Cessna SkyHawk SP 172S NAV III 2005 Pilot Operating Handbook page 140

CESSNA
MODEL 172S NAV III
CRUISE
(Continued)
SECTION 4
NORMAL PROCEDURES
The Cruise Performance Table, Figure 4-3, shows the true airspeed
and nautical miles per gallon during cruise for various altitudes and
percent powers, and is based on standard conditions and zero wind.
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. The selection of cruise altitude on the basis
of the most favorable wind conditions and the use of low power
settings are significant factors that should be considered on every
trip to reduce fuel consumption.
In addition to power settings, proper leaning techniques also
contribute to greater range and are figured into cruise performance
tables. To achieve the recommended lean mixture fuel consumption
figures shown in Section 5, the mixture should be leaned using the
exhaust gas temperature (EGT) indicator as noted.
CRUISE PERFORMANCE TABLE
CONDITIONS:
Standard Conditions
Zero Wind
75% POWER 65% POWER
550/0 POWER
ALTITUDE
KTAS NMPG KTAS NMPG KTAS
NMPG
Sea Level 114 11.2 108 12.0 101 12.8
4000 feet 119 11.7 112 12.4 104 13.2
8000 feet 124 12.2 117 12.9 107 13.6
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172SPHAUS-03
Figure 4-3
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