Section 2
Limitations
Columbia 400 (LC41-550FG)
RC050002
Initial Issue of Manual: November 10, 2004
2-4
Latest Revision Level/Date: A/12-01-2004
LIMITATIONS
AIRSPEED LIMITATIONS
The airspeed limitations below are based on the maximum gross takeoff weight of 3600 lbs
(1633 kg). The maximum operating maneuvering speeds (V
O
) and applicable gross weight
limitations are shown in Figure 2 - 1.
SPEED
KCAS KIAS
REMARKS
V
O
Max. Operating Maneuvering Speed
2600 Pounds Gross Weight
2600 Pounds Gross Weight @ FL250
3600 Pounds Gross Weight
3600Pounds Gross Weight @ FL250
*Decrease 3 knots for each 1000-ft above
12,000 feet (Press. Alt.)
138*
96
162*
123
135*
93
158*
120
Do not apply full or abrupt control
movements above this speed.
V
FE
Maximum Flap Extended Speed (Down or
40
O
Flap Setting)
*Decrease 2.4 knots for each 1000-ft
above 12,000 feet (Press. Alt.)
120*
117*
Do not exceed this speed with full flaps.
Takeoff flaps can be extended at 130
KCAS (127 KIAS).
Do not use flaps above 14,000 ft.
V
NO
Max. Structural Cruising Speed
Max. Structural Cruising Speed @ FL250
*Decrease 3.5 knots for each 1000-ft
above 12,000 feet (Press. Alt.)
185*
140
181*
137
Do not exceed this speed except in smooth
air and then only with caution.
V
NE
Never Exceed Speed
Never Exceed Speed @ FL250
*Decrease 4.4 knots for each 1000-ft
above 12,000 feet (Press. Alt.)
235*
178
230*
174
Do not exceed this speed in any operation.
Figure 2 - 1
AIRSPEED INDICATOR MARKINGS
The airspeed is shown on both the PFD and backup airspeed indicator. The airspeed on the PFD
is indicated with an airspeed tape and colored bands (see discussion on page 7-30). The backup
airspeed indicator has four colored arcs on the outer circumference. The meaning and range of
each band and arc is tabulated in Figure 2 - 2.
MARKING
KIAS VALUE
OR RANGE
SIGNIFICANCE
White
Band/Arc
60 - 117
Full Flap Operating Range - Lower limit is maximum weight stalling speed
in the landing configuration. Upper limit is maximum speed permissible
with flaps extended.
Green
Band/Arc
73 - 181
Normal Operating Range - Lower limit is maximum weight stalling speed
with flaps retracted. Upper limit is maximum structural cruising speed.
Yellow
Band/Arc
181 – 230
Operations must be conducted with caution and only in smooth air.
Red Line
230
Maximum speed for all operations
Figure 2 - 2