Ops Limits Flashcards
Continuous RPM for APU
100 +/- 3
Continuous EGT for APU
200-715 *C
APU Starting EGT Limit
Below 60% RPM, the EGT can peak as high as 980 for 2 seconds
APU starting an engine EGT limit
When starting an engine, the APU EGT can peak as high as 760*C for 2 seconds
Unsuccessful APU start limits
- RPM doesn’t exceed 60% within 30 seconds
- EGT doesn’t decrease to normal limits once RPM past 60%
APU cooldown after unsuccessful start
Wait 1 minute between attempts. Maximum 3 attempts, then wait 20 minutes to cool down
APU cooldown after successful (air) start
wait 2 minutes after APU shutdown
APU cooldown after successful (ground) start
Wait 10 minutes after initiation of successful start attempts (switch placed in start)
How long after engine start or motoring (loaded) must the APU run unloaded for prior to shutdown?
2 minutes
APU will start up to ____’ (in most cases ____’)
15,000’, in most cases 20,000’
APU will power enough bleed air to start engines as high as ____’ (in most cases ____’)
10,000’, in most cases 15,000’
APU overspeed protection provided at ___ +/- ___%
110 +/- 3%
Do not operate the APU for more than ___ minutes with APU Generator OFF
5
The APU will operate for approx ____ seconds during negative G conditions
10
The APU overtemp shutdown is disabled during ground engine start cycle plus ___ seconds
4
Engine ITT normal range
275-865 *C
Engine ITT malfunction if stabilized above ___. Up to ___ allowable for ___ seconds during starting or acceleration
865, 900 allowable for 12 seconds
Engine Hot light comes on at ___
880 *C
Max IDLE ITT is ___
675 *C
Engine Core RPM normal range
56-100%
Engine Core RPM ___-___ allowable for ___ seconds. Never over ___
100-102 allowable for 3 seconds. Never over 102%
Engine Fan RPM normal range
22-98%
Engine Fan RPM ___-___ steady state indicates malfunction
98-100%
Write up engine if fan speed is __% low
2%
Abort takeoff if fan speed is __% low
3%
Engine Fuel Flow normal range
150-4100 lbs/hr
Engine oil pressure max allowable range if -30*C or below
95-100 PSI
Engine oil pressure normal range (IDLE-MAX)
55-95 PSI
Engine oil pressure acceptable range (IDLE-85%)
40-55 PSI
Engine oil pressure range core RPM-IDLE (EMERGENCY ONLY)
30-40 PSI
Engine oil pressure DO NOT OPERATE BELOW
30 PSI
- Engine oil pressure fluctuations steady state
2. Engine oil intermittent fluctuations allowable ___ for ___ seconds
- +/- 5 PSI
2. +/- 10 PSI for 2 seconds
Engine oil pressure may peg at ___ after ground or Airstart. It should normalize after a max of ___ minutes
100 PSI, back to normal in 2 1/2 minutes
ATS limited to ___ minutes of motoring with ___ minutes rest
2 minutes running with 5 minutes rest
Engine light-off must occur within ___ seconds. If not, throttle off THROTTLE-OFF, dry motor for ___ seconds and wait ___ minute before reattempt
light-off in 20 seconds
dry motor for 30 seconds
wait 1 minute
Engine should accelerate to min idle within ___ after light-off
60 seconds
ATS can make any number of consecutive starts after ___ seconds rest
60 seconds
Assisted airstarts require up to ___ seconds from initiation of APU start cycle to usable engine power
110
__% RPM needed for crossbleed starts. __% of thrust lost during crossbleed starts
85% minimum. Loss of 4% thrust
For assisted airstarts, MOTOR until ITT below ___C. Above 15,000’ cool engine until below ___C
150C, 100C above 15,000’
On shutdown, hold throttle against aft stop until fuel drain or __ RPM and __ ITT
5% RPM and 200*C EGT
Engines must idle ___ minutes before shutdown
5 minutes
Engine start light should go out within ___ seconds of RPM passing __%
10 seconds after passing 60%
IDLE to MAX takes approx __ seconds
10
Hydraulics normal range
2800-3350 PSI
X-winds based on available hydraulic systems
- both working
- one working
- man rev
- single engine man rev
- 35 kts
- 30 kts
- 20 kts
- 10 kts
Landing gear max airspeed
200 kts
With gear handle up, the horn comes on approx ___ kts and ___’ MSL if throttle is retarded below halfway between IDLE and MAX
160kts and 10,000’ MSL
Gear normally retracts/extends in __ seconds
6
Emergency gear extension of gear takes max __ seconds
30
After aux gear extend with good hydraulics, allow 15 seconds between stowing aux gear handle and resetting CB
15
How many applications (minimum) do you have using emergency brake accumulator
5 applications
The anti-skid system prevents braking until wheels have spun up to __ kts. Protection will be provided down to __ kts
spun up to 25 kts, will work down to 10 kts
“Q” sensor retracts flaps between ___ and ___ when accelerating
185-210 kts
“Q” sensor re-extends flaps to selected position at ___ kts when decelerating
190 kts
Max flap down speed
200 kts
Emergency retract will allow flaps to float up ___ from 20* and ___ from 7*
<15* from 20
0* from 7
Speed brake max on ground and in air
100% on ground, 80% in air
