Engine Power Terminology; Performance And Flight Planning Terminology; Reissue A - Cirrus SR20 Pilot Operating Handbook

Cirrus Design
SR20
• Pressure Altitude is the altitude read from the altimeter
when the altimeter's barometric 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.

Engine Power Terminology

HP Horsepower is the power developed by the engine.
MCP Maximum Continuous Power is the maximum power that
can be used continuously.
MAP Manifold Pressure is the pressure measured in the
engine's induction system expressed as in. Hg.
RPM 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.

Performance and Flight Planning Terminology

g One "g" is a quantity of acceleration equal to that of earth's
gravity.
• Demonstrated Crosswind Velocity is the velocity of the
crosswind component for which adequate control of the
airplane during taxi, takeoff, and landing was actually
demonstrated during certification testing. Demonstrated
crosswind is not considered to be limiting.
• Service Ceiling is the maximum altitude at which the
aircraft at maximum weight has the capability of climbing
at a rate of 100 feet per minute.
GPH Gallons Per Hour is the amount of fuel (in gallons)
consumed by the aircraft per hour.
P/N 21399-004 P/N 21399-004

Reissue A

Section 1
General
1-11 1-11