-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
exceeding how much by volume of aviation gasoline may result in engine flameout?
10%
specified fuel for the aircraft
JP-8
maximum airspeed is what when total aircraft fuel is below 16,000 lbs?
300 KCAS/Mach 0.825
maximum airspeed is what when total aircraft fuel is below 40,000 lbs, total payload is greater than 124,000 lbs, and the pressure altitude is between 15,000 lbs and 27,728 feet?
330 KCAS/MACH 0.825
maintain above what speed with RAT extended?
130 KCAS
Normal brake temp limits
Green
-99 to 650 C
Caution brake temp limits
Yellow
651 to 750 C
Warning brake temp limits
Red
751 C and above
Past what brake temperature will the MFD not read any higher?
830 C, past this it will only display 830 C
normal wear limit (NWL)
tread worn exposing first/outer cord layer
maximum wear limit (MWL)
exposure of the third cord layer plus two additional landings
can a tire be worn past the NWL?
Yes, up to the MWL provided there are no cuts in the tire
max taxi speed
40 knots
aircraft gross weight > 490,000 lb taxi speed limit
<=20 knots with symmetric thrust when nose wheel steering > 20 degrees
fuel weight > 165,000 lb taxi speed limit
<=15 knots with asymmetric thrust when nose wheel steering > 20 degrees
maximum rate of descent
20,000 feet per minute
landing gear cooling period
4 consecutive landings
cool 10 minutes with the gear down
cool 20 minutes with the gear up
full flap steep approach/assault landings are prohibited with more than how many pounds total fuel? unless?
165,000 lbs total fuel
unless there is less than 4,000 lbs of fuel in the 4 ER compartments combined
with flaps/slats extended, abrupt rolling pushover/pullup load limits are
1.6 to 0.4 g’s
minimum load factor allowed during an abrupt rolling pushover is
0.4 g’s
if airspeed exceeds Vh/Mh, the minimum load factor is restricted to
0.75 g’s
roll rate is limited to how many degrees per second for bank angles exceeding 60 degrees
10 degrees
what is reverse thrust pushover load factor for clean configuration
zero
what are allowable load factors with flaps or slats extended (doesn’t apply to speed brakes)
0 to 2.0 degrees
maneuvers are restricted to how many g’s when extending or retracting landing gear?
2.25 g’s
flight maneuver load factor is limited to how many g’s when carrying single axle loads greater than 27,000 lb
2.5 g’s
pushover maneuvers above Vh/Mh are restricted to how many g’s for all weight configurations
0 g’s
when opening/closing the cargo door/ramp, how many g’s are allowable
0 to 1.6 g’s
when cargo door or ramp are open, g loading limit
0 to 2.0 g’s are allowable during steady maneuvers
0.4 to 1.6 g’s are allowable during abrupt rolling pullouts
what ramp weight is the aircraft capable of structurally supporting while stationary
615,000 lb
maximum ramp weight during any aircraft movement
586,000 lb
max takeoff weight-prepared field
585,000 lb
max 3/4 flap landing weight-prepared field
585,000 lb
max FF landing weight-prepared field
502,100 lb
max zero fuel weight-prepared field
447,400 lb
max fuel weight with normal brake application prior to nose gear touchdown-prepared field
<165,000 or <4,000 in ER compartment
maximum airspeed-clean
350 KCAS/Mach 0.825
max speed thrust reverser- in flight/ground operations
350 KCAS/182 KCAS
max speed slats extend
280 KCAS/Mach 0.62
max speed slats retract
270 KCAS/Mach 0.62
max speed flaps 3/4
190 KCAS/Mach 0.62
max speed flaps 1/2
250 KCAS/Mach 0.62
max speed flaps full
175 KCAS/Mach 0.62
max speed full speedbrakes
Vl/Ml
max speed landing gear extending
250 KCAS/Mach 0.62
max speed landing gear retracting
225 KCAS/Mach 0.62
max speed landing gear down/locked
250 KCAS/Mach 0.62
max speed air deflector open
250 KCAS/Mach 0.62
max speed troops doors opening/open
250 KCAS/Mach 0.62
max speed cargo door/ramp opening/closing/open
250 KCAS/Mach 0.62
max speed pilot windows open
205 KCAS/Mach 0.62
max speed cargo door/ramp opening/closing/open with slats retracted
250 KCAS/Mach 0.74
control surface are protected up to how many knots?
70 knots
control surface gust damping is effective for at least ___ hours after hydraulic systems No 2 and No 3 are shut down
72 hours
hydraulic damping is still effective if accumulator pressure is between ____ and ____ psig
2000 and 1200 psig
the aircraft should be evacuated to a safe weather area if winds in excess of what are expected?
70 knots
maximum allowable crosswind for landing is
30 knots
maximum allowable headwind for takeoff and landing is
40 knots
maximum tailwind component is
10 knots
