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Study > Limits: AH-1Z War Wagon > Flashcards

Limits: AH-1Z War Wagon Flashcards

1
Q

Min Temp for Battery APU Start

A

-25 Deg F (-32 C)

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2
Q

Ground power requirements for APU start

A

Amps: 500 (300-1,000 Amp Range)
Volts: 28 Vdc (23.9 - 29.1 Vdc Range)

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3
Q

APU Starter Limits

A 
30 sec ON
60 sec OFF
30 sec ON
60 sec OFF
30 sec ON
30 min OFF
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4
Q

Starter Limits (Less than 61F)

A 
Starter on: Not to exceed 2 min
1st Cycle: 60 sec OFF
2nd Cycle: 60 sec OFF
3rd Cycle: 60 sec OFF
4th Cycle: 30 min OFF
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5
Q

Starter Limits (61F to 126F)

A

Starter on: Not to exceed 2 min
1st Cycle: 60 sec OFF
2nd Cycle: 30 min OFF

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6
Q

Engine Wash Limits

A 
2 min ON
5 min OFF
2 min ON
30 min OFF
**starter motoring is cumulative within a 5 minute period**
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7
Q

Engine Abort Criteria

A

1) Ng fails to reach 14% within 6 sec
2) No MGT indication within 20 sec after initial indication of Ng
3) No oil pressure within 30 sec after starter is engaged.
4) MGT reaches 867 before starter disengages
5) Starter fails to disengage above 55% (+/- 3%) Ng
6) No Np indication within 30 sec after Ng reaches IDLE (67% +/-3%)
7) ROTOR BRAKE light fails to extinguish 30 sec after brake release

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8
Q

Max relative wind for rotor start or stop

A

60 kts

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9
Q

Main Rotor (Nr) Power ON

A

Minimum: 91%
Continuous: 97 - 104.9%
Maximum: 104.9%

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10
Q

Main Rotor (Nr) Power OFF

A

Minimum: 84%
Continuous: 91 - 110.9%
Maximum: 110.9%

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11
Q

Power Turbine Speed (Np)

A

Continuous: 99-101.7%
Transient (12 sec): 101.8-116.9%
Maximum: 116.9%
Avoid: 55-70%

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12
Q

Engine Torque (401)

A

Continuous: 0-62.4%
Transient (30min) : 62.4-65.7%
Maximum: 65.7%

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13
Q

Engine Torque (401C)

A

Continuous: 0-65.7%
Maximum: 65.7%

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14
Q

Main Rotor Gearbox Torque

A

Continuous: 0-104.9%
Transient (10sec): 105-110.9%
6 transient overtorques in the transient range or operation for more than 10 seconds requires an inspection

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15
Q

MGT (Normal)

A

Continuous: 400-800 C

Intermediate (30 min): 801-867 C

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16
Q

MGT (One Engine Inoperative)

A

Contingency (2 1/2 min) : 868-917 C

Transient (12 sec) : 917-964 C

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17
Q

Gas Generator Turbine (Ng)

A

Continuous: 0-102.1%
Transient (12 sec) : 102.1 - 105.1%
Maximum: 105.2%

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18
Q

Engine Oil Temperature

A

Continuous: 35-131 C
30-Minute: 132-149 C
Maximum: 150 C

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19
Q

Engine Oil Pressure

A 
Minimum: 20 PSI
Caution: 20-30 PSI
Continuous: 30-100 PSI
Maximum: 100 PSI
Maximum Cold Start: 200 PSI
20
Q

MRGB Oil Temperature

A

Caution: -50 to 0 C
Normal: 0 to 100 C
Caution: 100 to 110 C
Maximum: 110 C

21
Q

MRGB Oil Pressure

A 
Minimum: 25 PSI
Caution: 25-40 PSI
Normal: 40-70 PSI
Caution: 70-100 PSI
Maximum: 100 PSI
22
Q

Intermediate Gearbox Oil Temperature

A

Caution: -50 to 0 C
Normal: 0-124 C
Maximum: 124 C

23
Q

Intermediate Gearbox Oil Pressure

A

LO: Low
GO: Normal (>7 PSI)

24
Q

Combining Gearbox Oil Temperature

A

Caution: -50 to 0 C
Normal: 0 to 100 C
Caution: 100 to 110 C
Maximum: 110 C

25
Q

Combining Gearbox Oil Pressure

A 
Minimum: 25 PSI
Caution: 25-70 PSI
Normal: 70 - 90 PSI
Caution: 90 - 150 PSI
Maximum: 150 PSI
26
Q

