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Subject:Re: Oscillating RPM Fixed
From:Daniel Grunloh
Date:Wed Nov 01 12:51:17 2000
In article <0UWL5.1031$6b7.19873@vixen.cso.uiuc.edu>,
grunloh@uiuc.edu (Daniel Grunloh) wrote:
>In article <3A00035C.57ED@trikite.com>, Mark Smith wrote:
>>Richard Lamb wrote:
>>>
>>> Dont mean to show an attitude,
>>> but I wont fly a 2 stroker without
>>> an EGT. CHT really only tells you
>>> that the fan belt is intact.
>>
>>
>>Not to be the second smarty pants but,,,,,,,,,,,
>
>,,,snip
>
>>you may want to rethink your statement, and Ill bet your primary
>>experience was with racing two strokes, not flying them,,,,,,,,,,
>
>
>I doubt if he will rethink his statement since it represents
>the majority view of ultralighters everywhere.


I gotta admit though that I flew a free air 277 about 200 hours
without an EGT or CHT. I never could find a satisfactory
vibration free mounting. However, I left the probes in place
so I could check the temps when needed. I carried the instruments
along (in my lap) on test flights and anytime I did any
maintenance, changed the prop or whatever.

Now I have both all the time on my 447 and at least it provides
a little assurance that all is probably OK when I hear a burb
or miss. I feel the CHT is a must for fan cooled engines.

I need the EGT too myself now that I have an inflight adjustable
needle. It keeps me from going the wrong way when adjusting for
altitude or temperature. :-)


--------------
Daniel Grunloh (grunloh@uiuc.edu)
http://www.staff.uiuc.edu/~grunloh


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