Limitations Flashcards
Max aircraft speed
Mmo / Vmo
Mmo= 0.52
Vmo= 270-272kts
Max speed 250kts bellow 8000ft.
Va
200kts
Max Flap speeds
Vfe
Flap 15 = 200kts
Flap 25 = 150kts
Flap 45 = 135kts
Max Landing gear operation
Vlo = Vle
200kts
T6 limits
Max 800 C continuous
upto 816 for 5min max takeoff only
816 - 850 20sec max
850-950 5sec max
Torque limits
Take off 100%
During take-off only up to 110% 5min max
Transient 120% 20 sec limit
Climb and cruise 84%
Np limits
100 - 101 %
transient 110% 20sec limit
Max revers 80.5% steady state.
Nh limits
100%
102%
62%minimum ground idle
NL limits
100%
102%
Oil temp limits
-40’C start
-40’C to 115’C ground idle
climb and take-off 45’C - 115’C
115’C to 125’C max 15 minute limit
Oil Press limit
40psi minimum
40psi-55psi only with NH below 75%
55-65psi normal
70psi Max during start
40-70psi transient
Starter cycle limits
30sec on 3min off
30sec on 3min off
30sec on 30min off
Use of prop sync
For take-off and landing prop sync must be off.
Max Fuel in each tank
unusable
imbalance
Additional unusable?
5732 lbs = 1311kg = 1670 L total usable
49.6 lbs = 11kg = 14 L unusable
600 lbs = 272kg = 346 L imbalance
Additional unusable with ejector pumps inop
79.6 lbs
Weight limits
MRW = 12070kg
MTOW = 11990kg
MLW = 11700kg
MZFW = 10900kg
Max differential Cabin pressure
7.2psi
Aircraft temperature limits
minimum -54’C
Landing bellow -40’C use abnormal landing procedure
Max Aircraft temp for sensitive equipment regarding the availability of air conditioning?
This limit is to prevent sensitive equipment overheating.
Air con functioning then limit is ISA +35’C
Air con Not functioning
Alt alerter off = ISA +20’C
Alt alerter on = ISA +15’C (up to 20’C for 30min with radio master switch on)
20 and 15’C limits do not apply up to 2min for limited take-off procedures
Max operational Altitude
EEC and Engine Bleed on = 32,000ft
One off one on = 25,000ft
both EEC and Engine Bleed OFF = 20,000ft
Limited to 30,000ft unless the front RH aisle passenger seat is reserved for the flight attendant.
Max takeoff and landing altitude
10,000ft pressure alt.
Above 8,000ft only allowed with EEC off.
Max windshield wiper speed
160kts
Minimum Nh required for pneumatic de-icing
80%
Max Generator Loads
main gen:
On the ground - 400A (380A if ISA+27 or more)
Up to 27,000ft 400A
above 27,000ft 380A
Aux Gen:
Up to 18,000ft 150A
above 18,000ft 140A
APU gen:
Up to 16,000ft 400A
above 16,000ft 290A
Max battery Temperature
70’C
Flight load limits
-1g to +2.8g Flaps up
0g to 2g with flap extended
Landing brake energy chart Exceeded limit
Takeoff can not be planned for 26min
Icing conditions speed limit
Flaps and gear up 165kts
Flaps 15 gear up 140kts
Autopilot and yaw damper Limits
Off for takeoff and landing and bellow 200ftAGL
To engage autopilot:
min 110kts
or
min 120kts single engine
Max EGT for APU during start
974’C @50% RPM
732’C @90%RPM
Minimum speed to start the APU in flight
135kts
Stable approach Criteria?
The airplane should be stabilised at 1000 ft HAA if in IMC and non-normal
conditions, and no lower than 500 ft HAA if in VMC conditions. A approach on
the EMB120 is considered stabilised when all of the following criteria are met:
– The airplane is on the correct flight path,
– Only small changes in heading and pitch are required to maintain the
correct flight path,
– Fly ILS approaches within one dot of the glideslope and localizer,
– The airplane approach speed is VREF + Wind Correction, not exceeding
VREF +20 kt and not less than VREF,
– The airplane is in the correct landing configuration,
– Sink rate is no greater than 1000 ft/min; if an approach requires a sink
rate greater than 1000 ft/min, conduct a special briefing,
– Power setting is appropriated for the airplane configuration,
– All briefings and checklists have been conducted.
Baggage compartment weight limits
700 kg total A +B compartment
XUB:
550kg total A+B
Oxygen pressure required:
Pilot + Copilot
Pilot + Co pilot + Observer
+
XUB
1300psi Pilot + Copilot
1470psi Pilot + Co pilot + Observer
1270psi Pilot + Copilot
1780psi Pilot + Co pilot + Observer
How many Static wicks are required?
5 on each aileron
4 on each elevator
2 on the rudder
only one can be missing from any control surface
How many Vortex generators are there?
13 pairs on each wing
7 pairs on the rudder
4 each side of the vertical stab
4 each side under the horizontal stab
1 large on the right wing root
