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P-3C Engine Turn (T56-A-14) > Limits > Flashcards

Limits Flashcards

0
Q

Hot Start TIT

A

830°-850°C

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1
Q

“Start” TIT

A

750°-830°C

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2
Q

Hot Start (Engine Inspection Required)

A

> 965°C

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3
Q

Cold Start TIT

A

<750°C

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4
Q

Cold Start TIT (Cease Engine Operation)

A

<720

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5
Q

“Start” Oil Pressure Indication

A

35% RPM

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7
Q

“Low RPM” TIT

A

410°-730°C

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8
Q

“Low RPM” RPM

A

71-73.8

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9
Q

“Low RPM” RGB Oil Pressure

A

50-250 (start and warmup)

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10
Q

“Low RPM” P/S Oil Pressure

A

100 (Start and Warmup)
50-60
*operation below 50 permitted (if within limits at 100°RPM)

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11
Q

“LOW RPM” Oil Temprature

A

60°-90°

  • 100° (30 min in BETA) (5 min in ALPHA)
  • 40°
  • operation below 60° in cold weather permitted (oil press within limits)
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12
Q

“Low RPM” SHP

A

Minimum until oil temp is above 0°C

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13
Q

“Normal RPM” TIT

A

445°-645°C

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14
Q

“Normal RPM” RPM

A

96.3-99.1

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15
Q

“Normal RPM” RGB Oil Pressure

A

150-250 (start and warmup)

*operation below 150 permitted (RPM<100)

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16
Q

“Normal RPM” P/S Oil Pressure

A

100 (Start and Warmup)
50-60
*operation below 50 permitted (if within limits at 100°RPM)

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17
Q

“Normal RPM” Oil Temprature

A

60°-90°

  • 100° (30 min in BETA) (5 min in ALPHA)
  • 40°
  • operation below 60° in cold weather permitted (oil press within limits)
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18
Q

“Normal RPM” SHP

A

1,000 max at oil temp 0°-40°C

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19
Q

“Max Reverse 0°” TIT

A

580°-790°C

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20
Q

“Max Reverse 0°” RPM

A

96.7-104.9

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21
Q

“Max Reverse 0°” RGB Oil Pressure

A

150-250

*operation below 150 permitted (RPM<100)

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22
Q

“Max Reverse 0°” P/S Oil Pressure

A

100 (Start and Warmup)
50-60
*operation below 50 permitted (if within limits at 100°RPM)

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23
Q

“Max Reverse 0°” Oil Temprature

A

60°-90°
*100° (30 min in BETA) (5 min in ALPHA)
40°
*operation below 60° in cold weather permitted (oil press within limits)

24
Q

“Max Reverse 0°” SHP

A

1,000 max at oil temp 0°-40°C

25
Q

“Flight Idle 34°” TIT

A

430°-705°C

26
Q

“Flight Idle 34°” RPM

A

94.5-98.4

27
Q

“Flight Idle 34°” RGB Oil Pressure

A

150-250

*operation below 150 permitted (RPM<100)

28
Q

“Flight Idle 34°” P/S Oil Pressure

A

100 (Start and Warmup)
50-60
*operation below 50 permitted (if within limits at 100°RPM)

29
Q

“Flight Idle 34°” Oil Temprature

A

60°-90°

*100° (30 min in BETA) (5 min in ALPHA)

30
Q

“Flight Idle 34°” SHP

A

1,000 max at oil temp 0°-40°C

31
Q

“Max 90°” TIT

A

1077 (5 min max)

3rd red line

32
Q

“Max 90°” RPM

A

100 +/- 1

*momentary overshoot with power levers advanced allowed 96-106

33
Q

“Max 90°” RGB Oil Pressure

A

250-150

34
Q

“Max 90°” P/S Oil Pressure

A

50-60

35
Q

“Max 90°” Oil Temprature

A

60°-90°
*100° (30 min in BETA) (5 min in ALPHA)
40°
*operation below 60° in cold weather permitted (oil press within limits)
*when 40° is reached and RGB show no fluctuation, max power can be applied

36
Q

“Max 90°” SHP

A

4,600

5,300 (3 seconds)

37
Q

T56-A-14 Starter Duty Cycle

A

1 min on - 1 min off
1 min on - 5 min off
1 min on - 30 min off

38
Q

Fuel and Ignition Switches limits

A
  • TIT below 200°C
  • No Rotation
  • Power Levers in Ground Start
  • BETA Light on
39
Q

Engine Shutdown wait period in Low RPM

A

2 minutes

40
Q

-10 APU EGT

A
  • 649 Continuous
  • 710 Max Continuous (10 seconds)
  • 732 Max Peak
41
Q

APU RPM

A

98-102 (ground)

98-103 (flight)

42
Q

Ground Air Duct Limits

A

5°-40°C

43
Q

Normal Bleed Air Manifold Pressure prior to START

A

50 PSI

44
Q

APU Overspeed Automatic Shutdown

A

106

45
Q

What is the minimum bleed air manifold pressure at 16% RPM

A

25psi

Secure fuel and ignition switch if manifold pressure is less than 25psi at 16% rpm

46
Q

During engine starts, when does fuel flow rise occur?

A

16%

47
Q

At 16% fuel flow rises between ____ to ____ pph then drops to approximately ____ pph after ____ seconds.

A

700-1200 pph

500 pph after 2 seconds

48
Q

When does lightoff occur (rise in tit)?

A

Between 16 and 33 percent (usually 24)

49
Q

During engine starts, when does EDC PRESS LOW light go out?

A

Between 16 and 65 percent (usually 35)

50
Q

During engine starts, when is oil pressure rise indicated on RGB and P/S indicators?

A

35 percent

51
Q

During engine starts, when are you required to pull the starter?

A

57-64 percent

If prematurely pulled before 57, start may continue unless stagnant start occurs. Then no more starts may occur

52
Q

During engine starts, when do parallel pumps light up?

A

Between 16-65 percent (usually 35)

53
Q

During engine starts, when do parallel pump lights go out?

A

65 percent

54
Q

During engine starts when does fuel press low light go out?

A

By low RPM

55
Q

During engine starts, when does air manifold drop indicate?

A

At 16 percent, the valve failed to close.

56
Q

During engine atarts, when do 5th and 10 stage bleed air valves close?

A

94 percent

57
Q

What are the parameters for priming the engine prior to start?

A
  • do not use if residual TIT is above 100°C
  • if previous start went overtemp
  • (if a successful start cannot be completed, a second start may be attempted using prime)

P-3C Engine Turn (T56-A-14) (9 decks)

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