Training Manual
A319/A320/A321
Flowpath aerodynamic stations have been established to facilitate engine performance assessment and monitoring.
Airflow Stations
STA
Designation
0
1
Ambient
Intake Lip of Air Intake
2
Fan Inlet
2.5
LP Compressor Exit, (HP)
Compressor Inlet
3
4
4.5
Combustion Section Exit
HP Turbine Exit
4.9
LP Turbine Exit
5
12.5
Turbine Exhaust Case Exit
Fan Exit
Legend
1)
2)
HP Compressor Exit
CIP
T2.5
CIT
P3
Pb, CDP
T3
–
–
P4.9 (P5)
T4.9
–
P12.5
CDT
–
–
Parameters used for
Engine
Engine Trend
Control
Monitoring 1 )
–
Remarks
–
for EPR Calculation 2 )
–
–
–
–
–
for EPR Calculation 2 )
EGT
–
FEP
–
–
–
– Same Sensor used as for Engine Control is also used for Trend Monitoring;
– Special Sensor used for Engine Trend Monitoring
EPR / Engine Pressure Ratio =
Sep08/Technical Training
Copyright by SRTechnics
The manufacture uses numerical station designations. The station numbers are
used as subscripts when designating different temperatures and pressures,
throughout the engine.
Measured Parameters
often used
Designation
Abbreviations
P0
Pamb
–
–
P2
FIP
T2
FIT
P2.5
Power Plant V2500A
72-00 Engine Presentation
P4.9
P2
for training purposes only
72-00-8
Training Manual
A319/A320/A321
Power Plant V2500A
72-00 Engine Presentation
Figure 5: Engine Stations
AERODYNAMIC STATIONS
1
STATION
PT PSIA
TT °C
TT °F
2
12.5
2
14.7
15
59
2.5
26.2
74.1
164.4
2.5
3
12.5
24
64.6
148.3
3
438.9
540
1003.9
4
4.5
4.5
82.9
791.4
1456.5
4.9
4.9
19.9
496.6
925.9
V2500-A1
Sep08/Technical Training
Copyright by SRTechnics
for training purposes only
72-00-9