Meteorological
terminology
ISA International Standard Atmosphere:
is
the air atmospheric standard
condition at sea level,
at
15
°C (59 °F) and at 1013.
25
hPa
(29.92 inHg).
QFE Official atmospheric pressure at airport level:
it
indicates the air-
craft absolute altitude with respect to the official airport level.
QNH Theoretical atmospheric pressure at sea level:
is
the atmospheric
pressure reported at the medium sea level, through the standard air
pressure-altitude relationship, starting from the airport QFE.
OAT Outside Air Temperature
is
the air static temperature expressed
in
degrees Celsius (°C).
Ts Standard Temperature
is
15
°C at sea level pressure altitude and
decreased
by
2 °C for each I
OOO
ft
of
altitude.
Hp
Pressure Altitude
is
the altitude read from an altimeter when the
barometric subscale has been set
to
I 013 mb.
Avionics
System
Acronyms
XPDR
Transoonder
Pagel-JO
Section
1 -
General
2"d
Edition,
Rev.
I I
ACRONYMS
AND
TERMINOLOGY
To Next Page
Loading...
