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UH 60M > Ch 5 > Flashcards

Ch 5 Flashcards

1
Q

MAIN TRANSMISSION MODULE LIMITATIONS
If oil pressure is not steady during steady state forward flight or in level flight, 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

45

10

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2
Q

ROTOR START AND STOP LIMITS

Maximum wind velocity for rotor start and stop is ____ KTS from any direction.

A

45

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3
Q 
TGT C
12 Sec Transient \_\_\_\_\_\_\_\_\_\_\_\_
2.5 min Transient \_\_\_\_\_\_\_\_\_\_\_
Start abort limit \_\_\_\_\_\_\_\_\_\_\_\_\_
10 min limit \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
30 min limit \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Normal \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
A 
903 - 949 degrees C
879 - 903
851
846 - 879
793 - 846
0 - 793
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4
Q

MAIN ROTOR % RPM R - Power On

Transient _____________
Continuous __________
Transient _____________

A

Power On

101 - 107%
95 - 101%
91 - 95%

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5
Q

MAIN ROTOR % RPM R - Power Off (Autorotation)

Maximum __________
Transient ___________
Normal _____________

A

110%
105 - 110%
90 - 105%

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6
Q

ENGINE % RPM 1 - 2 (NP)

12 Sec Transient ___________
Transient ___________________
Continuous ________________
Transient ___________________

Avoid operations in the _____-_____ and ______-_____ range except during start and shutdown.

A

105 - 107%
101 - 105 %
95 - 101%
91 - 95%

20 - 40% and 60 - 90%

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7
Q

Gas Generator Speed (NG)

12 Sec Transient ______
Continuous ___________

A

105 - 106%

0 - 105 %

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8
Q

ENGINE OIL TEMPERATURE (degrees C)

30 Min Limit __________
Continuous ___________

A

135 - 150 degrees C

-20 - 135 degrees C

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9
Q

ENGINE OIL PRESSURE

5 min limit ____________________
Normal Operations ___________
Idle ___________________________

A

100 - 120 PSI
26 - 100 PSI
22 - 26 PSI

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10
Q

TRANSMISSION OIL TEMPERATURE

Precautionary ________
Continuous __________

A

105 - 140 degrees C

-20 - 105 degrees C

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11
Q

TRANSMISSION OIL PRESSURE

Precautionary _______________
Continuous __________________
Idle and Transient ___________

A

65 - 130 PSI
30 - 65 PSI
20 - 30 PSI

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12
Q

ENGINE STARTER LIMITS

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

A

15 degrees C, 2 consecutive cycles, 3 min rest period, 2 additional start cycles, 30 min rest period required.

Above 15 degrees C up to 52 degrees C, 2 consecutive cycles, 30 min rest period.

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13
Q

PNEUMATIC SOURCE INLET LIMITS

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

A

40 psig
30 ppm
149 degrees C

50 psig
249 degrees C

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14
Q

ENGINE OVERSPEED CHECK LIMITATIONS

Engine overspeed check in flight is _____. Engine overspeed checks, on the ground, are authorized by _____ only.

A

Prohibited

Designated maintenance personnel

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15
Q

ENGINE START LIMITS

Cross bleed start shall not be attempted unless the _____ or _____ advisory does not appear, and the operating engine must be at _____ % NG or above and rotor speed at _____ % NR.

A

ENG 1 ANTI-ICE ON or ENG 2 ANTI-ICE ON
90 % NG
100% NR

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16
Q

LOADING LIMITS

External lift missions above 22,000 pounds can only be flown with cargo hook loads above ____ pounds and up to _____ pounds.
Max weight is further limited by cargo floor maximum capacity of _____ pounds per square foot.
Maximum capacity for each storage compartment is _____ pounds.
Maximum weight that may be suspended from the cargo hook is _____ pounds.

A

8,000 and up to 9,000
125 pounds
300 pounds
9,000 pounds

17
Q

AIRSPEED LIMITS

Max airspeed for one engine inoperative _____ KIAS.
Max autorotational airspeed gross weight at 16,825 pounds of less _____ KIAS.
Max autorotational airspeed gross weight more than 16,825 pounds _____ KIAS.

Sideward/rearward flight: hovering in winds greater than _____ knots from the sides or rear is prohibited.
Sideward/rearward flight into the wind, when combined with wind speed, shall not exceed _____ knots

A

130 KIAS
150 KIAS
130 KIAS

S/R: 45
45

18
Q

SAS Inoperative Limits KIAS

One SAS _____________
Two SAS _____________
Two SAS & IMC ______

A

One: 170 KIAS
Two: 150 KIAS
2 IMC: 140 KIAS

19
Q

Hydraulic System Inoperative Limits KIAS

One Hydraulic System __________
Two Hydraulic System __________
Two Hydraulic System & IMC ___________

A

One: 170 KIAS
Two: 150 KIAS
Two in IMC: 140 KIAS

20
Q

Maximum Airspeed for Lights:

