Section 4
Normal Procedures
Columbia 400 (LC41-550FG)
RC050002
Initial Issue of Manual: November 10, 2004
4-14
Latest Revision Level/Date: -/11-10-2004
MINOR SPARK PLUG FOULING
(Minor plug fouling can usually be cleared as follows.)
1. Throttle/Brakes
HOLD BRAKES MANUALLY AND SET THROTTLE TO 2200 RPM
2. Mixture
ADJUST FOR MAXIMUM PERFORMANCE (Move towards idle cutoff until
RPM peaks, and hold for 10 seconds. Return mixture to full rich.)
3. Throttle
SET TO 1700 RPM
4. Magnetos
RECHECK (50 RPM difference with a maximum drop of 150 RPM)
5. Throttle
SET TO IDLE (900 to 1000 RPM)
CAUTION
Do not operate the engine at a speed of more than 2000 RPM longer than
necessary to test engine operations and observe engine instruments. Proper
engine cooling depends on forward speed. Discontinue testing if temperature
or pressure limits are approached.
WARNING
Continuous overboost operation may damage the engine and require engine
inspection.
NORMAL TAKEOFF
1. Landing/Taxi Lights
AS REQUIRED
2. Mixture
FULL RICH
3. Power
ADVANCE SLOWLY TO FULL RPM (2600 RPM) (Watch manifold pressure
for indication of overboost.)
4. Elevator Control
LIFT NOSE AT 64-74 KIAS
5. Climb Speed
ACCELERATE TO BEST RATE OF CLIMB SPEED OF 110 KIAS
6. Wing Flaps
RETRACT (At 400 feet AGL, and at or above the best rate of climb speed)
7. Landing/Taxi Lights – OFF OR AS REQUIRED
SHORT FIELD TAKEOFF (Complete
Before Takeoff
checklist first)
1. Wing Flaps
TAKEOFF Position
2. Brakes
APPLY
3. Power
SET THROTTLE CONTROL TO FULL (2600 RPM)
4. Mixture
FULL RICH
5. Backup Boost Pump
ARMED
6. Brakes
RELEASE
7. Elevator Control
MAINTAIN LEVEL NOSE ATTITUDE
8. Rotate Speed
67 KIAS (5º nose up pitch attitude)
9. Climb Speed
82 KIAS (Until clear of obstacles)
10. Wing Flaps
RETRACT (At 400 feet AGL, and at or above the best rate of climb speed)
NOTE
If usable runway length is adequate, it is preferable to use a rolling start to
begin the takeoff roll as opposed to a standing start at full power. Otherwise,
position the airplane to use all of the runway available.