Textron Cessna 172S Skyhawk SP, Information Manual

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CESSNA
MODEL 172S
SECTION 1
GENERAL
METEOROLOGICAL TERMINOLOGY
OAT Outside Air Temperature is the. free air static
temperature.,W may'be expressed in either degrees
'Celsius or degrees Fahrenheit
Standard Standard Temperature is 15°C at sea level
Temperature pressure altitude and decreases by 2°C for each
1000 feet of altitude.
Pressure Pressure Altitude is the altitude read from an
Altitude altimeter when the altimeter's barometric scale has
been set to 29,92 inches of mercury (1013 mb).
ENGINE POWER TERMINOLOGY
BHP Brake Horsepower is' the power developed by the
"engine. .
RPM Revolutions Per Minute is engine speed.
Static Static RPM is engine speed attained during a full
RPM throttle engine runup when the airplane is on the
ground and stationary.
MAP Manifold Absolute Pressure is the absolute
pressure measured in the engine induction system.
MAP is' measured in units of inches of mercury
(inHG).
Lean Decreased proportion of fuel in the fuel-air mixture
Mixture supplied to the engine. As air density decreases,
the amount of fuel required by the engine decreases
for a given' throttle setting.
Adjusting the fuel-air
mixture to provide a smaller portion of fuel is known
as "leaning" the mixture.
Rich Increased proportion of fuel in the fuel-air mixture
Mixture. . supplied to the engine. As air density increases, the
amount of fuel required by the engine increases for
a given throttle setting. Adjusting the fuel-air mixture
to provide a greater portion of fuel is known as
"richening" the mixture.
Full Rich Mixture control full forward (pushed in, full control
travel, toward the panel). .
Idle Cutoff Mixture control full aft (pulled out, full control travel,
away from the panel).
Revision 4