Section 5
Columbia 400 (LC41-550FG)
Performance
Initial Issue of Manual: November 10, 2004
RC050002
Latest Revision Level/Date: -/11-10-2004
5-7
with a forward CG are noticeably diminished. Please see stall discussion on page 4-32. The
maximum altitude loss during power off stalls is about 500 feet. Nose down attitude change
during stall recovery is generally less than 5
°
but may be up to 15
°
.
Example
: Using the table
below, stall speeds of 64 KIAS and 65 KCAS are indicated for 30° of bank with landing flaps.
STALLING SPEEDS
CONDITIONS
ANGLE OF BANK
(Most Forward Center of Gravity – Power Off – Coordinated Flight)
0
°
30
°
45
°
60
°
Weight
Flap Setting
KIAS
KCAS
KIAS
KCAS
KIAS
KCAS
KIAS
KCAS
Flaps - Cruise
72
73
76
78
85
87
101
103
Flaps - Takeoff
65
66
70
71
77
79
92
94
3600 lbs.
(1633 kg)
Flaps - Landing
59
60
64
65
70
72
83
85
Figure 5 - 8
SPEEDBRAKES™
When SpeedBrakes™ are installed it is important to be aware of the following performance
changes that may result when the speed brakes are deployed.
1. During takeoff with the SpeedBrakes™
inadvertently deployed, expect an extended takeoff
roll and reduction in rate of climb until the SpeedBrakes™ are retracted.
2. During cruise flight with the SpeedBrakes™ deployed, expect the cruise speed and range to
be reduced 20%.
3. In the unlikely event of one SpeedBrake™ cartridge deploys while the other remains
retracted, a maximum of 1/4 to 1/3 of corrective aileron travel, and up to 20 lbs. of additional
rudder pressure are required for coordinated flight from stall through V
NE
. Indication of this
condition will be noted by one annunciator light illuminating with the SpeedBrakes™ switch
ON.
4. Deployed SpeedBrakes™ have minor to no effect on stall speed and stall characteristics.