Powerplant Instrument Markings - Cessna 172S Nav III Information Manual

CESSNA
MODEL 172SNAV
SECTION 2
OPERATING LIMITATIONS
POWERPLANT INSTRUMENT MARKINGS
Powerplant instrument markings and their color code significance
are shown in Figure 2-3. Operation with indications in the red rangel
is prohibited. Avoid operating with indicators in the yellow range.
POWERPLANT INSTRUMENT MARKINGS
INSTRUMENT
Tachometer
Sea Level
5000 Feet
10,000 Feet
Cylinder
Head
Temperature
Oil
Temperature
Oil Pressure
Fuel
Quantity
Fuel Flow
Vacuum
Indicator
RED
LINE
(MIN)
—
—
0(1.5
Gallons
Unusable
Each
Tank)
—-
—
RED
ARC
(LWR)
0to20
PSi
....
—
YELLOW
ARC
—
—
0
to 5
Gallons
....
—
GREEN ARC
(NORMAL
OPERATING
RANGE)
RPM
2100 to 2500
2100 to 2600
2100 to 2700
200 to 500°F
100 to 245° F
50 to 90 PSI
5 to 24 Gallons
0to12GPH
4.5 to 5.5
in.hg.
RED ARC
(UPR)
RPM
2700* to 3000
""
245' to
250DF
115* to 120
PSI
—-
—
Maximum operating limit is lower end of red arc.
Figure 2-3
FAA APPROVED
172SPHAUS-03
U.S. 2-7