Section 2
Limitations
Columbia 400 (LC41-550FG)
RC050002
Initial Issue of Manual: November 10, 2004
2-6
Latest Revision Level/Date: -/11-10-2004
POWERPLANT INSTRUMENT MARKINGS
The following table, Figure 2 - 3, shows applicable color-coded ranges for the various
powerplant instruments. The primary powerplant instruments are located on the engine
instrument panel (see discussion on page 7-23). The Engine page on the MFD also displays all
the powerplant instruments listed below (see discussion on page 7-83).
INSTRUMENT
RED LINE
Minimum
Limit
YELLOW
RANGE
Warning
WHITE
RANGE
Limited
Time
Operations
GREEN
RANGE
Normal
Operating
RED LINE
Limit
Tachometer
Minimum for idle
600 RPM*
N/A
2500 – 2600
RPM
2000 – 2500
RPM
2600 RPM
Manifold Pressure
N/A
N/A
33.5 – 35.5 In.
of Hg
15 – 33.5 In. of
Hg
(No Placard)
35.5 In. of Hg
Oil Temperature
Minimum for
takeoff 100ºF*
(38
°
C)
220ºF – 240ºF
(104
°
C – 116
°
C)
100ºF – 170ºF
(38
°
C – 77
°
C)
170ºF – 220ºF
(77
°
C – 104
°
C)
240ºF
(116
°
C)
Oil Pressure
Minimum for idle
10 psi
N/A
10 – 30 psi and
60 – 100 psi
30 – 60 psi
100 psi
(Cold Oil)
Fuel Quantity
A red line below
“E” or “zero”
indicates the
remaining four
gallons in each
tank cannot be
used safely in
flight.
N/A
N/A
N/A
N/A
Fuel Flow
10 – 22 GPH*
(38 – 83 LPH)
15 – 25 GPH‡
(57 – 95 LPH)
40 GPH (151
LPH)
Cylinder Head
Temperature
N/A
100ºF – 240ºF‡
(38
°
C – 116
°
C)
200ºF – 240ºF†
(93
°
C – 116
°
C)
420ºF – 460ºF
(216
°
C – 238
°
C)
N/A
240ºF – 420ºF
(116
°
C – 16
°
C)
460ºF (238
°
C)
Turbine Inlet
Temperature
N/A
1650ºF – 1750ºF
(538
°
C – 954
°
C)
N/A
1000ºF –
1650ºF*
(538
°
C – 99
°
C)
1750ºF (954
°
C)
(1850ºF (1010
°
C)
for 30 sec. limit)*
* These temperatures or pressures are not marked on the gauge. However, it is important information that the pilot
must be aware of.
† Range shown on analog gauge
‡Range shown on MFD Engine page
Figure 2 - 3