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HAC > Limits - NATOPS Ch. 4 > Flashcards

Limits - NATOPS Ch. 4 Flashcards

1
Q

Flight display digital readout will display _____ in red when a TGT or torque limit is exceeded.

Crew shall land ________________.

A

XXX

Land as soon as practicable.

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2
Q

Engine is limited by these 5 things

A

Ng, Np, TGT, oil px, oil temp

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3
Q

How is a starter cycle defined?

A

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

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4
Q

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

A

60

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5
Q

Engine Start Limitations (3 things)

A
  1. Within single/dual engine start envelope. For crossbleeds, receiving engine shall be at or above 24% Ng prior to advancing PCL to IDLE.
  2. Engine start with the main rotor blades or tail pylon folded is prohibited.
  3. The start TGT limit is 851 degrees C until idle speed is attained.
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6
Q

What is idle speed considered?

A

Ng 63% or above and matched within 3.

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7
Q

Minimum Planned Fuel on Landing

A

600 lb

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8
Q

APU Essential In-Flight Use (4 things)

A

Emergency Procedures
Single Engine Training
Practice Autorotations
Powering the ECS during extreme temperature operations

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9
Q

TGT Limits

A

0-810, Continuous, Green
810-851, 30 minutes, Yellow
851-878, 10 minutes, Red
878-903, 2.5 minutes, Red
903-949, 12 seconds, Red
949 max

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10
Q

Np Limits

A

<96%, Avoid, Red
96-105, Continuous, Green (Yellow above 101)
105-117, 20 seconds, Yellow
117-120, 12 seconds, Yellow
120 max, Red

Avoid Range: 20-40%, 60-75%

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11
Q

Nr Limits

A

<96%, Avoid, Red
96-101, Continuous, Green
101-120, Precautionary, Yellow
120 max, Red
123 Maximum, FCF only, Red
127 Overspeed Latch, Red

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12
Q

Dual Engine Torque < 80 KIAS

A

0-120%, Continuous, Green
120-144%, 10 seconds, Yellow
144%, Max, Red

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13
Q

Dual Engine Torque > 80 KIAS

A

0-106%, Continuous, Green
106-127%, 10 seconds, Yellow
127%, Max, Red

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14
Q

When do dual engine torque limits apply?

A

Both engines are above 65% torque.

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15
Q

Single Engine Torque Limit

A

0-135%, Continuous, Green
135-144%, 10 seconds, Red
144%, Max, Red

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16
Q

Ng Limits

A

0-102.2%, Continuous, Green
102.2-106%, 2.5 minutes, Yellow
106-107%, 12 seconds, Red
107%, Max, Red

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17
Q

Transmission Temperature Limits

A

-50-105 degrees C, Continuous, Green
105-120, Precautionary, Yellow
120, Max, Red

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18
Q

Transmission Pressure Limits

A

20 psi, Minimum, Red
20-30, Idle and Transient, Yellow
30-65 (45-60 in level flight), Continuous, Green
65-130, Precautionary, Yellow
130, Maximum, Red

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19
Q

Engine Oil Temperature

A

-50-135 degrees C, Continuous, Green
135-150, 30 minutes, Yellow
150, Max, Red

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20
Q

Engine Oil Pressure

A

22 psi, Minimum, Red
22-26, Precautionary, Yellow
26-100, Continuous, Green
100-120, Precautionary, Yellow
120, Max, Red

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21
Q

Engine Start Limits

A

OAT < 16 degrees C:

1st cycle: 60 seconds
2nd: 60 seconds
3rd: 60 seconds
4th: 30 minutes

OAT 16-52 degrees C:

1st cycle: 60 seconds
2nd: 30 minutes

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22
Q

Engine Motoring Limits (Ignition Off)

A

2 minutes engaged, 5 minutes disengaged

2 minutes engaged, 30 minutes disengaged

Times are cumulative within a 5 minute period.

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23
Q

Transmission is limited by these 4 things

A

Nr, torque, trans oil px, trans oil temp

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24
Q

Engine Torques over _____% are displayed as red XXX.

A

150%

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25
Q

During any operating condition, no maintenance action is required if maintenance transmission oil temperature is in the precautionary range for _____ minutes or less.

A

5

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26
Q

Prolonged hovering in hot weather (86 degrees F, 30 degrees C) may cause trans oil temp to rise into precautionary range. Operating in the precautionary range for less than _____ minutes in this condition is acceptable and no mx action is required.

A

30

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27
Q

Transmission Oil Pressure Limitations that constitute a MAF but not an Emergency

A

Steady pressure outside of 45-60 psi, but within normal limits of 30-65.

Fluctuations not to exceed a range of 10 psi, within the normal limits of 30-65.

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28
Q

During transient pitch or steady state nose high pitch attitudes, oil pressure fluctuations (momentary fluctuations below ____ psi and transient drops below _____ psi for ____ second) are acceptable. Fluctuations below _____ psi shall be limited to ____ minutes.

A

30 psi, 20 psi, 1 second.

30 psi, 30 minutes

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29
Q

During rotor engagement, a zero oil pressure indication may indicate a ____ ______ ______ condition. Shall be limited to less than _____ minute(s) and shall be _________ on a _______.

