propeller should never be rotated on the ground without assuming that
the magnetos are "hot" and the OFF position should be checked for
operation by briefly switching the magnetos to the OFF position while
at idle RPM prior to each shutdown. Normal shutdown then is
accomplished by putting the mixture control in the cut-off position.
The engine utilizes a throttle to control the airflow into the engine,
restricting it with a butterfly (throttle) valve in the intake system. Full
throttle allows unrestricted airflow into the engine.
Controllable propeller engines have a prop control which controls the
engine RPM. Maximum engine RPM at full throttle settings are
required for takeoff. Cruise power settings reduce engine RPM
commensurate with manifold pressure.
Fuel/air ratio is also controlled to compensate for the large air density
changes due to operation at altitude. This mixture control reduces the
fuel quantity provided to the engine from "Rich" to "Lean" and is
varied by fuel flow versus power setting curves from the engine
handbook to leaning based on measured engine exhaust gas
temperatures or Turbine Inlet Temperatures. The latter provides
maximum fuel economy and extended engine life. Takeoff is at full
rich at all times.
Increasing the power of the engine should be made right to left across
the engine controls: mixture full rich, RPM as desired, finally the
throttle increased to the desired manifold pressure. Power decreases
should be made left to right: decrease the manifold pressure, reduce the
RPM, then adjust the mixture.
ENGINE STARTING
The aircraft is equipped with an electric starter that cranks the engine to
provide the first of the three basic requirements (air, fuel and ignition).
Fuel is introduced by a prime pump prior to cranking with the mixture
control in the full rich position. Engage starter until engine starts.
After the engine starts adjust the RPM to approximately 1000 RPM and
monitor the oil pressure. If no oil pressure is indicated within 30
seconds, shut down and determine the cause. This time may be
slightly longer under abnormally cold conditions or with the improper
grade of oil in the engine. Under these conditions it is highly desirable
to warm the engine and its oil prior to starting to minimize engine wear
and ease starting. Very cold temperatures will increase the normal oil
pressure and following starts the engine RPM should be kept at idle or
slightly above until oil pressure starts returning toward normal.
Содержание ES-P
Страница 10: ...Basic Airframe Dimensions ...
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Страница 82: ...CARE AND CLEANING 10 EXTERIOR PAINTED SURFACES 11 ENGINE 11 RECOMMENDED SERVICING 12 ...
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Страница 95: ...SECTION 9 SUPPLEMENTS TABLE OF CONTENTS ALTITUDE REGULATIONS 2 ALTITUDE REACTION 2 ...
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Страница 120: ...WORK PERFORMED ...
Страница 122: ...Idle cut off Static rpm Idle mixture Check engine for oil leaks ...