Engines Flashcards
Main Engine Ground Start Max EGT / Time Limit
700°C / Momentary
Main Engine Air Start Max EGT / Time Limit
850°C / Momentary
Takeoff Max LP% / Max HP% / Max EGT / Time Limit
102.8% / 100.0% / 900°C / 5 min
Max Continuous LP% / HP% / EGT / Time Limit
102.8% / 98.7% / 885°C / Unrestricted
Main Engine Max Overspeed LP% RPM / HP% RPM / Time Limit
104.3% / 101.3% / 20 seconds
Main Engine Max Overtemp / Time Limit
920°C / 20 seconds
Reverse Thrust Max LP % RPM / Time Limit
78.1% / 30 Seconds
Max TGT prior to ground start
150°C
Max X-Wind component for ground start
30 Kts
Max Tailwind component for ground start
20 knots
Static operation above idle is limited to a x-wind component of ____ kts and/or a tailwind component of ____ kts.
<25 knots / <20 knots
Airstart envelope:
Starter assist _____ kts
Windmill Start ______ kts
Max Altitude ______ ft.
<250 Kts
250 kts - 340 kts
30,000 ft
On landing, pilot must reach idle reverse thrust by
60 KCAS
Is there a time limit on using thrust reverser during taxi?
No
What does the aircrew need to do if in an emergency reverse thrust is used to bring the a/c to a halt?
Record and report it for maintenance action
Takeoff distances increase by _____ with thrust reverser inop.
11%
*Multiply accelerate-stop distance by 1.11.
How many normal engine starts do you have?
3 - Each separated by 15 seconds. Need to wait 15 minutes after the third attempt to try again.
During normal engine start, how long can you crank each time?
3 minutes
What is the maximum %HP RPM that the pilot can reengage the starter?
42% HP RPM
What is the Min Engine Oil Temp for Engine Start?
-40°C
What is the Min Engine Oil Temp for T/O Power?
+20°C
What is the Maximum Engine Oil Temp?
+160°C
What is the Min Engine Oil Pressure just before takeoff with engine below 72.3% HP?
35 PSI
What is the Min Engine Oil Pressure for takeoff with engine above 90% HP?
45 PSI
What is the Min Engine Oil Pressure to complete flight with engine below 72.3% HP?
25 PSI
Engine must be shut down when oil pressure is below 25 PSI.
FLEX EPR can be used for takeoff on ______ hard runway surfaces
Dry or wet
To ensure that at least 75% of rated t/o thrust is used and that t/o configuation warnings are not inhibited, rated thrust EPR may be reduced no more than ____ for FLEX takeoffs
0.16
What is the min oil pressure to complete flight with engine above 90.0% HP?
35 PSI