Tail Rotor Gearbox Oil Temperature

A

Caution: -50 to 0 C
Normal: 0 to 100 C
Caution: 100 to 110 C
Maximum: 110 C

27
Q

Tail Rotor Gearbox Oil Pressure

A

LO: Minimum (<10 PSI)
GO: Normal (11 - 149 PSI)
HI (Yellow): Caution Range (150-174 PSI)
HI (Red): Maximum (>175 PSI)

28
Q

Hydraulics Temperature

A 
Minimum: -7 C
Caution: -7 to 10 C
Normal: 10 to 110 C
Caution: 110-115 C
Maximum: 115 C
29
Q

Hydraulics Pressure

A 
Minimum: 2000 PSI
Caution: 2001 - 2700 PSI
Normal: 1700 - 3150 PSI
Caution: 3150 - 3850 PSI
Maximum: 3850 PSI
30
Q

Hydraulics Fluid Level

A

Min: LOW (75 CU In)
Caution: REFL (75 - 85 CU In)
Normal: FULL (85 - 110 CU In)

31
Q

Main Generator Voltage

A 
Minimum: 18 Vdc
Caution: 18 - 22 Vdc
Normal: 22 - 28 Vdc
Caution: 29 - 30 Vdc
Maximum: 30 Vdc
32
Q

Main Generator Amperage

A

Normal: 0 - 400 Amps
Caution: 400 - 600 Amps
Maximum: 600 Amps

33
Q

Battery Limits

A 
Minimum: 18 Vdc
Caution: 18 - 22 Vdc
Normal: 22 - 28 Vdc
Caution: 29 - 30 Vdc
Maximum: 30 Vdc
34
Q

Essential and Non Essential DC Bus

A 
Minimum: 18 Vdc
Caution: 18 - 22 Vdc
Normal: 22 - 28 Vdc
Caution: 29 - 30 Vdc
Maximum: 30 Vdc
35
Q

APU Generator Voltage

A 
Minimum: 0 - 17.9 Vdc
Caution: 18 - 21.9 Vdc
Normal: 22 - 28 Vdc
Caution: 29.1 - 29.9 Vdc
Maximum: 30 Vdc
36
Q

APU Generator Amperage

A

Normal: 0 - 200 Amps
Caution: 200.1-299 Amps
High: 300-400 Amps

37
Q

Essential and Non Essential AC Bus

A 
Minimum: 104 Vac
Caution: 104-108 Vac
Normal: 108 - 118 Vac
Caution: 118-125 Vac
Maximum: 125 Vac
38
Q

Rotor Brake Limits

A

1) Do not apply above 60% Nr
2) Do not apply below 25% Nr
3) Release rotor brake prior to 0% Nr
4) During rotor brake start, release brake within 25 sec after 67% Nr is attained.
5) During rotor brake start, ROTOR BRAKE light should extinguish within 30 sec after brake release.
6) Do not exceed engine idle RPM with rotor brake engaged.

39
Q

Maximum sloped surface landing

A

6 degrees

40
Q

Maximum Airspeed

A

Below 10,000’ DA: 200 KIAS

Above 10,000’ DA: 100 KIAS

41
Q

Airspeed Limits

A

Autorotation: 120 KIAS
Sideward/Rearward: 45 KIAS
SCAS Failure: 100 KIAS

42
Q

Roll Limitation

A

30 Deg AOB above 10,000’ DA

43
Q

Acceleration Limits

A

Stick Buzzer: 2.5 g’s

Max: 3.0 Below 15,000lbs gross weight

44
Q

Prohibited Manuevers

A

1) Aerobatic maneuvers
2) Practice Autos to a touchdown
3) Practice Auto entries within the shaded areas if the Height-Velocity Diagram
4) Dual-engine throttle chops above 120KIAS
5) Single-engine throttle chops above 60% MRGB Torque
6) Do not exceed 50% MRGB torque at airspeeds above Vh while in a dive
7) Abrupt, simultaneous collective and cyclic inputs while maneuvering.

45
Q

Maximum Weights

A

Max Gross: 18,500 lbs
Max Jacking: 14,000 lbs
Max Towing: 18,500 lbs

46
Q

Maximum Wind for blade folding

A

45 Kts

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