Power plant Flashcards
Which engine is installed?
IAE V2500-A5
What is the thrust output of the engine?
27.000 lbs
What are the components of the LP stage?
- Single stage fan
- 4 stage LP compressor
- 5 stage LP turbine
What are the components of the HP stage?
- 10 stage HP compressor
- 2 stage HP turbine
Which rotor is connected to the accessory gearbox?
N2
Which aircraft components are driven by the AGB?
- Engine driven hydraulic pump
- Engine generator
- Engine fuel pump
- Engine oil pump
- Air starter
- FADEC alternator
How is the FADEC powered?
By aircraft power for 5 min on startup, then shutdown. Dedicated alternator >10% N2
What are the three idle modes?
- Modulated idle
- Approach idle
- Reverse idle
When is approach idle selected?
In flight when flaps are extended
How many igniters are used for automatic start?
One
When will the ignition turn on/off in the automatic start sequence?
On - After dry crank sequence
Off - 43% N2
What is the effect on thrust of FADEC reverting to degraded N1 mode?
N1 is defined as a function of TLA only, overboots can occur.
How many igniters are used for a manual start?
2
When is ignition automatically selected on?
- Engine A/I on
- TO/GA or FLEX selected
- EIU failure
- Approach idle selected
- In flight sub-idle or surge
- Engine master switch cycled ON-OFF-ON
At what engine speed will the start valve close?
43% N2