E175 Aircraft Limitations Flashcards
Maximum Ramp Weight (MRW)
85870lbs
Maximum Takeoff Weight (MTOW)
85,517lbs
Maximum Landing Weight (MLW)
74,957lbs
Maximum Zero Fuel Weight (MZFW)
69,886lbs
Maximum Takeoff and Landing Tailwind
10kts
Maximum Runway Slope
+/-2 degrees
G Limits
Flaps up -1.0G - +2.5G Flaps down (any setting) 0G - +2.0G
Maximum Operating Altitude
41,000’
Maximum TOL altitude
8,000’
Minimum TOL altitude
-1000’
Maximum Air Temperature for TOL’s
52 degrees Celcius
Maximum Flap Extension Altitude
20,000’
Maximum Latitude for Stationary Alignment
+/-78.25 degrees North or South
When landing below ______ degrees Celcius, you may not takeoff without further maintenace inspection
-40 degrees Celcius (SAT)
Minimum Operating Air Temperature
-54 degrees Celcius
Maximum Operating Mach Number (MMO)
0.82M
Maximum Operating Airspeed
VMO
Maximum Airspeed for Ram Air Turbine (RAT) operation
VMO/MMO
Turbulent Airspeed below 10,000’
250kias
Turbulent Airspeed at or above 10,000’
270kias/0.76M
Maximum Tire Limit Ground Speed
195kias
Maximum Windshield Wiper Operation Speed
253kias
Maximum Landing gear extension/extended/retraction speed
250kias for all
Vloe = landing gear extension
Vle = landing gear extended
Vlor = Landing gear retraction
Flaps 1 Speed limit
230kias
Flaps 2 Speed Limit
215kias
Flaps 3 Speed limit
200kias
Flaps 4 Speed limit
180kias
Flaps 5 Speed Limit
180kias
Flaps Full Speed Limit
165kias
Maximum Operating Speed up to 8000’
300kias
Maximum Operating Speed from 8,000’-10,000’
300-320kias increasing linearly with altitude
Maximum Operating Speed from 10,000’-FL290
320kias (VMO)
Maximum Operating Speed from FL290-FL410
0.82M (MMO)
Definition of Icing conditions
Icing conditions exist whenever the OAT on the ground for takeoff, or Total Air Temperature (TAT) inflight, is 10°C or below, and visiible moisture in any form is present (such as clouds, fog with a visibility of 1sm or less, rain, snow, sleet, an ice crystals).
Maximum Fuel Capacity (total)
20,935lbs total with 20,785 usable (10392.5lbs or 1535.5 usable US gallons per side)
Unusuable Quantity per tank
75lbs
Maximum Fuel Imbalance
794lbs (rounded to 800lbs)
Minimum Fuel Temperature
-37ºC
Crossfeed operations
Must be OFF for takeoff and landing
Maximum Differential Pressure
8.4PSI
Maximum Differential Overpressure
8.8psi
Maximum Differential Negative pressure
-0.5psi
Maximum Differential Pressure for Takeoff
0.2psi
Maximum Altitude for single Pack Operation
FL310
Maximum Brake Temperature for takeoff
Cannot takeoff with temperatures in the amber range
Thrust Reverser Limitations
- Ground use only
- Not authorized while taxiing
- Full stop landings only
- No go-arounds after deployment
- Power-back is prohibited
- Minimum reverse thrust must be used with the translating cowl open below 60kias
- Idle thrust with the translating cowl closed at 30kias
Autopilot Minimum Engagement Height
400’AGL per Embraer, 1000’AGL per Mesa Airlines CFM
Autopilot Minimum Use Height
50’AGL on a coupled ILS approach
Embraer 175 engine type
General Electric CF34-8E5
Maximum TOGA power time (both engines operting)
10 minutes
Flex takeoff minimum thrust setting
No less than 25% less than full takeoff thrust
When can a flex takeoff be performed?
Only on an uncontaminted runway
When must ATTCS (automatic takeoff thrust control system) be on?
For all takeoffs and landings
Engine starter duty llimits
- 1st and 2nd attempts: 90* seconds on / 10 seconds off
- 3rd through 5th attempts: 90* seconds on / 5 minutes off
- = 120 seconds while in flight
Dry Motoring Cycle Duty Limits
- 1st attempt: 90 seconds on / 5 minutes off
- 2nd-5th attempt: 30 seconds on / 5 minutes off
- After 5th attempt, 15 minutes are required before the cycle can be repeated
APU starter Duty Cycle
- 1st and 2nd attempts: 1 minutes on / 1 minute off
- 3rd attempt: 1 minute on / 5 minutes off
APU minimum start temperature and altitude
-54ºC and 30,000’
APU altitude and other limitations
- Max operating altitude: 33,000’
- Max bleed altitude: 15,000’
- Max engine start assist altitude: 21,000’
- No APU time limit between 662-717ºC (amber range)
- In flight there is no automatic APU shut down if EGT exceeds limits
What is the difference between SAT and TAT?
SAT is Static Air Temperature, or the temperature of undisturbed air arounds the aircraft (i.e. OAT). TAT is Total Air Temperature which is the Static Air Temperature plus the temperature rise associated with high-speed flight. TAT can be measured by probe on the outside of the aircraft as the high speed causes adiabatic compression and heating of the air around the temperature probe. Knowing TAT, SAT can be computed which is required to calculate True Airspeed.
When is TAS, TAT, and SAT accurate?
Above 60kias
When is the standby compass not valid/trustworthy?
When transmitting on VHF #1
Which kind of approaches cannot be done using IESS (Integrated Electronic Standby System, i.e. backup instruments)?
LOC back course approaches