ERJ-145 Limitations Flashcards Preview

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Flashcards in ERJ-145 Limitations Deck (29)
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1
Q

WEIGHTS

A

Max Ramp Weight……………………..53351
Max Takeoff Weight……………………53131
Max Landing Weight…………………..44092
Max Zero Fuel Weight…………………40785

2
Q

SPEEDS

A

Vlo retraction….200KIAS Vfe9…..250KIAS
Vlo extension….250KIAS Vfe18…200KIAS
Vle…………………250KIAS Vfe22…200KIAS
Va………………….200KIAS Vfe45…160KIAS

Max Airspeed after Takeoff/During Climb without Trimming……160KIAS
Maximum Tailwind…..10KIAS
Maximum windshield wiper speed….170KIAS

3
Q

LOAD FACTOR LIMIT

A

FLAPS UP Positive…..2.5g
Negative…-1g

FLAPS DOWN Positive…..2.0g
Negative…0g

4
Q

FUEL

A

WING TANKS
Max Capacity…….5,717lbs per tank
Unusable…………..39lbs per tank
If any electric fuel pump is inoperative, increases to
365 lbs unusable per tank

VENTRAL TANK Max Usable…….1,863lbs
Unusable………..21lbs

TANK TEMPS Minimum…………-40C
Maximum………..52C

Max Fuel Imbalance………..800lbs

5
Q

APU

Altitude

A

Max Operating Altitude………..37,000’

Max Altitude for Start…………..30,000’

6
Q

ENGINE

A

ROLLS ROYCE AE3007A1E

N1 Max……..100%
N2 Max……..103.7%

7
Q

ENGINE

ITT

A

START………………800C

CONTINUOUS…..935C

8
Q

ENGINE

ITT TAKEOFF TEMP LIMITS

A

970C……………..limited to 5 minutes
971-992C………limited to 90 seconds
992C……………..Maximum

9
Q

ENGINE

OIL PRESSURE

A

Below 88% N2………………….34-110psi
Above 88% N2………………….48-110psi*
*34-48 psi allowed during takeoff and
go-around

10
Q

ENGINE

OIL TEMP

A

Minimum……………………..21C

Maximum……………………126C

11
Q

ENGINE

VIBRATIONS

A

LP Maximum…………………..1.8

HP Maximum…………………..1.1

12
Q

ENGINE

WARM UP TIME -PRIOR TO TAKEOFF

A
  • 4 minutes for cold engine (shutdown for 90 minutes)
  • 2 minutes for warm engine
  • Minimum oil temperature for takeoff 40C OR run engine for 8 minutes and verify 21C or greater
13
Q

ENGINE

COOL DOWN TIME

A

Engine must run at idle or taxi thrust for 2 minutes prior to shutdown

14
Q

STARTER LIMITS

A

ON GROUND

Dry Motoring…..UP TO 5 MINUTES ON,
5 MINUTES OFF
First to Fourth Cycles……..1 MINUTE ON,
1 MINUTE OFF
Following Cycles……………1 MINUTE ON,
5 MINUTES OFF

IN FLIGHT
Maximum Continuous Operation Time…….5 MINUTES ON

15
Q

PRESSURIZATION

A

Max differential pressure…………..7.8psi
Max differential overpressure…….8.1psi
Max differential negative pressure…..-0.3psi

16
Q

ICING CONDITIONS

A

Max temperature for anti-icing equipment……..10C
Minimum temperature for anti-icing equipment….
…………………….-40C

17
Q

HOLDING CONFIGURATION

A

Gear…………………………………UP
Flaps………………………………..UP
Minimum Airspeed…………….200KIAS

18
Q

AUTOPILOT

A

Minimum Altitude during ILS Approach….200AGL
Minimum Engagement Height……….500’
Minutes Use Height………………………160’

19
Q

MISCELLANEOUS

Runway

A

Runway must be paved with +/-2% grade

20
Q

APU

Max Rotor Speed

A

108%

21
Q

APU

Maximum Starting Temperature

A

884C

22
Q

APU

Maximum Operating Temperature

A

680C (May be exceeded up to 717C for up to 5 minutes)

23
Q

APU

Starting Limits

A

Between 1-3 start attempts 1 min off

Between 3,4 start attempts 30 mins off

24
Q

Maximum Altitude for Flap Extension

A

20,000ft

25
Q

El. Generator MAX LOAD

A

400A

APU GEN above 30,000ft, 300A

26
Q

Maximum Battery Temperature

A

70C

27
Q

Minimum Total Air Temperature in cruise flight above 25,000ft

A

-45C

28
Q

Minimum battery temperature for APU start

A

-20C

29
Q

Minimum voltage for APU start

A

23.5 VDC