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ERJ 145 Systems > Limitations > Flashcards

Limitations Flashcards

1
Q

The maximum operating altitude for the EMB145 is

A

37,000 ft

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2
Q

The takeoff and landing maximum altitude for the EMB145 is

A

8,000 ft

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3
Q

What are the turbulent air penetration speeds

A

200 KIAS below 10,000 ft
250 KIAS/0.63 Mach whichever is lower above 10,000 ft

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4
Q

The maximum takeoff and landing tailwind component for the EMB145 is

A

10 kts

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5
Q

The maneuvering speed for the EMB145 is

A

200 KIAS

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5
Q

The takeoff and landing minimum altitude for the EMB145 is

A

-1,000 ft

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6
Q

What are the maximum operating weight limitations

A

Max Ramp Weight 48,722
Max Takeoff Weight 48,501
Max Landing Weight 42,549
Max Zero Fuel Weight 39,462

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7
Q

What are the minimum and maximum temperatures for takeoff and landing

A

Minimum Temperature -40 Celsius
Maximum Temperature ISA +35 Celsius

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8
Q

What is the maximum Mmo and Vmo

A

Mmo Mach 0.78
Vmo 250 KIAS to 8,000 ft, 320 KIAS above 10,000 ft

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9
Q

What are the landing gear operating airspeed limitations

A

Vlo Extension 250 KIAS
Vlo for retraction 200 KIAS
Vle 250 KIAS

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10
Q

What are the flap operating airspeed limitations

A

Vfe:
Flap 9 is 250 KIAS
Flap 18/22 is 200 KIAS
Flap 45 is 145 KIAS

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11
Q

What is the maximum altitude for flap extension

A

20,000 ft

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12
Q

What is the maximum airspeed after takeoff/landing climb without trimming the horizontal stab

A

160 KIAS

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13
Q

What is the maximum airspeed to remove the DV windows

A

140 KIAS

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14
Q

What is the maximum crosswind for a dry and wet runway

A

Dry and Wet 30 kts

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15
Q

What is the maximum fuel tank temperature

A

52 Celsius

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16
Q

What is the maximum wing fuel imbalance

A

800 Ibs

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17
Q

What is the minimum fuel tank temperature

A

-40 Celsius

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18
Q

What is the minimum fuel temperature at the FCOC without icing inhibitor

A

4 Celsius

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19
Q

What is the maximum usable wing fuel

A

11,434 lbs

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20
Q

What is the unusable fuel for the wing tanks

A

39 lbs per tank
Up to 365 lbs per tank (electric pumps inoperative)

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21
Q

What is the maximum altitude for APU start

A

30,000 ft for C14 Post Mod
25,000 ft for Pre-Mod C11

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22
Q

What is the maximum altitude for APU operation

A

37,000 ft

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23
Q

What is the maximum APU rotor speed

A

108%

24
Q

What rotor speed causes an APU automatic shutdown

A

104% for C14 APU

24
Q

What is the maximum APU EGT for start

A

884 C for C11 and C14 except post Mod C11 may be exceeded up to 925 C for starts above 25,000 ft for 10 seconds

25
Q

What is the minimum battery temperature for APU start

A

-20 C

26
Q

What is the maximum continuous APU EGT

A

Continuous 680 C
Continuous for 5 minutes maximum 717C
May be exceeded up to 732 C for 3 seconds, for APU assisted in flight engine starting

27
Q

What are the APU start limitations

A

First 2 attempts - 1 minute off between starts,
3rd attempt - 30 minutes off
(Repeat this sequence for each series of 3 starting attempts)

28
Q

What is the maximum engine N1

A

100%

29
Q

What is the maximum engine N2

A

102.4%

30
Q

What is the maximum ITT for engine start

A

800 C

31
Q

What is the maximum engine ITT for takeoff

A

948 C (5 minute maximum

32
Q

What is the maximum continuous engine ITT

A

901 C

33
Q

What is the minimum engine oil pressure

A

34 psi below 88% N2
50 psi above 88% N2

34
Q

What is the maximum engine oil pressure

A

95 psi for pre-mod aircraft and 110 psi for post Mod aircraft steady state with temperature greater than 21 C
110 psi (5 minute transient)

35
Q

What is the minimum engine oil temperature for N2 above 83%

A

40 C

36
Q

What is the minimum engine oil temperature for starting

A

-40 C

37
Q

What are the minimum and maximum oil temperatures for continuous operation

A

Minimum 21 C
Maximum 126 C

38
Q

What are the engine start limitations

A

1st to 4th attempt - 1 minute on, 1 minute off
5th attempt - 1 minute, on 5 minute off

39
Q

What is the engine start limitation for dry motoring

A

Up to 5 minutes on 5 minutes off

40
Q

What is the engine warm up requirement

A

4 minutes for a cold engine
2 minutes for a warm engine

41
Q

When is an engine considered cold

A

When the engine has been shutdown for the more than 90 minutes

42
Q

What is the minimum engine oil temperature to increase N2 above 83%

A

40 C or run the engine for 8 minutes or run up the engine to 88% N2 and ensure oil pressure is equal or less than 83 psi

43
Q

What is the engine cool down requirement that must be met before engine shutdown

A

1 minute at idle and/or taxi speed before shutdown

44
Q

What is the maximum engine LP spool limitation

A

1.8 IPS

45
Q

What is the maximum engine HP spool limitation

A

1.1 IPS

46
Q

What is the maximum differential over pressure

A

8.1 psi

47
Q

What is the maximum differential pressure

A

7.8 psi

48
Q

What is the maximum differential negative pressure

A

-0.3 psi

49
Q

What is the maximum temperature for anti-icing operation

A

10 C

50
Q

What is the minimum temperature for manual anti-icing operation

A

-40 C

51
Q

What is the maximum altitude in icing conditions allowed for single engine or single bleed operations

A

15,000 ft

52
Q

What is the required configuration when holding in icing conditions

A

Landing gear up, flaps up, 200 KIAS minimum speed

53
Q

What conditions are considered icing conditions

A

10 C or less and visible moisture

54
Q

What is the minimum autopilot engagement height after takeoff

A

500 ft

55
Q

Autopilot coupled approaches are approved down to what altitude

A

200 ft AGL

56
Q

What are airplane load factor limitations for the flaps up and down

A

Flaps up -1.0G to 2.51G
Flaps down - 0G to 2.0G

ERJ 145 Systems (23 decks)

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