CESSNA
SECTION 4
MODEL 172S NAV III
NORMAL PROCEDURES
KAP 140 AUTOPILOT
U.S.
BEFORE TAKEOFF
(Continued)
ELEVATOR TRIM
The elevator trim tab is in the takeoff position when the trim pointer is
aligned with the index mark on the pedestal cover. Adjust the trim
wheel during flight as necessary to make control wheel forces more
neutral.
LANDING LIGHTS
It is recommended that only the taxi light be used to enhance the
visibility of the airplane in the traffic pattern or enroute. This will extend
the service life of the landing light.
TAKEOFF
POWER CHECK
It is important to check full throttle engine operation early in the takeoff
roll. Any sign of rough engine operation or sluggish engine acceleration
is good cause for discontinuing the takeoff. If this occurs, you are
justified in making a thorough full throttle static run-up before another
takeoff is attempted. The engine should run smoothly and turn
approximately 2300 - 2400 RPM with the mixture leaned to provide
maximum RPM.
Full throttle run-ups over loose gravel are especially harmful to
propeller tips. When takeoffs must be made over a gravel surface,
advance the throttle slowly. This allows the airplane to start rolling
before high RPM is developed, and the gravel will be blown behind the
propeller rather than pulled into it.
Prior to takeoff from fields above 3000 feet pressure altitude, the
mixture should be leaned to give maximum RPM at full throttle, with the
airplane not moving.
After full throttle is applied, adjust the throttle friction lock clockwise to
prevent the throttle from moving back from a maximum power position.
Similar friction lock adjustments should be made as required in other
flight conditions to hold the throttle setting.
172SPHAUS-05
4-31
For
Training
Purposes
Only
Summary of Contents for Cessna 172S NAV III Skyhawk SP
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