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B412 AOI > Power Plant Limitations > Flashcards

Power Plant Limitations Flashcards

1
Q

N1 (gas producer rpm) – Twin engine operations —> x% to x% - Continuous operations

A

61% to 103,1% - Continuous operations

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2
Q

N1 (gas producer rpm) – Twin engine operations - x% - Maximum continuous

A

103,1% - Maximum continuous

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3
Q

N1 (gas producer rpm) – One engine inoperative

x% - Continuous

A

103,7% - Continuous

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4
Q

N1 (gas producer rpm) – One engine inoperative

x% to x% - Two and a half minutes

A

103,7% to 109,2% - Two and a half minutes

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5
Q

N1 (gas producer rpm) – One engine inoperative

x% - Maximum

A

109,2% - Maximum

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6
Q

N2 (engine rpm)
xx% - Minimum in cruise at or below 6 000 feet HD

100% - Minimum for hover, takeoff, and climb
- Minimum in cruise above 6 000 feet HD
97% to 100% - Continuous operations
100% - Maximum above 30% QE
100% to 103% - Operation at or below 30% QE
103% - Maximum at or below 30% QE

A

97%

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7
Q

N2 (engine rpm)

xxx% - Minimum for hover, takeoff, and climb

A

100%

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8
Q

N2 (engine rpm)

Continuous operations

A

97% to 100%

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9
Q

N2 (engine rpm)

Maximum above 30% QE

A

100%

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10
Q

N2 (engine rpm)

Maximum above 30% QE

A

100% to 103%

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11
Q

N2 (engine rpm)

Maximum at or below 30% QE

A

103%

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12
Q

QE (engine torque) – One engine inoperative

Continuous operations

A

5% to 73,2%

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13
Q

QE (engine torque) – One engine inoperative

Maximum continuous

A

73,2%

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14
Q

QE (engine torque) – One engine inoperative

Two and a half minutes

A

73,2% to 81%

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15
Q

QE (engine torque) – One engine inoperative

Maximum

A

81%

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16
Q

ITT (inter-turbine temperature) – Twin engine operations

Continuous operations

A

300 °C to 810 °C

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17
Q

ITT (inter-turbine temperature) – Twin engine operations

Maximum continuous

A

810 °C

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18
Q

ITT (inter-turbine temperature) – Twin engine operations
Maximum transient
- Do not exceed five seconds above 810 °C

A

940 °C

19
Q

ITT (inter-turbine temperature) – Twin engine operations
Maximum for starting
- Do not exceed two seconds above 960 °C

A

1 090 °C

20
Q

ITT (interturbine temperature) – One engine inoperative – Maximum continuous

A

820 °C

21
Q

ITT (interturbine temperature) – One engine inoperative – Two and a half minutes

A

820 °C to 940 °C

22
Q

ITT (interturbine temperature) – One engine inoperative – Maximum

A

940 °C

23
Q

Engine oil pressure – Minimum for idle

A

40 psi

24
Q

Engine oil pressure – Operation below 79% N1

A

40 psi to 80 psi

25
Q

Engine oil pressure – Continuous operations

A

80 psi to 115 psi

26
Q

Engine oil pressure – Maximum

A

115 psi

27
Q

Combining gearbox oil pressure - Minimum for idle

A

40 psi

28
Q

Combining gearbox oil pressure - Operation below 94% N2
60 psi to 80 psi - Continuous operations
80 psi - Maximum

A

40 psi to 60 psi

29
Q

Combining gearbox oil pressure - Continuous operations

A

60 psi to 80 psi

30
Q

Combining gearbox oil pressure - Maximum

A

80 psi

31
Q

Engine and combining gearbox oil temperature

Minimum

A

0 °C

32
Q

Engine and combining gearbox oil temperature

Continuous operations

A

0 °C to 115 °C

33
Q

Engine and combining gearbox oil temperature

Maximum for MIL-PRF-7808 oil

A

115 °C

34
Q

Engine and combining gearbox oil temperature

Maximum for MIL-PRF-23699

A

120 °C

35
Q
  • Transmission limitations -
    Transmission oil pressure

-> Minimum

A

30 psi

36
Q
  • Transmission limitations -
    Transmission oil pressure

-> Minimum at Idle

A

30 psi to 40 psi

37
Q
  • Transmission limitations -
    Transmission oil pressure

-> Continuous operations

A

40 psi to 70 psi

38
Q
  • Transmission limitations -
    Transmission oil pressure

-> Maximum

A

70 psi

39
Q
  • Transmission limitations -
    Transmission oil temperature
  • Continuous operations
A

15 °C to 110 °C

40
Q
  • Transmission limitations -
    Transmission oil temperature
  • Maximum
A

110 °C

41
Q

QM (mast torque) – Twin engine operations

- Maximum with airspeed above 105 KIAS

A

81%

42
Q

QM (mast torque) – Twin engine operations

  • Takeoff
  • Maximum five minutes
A

81% to 100%

43
Q

QM (mast torque) – Twin engine operations

  • Maximum with airspeed up to 105 KIAS
A

100%

B412 AOI (1 decks)

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