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KC-135 Study > Ops Limits > Flashcards

Ops Limits Flashcards

Learn the operational limits of the KC-135R

1
Q

What is the gear airspeed limit during extension or retraction?

A

270 KIAS below FL380 0.85M above FL380

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2
Q

What is the gear airspeed limit when extended?

A

320 KIAS below 30,500 ft 0.85M above 30,500 ft

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3
Q

Cabin Differential (Maximum)

A

9.42 psi

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4
Q

Cabin Differential (Caution Range)

A

8.6 to 9.42 psi

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5
Q

What is the engine parameter that indicates thrust?

A

N1 rpm

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6
Q

N1 rpm for TRT will vary up to

A

102% rpm

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7
Q

How high can N1 rpm for TRT be and continue to the next landing

A

102.1 to 105% retard the throttle to bring the N1 rpm within limits

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8
Q

How high can N1 rpm for TRT be before requiring engine shutdown

A

> 105% rpm, use the Precautionary/Practice Engine Shutdown Checklist

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9
Q

N2 rpm for TRT will vary up to

A

105% rpm

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10
Q

How high can N2 rpm for TRT be and continue to the next landing

A

105.1% - 106% rpm

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11
Q

How high can N2 rpm for TRT be before requiring engine shutdown

A

> 106% rpm, use the Precautionary/Practice Engine Shutdown Checklist

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12
Q

Max continuous EGT range is

A

610 - 870 degrees C

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13
Q

EGT in what range is limited to 5 minutes

A

870 - 905 degrees C

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14
Q

EGT in what range requires you to retard the throttle to bring it within limits

A

906 - 930 degrees C, operation is allowed to the next landing

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15
Q

EGT greater than what value requires engine shutdown

A

> 930 degrees C, use the Engine Fire/Failure During Flight Checklist

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16
Q

N1 ground idle limit is

A

16 - 22%

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17
Q

N2 ground idle limit is

A

54 - 62%

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18
Q

Normal oil pressure limit is

A

11 - 92 psi, it cannot fluctuate outside of this range

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19
Q

Normal oil fluctuation limit is

A

+/-5 psi (10 psi total)

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20
Q

Oil tempurature limit for 10 minutes is

A

160 - 175 degrees C

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21
Q

What oil tempurature requires engine shutdown unless needed for flight

A

> 175 degrees C, use the Precautionary/Practice Engine Shutdown Checklist

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22
Q

Starter duty cycle for starting (throttle in start)

A

90 seconds of maximum continuous operation

Max of 3 consecutive 90 second start attempts

60 seconds cooling required between start attempts

5 minutes cooling required after 3 start attempts

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23
Q

Duty Cycle for Motoring (Throttle in CUT-OFF)

A

5 minutes of maximum continuous operation.

10 minutes cooling required after first motoring.

30 minutes cooling required after subsequent motoring.

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24
Q

The duty cycles for starting and motoring are cumulative: that is, if a start attempt is aborted after 90 seconds, the starter can remain engaged for a maximum of how many additional minutes

A

only 3 1/2 additional minutes

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25
Q

When starting engines with a tailwind component greater than __ knots, do not advance the throttles to START until N2 rpm is at least __ and the fan (n1) is rotating in the correct direction.

A

20 knots

20 % N2 rmp

26
Q

Do not operate the landing lights more than how many minutes on the ground

A

5 minutes

27
Q

During ground operation of the taxi light, you should try to avoid light operation of more than how many minutes

A

15 minutes

28
Q

Continuous N1 limit

A

78 to 95.8 %

29
Q

Maximum N1 limit

A

102%

30
Q

N2 continuous operations limit

A

89 to 95 %

31
Q

N2 Maximum limit

A

105%

32
Q

Maximum EGT for starting

A

725 degrees C

33
Q

Oil pressure for starting

A

Positive Indication

34
Q

Minimum EGT for flight idle

A

390 degrees C

35
Q

Maximum EGT for Takeoff

A

905 degrees C, limited t 5 minutes

36
Q

Battery caution ranges

A

<= 24 Volts or < 29 Volts

37
Q

Battery Normal Operating Range

A

0 to 7 amps

38
Q

TR1/2 Caution Ranges

A

< 24 Volts and > 30 Volts

39
Q

TR 1/2 Nomal Operating Range

A

24 - 30 Volts

40
Q

Battery Charging Ammeter Normal Range

A

0 - 7 amps

41
Q

Battery Charging Ammeter Low Battery Range

A

7 - 30 amps

42
Q

Maximum AC Voltmeter Reading

A

180 volts

43
Q

AC Voltmeter Caution Ranges

A

180 - 190 volts

210 to 220 volts

44
Q

AC Voltmeter Normal Range

A

200 +/- 10 volts

190 - 210 volts

45
Q

Maximum AC Voltmeter Reading

A

220 Volts

46
Q

Minimum AC Frequency

A

380 Hz

47
Q

AC Frequency Caution Ranges

A

380 to 395 Hz

405 to 420 Hz

48
Q

AC Frequency Normal Operating Range

A

395 to 405 Hz

49
Q

Maximum AC Frequency

A

420 Hz

50
Q

Accumulator Preload for 70 degrees F

A

2000 psi

51
Q

Hydralic Pressure Normal Operating Range

A

2400 - 3050 psi

52
Q

Maximum Hydralic Pressure

A

3050 psi

53
Q

Rudder Hydralic Low Range

A

2100 to 2400 psi

54
Q

Rudder Hydralic High Range

A

2800 to 3050 psi

55
Q

At what pressure is only one brake application available

A

1300 psi

56
Q

Normal Reserve Brake Pressure Range

A

1300 - 3050 psi

57
Q

Right System Hydralic Quantity Range

A

4.0 - 4.5 gal

58
Q

Left Sysem Hydralic Quantity Range

A
  1. 75 - 4.25 gal, with gear doors open
  2. 0 - 4.5 gal, with gear doors closed
59
Q

AOA Caution Range (approaching buffet)

A

0.85 - 0.91

60
Q

AOA Buffet/Stall Range

A

0.91 to 1.10 AOA

61
Q

Maximum Flap Speeds

A

Flaps 50۫ 200 KIAS
Flaps 40۫ 210 KIAS

Flaps 30۫ 220 KIAS

Flaps 20۫ 230 KIAS

KC-135 Study (6 decks)

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