Cirrus Design
SR22
OAT
Pressure
Altitude
Standard
Temperature
Engine Power Terminology
HP
MCP
MAP
RPM
Static RPM
Performance and Flight Planning Terminology
g
P/N 13772-004
P/N 13772-004
Original Issue
Outside Air Temperature is the free air static
temperature obtained from inflight temperature
indications or from ground meteorological sources.
It is expressed in either degrees Celsius or degrees
Fahrenheit.
Pressure Altitude is the altitude read from the
altimeter
when
adjustment has been set to 29.92 in.Hg (1013 mb)
corrected for position and instrument error. In this
Handbook, altimeter instrument errors are assumed
to be zero.
Standard Temperature is the temperature that would
be found at a given pressure altitude in the standard
atmosphere. It is 15°C (59°F) at sea level pressure
altitude and decreases approximately 2°C (3.6°F)
for each 1000 feet of altitude increase. See ISA
definition.
Horsepower is the power developed by the engine.
Maximum Continuous Power is the maximum power
that can be used continuously.
Manifold Pressure is the pressure measured in the
engine's induction system expressed as in. Hg.
Revolutions Per Minute is engine rotational speed.
Static RPM is RPM attained during a full-throttle
engine runup when the airplane is on the ground
and stationary.
One "g" is a quantity of acceleration equal to that of
earth's gravity.
the
altimeter's
Section 1
General
barometric
1-11
1-11