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UH-60A+ > Chapter 5 > Flashcards

Chapter 5 Flashcards

1
Q

Maximum wind velocity for rotor start or stop

A

45 knots from any direction

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2
Q

Power off rotor speed for maintenance test flights

A

120% RPM R

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3
Q

Engine Starter Limits

A
  • An interval of at least 60 seconds between the completion of one cycle and the beginning of the next
  • At 15 degrees and below, after two consecutive start cycles a 3 minute rest period is required. 2 additional starts may follow. A 30 min rest period is required for any additional starts
  • Above 15 up to 52 degrees, 2 consecutive starts may be made. A 30 min rest period is then required.
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4
Q

Crossbleed start requirements

A
  • # 1 and #2 ENG ANTI-ICE ON advisories not visible
  • operating engine 90% Ng
  • Rotor speed at 100% RPM
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5
Q

Engine Overspeed Check Limitation

A

Engine Overspeed check in flight is prohibited

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6
Q

Minimum Crew Requirements

A

Two pilots

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7
Q

Maximum Gross Weight

A

22,000 #

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8
Q

External Load Maximum Cargo Weight

A

8,000 #

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9
Q

Sideward/Rearward flight limitation

A

45 knots

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10
Q

SAS inoperative airspeed limits

A
  • 1 SAS inoperative: 170 KIAS
  • 2 SAS inoperative: 150 KIAS
  • 2 SAS inoperative in IMC: 140 KIAS
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11
Q

Hydraulic system inoperative limits

A
  • 1 hydraulic system inoperative: 170 KIAS
  • 2 hydraulic systems inoperative: 150 KIAS
  • 2 hydraulic systems inoperative in IMC: 140 KIAS
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12
Q

Landing light

A
  • Extension: 130 KIAS

- Extended: 180 KIAS

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13
Q

Searchlight

A
  • Extension: 100 KIAS

- Extended: 180 KIAS

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14
Q

Cabin doors

A
  • The doors will not be intentionally moved from the fully open or closed position in flight
  • Cabin doors may be fully open up to 145 KIAS
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15
Q

Stabililator Airspeed Limitations

A
  • Full down at or below 40 KIAS
  • Set at 0 degrees above 40 KIAS
  • Autorotation airspeed limited to 120 KIAS
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16
Q

MAIN XMSN OIL TEMP

Continuous:
Precautionary:

A

MAIN XMSN OIL TEMP

Continuous:. -50 - 105 C
Precautionary:. 105 - 120 C

17
Q

MAIN XMSN OIL PRESSURE:

Idle/Tans:
Continuous:
Precautionary:

A

MAIN XMSN OIL PRESSURE:

Idle/Tans:. 20 - 30 psi
Continuous:. 30 - 65 psi
Precautionary:. 65 - 130 psi

18
Q

ENGINE OIL TEMP

Continuous:
30 Min limit:

A

ENGINE OIL TEMP

Continuous:. -50 - 135 C
30 Min limit:. 135 - 150 C

19
Q

ENGINE OIL PRESSURE

Idle:
Normal:
5 Min Limit:

A

ENGINE OIL PRESSURE

Idle:. 22 - 26 psi
Normal:. 26 - 100 psi
5 Min Limit:. 100 - 120 psi

20
Q

TGT

Start Abort Limit:
Hot Start Protection:
Normal:
30 Min Limit:
10 Min Limit:
2.5 Min Limit:
12 Sec Transient:
A

TGT

Start Abort Limit:. 851 C
Hot Start Protection:. 900 C
Normal:. 0 - 810 C
30 Min Limit:  810 - 851 C
10 Min Limit:. 851 - 878 C
2.5 Min Limit:. 878 - 903 C
12 Sec Transient:. 903 - 949 C
21
Q

ENGINE Ng

Ground Idle:
Continuous:
30 Min:
12 Sec Transient:

A

ENGINE Ng

Ground Idle:. 63%
Continuous:. 0 - 99%
30 Min:. 99 - 102%
12 Sec Transient:. 102 - 105%

22
Q

ENGINE Np

Avoid Range:
Transient:
Continuous:
Transient:
12 Sec Transient:
A

ENGINE Np

Avoid Range:  20 - 40% and 60 - 90%
Transient:. 91 - 95%
Continuous:. 95 - 101%
Transient:. 101 - 105%
12 Sec Transient:. 105 - 107%
23
Q

