In rec.aviation.owning wrote:
: That's pretty good! Over the last 15 or so flight hours, I've been
: doing similar testing on my Cherokee 180 and I haven't been able to
: break the 6 gph barrier. At 2100 rpm @ 7,500 ft and 105 mph I averaged
: 6.1 gph. At lower power settings the higher angle of attack was
: negatively affect my CHT.

: John Galban=====N4BQ (PA28-180)

As Aaron said, some/all carb heat can help. Also, at high enough altitude to
run WOT, I'll pull about 1/4" MP back to cock the throttle plate a bit. (Yes, we have
a MP gauge in a fixed-pitch plane). Both of those will even out the EGTs and allow a
leaner mixture.

Just as an addendum to my 65% 7000'-8000' post... running carb heat reduces
that altitude even more....

-Cory


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* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
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