SECTION 4
CESSNA
NORMAL PROCEDURES
MODEL 172S NAV III
KAP 140 AUTOPILOT
U.S.
CRUISE
(Continued)
LEANING USING EXHAUST GAS TEMPERATURE (EGT)
(Continued)
EXHAUST GAS TEMPERATURE (EGT)
Figure 4-4*
Operation at peak EGT provides the best fuel economy. This results in
approximately 4% greater range than shown in this POH accompanied
by approximately a 3 knot decrease in speed.
Under some conditions, engine roughness may occur while operating
at peak EGT. In this case, operate at the recommended lean mixture.
NOTE
•
Any change in altitude or power setting will require a
change in the recommended lean mixture setting and a
recheck of the EGT setting.
•
The EGT indicators take several seconds, after a
mixture adjustment, to start to show EGT changes.
Finding peak EGT and adjusting the mixture to the
applicable setting should take approximately one minute
when the adjustments are made carefully and
accurately. Adjusting the mixture quickly is not
recommended.
(Continued Next Page)
MIXTURE DESCRIPTION
EXHAUST GAS
TEMPERATURE (EGT)
RECOMMENDED LEAN
(Pilot’s Operating Handbook)
50°F Rich of Peak EGT
BEST ECONOMY
Peak EGT
172SPHAUS-05
4-38
For
Training
Purposes
Only
Содержание Cessna 172S NAV III Skyhawk SP
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