Dash 1 - Engines Flashcards
Max thrust
40,440
How many stages in low pressure compressor
4
How many stages in high pressure compressor
12
How many stages in the low pressure turbine section
5
How many stages in the high pressure turbine section
2
How many injectors in combustion section
24
N1(low spd rotor) has 1 fan, _ low press compressor stages and __ low press turbine stages
4 and 5
N2(high spd rotor) has __ high press compressor stages and __ high press turbine stages
12 and 2
ENGINE OIL PRESS X appears on the WAP when the pressure is below
70 PSI
What is the reccomended supply pressure for APU air start
20 psig
What is the reccomended supply pressure for crossbleed start
25 psig
What is the reccomended supply pressure for external air start
30 psig
For cold weather starts below __ use A&B engine ignition switch position
32 Deg F
For starting with tailwind exceeding __kts, place throttles in idle reverse
25
If a continuous PACK DSAG light is on during start, turn off pack prior to reaching
20% N2 - Do not turn off after 20% or starter damage will result
A possible hot or hung start may occur if fuel is switched on at less than
18% N2 RPM
Motor engine until EGT is below __ if it has been recently run
190 deg C
At ___ turn the ENG SHUT OFF switch to the on position
18% N2
If no EGT rise is noted after ___, turn off engine switch and motor for __, then stop start
20 sec/30 sec