CESSNA SECTION 2
MODEL 172R LIMITATIONS
AIRSPEED INDICATOR MARKINGS
Airspeed indicator markings and their color code significance are
shown in Figure 2-2.
Figure 2-2. Airspeed Indicator Markings
POWERPLANT LIMITATIONS
Engine Manufacturer: Textron Lycoming.
Engine Model Number: IO-360-L2A.
Maximum Power: 160 BHP rating.
Engine Operating Limits for Takeoff and Continuous Operations:
Maximum Engine Speed: 2400 RPM.
NOTE
The static RPM range at full throttle is 2065 - 2165 RPM.
Maximum Oil Temperature: 245°F (118°C).
Oil Pressure, Minimum: 20 PSI.
Maximum: 115 PSI.
MARKING
KIAS
VALUE
OR RANGE
SIGNIFICANCE
White Arc 33 - 85
Full Flap Operating Range. Lower
limit is maximum weight V
S
0
in
landing configuration. Upper limit is
maximum speed permissible with
flaps extended.
Green Arc 44 -129
Normal Operating Range. Lower limit
is maximum weight V
S
1
at most
forward C.G. with flaps retracted.
Upper limit is maximum structural
cruising speed.
Yellow Arc 129-163 Operations must be conducted with
caution and only in smooth air.
Red Line 163 Maximum speed for all operations.
Revision 7 2-5
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