Engine Flashcards
Maximum N1
100%
Minimum N2
59.3%
Mamimum N2
100%
Max ITT (Ground Start)
740°C
Max ITT (Flight Start)
875°C
Max Continuous Thrust ITT
960°C
Max TO/GA ITT
983°C
Min Oil Press
25PSI
Max Oil Temperature (MCT)
155°C
Max Oil Temperature (TO/GA 5/10 min)
163°C
What protections do the FADEC provide?
On ground only:
- Hot Start
- Hung Start
- No lightoff
Other:
- N2 Overspeed (> 102%)
- Overtemperature in flight (various limits depending on engine phase)
Why the start stop selector must be moved to stop in case of hot start?
During engine start if the ITT reaches its limit the FADEC automatically
shuts off the fuel flow aborting the start sequence. In this case the start
control valve is not automatically closed. Pilot intervention is needed to
close the SCV by selecting the START/STOP switch to STOP.
Flat rate temperature over which the engine power starts to decrease
ISA+15