challgren(at)mac.com
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 Posted: Mon Mar 27, 2006 9:16 am Post subject: Rotax Suppoort |
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Fellow builders:
Paul wrote in response to my question on Rotax support:
"You mention concern about cooling on the Jabiru engine while doing
landings. Do you have any information that this is a problem? Or,
is this just a theory that it might be a problem?"
We had a problem with our early Jabiru 3300 that would run hotter
when flying below 100 mph. Essentially we were restricted from doing
so without modifying our air intake to the engine. Since my 701
would always be in that realm, the repeated power changes might
present a challenge to good cooling. There was a learned treatise on
the subject of shock cooling recently that should be in the
archives. I believe it qualifies as scientific evidence and is not
just a theory. It was a reason for my concern. Pete has indicated
very recently that the latest 3300 will again have bigger cooling
fins which should be a fix to the problem.
I am very open to experience that indicates the 3300 is reliable when
operated a significant portion of the time in the landing pattern.
Stan
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