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NATOPS > Limits > Flashcards

Limits Flashcards

0
Q

What is a start cycle?

A

Starter initiation, acceleration in Ng, and starter dropout/ disengagement.

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1
Q

What are the engines limited by?

A

Ng, Np, TGT, oil pressure, and oil temperature

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2
Q

A ________ second delay between start attempts is required any time a start is aborted, except during emergencies.

A

60

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3
Q

Crossbleed starts may be attempted with the operating engine at or above ______ percent Ng and rotor speed at ______ percent Nr.

A

94, 100

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4
Q

Caution:

Donor Ng of less than 94 percent may result in ___________.

A

Hot starts

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5
Q

TGT: W/ DECU

A 
0 to 810 C - continuous - green
810 to 851 C - 30 minutes - yellow
851 to 903 C - 2.5 minutes - red
903 to 949 C - 12 seconds - red
949 C - maximum - red
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6
Q

TGT w/ EDECU

A 
0 to 810 C - continuos - green
810 to 851 C - 30 minutes - yellow
851 to 878 C - 10 minutes (power checks) - yellow
878 to 903 C - 2.5 minutes - red
903 to 949 C - 12 seconds - red
949 C - maximum - red
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7
Q

Power turbine speed (Np)

A

101 to 120% - 12 seconds - yellow

120% - maximum - red

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8
Q

Caution:

Operating engine steady state between __________ Np or __________ Np may cause engine damage.

A

20 to 40%, 60 to 75%

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9
Q

Main rotor speed (Nr)

A 
<96% - avoid - red
96 to 101% - continuous - green
101 to 120% - precautionary - yellow
120% - maximum - red
127%, 137%, and 142% - overspeed latch - red
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10
Q

Dual engine torque (TRQ) <80 KIAS

A

0 to 120% - continuous - green
120 to 144% - 10 seconds - yellow
144% - maximum - red

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11
Q

Dual engine torque (TRQ) >80 KIAS

A

0 to 106% - continuous - green
106 to 127% - 10 seconds - yellow
127% - maximum - red

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12
Q

Single engine torque (TRQ)

A

0 to 135% - continuous - green
135 to 144% - 10 seconds - red
144% - maximum - red

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13
Q

Gas generator speed (Ng)

A

0 to 98% - continuous - green
98 to 102% - continuous - yellow
102 to 105% - 12 seconds - red
105% - maximum red - red

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14
Q

Transmission temperature (XMSN T)

A

-50 to 105 C - continuous - green
105 to 120 C - precautionary - yellow
120 C - maximum - red

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15
Q

Transmission pressure (XMSN P)

A

<20 psi - minimum - red
20 to 30 psi - idle and transient - yellow
30 to 65 psi (45 to 60 psi in level flight) - continuous - green
65 to 130 psi - precautionary - yellow
130 psi - maximum - red

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16
Q

Engine oil temperature (ENG OIL T)

A

-50 to 135 C - continuos - green
135 to 150 C - 30 minutes - yellow
150 C - maximum - red

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17
Q

Engine oil pressure (ENG OIL P)

A 
22 psi - minimum - red
22 to 26 psi - precautionary - yellow
26 to 100 psi - continuos - green
100 to 120 psi - precautionary - yellow
120 psi - maximum - red

Note: normal idle range is 22 to 55 psi.

18
Q

Engine operation with ____________ is prohibited.

A

Gust lock

19
Q

Minimum planned fuel on landing shall be no less than _______ pounds ( approximately 20 minutes) of fuel per main tank. With fuel less than 300 pounds per main tank, maintain balanced flight at angles of bank greater than ______ degrees.

A

225, 30

20
Q

What is transmission limited by?

A

Nr, torque, oil pressure, and oil temperature

21
Q

Maximum wind velocity for rotor engagement or disengagement is _____ knots from any direction.

A

45

22
Q

Note:

The ______________ must be properly secured when flight is conducted with cabin doors open.

A

Soundproofing

23
Q

While maneuvering with a load on the rescue hoist, rate of descent is limited to ________ fpm.

A

1000

24
Q

What are the 3 prohibited maneuvers in flight?

A
  1. Aerobatic flight
  2. Practice full-autorotation landings
  3. Intentional approaches into or inducement of retreating blade stall
25
Q

Maximum rotor speed for rotor brake application is ____ percent Nr.

A

76

26
Q

Routine rotor stops shall be made between ___ and ____ percent Nr

A

30, 50

27
Q

Routine rotor brake stops should be limited to ____ psi to extend service life.

A

180

28
Q

Following a complete blade fold and spread cycle, allow a ____ minute cooling period before commencing another blade fold and spread evolution.

A

10

29
Q

Maximum operating gross weight:

A

23,500 pounds

30
Q

Maximum launch and recovery gross weight for aviation ships:

A

23,500 pounds

31
Q

Maximum launch and recovery gross weight for air capable ships:

A

22,500 pounds

32
Q

Maximum total internal weight in the cabin area aft of the cockpit (to include aircrew, passengers, and/ or cargo) is _____.

A

5,500 pounds

33
Q

Maximum total weight for palletized cargo is _____.

A

4,733 pounds

34
Q

Maximum weight for a single pallet of cargo is ______.

A

3,000 pounds

35
Q

Operable equipment that is required for night flight over water:

A
  1. LAWS (low altitude warning system)

2. Altitude hold

36
Q

Helicopters not equipped with operable blade deice equipment are prohibited from flight into ______________________.

A

Forecast or known icing conditions (ambient temperatures of 5 C or below in visible moisture)

37
Q

Warning:

Flight into forecast or known ______________________________.

A

Moderate or severe icing conditions is prohibited.

38
Q

Helicopters equipped with operable anti-ice and blade deice equipment are permitted flight into know forecast ____________________________.

A

Or known trace or light icing conditions.

39
Q

Warning:
Gunners belts do not provide impact protection; therefore, use of gunner belts shall be restricted to occurrences where ___________________________. Gunners belts shall not be worn when ______________________.

A

Mission accomplishment requires persons to be out of their seats,
Strapped into a seat

40
Q

Operations at temperatures below ___ or above ___ are prohibited.

A

-40 C (-40 F), 60 C (140 F)

41
Q

Rotors not engaged: APU may be operated continuously up to an ambient temperature limit of ______.

A

51 C

42
Q

Rotors engaged: APU may be operated continuously up to an ambient temperature limit of ______. If operating the APU between _____ and_____, operation is limited to 30 minutes.

A

43 C,

43 and 60 C

NATOPS (5 decks)

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