-1 Section 5 Flashcards
engine is rated at how many pounds of thrust?
40,440 lbs of thrust
maximum oil pressure?
there is none
engine starter duty cycles
2 consecutive 15 minutes cooling third attempt 10 minutes cooling 4th attempt 10 minutes cooling 5th attempt 1 hour minimum cooling
max engine start attempts in 1 hour?
5
starter disengages at what?
51% N2
in an emergency, starter may be engaged when below what?
20% N2
is motoring the engine for 30 seconds during Engine clearing procedure considered a start attempt?
no
delay starter re-engagement for how long once N2 RPM indication is lost from the MFD eng display to ensure that engine rotation has stopped?
40 seconds
Max observed EGT with MAX/DRT
655
Max observed EGT with INT
625
operation above 625 is limited to 5 minutes
Max observed EGT with MCT
625
operation above 625 is limited to 5 minutes
Max observed EGT with IDLE/IDLE REVERSE
460/490
*460 is without bleed air
Max observed EGT for starting-ground
495 when less than 55% N2
Max observed EGT starting-air
655
Max observed EGT with REVERSE
655
operation above 625 is limited to 5 minutes
how long can the engine be motored for?
maximum of 15 minutes
other than the engine clearing procedure, if the engine is motored for not longer than 90 seconds, will it be considered a start attempt?
yes
for motoring duration greater than 90 seconds up to and including 15 minutes, how long should the starter be cooled for?
5 minutes for each 30 seconds of operation up to a maximum of 40 minutes
what are the engine cooling periods for?
to cool the starter integral oil supply
APU starter limit
1 minute
what is considered an APU start attempt?
any APU starter engagement
how many APU start attempts per rolling hour cycle?
3
How much delay between APU starter attempts?
5 minutes
is reverse thrust permitted when slats are extended?
no, except as required during landing roll or rejected takeoff roll
maximum aircraft bank angle
70 degrees
-because stall/flight characteristics have not been validated beyond 70 degrees
does the HUD/MFD and standby attitude indicator provide aircrew a means to determine 70 deg AOB?
no
is there published performance data for 70 deg AOB?
No, not beyond 60 deg
is routine operation of any flight control axis in mechanical mode instead of EFCS allowed?
no
allowable design fuel imbalance between wings for sustained operations?
8000 lbs
minimum fuel in the outboard tanks when total fuel is greater than 152,000 lbs?
30,000 lbs
allowable design fuel imbalance between inboard and outboard tanks for sustained ops when total fuel is less than 152,000 lbs?
8000 lbs
with less than how much fuel per tank does deck angle and lateral g become increasingly more critical?
4000 lbs
below how much fuel per tank should deck angle be restricted to +- 3 deg and lateral g maneuvers be minimized so as not to cause boost pump cavitation and engine flame out on approach?
1000 lbs
if an inboard tank SCHD light appears on overhead fuel panel, limitation of 1000 lbs with +-3 deg deck angle should be increased by how much?
1000 lbs
maximum in flight weight is?
585,000 lbs including air refueling
maximum fuel limit from a semi-prepared field
92,000 lbs
for planning purposes on long endurance flight (>3.5 hrs) assume what temperature rise at typical C-17 cruise altitudes and MACH numbers?
20 deg C
plans speeds and altitudes to keep TAT a min of what above the freezing point of the worst case fuel unloaded for that flight (Table 5.3)?
3 deg C