Normal landing Speed Brake setting
40%
__ seconds from full close to open and vice versa
3 seconds
Rudder limit below ___ kts, +/- __ degrees travel
240 kts, 25* travel
Rudder limit above ___ kts, +/- __ degrees travel
240 kts, 8* travel
Rudders are aerodynamically effective at __ kts or more
50 kts
Man Rev can take __ seconds until complete hydraulic bleed-off
10 seconds
Man Rev can take up to __ seconds for aileron tab shift
4 seconds
Man Rev can take up to __ seconds for aileron float-up
4 seconds
Man Rev can take up to __ seconds to get into Man Rev during transition
14 seconds
Nosewheel steering max degree of travel
55*
A-10 can make a 180 degree turn on a __-ft wide runway
50 feet wide
With slats extended, drag increases by ___ units
2.02
Rudder trim: +/- __ degrees above ___ kts, and +/- __ degrees below
8* above 240 and 10 degrees below
Cockpit pressurization schedule
begins at 10,000’, maintains 10,000’ until 18,000’. 60% pressure above 18,000’
When using man temp control, it takes ___ seconds to go from min to max
13 seconds
Windshield hot light illuminates when windscreen reaches ___ degrees
150*C
Pitot heat can be on no longer than __ minutes on ground
6
Tank unequal light comes on ___
750 +/- 250 lbs
Left/Right main fuel low caution light comes on ___
500 lbs
Tank gate transfers at ____ lbs or above in level flight
1300 lbs
Main tanks suction feed up to ____’ (most cases ____’)
10,000’, most cases 20,000’
External tanks cycle fuel into internal tanks when they drop ___ lbs or __ minutes
400 lbs or 10 minutes
Fuel Test totalizer and pointers
6000 +/- 400 lbs
3000 +/- 300 lbs
Trapped wing fuel may gravity feed when mains get below ___ lbs
600 lbs
Airspeed limits with aft CF shift and tanks unequal light
___ at sea level
___ at _____
___ at _____
315 at sea level
240 KIAS at 15,000’
156 KIAS at 35,000’
Canopy must be closed and locked when total headwind exceeds
50 kts
Max symmetrical “G”
7.33 to -3.00
Max gross weight
51,000 lbs
Max airspeed
400 KIAS or .75 Mach, whichever is lower
Zero or negative ‘G’ flight no longer than ___
10 seconds
Altimeter max difference between ELECT and PNEU modes and field elevation
+/- 75 feet
Standby attitude indicator good for __* for __ min after power loss
+/- 6 degrees for 9 minutes
Battery life good for __ minutes DC only and __ minutes if inverter powered
30 minutes DC only, 18 minutes w/ inverter
Reset generator a max of __ times
3 times
Normal Final Approach Speed
130 + 2xGas
No-Flap Final Approach Speed
140 + 2xGas
SE Final Approach Speed
150 + 1xGas
Min Run subtract __ kts from normal computed approach speed
10 kts
Final Turn Speed
145 + 2xGas
Touchdown Speed
10 kts less than normal/no-flap speeds
add __ kts to final for cross winds in excess of __ kts
10 kts for x-winds 20 kts and above
Add __ the gust factor to a max of __ for final and touchdown speeds
1/2, 10 max
Max Range AOA
15.6
Max Endurance AOA
17.5
Allowable sink rate for landing at 33,200 gross weight and 51,000 lbs
600 ft/min, 354 ft/min
GCAS voice-warning occurs at __ AGL under level flight
90 feet AGL
Engine post-shutdown fire: ITT above __ with RPM below __
540*C with RPM below 5%
With left-engine failure, residual hydraulics will raise gear if handle raised in __ seconds
5
Best SERC rule of thumb:
Climb at __ kts above T/O speed gear down, __ kts above with gear up, __ kts above if both gear and flaps up. If SERC is T/O, add __ for gear/flaps and __ for both retracted
10, 20, 30, 10, 20
Emergency Jettison will jettison all stores in __ second(s)
1
Recommended emergency jettison speed is ___ KIAS or less
250
Windmill Airstart requires ____-____ feet and in most cases ___ kts or more required
6000-8000’, 300 kts
Total loss of oil pressure means engine seizure in __-__ minutes
1-3 minutes
SE man rev min control speed
130 kts
During go-around from SE approach, best SERC (gear down, flaps 0) is at __ kts less than SE approach speed. Best SERC climb speed increases __ kts when gear retracted
10 kts less
increases 10 kts
An erect spin can be confirmed with the needle fully deflected, airspeed at or below ___ KIAS and an AOA consistently above __ unites and usually pegged
120 KIAS and 25 AOA
With loss of one hydraulic system, rudder pedal pressure and yaw trim, damping, and auto turn coordination authority are reduced by __%
50%
Post stall gyrations require from less than ____ ft to as much as ____ ft altitude for recovery
1,000’ - 8,000’
Spin recoveries require from ____-____ ft altitude for incipient, half-turn spins and ____ ft for 3-turn developed spins
4,000-6,000 ft
10,000 ft
Min aerodynamic SE ground control speed is ___ Kts
70 KIAS
Controlled ejection altitude
2,000 ft AGL
Uncontrolled ejection altitude
4,000 ft AGL
With right engine failure (as opposed to left), rudder force required to maintain controlled flight can be as much as ___ lbs higher
100 lbs
