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UH-60 A/L 5/9 with guidance for test > CHAPTER 5 LIMITATIONS > Flashcards

CHAPTER 5 LIMITATIONS Flashcards

1
Q
  • Maximum wind velocity for rotor start and stop is __ KTS from any direction.
A
  • Maximum wind velocity for rotor start and stop is 45 KTS from any direction.
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2
Q
  • If oil pressure is not steady during steady state forward flight or in a level hover or if oil pressure is steady but under __ psi, make an entry on DA Form 2408-13-1. Sudden pressure drops (more than __ psi) without fluctuations require an entry on DA Form 2408-13-1.
A
  • If oil pressure is not steady during steady state forward flight or in a level hover or if oil pressure is steady but under 45 psi, make an entry on DA Form 2408-13-1. Sudden pressure drops (more than 10 psi) without fluctuations require an entry on DA Form 2408-13-1.
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3
Q

ENGINE % RPM 1 - 2 (Np)

__Sec. Transient __

Transient ___

Continuous ___

Transient ___

Avoid Operations in the __ - __ and __- __ range except during start and shutdown

A

ENGINE % RPM 1 - 2 (Np)

12 Sec. Transient 105-107 %

Transient 101-105 %

Continuous 95-101 %

Transient 91-95 %

Avoid Operations in 20 - 40 and 60 - 90 range except during start and shutdown

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4
Q

ENGINE Ng

__ Sec. Transient _____

__ Min Limit ____

Continuous ____

A

ENGINE Ng

12 Sec. Transient 102-105 %

30 Min Limit 99-102 %

Continuous 0-99 %

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5
Q

ENGINE OIL TEMPERATURE

__ Min Limit ___

Continuous ___

A

ENGINE OIL TEMPERATURE

30 Min Limit 135-150 ºC

Continuous -50 - 135 ºC

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6
Q

GAS TURBINE TEMPERATURE

_\_ Sec. Transient ____

____ Min. Transient (Contingency Power) ____

Start abort limit ____

____ Min Limit ____

____ Min Limit ____

Normal ____

A

GAS TURBINE TEMPERATURE

12 Sec. Transient 903-949 ºC

2.5 Min Transient (Contingency Power) 878-903 ºC

Start abort limit 851 ºC

10 Min Limit 851-878 ºC

30 Min Limit 810-851 ºC

Normal 0-810 ºC

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7
Q

MAIN TRANSMISSION OIL TEMPERATURE

Precautionary _____

Continuous _____

A

MAIN TRANSMISSION OIL TEMPERATURE

Precautionary 105-140 ºC

Continuous -50 -105 ºC

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8
Q

MAIN ROTOR % RPM R

Power on

Transient ____

Continuous ____

Transient ____

Power off (Autorotation)

Maximum ____

Transient ____

Normal ____

A

MAIN ROTOR % RPM R

Power on

Transient 101-107 %

Continuous 95-101 %

Transient 91-95 %

Power off (Autorotation)

Maximum 110 %

Transient 105-110 %

Normal 90-105 %

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9
Q

FUEL QUANTITY

Normal ____

Precautionary ____

A

FUEL QUANTITY

Normal 200-1500 Lbs

Precautionary 0-200 Lbs

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10
Q

ENGINE OIL PRESSURE

__ Min Limit _____

Normal Operation _____ PSI

Idle _____ PSI

* _____ PSI minimum @ 90% Ng and above

A

ENGINE OIL PRESSURE

5 Min Limit 100-120 PSI

Normal Operation 26- 100 PSI

Idle 22-26 PSI

* 35 PSI minimum @ 90% Ng and above

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11
Q

ENGINE % TRQ

__-Second Transient

  • Dual-Engine
    • Above __ KIAS ____
    • __ KIAS or Below ____
  • Single-Engine ____

Continuous

  • Single-Engine ____
  • Dual-Engine
    • Above __ KIAS ____
    • __ KIAS or Below ____
A

ENGINE % TRQ

10-Second Transient

  • Dual-Engine
    • Above 80 KIAS 100-144 %
    • 80 KIAS or Below 120-144 %
  • Single-Engine 135-144 %

Continuous

  • Single-Engine 0-135 %
  • Dual-Engine
    • Above 80 KIAS 0-100 %
    • 80 KIAS or Below 0-120 %
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12
Q

MAIN TRANSMISSION OIL PRESSURE

Precautionary ____

Continuous ____

Idle and Transient ____

A

MAIN TRANSMISSION OIL PRESSURE

Precautionary 65-130 PSI

Continuous 30-65 PSI

Idle and Transient 20-30 PSI

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13
Q

ENGINE STARTER LIMITS

At ambient temperatures of ______ °C and below, ______ consecutive start cycles may be made, followed by a _______ minute rest period, followed by _____ additional start cycles. A _____ minute rest period is then required.

