Tecnam P92 Echo MKII, Flight Manual

Page: 17 / 162

Page 1 -9
Section 1 - General
ACRONYMS AND TERMINOLOGY
1
st
Edition - Rev. 0
M
ETEOROLOGICAL TERMINOLOGY
ISA International Standard Atmosphere: is the air atmospheric standard
condition at sea level, at 15°C (
59°F ) and at 1013.25hPa
( 29.92inHg ).
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).
T
S
Standard Temperature is 15°C at sea level pressure altitude and de-
creased by 2°C for each 1000 ft of altitude.
H
P
Pressure Altitude is the altitude read from an altimeter when the
barometric subscale has been set to 1013 mb.
E
NGINE
P
OWER TERMINOLOGY
RPM Revolutions Per Minute: is the number of revolutions per minute of
the engine.