CESSNA
MODEL 172R (180 HP)
LANDING LIGHTS
SECTION 4
NORMAL PROCEDURES
If landing lights are to be used to enhance the visibility of the
airplane in the traffic pattern or enroute, it is recommended that only
the taxi light be used. This will extend the service life of the landing
light appreciably.
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
runup before another takeoff is attempted. The engine should run
smoothly and turn approximately 2300 - 2400 RPM with 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, it
is very important that the throttle be advanced slowly. This allows
the airplane to start rolling before high RPM is developed, and the
gravel will be blown back of the propeller rather than pulled into it.
When unavoidable small dents appear in the propeller blades, they
should be immediately corrected as described in Section 8 under
Propeller Care.
Prior to takeoff from fields above 3000 feet elevation, the mixture
should be leaned to give maximum RPM in a full throttle, static
runup.
After full throttle is applied, adjust the throttle friction lock
clockwise to prevent the throttle from creeping back from a
maximum power position. Similar friction lock adjustments should
be made as required in other flight conditions to maintain a fixed
throttle setting.
Nov 24/99
4-23
Summary of Contents for 172R180HP
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