At ambient temperatures above _____°C up to ______° C, ______ consecutive start cycles may be made. A ______ minute rest period is then required before any additional start cycles.

A

ENGINE STARTER LIMITS

At ambient temperatures of 15 °C and below, 2 consecutive start cycles may be made, followed by a 3 minute rest period, followed by 2 additional start cycles. A 30 minute rest period is then required.

At ambient temperatures above 15°C up to 52 ° C, 2 consecutive start cycles may be made. A 30 minute rest period is then required before any additional start cycles.

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14
Q

PNEUMATIC SOURCE INLET LIMITS

The minimum air source required to start the helicopter is ____ psig and ____ ppm at ____° C. The maximum is _____ psig at _____° C.

A

PNEUMATIC SOURCE INLET LIMITS

The minimum air source required to start the helicopter is 40 psig and 30 ppm at 149° C. The maximum is 50 psig at 249° C.

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15
Q

ENGINE OVERSPEED CHECK LIMITIATIONS

Engine overspeed check in flight is ________\_. Engine overspeed checks, on the ground, are authorized by ___________________\_ only.

A

ENGINE OVERSPEED CHECK LIMITIATIONS

Engine overspeed check in flight is PROHIBITED. Engine overspeed checks, on the ground, are authorized by DESIGNATED MAINTENANCE PERSONNEL only.

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16
Q

ENGINE START LIMITS

Cross bleed start shall not be attempted unless the __________________advisory does not appear, and the operating engine must be at ___% NG speed or above and rotor speed at ___% RPM R.

A

ENGINE START LIMITS

Cross bleed start shall not be attempted unless the #1 ENG ANTI-ICE ON OR #2 ENG ANTI-ICE ON advisory does not appear, and the operating engine must be at 90 % NG speed or above and rotor speed at 100 % RPM R.

17
Q

LOADING LIMITS

  • Maximum capacity for each storage compartment is ___ pounds .
  • Maximum cargo hook capacity (UH-60L) ____ pounds.
  • Max weight is further limited by cargo floor maximum capacity of ____ lbs per square foot.
  • Max weight UH60 with seven lugs wheels _____ pounds.
A

LOADING LIMITS

  • Maximum capacity for each storage compartment is 125 pounds .
  • Maximum cargo hook capacity (UH-60L) 9000 pounds.
  • Max weight is further limited by cargo floor maximum capacity of 300 lbs per square foot.
  • Max weight UH60 with seven lugs wheels 20,500 pounds.
18
Q

AIRSPEED LIMITS

  • Max airspeed for one engine inoperative ___ KIAS.
  • Max autorotational airspeed gross weight at 16,825 lbs or less ___ KIAS.
  • Max autorotational airspeed gross weight more than 16,825 lbs ___ KIAS.
  • Sideward/rearward flight into the wind, when combined with wind speed, shall not exceed ___ KTS.
A

AIRSPEED LIMITS

  • Max airspeed for one engine inoperative 130 KIAS.
  • Max autorotational airspeed gross weight at 16,825 lbs or less 150 KIAS.
  • Max autorotational airspeed gross weight more than 16,825 lbs 130 KIAS.
  • Sideward/rearward flight into the wind, when combined with wind speed, shall not exceed 45 KTS.
19
Q

SAS Inoperative Limits KIAS

One SAS ____

Two SAS ____

Two SAS & IMC ____

A

SAS Inoperative Limits KIAS

One SAS 170 KIAS

Two SAS 150 KIAS

Two SAS & IMC 140 KIAS

20
Q

Hydraulic System Inoperative Limits KIAS

One hydraulic system ____

Two hydraulic systems ____

Two hydraulic systems & IMC ____

A

Hydraulic System Inoperative Limits KIAS

One hydraulic system 170 KIAS

Two hydraulic systems 150 KIAS

Two hydraulic systems & IMC 140 KIAS

21
Q

Maximum airspeed for:

A
22
Q

FLIGHT WITH CABIN DOOR(S) / WINDOWS(S) OPEN:

