Tecnam P-Mentor - Page 26

1
st
Edition - Rev. 0
Section 1 – GENERAL
ACRONYMS AND TERMINOLOGY
P-Mentor – Aircraft Flight Manual Page 1 - 10
9.2. Meteorological terminology
ISA
International Standard Atmosphere: is the air atmospheric standard
condition at sea level, at 15°C (59°F)
and at 1013.25hPa
(29.92 inHg).
QFE Official atmospheric pressure at airport level: it indicates the aircraft
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) / Fahrenheit (°F).
T
S
Standard Temperature is 15°C (59°F) at sea level pressure altitude
and decreased by about 2°C (3.5°F) 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 (29.92 inHg).
9.3. Avionics System Acronyms
XPDR
Transponder
9.4. Engine Terminology and Acronyms
RPM
Revolutions Per Minute is the number of revolutions per minute
of the propeller, multiplied by 2.4286 yields engine RPM.
EMS
Engine Management System consist of Sensors, actuators,
ECU and wiring harness. The main functionality are ignition
control, fuel injection control, fault detection and generator
management.
ECU Engine Control Unit is the core of the EMS which consists of two
modules: Lane A & B
Lane A/B
System A/B of Engine Management System is capable of taking
over control, regulation and monitoring of the engine.