MAIN ROTOR Nr

  • Power on
    Transient:
    Continuous:
    Transient:
- Power off:
Normal:
Transient:
Maximum:
FCF Maximum:
A

MAIN ROTOR Nr

  • Power on
    Transient: 91 - 95%
    Continuous:. 95 - 101%
    Transient:. 101 - 107%
- Power off:
Normal:. 90 - 105 %
Transient:. 105 - 110%
Maximum:. 110%
FCF Maximum:. 120%
24
Q

ENGINE TRQ

  • Continuous
    Dual Engine:
    Single Engine:
  • 10 Sec Transient
    Dual Engine:
    Single Engine:
A

ENGINE TRQ

  • Continuous
    Dual Engine:. 0 - 100%
    Single Engine:. 0 - 110%
  • 10 Sec Transient
    Dual Engine:. 100 - 125%
    Single Engine:. 110 - 135%
25
Q

ENGINE STARTER LIMITS

15 C and Below:

Above 15 C:

A

ENGINE STARTER LIMITS

15 C and Below:
- 2 starts / 3 min rest / 2 starts / 30 min rest

Above 15 C:
- 2 starts / 30 min rest

26
Q

SLOPE LANDING LIMITS:

Nose up, right, left:

Downslope:

10 deg slope angle:

15 deg slope angle:

A

SLOPE LANDING LIMITS:

Nose up, right, left:. 15 (reduce 2 deg/5 kts wind)

Downslope:. 6 degrees (not with tailwinds >15 kts)

10 deg slope angle:. Oil press 30-35 psi normal

15 deg slope angle:. Oil press 10-15 psi normal

27
Q

LANDING GEAR LIMITS

< 16,825:

> 16,825:

A

LANDING GEAR LIMITS

< 16,825:. 540 fpm level / 360 fpm slope

> 16,825:. 300 fpm level / 180 fpm slope

28
Q

MANEUVERING LIMITS

Hovering Turns:

Attitudes:

Bank Angle:

A

MANEUVERING LIMITS

Hovering Turns: < 30 deg / sec

Attitudes:. +/- 30 deg pitch and 60 deg roll

Bank Angle:. 30 deg with PRI SERVO PRESS caution

29
Q

STAB FAILURE

Full Down:

Level:

Auto Control Lost:

A

STAB FAILURE

Full Down:. 40 KIAS and Below

Level:. Above 40 KIAS

Auto Control Lost:.

  • Placard airspeed but not to exceed 120 KIAS
  • Autorotation airspeed limited to 120 KIAS
30
Q

APU OPERATING LIMITS

Engines / rotors operating:

Engines / rotors off:

APU OIL HOT:

A

APU OPERATING LIMITS

Engines / rotors operating:.
- 43 C and above for 30 min

Engines / rotors off:.
- Up to 51 C, continuously

APU OIL HOT: 30 min cooling before checking oil

31
Q

BACK-UP PUMP LIMITS

-54 - 32 C:

33 - 38 C:

39 - 52 C:

A

BACK-UP PUMP LIMITS

-54 - 32 C:. Unlimited

33 - 38 C:. 24 min operate, 72 min cool down

39 - 52 C:. 16 min operate, 48 min cool down

32
Q

SEARCH / LANDING LIGHT LIMITS

Search Light Extend:

Search Light:

Landing Light Extend:

Landing Light:

A

SEARCH / LANDING LIGHT LIMITS

Search Light Extend:. 100 KIAS

Search Light:. 180 KIAS

Landing Light Extend:. 130 KIAS

Landing Light:. 180 KIAS

33
Q

CABIN DOORS OPEN

Soundproofing:

Without Soundproofing:

Open / Close:

Gunner Open:

Gunner Transition:

A

CABIN DOORS OPEN

Soundproofing:. 100 KIAS

Without Soundproofing:. 145 KIAS

Open / Close:. In hover NOT in forward flight

Gunner Open:. 170 KIAS

Gunner Transition:. 120 KIAS

34
Q

SAS INOP

One SAS:

Two SAS:

Two SAS and IMC:

A

SAS INOP

One SAS:. 170 KIAS

Two SAS:. 150 KIAS

Two SAS and IMC:. 140 KIAS

35
Q

HYDRAULIC INOP

One HYD:

Two HYD:

Two HYD and IMC:

A

HYDRAULIC INOP

One HYD: 170 KIAS

Two HYD:. 150 KIAS

Two HYD and IMC:. 140 KIAS

UH-60A+ (4 decks)

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