ERJ-175 Limitations Flashcards
Emergency Fuel
- EMERGENCY fuel - 1,500 LB
- Landing with less than 30 mins of fuel
- Emergency fuel provides 30 minutes of fuel endurance based upon 1,500 ft AFE / Green Dot / Clean.
Minimum fuel
- Minimum fuel - 2,250
- Minimum fuel provides 45 minutes of fuel endurance based upon 1,500 ft AFE / Green Dot / Clean.
How do you know when you have low fuel?
The fuel indicators turn amber when fuel in the respective tank drops below 1,320 lb (2,640 lb total).
Battery minimum voltage
22.5 V
Minimum oil pressure for start
25 psi
Max fuel compactly
20,935 lbs
Max fuel imbalance
794 lbs (It is permissible to takeoff with a “fuel imbalance” annunciation as long as it doesn’t exceed 794 lbs
Min fuel tank temp
Minus 37 degrees Celsius
Fuel cross feed for takeoff?
Fuel crossfeed must be selected OFF during takeoff and landing.
APU Start Temperature operational limits
-54 degrees Celsius
ISA +35 degrees
APU Start Altitude Operational Limits
30,000’
Planned reserve fuel
Calculated at 45 mins at 15,000 ‘ and a cruise speed of 250 kias
E175 - 2,450 lbs
Planned Hold Fuel
Calculated at planned landing weight and 10,000’ above the destination airport
Engine start attempts limitations
Start 1&2: 90 seconds on, 10 seconds off
Start 3-5: 90 seconds ON, 5 minutes OFF
Increase start attempt time to 120 seconds if in flight
Electrical systems: Integrated drive generators
An IDG consists of the integration of a constant speed drive and an AC generator to supply constant frequency AC power to the aircraft.
They are engine driven and directly connected to the engine output via a set of gear boxes
Max takeoff weight (MTOW)
175LL - 85,098 lbs
175LR - 85,517 lbs
Max Landing weight
Both 74,957 lbs
Max ramp Weight
175 LL - 85, 450 lbs
175 LR - 85,870 lbs
Max zero fuel weight
175 LL - 69,467 lbs
175LR - 69,886 lbs
Wing span
93’11”
A/C length
103’11”
Tail height
32’4”
Max operating Altitude
FL410
Max altitude to takeoff and land
8,000’
