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
Содержание Cessna 172S Skyhawk SP
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