember, you're telling that to
> a guy who has the engine mounted to a plastic airplane 8*)
>
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