REFLECTOR: Exhaust systems

[Pat Shea]

Tom,

Try contacting Alan Shaw directly (www.wingco.com). I
believe he's running an IO-540 in a standard fuselage
Velocity. Alan is a really bright guy w/ lots o'
experience - he should be able to give you some
straight scoop for your application.

Pat 

--- Tom Martino <tmartino@troubleshooter.com> wrote:
> This whole thing is giving me a headache!  I have a
> custom cowling
> (provided by Alan Shaw) with left and right holes
> exiting straight out
> the back.  It was part of his conversion package for
> the IO-540 on the
> 173RG.
> 
> It looks so cool!  Each side has three into one ...
> but it blows right
> through the prop (of course nothing has been fired
> up yet).
> 
> I would hate to change all that!  I was told that
> the way the exhaust
> stacks fit through the exit holes ... creates a "air
> mix" with a jacket
> of air around the exhaust.  Who knows?
> 
> Bottom line:  I don't want to burn a prop!  Does
> anyone have experience
> with this cowling? Will a four-blade prop make a
> difference?
>  
> 
>  
> 
> -----Original Message-----
> From: Mark Means [mailto:rgvelocity@lmf.net] 
> Sent: Thursday, July 10, 2003 6:52 AM
> To: reflector@tvbf.org
> Subject: Re: REFLECTOR: Exhaust systems
> 
> Mike,
> 
> So does this mean 11" is okay or do you have the
> burnt prop problem?
> 
> Did you start closer to the prop and cut it back to
> where 11" is the
> minimum?
> 
> I'm trying to design a custom exhaust and since this
> is a "hot" topic
> wanted
> to find out what the general experience is with
> "minimum acceptable"
> distance to avoid the problem. Thanks for anyone's
> input.
> 
> Mark
> 
> 
> ----- Original Message -----
> From: "Mike Pollock" <m.pollock@verizon.net>
> To: <reflector@tvbf.org>
> Sent: Thursday, July 10, 2003 8:24 AM
> Subject: RE: REFLECTOR: Exhaust systems
> 
> 
> > Ours is about 11 inches from the prop.
> >
> > Mike
> >
> > -----Original Message-----
> > From: reflector-admin@tvbf.org
> [mailto:reflector-admin@tvbf.org]On
> > Behalf Of Mark Means
> > Sent: Thursday, July 10, 2003 6:57 AM
> > To: reflector@tvbf.org
> > Subject: Re: REFLECTOR: Exhaust systems
> >
> >
> > Some are talking about longer prop extensions
> solving the problem but
> if
> one
> > is using a different exhaust scheme this doesn't
> help define what we
> really
> > need to know.......  is there any consensus on how
> far the prop needs
> to
> be
> > from the pipe to avoid burning? Thanks.
> >
> > Mark Means
> >
> >
> > ----- Original Message -----
> > From: "steve korney" <s_korney@hotmail.com>
> > To: <Reflector@tvbf.org>
> > Sent: Thursday, July 10, 2003 12:21 AM
> > Subject: Re: REFLECTOR: Exhaust systems
> >
> >
> > > Ronnie wrote:
> > >                   ( both incur the wrath of the
> 1400 degree
> exhaust.)
> > >
> > >
> > >
> > >
> > > Ronnie...
> > >
> > > The exhaust is only 1400 (f) at the probe...It
> cools rapidly as it
> gets
> > > further from the exhaust valve...
> > >
> > >
> > > Best... Steve
> > >
> > >
>
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> 
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