Section 5
Columbia 400 (LC41-550FG)
Performance
Initial Issue of Manual: November 10, 2004
RC050002
Latest Revision Level/Date: -/11-10-2004
5-13
CRUISE PERFORMANCE OVERVIEW
The tables on pages 5-14 through 5-27 contain cruise data to assist in the flight planning process.
This information is tabulated for even thousand altitude increments and ranges from Sea Level
feet to 25,000 feet. Interpolation is required for the odd number altitudes, i.e., 5000 feet, 7000
feet, etc., as well as altitude increments of 500 feet, such as 7500 and 9500.
The tables assume proper leaning at the various operating horsepowers. Between 65% and 85%
of brake horsepower, the mixtures should be leaned through use of the turbine inlet temperature
(TIT) gauge. Please refer to page 4-29 in this handbook for proper leaning techniques.
KTAS values in the tables are valid without the nose wheel pant installed. If the nose wheel pant
is installed add 4 kts to the KTAS values.
The maximum recommended cruise setting is 85% of brake horsepower. The mixture must not
be leaned above settings that produce more than 85% of brake horsepower. During cruise power
settings above 65%, ambient temperature conditions need to be considered. In hot weather and
high altitudes, it may be necessary to set the fuel flow to a lower TIT to maintain cylinder head
temperatures within the recommended range for cruise.