Landing Light, Extending KIAS: _____
Landing Light, Extended KIAS: _____
Searchlight, Extending KIAS: _____
Searchlight, Extended KIAS: _____

A

Landing:
130
180

Search:
100
180

21
Q

Flight with Cabin Door(s)/Window(s) Open:

Cabin doors may be fully open up to \_\_\_\_ KIAS.
The doors will \_\_\_\_\_ be intentionally moved from the fully open or closed position in flight.
Gunner window(s) may be fully open up to \_\_\_\_\_ KIAS
Flight with cockpit door(s) removed is \_\_\_\_\_.
Flight with cabin door(s) open is not authorized with \_\_\_\_\_ installed.
A 
145
Not
170
Prohibited
Volcano
22
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 to zero degrees for speeds above _____ KIAS.
Autorotation airspeed shall be limited to _____ KIAS at all gross weights.
NOTE: Vne becomes variable to indicate the airspeed limit applicable for the current stabilator position, except in no case shall the autorotation limit exceed _____ KIAS.

A

40
40
120
Note: 120 KIAS

23
Q

Maneuvering Limits Prohibited Maneuvers

A. Hovering turns greater than _____ degrees per second are prohibited. Intentional maneuvers beyond attitudes of _____ degrees in pitch or over _____ degrees in roll are prohibited.
B. Simultaneous moving of _____ to _____ or _____ in flight is prohibited.
C. _____ ground taxi prohibited.

A

A. 30, +/- 30, 60
B. Both ENG POWER CONT levers to IDLE or OFF (throttle chop)
C. Rearward

24
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

Prohibited, maintenance test flight

Exhaust fumes, heat damage, open cargo doors

25
Q

MANEUVERING LIMITATIONS (1/2)

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

High speed yaw maneuver limitations:
Above _____ KIAS avoid _____ to prevent excess tail rotor system loading.

A

Transient droop of 5%

80 KIAS, abrupt full pedal inputs

26
Q

MANEUVERING LIMITATIONS (2/2)

Sling Loads
Maneuvering limitations with a sling load is limited to a maximum of _____ degrees 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.

Bank angle shall be limited to _____ degrees when a PRI SERVO FAIL caution appear.

A

30 degrees
Bank Angle, airspeed increases
35 knots

30 degrees

27
Q

LANDING GEAR LIMITATIONS

Do not exceed a touchdown sink rate of _____ feet-per-minute on _____ terrain and _____ feet-per-minute on _____ with gross weights of up to 16,825 pounds;

Above 16,825 pounds gross weight do not exceed _____ feet-per-minute on _____ and _____ feet-per-minute on _____.

A

540 fpm on level terrain, 360 fpm on slopes

300 fpm on level terrain, 180 fpm on slopes

28
Q

LANDING SPEED LIMITATIONS

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

A

60

29
Q

SLOPE LANDING LIMITATIONS

_____ degrees nose-up, right wheel up or left wheel upslope. The slope limitations shall be further reduced by _____ for every _____ KTS of wind.

_____ degrees nose downslope. Landing in downslope conditions with tail winds great than _____ KTS shall not be conducted.

The main gearbox may be operated up to _____ minutes at a time with pressure fluctuations when the helicopter is known to be at _____.

A

15 degrees, 2 degrees, 5 knots

6 degrees, 15 knots

30 minutes, a nose-up attitude

30
Q

ENVIRONMENTAL RESTRICTIONS

Helicopters with the following equipment installed, operational, and turned on are permitted to fly into _____ or _____ icing conditions (5 things)

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

A

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

All equipment, prohibited

31
Q

BACKUP HYDRAULIC PUMP HOT WEATHER LIMITATIONS

FAT (in degrees C) Operating Time (Minutes) Cool Down Time (Minutes)

A

-54 - 32 degrees Unlimited –
33 - 38 degrees 24 72
39 - 52 degrees 16 48

32
Q

APU OPERATING LIMITS

To prevent APU overheating, APU operation at ambient temperature of _____ degrees C and above with the engine and rotor operating is limited to _____ minutes. With the engine and rotor not operating, the APU may be operated _____ up to a temperature of _____ degrees C.
If APU OIL HOT caution appears a _____ minute cooling period is required, before checking oil level.

A 
43 degrees
30 minutes
Continuously
51 degrees
30 minute
33
Q

WINDSHIELD ANTI-ICE LIMITATIONS

Windshield anti-ice check shall not be done when FAT is over _____ degrees C.

A

27 degrees

34
Q

TURBULENCE AND THUNDERSTORM OPERATION

Intentional flight into thunderstorms is _____.
Intentional flight into _____ turbulence is prohibited.
Intentional flight into turbulence with a sling load attached and an inoperative _____ is prohibited.

A

Prohibited
Severe
Collective trim

35
Q

BLUE FORCE TRACKER TEMPERATURE LIMITS

CAUTION:

Operating the BFT system outside this range may cause failure or erratic operation. