Chapter 4 Flashcards
Maximum altitude
41000 MSL
Icing limits
- prolonged flight in icing conditions shall be avoided
- when airframe icing is visible, intentional stalls or use of full flaps is not authorized
Engine handling limits
- Throttle at idle for:
- abrupt (0.5 sec or less from neutral to full back stick) pulls to full back stick
- abrupt full lateral stick inputs at full back stick
- airspeeds less than 85 KIAS at altitudes above 15000 MSL
- A/S 85-150 KIAS above 35k MSL: slow throttle movements
- except in emer, engine stabilized at idle for 30 sec prior to shutdown
- sustained eng operation <70% N2 above 30k’ MSL may result in a sub-idle condition leading to flameout
Start ____ with throttle _____.
prohibited / above ground idle detent
Minimum RPM required for start
15% N2
Engine light-off must occur within ____ of throttle ___.
15 seconds / moving to idle
Minimum voltage for each battery
24V
_____ start in manual fuel is _____.
ground / prohibited
Manual fuel RPM limit above/below ___K’ MSL.
90% N2 above 20k’ MSL
95% N2 at or below 20k’ MSL
T/F: GTS start with external power is prohibited.
True
GTS start attempt interval
3 minutes between attempts, following 3rd attempt 30 minute cool down period is required
Following unsucessful GTS start attempt…
…further attempts prohibited until GTS exhaust duct and combustor section are inspected and any residual fuel is removed, and the RAT doors are inspected for discoloration/warpage.
GTS starts not reliable above _____.
15K’ MSL
MRT (max RPM/EGT, limit)
104% N2, 610 C, 30 mins per flight hour
Transient/acceleration engine limit
106% N2, 645 C, less than 20 seconds
may reach 645 C during or immediately following accel, but must decrease to 610 C within 20 seconds
Max continuous engine limit
100% N2, 550 C
Idle engine limit
55% N2 +/- 2%, 450 C
- with airflow knob off, idle RPM approx 2% higher
- idle rpm increases ~1% for each 1500’ altitude and 10 C in ambient temperature
Ground start engine limit
550 C
max overshoot 20 C for 10 seconds
Airstart engine limit
600 C
max overshoot 50 C for 10 seconds
(EGT/RPM light operates at 650 +/- 8 C)