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<< Lancair Builders' Mail List >>
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Gentle readers:
The following exchange appeared in the last posting of Lancair Network News:
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Fred and Brent,
Have you guys modified your stances?
-------- Original Message --------
Subject: Fwd: [Fwd: Ceramic engine coatings]
Date: Sat, 30 Oct 1999 18:00:55 EDT
From: DARUS47959@aol.com
To: harryleague@home.com
As you can see from Brent and Moreno, they have significantly modified
their
stances.
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I would never have the audacity to suggest that I speak for Brent, nor would
Brent ever do the same for me. For Zerhbach to speak for both of us as we
await silently for proof I believe suggests a level of enthusiasm that has
washed away any residue of objectivity and, perhaps, integrity on his part.
Mr. Zerbach, please refrain in the future form writing and/or speaking on my
behalf. Such actions clearly cross into the area of impropriety and I am
sure are resented as much by other readers as myself.
So everyone has a clear idea of where I come down in this controversy, let me
summarize:
1) Thus far I have seen NO DATA to support the assertions made about
performance enhancement.
2) I have reviewed some of the NASA tech briefs noted. Moreover, I also
reviewed some of the literature on coatings and literature. I conclude that
this segment of materials science continues to make slow but steady progress
in the form of small incremental improvements that can be used to improve
engine performance, albeit only slightly. Most of this work is done by mixing
materials which are fed through a plasma flame spray gun onto a prepared
surface. The resulting coating is then finished prior to entering service.
This technology is widely available for many types of applications from a
multitude of vendors. It appears that Mr. Zerbach is one of them.
3) My inquiries thus far suggest that what has been promoted as "data" are in
fact testimonials from well meaning customers who in spite of their good
intentions fail my standards of objectivity and good experimental practice.
4) Other extravagant claims of reductions in fuel consumption and engine
performance are, in my opinion, beyond the pale, and wholly unsubstantiated.
I am happy to read and review technical information, and will disqualify
myself if the topic exceeds my competence. However, my competence is
sufficiently extensive to suggest we have an excess of promotional zeal
spilling over onto our forum, and it lacks the standard of objectivity that
we would normally expect of a quality supplier.
Fred Moreno
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