REFLECTOR: Aileron Cables(Fire-sleeving)

[Laurence Coen]

All,

Fire-sleeving will work on things like liquid carrying lines, (oil and 
fuel), because the liquid flow cools the line and the fire-sleeve slows the 
transfer of heat into the line.  Putting it on the aileron cables will slow 
the melt-down but not prevent it.  Using a heat shield is a better solution.

Larry Coen
N136LC

----- Original Message ----- 
From: "Keith Hallsten" <KeithHallsten at quiknet.com>
To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
Sent: Monday, April 09, 2007 3:19 PM
Subject: Re: REFLECTOR: Aileron Cables


> About year 2000 it was determined experimentally (at the moment I forget 
> by
> who) that the original aileron push-pull cables could seize if overheated
> (by say, an exhaust leak) in flight.  [The plane was landed successfully
> with rudders alone.]
>
> This got the collective attention of the reflectorites and a bunch of us
> went in on a group buy of higher- temperature-rated push-pull cables.  At
> that time it was also emphasized by all that we should be fire-sleeving 
> the
> portion of the cables that is on the engine side of the firewall.  I 
> believe
> that Velocity subsequently began providing a higher temperature-rated
> push-pull cable for their kits, but I'm not sure about that.
>
> I don't know if anyone tested the original push-pull cables with 
> firesleeve
> in a fire or major exhaust leak (no one wanted to volunteer), so it's not
> known whether that is sufficient.  You could be that volunteer and let the
> rest of us know how it works out!
>
> Keith Hallsten
>
>
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
> Behalf Of lawrence epstein
> Sent: Monday, April 09, 2007 4:37 PM
> To: reflector at tvbf.org
> Subject: REFLECTOR: Aileron Cables
>
> I know that years ago it was determined that the Aileron push-pull cables
> had to be fire sleeved on the engine side of the firewall. I have the
> original cables. Do these need to be replaced entirely, or can I just put
> fire sleeve over them?
>
> Larry Epstein
>
>
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