User manual

20 21
20 21
(b) Meteorological Terminology
ISA International Standard Atmosphere in which:
(1) The air is a dry perfect gas;
(2) The temperature at sea level is 15°C (59°F)
(3) The pressure at sea level is 29.92 inches (1013.2 mb).
(4) The temperature gradient from sea level to the altitude
at which the temperature is -56.5°C (-69.7°F) is -0.00198°C
(-0.003564°F) per foot and zero above that altitude.
OAT Outside Air Temperature is the free air static temperature
obtained either from in flight temperature indications or
ground meteorological sources, adjusted for instrument error
and compressibility effects.
IPA Indicated Pressure Altitude is the number actually read from
an altimeter when the barometric subscale has been set to
29.92 inches of mercury (1013.2 millibars).
SP Station Pressure is the actual atmospheric pressure at field
elevation.
Wind The wind velocities recorded as variables on the charts of this
manual are to be understood as the headwind or tailwind
components of the reported winds.
(c) Power Terminology
Takeoff Power Maximum power permissible during takeoff.
Maximum Con- Maximum power permissible continuously during takeoff,
tinuous Power one engine inoperative and emergency operations only.
Maximum Maximum power permissible during climb (Maximum
Climb Power normal operating power).
Maximum Maximum power permissible during cruise (Maximum
Cruise Power normal operating power).
Maximum Nor- Maximum power permissible continuously during all
mal Operating normal operations.
Power