  • Cabin doors may be fully open up to ____ KIAS with soundproofing installed aft of station 379.
  • Cabin doors may be fully open up to ____ KIAS with soundproofing removed aft of station 379 or with sound proofing secured properly.
  • Gunner’s window(s) may be fully open up to____ KIAS
  • Cockpit doors sliding window will not be ____ or ____ during flight except during ____.
  • Flight with cockpit door(s) removed is ____.
A

FLIGHT WITH CABIN DOOR(S) / WINDOWS(S) OPEN:

  • Cabin doors may be fully open up to 100 KIAS with soundproofing installed aft of station 379.
  • Cabin doors may be fully open up to 145 KIAS with soundproofing removed aft of station 379 or with sound proofing secured properly.
  • Gunner’s window(s) may be fully open up to 170 KIAS
  • Cockpit doors sliding window will not be OPEN or CLOSED during flight except during HOVER.
  • Flight with cockpit door(s) removed is PROHIBITED.
23
Q

AIRSPEED LIMITS

Following failure of the Automatic Stabilator Control System.

Manual control is available:

  • Stabilator shall be full down at speeds below ____ KIAS
  • Stabilator shall be set at zero degrees for speeds above ____ KIAS
  • Autorotation airspeed shall be limited to ____ KIAS at all gross weights.

Manual control not available:

  • Placard airspeed limits shall be observed as not-to-exceed speed (powered flight and autorotation), except in no case shall the autorotation limit exceed ____ KIAS.
A

AIRSPEED LIMITS

Following failure of the Automatic Stabilator Control System.

Manual control is available:

  • Stabilator shall be full down at speeds below 40 KIAS
  • Stabilator shall be set at 0 degrees for speeds above 40 KIAS
  • Autorotation airspeed shall be limited to 120 KIAS at all gross weights.

Manual control not available:

  • Placard airspeed limits shall be observed as not-to-exceed speed (powered flight and autorotation), except in no case shall the autorotation limit exceed 120 KIAS.
24
Q

PROHIBITED MANEUVERS

  1. Hovering turns greater than ___ ° per second are prohibited. Intentional maneuvers beyond attitudes of ___ ° in pitch or over ___° in roll are prohibited.
  2. Simultaneous moving of ___ to ___ or ___ in flight is prohibited.
  3. ___ ground taxi is prohibited.
A

PROHIBITED MANEUVERS

  1. Hovering turns greater than 30° per second are prohibited. Intentional maneuvers beyond attitudes of +/- 30 ° in pitch or over 60° in roll are prohibited.
  2. Simultaneous moving of BOTH EPCL to IDLE or OFF in flight is prohibited.
  3. REARWARD ground taxi is prohibited.
25
Q

RESTRICTED MANEUVERS

  • Manual operation of the stabilator in flight is _____, except as required by formal training and _____ requirements or as alternate stabilator control in case of AUTO mode malfunctions.
  • Prolonged rearward flight and downwind hovering are to be avoided to prevent accumulation of _____ in the helicopter and _____ to windows on _____.
A

RESTRICTED MANEUVERS

  • Manual operation of the stabilator in flight is PROHIBITED, except as required by formal training and MAINTENANCE TEST FLIGHT requirements or as alternate stabilator control in case of AUTO mode malfunctions.
  • Prolonged rearward flight and downwind hovering are to be avoided to prevent accumulation of EXHAUST FUMES in the helicopter and HEAT DAMAGE to windows on OPEN CARGO DOORS.
26
Q

MANEUVERING LIMITATIONS

NOTE: Maneuvers entered from a low power setting may result in _____ of _____ % RPM R or greater.

A

MANEUVERING LIMITATIONS

NOTE: Maneuvers entered from a low power setting may result in TRANSIENT DROOP of 5 % RPM R or greater.

27
Q

High Speed yaw maneuver limitations

Above ___ KIAS avoid _____________ to prevent excess tail rotor system loading.

A

High Speed yaw maneuver limitations

Above 80 KIAS avoid ABRUBT, FULL PEDAL INPUTS to prevent excess tail rotor system loading.

28
Q

Sling Loads

  • Maneuvering limitations with a sling load is limited to a maximum of __° angle of bank in forward flight.
  • Side flight is limited by ________ and is decreased as _______
  • Rearward flight with a sling load is limited to __ knots.
A

Sling Loads

  • Maneuvering limitations with a sling load is limited to a maximum of 30° angle of bank in forward flight.
  • Side flight is limited by BANK ANGLE and is decreased as AIRSPEED INCREASES
  • Rearward flight with a sling load is limited to 35 knots.
29
Q

Bank Angle Limitation

Bank angle shall be limited to __° when either PRI SERVO PRESS caution light appears.

