Cessna 172 - Page 28

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ENROUTE CLIMB.
CLIMB DATA .
For detailed data, refer to the Maximum Rate-Of-Climb Data chart
in Section VI.
CLIMB SPEEDS.
Normal climbs are performed at 80 to 90 MPH with flaps up and full
throttle for best engine cooling. The mixture should be full rich below
3000 feet and may be leaned above 3000 feet for smoother engine opera-
tion or to obtain maximum RPM for maximum performance climb. The
maximum rate•of-climb speeds range from 91 MPH at sea level to 80
MPH at 10, 000 feet. If an enroute obstruction dictates the use of a steep
climb angle, climb at 75 MPH with flaps retracted.
NOTE
Steep
climbs at low speeds should be of short duration
to i.tl_lprov~ engine cooling.
CRUISE.
Normal cruising is qone at power settings up to 75% pa'we; . The en-
gine RPM and corresponding fu.el consumption for .. vari _ous· aititudes can be
determined by using your Cessna Power Computer or the operational Data
in Section VI. ··-
The Operational Data in :Section VI shows th ~ increased fange and im-
proved fqel econo~y that is ' obtainable when oper<;iting at lo ~ er power · set-
tings and higher altitudes. The use of lower power settings and the selec-
tion of cruise altitude on the basis of the most favorable wind e' conditions
are significant factors that should be considered on every t rip to ~e_duce
fuel consumption.
The Cruise Performance table on the following page shows the true
airspeed and miles per gallon d~ring cruise for various altitudes and ·
percent powers. This table should be used as a guide, along with the
available winds aloft information, to determine the most favorable altitude
and
power setting for a given trip.
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