Textron 172R180HP, Pilot Operating Handbook

Page: 49 / 396

CESSNA
MODEL 172R (180 HP)
SECTION 2
LIMITATIONS
AIRSPEED INDICATOR MARKINGS
Airspeed indicator markings and their color code significance are
shown in Figure 2-2.
KIAS
MARKING VALUE SIGNIFICANCE
OR RANGE
White Arc
40 - 85
Full Flap Operating Range. Lower
limit is maximum weight
V so
in
landing configuration. Upper limit is
maximum speed permissible with
flaps extended.
Green Arc
48 -129 Normal Operating Range. Lower
limit is maximum weight
Vs
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.
Figure 2-2. Airspeed Indicator Markings
POWERPLANT LIMITATIONS
Engine Manufacturer: Textron Lycoming.
Engine Model Number: 1O-360-L2A.
Maximum Power: 180 BHP rating.
Engine Operating Limits for Takeoff and Continuous Operations:
Maximum Engine Speed: 2700 RPM.
NOTE
The static RPM range at full throttle is 2300 - 2400 RPM.
Maximum Oil Temperature:
Oil Pressure, Minimum:
Maximum:
Oct 4/01
245
°
F (118
°
C).
20 PSI.
115 PSI.
2-5