A

No oil flow condition

1 minute

Documented on a MAF

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30
Q

Rotor Engagement/Disengagement Limit

A

45 knots any direction

31
Q

Vne

32
Q

Sideward/Rearward Flight

33
Q

Max Autorotation Speed

34
Q

Boost Off Flight

35
Q

SAS 1 and 2 Inop in IMC

36
Q

Either PRI SERVO PRESS Caution

37
Q

Searchlight in fixed position other than stowed

38
Q

Searchlight in transition

39
Q

Dome at or above trail

A

70 KIAS, 45 degrees AOB

40
Q

Dome below trail

A

70 KIAS, 15 degrees AOB

41
Q

Cabin door opening/closing

42
Q

What is the note about airspeed with the MTS installed?

A

Unbalanced flight below 90 KIAS in descents over 1000 fpm will result in inaccurate and erratic airspeed indications.

43
Q

Rescue Hoist Load Descent Rate Limit

44
Q

Hovering Limitations (4 things)

A
  1. Prolonged rearward flight and downwind hovering should be avoided to prevent accumulation of exhaust fumes in the helicopter and heat damage to the window on an open cabin door.
  2. Hovering turns at a rate in excess of 30 degrees per second.
  3. Dipping sonar operations at altitudes other than 70 feet.
  4. Do not tow the transducer in the water above 8 KGS with array folded and 4 KGS with array unfolded.
45
Q

Towing Definition

A

Towing is defined as the cable contacting the funnel.

46
Q

AOB Limits

A

Normal - 45 degrees

Operations above 10,000’ DA - 30

Either PRI SERVO PRESS caution - 30

Boost off flight - 30

47
Q

Altitude Limit

A

13,000’ DA

48
Q

Prohibited Maneuvers (3 things)

A
  1. Aerobatic flight
  2. Practice full autorotations
  3. Intentional approaches into or inducement of retreating blade stall.
49
Q

Rotor Brake Limit

A

Max rotor speed is 76% Nr for application.

Routine stops shall be 30-50% Nr and limited to 180 psi.

50
Q

Blade Fold/Spread Limit

A

45 knots of wind from any direction

10 minute cooling period following a complete fold and spread.

51
Q

Max Rate of Descent to Land

A

720 fpm when aircraft < 19,500 lb

480 fpm when aircraft > 19,500 lb

52
Q

Max Rate of Descent to Land on Sloped Terrain

53
Q

Max Touchdown Speed

A

75 KGS with tail wheel locked, 20 KGS with tail wheel unlocked

54
Q

Max Ground Taxi Speed

A

40 KGS with shimmy damper installed, 20 KGS with shimmy damper not installed.

55
Q

Slope Landing Limits

A

6 degrees nose down

9 degrees nose up

12 degrees cross slope

56
Q

Note about Nose Down Landings

A

A low frequency oscillation may occur on nose down landings with cyclic near the aft stop.

57
Q

Downwind landings _______ be avoided.

58
Q

Windows _______ not be installed or removed in flight, except during actual aircraft emergencies.

59
Q

Max Operating Gross Weight

60
Q

Maximum Launch and Recovery Gross Weight for Aviation and Amphibious Assault Aviation Ships

61
Q

Max Launch and Recovery Gross Weight for Air Capable Ships

62
Q

Max Cargo Floor Loading

A

300 lb per square foot

63
Q

Max Cargo Hook Weight

64
Q

Max Rescue Hoist Weight

65
Q

Cg Limits

A

8.0 inches right, 7.5 inches left

66
Q

Minimum Equipment for IMC

A

Both FDs
Both cockpit MDs or 2/3 if qualified aircrewman aboard. WCA page shall be functional
Both EGIs. Valid attitude by both, heading by at least one.
ADC
Slip/Skid indicators
Standby mag compass with current calibration card
Primary and backup mission computers
RADALT
Digital clock
Pitot Heat
Windshield wipers
All backup flight instruments
Instrument, navigation, and cockpit lighting
One VHF/UHF
ICS
IFF, as required by ATC
TACAN or VOR
SAS 2, trim, autopilot
LAWS (over water)
Altitude hold (over water)

67
Q

Minimum Equipment for Night Flight over Water

A

LAWS

Altitude hold (RADALT or BARALT)

68
Q

What two types of icing can we fly into? What equipment do we need?

A

Trace and light

Operable anti-ice and blade de-ice equipment

69
Q

What are icing conditions defined as?

A

5 degrees C or lower in visible moisture

70
Q

Minimum Equipment for Passengers

A

Emergency egress lighting system (ADHEELS and IHEELS) shall be operable for all overwater flights requiring passengers in the cabin.

71
Q

Temperature Limits

A

-40 degrees C to 60 degrees C
-40 degrees F to 140 degrees F

72
Q

APU Operating Limits

A

APU operation at 43 degrees C and above with engines and rotor operating is limited to 30 minutes.

APU may be operated continuously up to 51 degrees C with engines and rotor not operating.

73
Q

Backup Hyd Pump Limits

A

33-38 degrees C: 24 minutes on, 72 minutes off

39-60 degrees C: 16 minutes on, 48 minutes off

HAC (24 decks)

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