Textron Cessna C172S PIM, Pilot Operating Handbook

Page: 55 / 322

CESSNA SECTION 2
MODEL 172S NAV III OPERATING LIMITATIONS
GFC 700 AFCS
U.S.
FAA APPROVED
AIRSPEED INDICATOR MARKINGS
Airspeed indicator markings and their color code significance are
shown in Figure 2-2.
AIRSPEED INDICATOR MARKINGS
MARKING
KIAS VALUE OR
RANGE
SIGNIFICANCE
Red Arc* 20 - 40 Low airspeed warning.
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 V
S1
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.
*G1000 airspeed indicator only.
Figure 2-2
172SPHBUS-00 2-5