GrummanDude
Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA
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 Posted: Sun Jul 27, 2014 11:34 am Post subject: CHT: JPI v. EI |
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I've been saying this for at least 20 years.
| Quote: | Cub Crafters just published a DER report this month that compared various
brands of CHT thermocouples to each other. The controlled test show that the
ungrounded thermocouples as used in the Electronics International instruments
were as much as 50 degrees cooler than the grounded thermocouple probes as
used in JPI Alcor and Dynon. We always suspected there was a difference
however I thought the true temperature would be somewhere in between.
This report advises that the EI's are indicating too cold, That might become
a big issue for EI soon. This report is 20 pages long, I don't have a
known link to it, might be available at Cub Crafters.
I have always liked the EI brand, however after reading this report, I have
suspended installing any more EI CHTs until they have a fix, or good evidence
of that their CHTs are reading correctly.
Report Title: CC11 CHT System and Probe Comparison
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[quote][b]
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Gary
AuCountry Aviation
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