A

Bank Angle Limitation

Bank angle shall be limited to 30° when either PRI SERVO PRESS caution light appears.

30
Q

LANDING GEAR LIMITATION

A
31
Q

LANDING SPEED LIMITATIONS

Maximum forward touchdown speed is limited to ___ knots ground speed on level terrain.

A

LANDING SPEED LIMITATIONS

Maximum forward touchdown speed is limited to 60 knots ground speed on level terrain.

32
Q

SLOPE LANDING LIMITATIONS

  1. __ ° nose-up, right wheel up or left wheel upslope, reduced by __ for each __ KTS of wind.
  2. __° nose downslope. Landing in nose downslope conditions with tail winds greater than ___ KTS shall not be conducted.
  3. The main gearbox may be operated up to __ minutes at a time with pressure fluctuations when the helicopter is known to be at a ________________.
A

SLOPE LANDING LIMITATIONS

  1. 15 ° nose-up, right wheel up or left wheel upslope, reduced by 2 for each 5 KTS of wind.
  2. 6° nose downslope. Landing in nose downslope conditions with tail winds greater than 15 KTS shall not be conducted.
  3. The main gearbox may be operated up to 30 minutes at a time with pressure fluctuations when the helicopter is known to be at a NOSE-UP ATTITUDE.
33
Q

ENVIRONMENTAL RESTRICTIONS

Helicopters with the following equipment installed, operational, and turned on are permitted to fly into ______ or ______ icing conditions.

  1. ____________________
  2. ____________________
  3. ____________________
  4. ____________________
  5. ____________________

Flight into moderate icing conditions _________________ must be installed, operational, and turned on. Flight into heavy or severe icing is ____________

A

ENVIRONMENTAL RESTRICTIONS

Helicopters with the following equipment installed, operational, and turned on are permitted to fly into TRACE or LIGHT icing conditions.

  1. WINDSHIELD ANTI-ICE
  2. PITOT HEAT
  3. ENGINE ANTI-ICE
  4. ENGINE INLET ANTI-ICE MODULATING VALVE
  5. INSULATED AMBIENT AIR SENSING TUBE.

Flight into moderate icing conditions ALL EQUIPMENT AND BLADE DEICE KIT must be installed, operational, and turned on. Flight into heavy or severe icing is PROHIBITED

34
Q

BACKUP HYDRAULIC PUMP HOT WEATHER LIMITS with the rotor system _________.

A

BACKUP HYDRAULIC PUMP HOT WEATHER LIMITS with the rotor system STATIC.

35
Q

APU OPERATING LIMITS

To prevent APU overheating, at ambient temperature of ___°C and above with the engine and rotor operating is limited to ___ minutes. With the engine and rotor not operating, the APU can be operated __________ up to a temperature of ___°C.

A

APU OPERATING LIMITS

To prevent APU overheating, at ambient temperature of 43°C and above with the engine and rotor operating is limited to 30 minutes. With the engine and rotor not operating, the APU can be operated CONTINUOUSLY up to a temperature of 51°C.

36
Q

WINDSHIELD ANTI-ICE LIMITATIONS

Windshield anti-ice check shall not be done when FAT is over __°C.

A

WINDSHIELD ANTI-ICE LIMITATIONS

Windshield anti-ice check shall not be done when FAT is over 27°C.

37
Q

TURBULENCE AND THUNDERSTORM OPERATION

  1. Intentional flight into thunderstorms is ____________.
  2. Intentional flight into ____________ turbulence is prohibited.
  3. Intentional flight into turbulence with a sling load attached and an inoperative ____________ is prohibited.
A

TURBULENCE AND THUNDERSTORM OPERATION

  1. Intentional flight into thunderstorms is PROHIBITED.
  2. Intentional flight into SEVERE turbulence is prohibited.
  3. Intentional flight into turbulence with a sling load attached and an inoperative COLLECTIVE PITCH CONTROL FRICTION is prohibited.
38
Q

GUST LOCK LIMITATIONS

  1. Dual-engine operations with the gust lock engaged are _________.
  2. Single-engine operations with gust lock engaged will be performed by authorized pilot(s) at _________ only.
  3. Gust lock shall not be _________ with engine running.
A

GUST LOCK LIMITATIONS

  1. Dual-engine operations with the gust lock engaged are PROHIBITED.
  2. Single-engine operations with gust lock engaged will be performed by authorized pilot(s) at IDLE only.
  3. Gust lock shall not be DISENGAGED with engine running.

UH-60 A/L 5/9 with guidance for test (2 decks)

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