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Subject: RE: [FlyRotary] Re: 20B exhaust (so far)
Date: Wed, 2 Mar 2005 11:58:01 -0800
Message-ID: <091A2D42FAF91A41B84750D269FC97E72B3127@canformail1.canfor.ca>
Thread-Topic: [FlyRotary] Re: 20B exhaust (so far)
Thread-Index: AcUe56hU3QPUUineQvSnJU5HXfL+rAAcmQTQ
From: "Bartrim, Todd" <Steve.Bartrim@canfor.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>,
        "kevin lane" <n3773@comcast.net>

Hi Kevin;
	My exhaust didn't work out exactly as I'd envisioned it and as a
result the pipe is almost touching 2 of my mount struts where it passes
between them. I was quite concerned about heat damaging the mount, so I
kept a very close eye on this area. However it really hasn't been an
issue. The paint on the mount hasn't discoloured at all so I haven't
been too concerned, however I still check it often. When I first
received the EM2, I attached one of my spare CHT thermocouples to the
mount to monitor it and while I can't recall the temp, I know it was low
enough that I stopped worrying about it. I should've logged it.

Todd=20


this is a good point and I admit to have not thought it through yet.  I
have made two engine mount plates so far because the first one had the
exhaust almost touching the exhaust, maybe 1/8" clearance.  I will have
to come up with some type of shield however.  I hope, also, to introduce
some fresh air flow over them also.
Kevin Lane  Portland, OR

>
> I'm curious if you're planning some kind of heat shield for that mount

> strut that runs between the exhaust pipes... or maybe several layers
of=20
> exhaust tape... something to keep some of that heat away anyhow?
Looks=20
> scary to me, especially when you consider that those exhaust tubes
will=20
> likely be glowing red at full throttle.  Just a thought.
>
>  <Marv>