ERJ 175 Limitations Flashcards
Max Ramp Weight?
85,870
-420 for LL
Max take off weight
85,517
-420 LL
Max Landing Weight
74,957
Max Zero Fuel Weight
69,886
-420 LL
Min Runway Width
100 Ft
Min runway width cleared?
80 ft
Min Taxi Width
50 Ft
Wing Span / Length / Tail Height
93’ 11” / 103’ 11” 32’ 4”
Max Operations
41,000
Max T/O and Land
10,000 but our QRH only provides data up to 8,000
Max Temp T/O and Land
ISA + 35 (52ºC)
Min Temp T/O and Land
-40ºC
Rwy Slope
+/-2%
Max Tail Wind
15 kts
Max Single Pack Operations
31,000
Max Landing gear retraction / extension
250 kts
V tire
195
V rat
Min to deploy - 150kts
Min to generate electrical power 130 kts
Turbulence Penetration Speed (Vb)
Below 10,000 - 250 kts
Above 10,000 - 270 / .76 (whichever is lower)
V wipers
250 knots
V window
160 knots
Flap speeds
1 - 230 2 - 215 3 - 200 4 | 5 - 180 Full - 165
Max Crosswind Takeoff
Dry - 38 Wet - 31 Compact snow - 20 Dry Snow -> Standing Water - 18 Ice - 12
Crosswind Limitations Landing
RCC 6 - 38 RCC 5 - 31 RCC 4 - 20 RCC 3 -15 RCC 2 - 12 RCC 1 -8 RCC 0 - N/A
Is a static takeoff with a crosswind component greater than 25kts advisable?
No, not recommended due to compressor stall possibility
Max altitude Slats / Flaps Extended
20,000
Cat II Flap and Wind Limitations
Flap 5, 12 kts
What are the flap settings for go around flaps?
Flap 5 - Flap 2
Flap Full - Flap 4
Battery Limitations
Min voltage 22.5
21-22.4 the batteries can be charged using any AC source including engine taxi (table in SOPM expanded safety and power up checklist)
Below 21 write it up
Engine start limitations
GROUND Starts 1 & 2 - 90 seconds on, 10 seconds OFF Start 3 - 5, 90 seconds on, 5 minute OFF AIR 1&2 - 120 seconds on, 10 seconds OFF 2-5 120 seconds on, 5 minutes OFF
Dry Motoring Limits
1 - 90 seconds ON, 5 minutes OFF
2-5 30 seconds ON, 5 Minutes OFF
After 5 sequential attempts, the process may be repeated following a 15 minute cool down period
Can you take off without ATTCS armed?
What do you do if it’s armed on take off but it doesn’t activate?
No, abort the takeoff
Max Fuel Capacity
20,935
Max Fuel Imbalance
794
Min fuel temp
-37ºC
Can you take off with the FUEL IMBALANCE EICAS message?
When will the EICAS message populate?
When will it extinguish?
Yes. As long as the imbalance does not exceed 794 lbs
The EICAS message illuminates at 800 lbs and will extinguish at 100
Can you land with the Fuel Crossfeed On?
No - it must be off for takeoff and landing. This is essential when we do Single engine approaches and missed approaches
How long after establish power to the aircraft do you need to wait to start the APU?
How long can you leave the aircraft with the APU running?
30 seconds - after verifying there are no fire protection faults
5 minutes
APU Start Cycle
1&2 6 seconds off
3 - 5 minutes off
APU Start temperature limitations
Min - -54ºC
Max ISA + 35
Max APU Start Altitude
30,000
Max APU use Altitude
33,000
Max Electrical Generator Use Altitude
33,000
Max APU engine start altitude?
21,000
Max APU bleed use?
15,000
Pressurization Limits: Max Differential Pressure? Max Differential Over Pressure? Max Differential Negative Pressure? Max Differential Pressure for T/O and Landing?
- 4
- 8
- 0.5 - 2
Min Hydraulic Reservoir Temp for Engine Start?
-18ºC
Max Brake Temp for T/O?
Green
After selecting reverse thrust, what do you need to see in order to move the thrust reversers back into the forward range?
REV in amber or green
When is use of the thrust reversers prohibited?
During normal taxi and for power back
When do you need to select Anti Ice to Engine? When are the bleeds providing Anti Ice to the engines?
When the outside air temperature is between 5-10ºC and visible moisture up to 1700 AFE, or when operating on ramps, taxiways or runways with surface snow, ice, standing water, or slush that may be ingested by or freeze on the engines, nacelles or sensor probes.
Anti Ice is provided on engine start.
When do you need to select Anti Ice to ALL? When are the bleeds providing Anti Ice to the engines and the wings?
Anti Ice needs to be set to all when the OAT is less that 5ºC and visible moisture up to 1700 AFE, or when operating on ramps, taxiways or runways where surface snow, ice ,standing water or slush may be ingested by or freeze on the engines or probes.
Engine anti ice turns on with engine start; the engine bleeds are commanded open and heat the 3 outboard leading edges of the wings when wheel speed is above 40 kts.
Autopilot limitations:
Min engagement?
Min use?
Min use non-precision approach?
400’
50’
MDA
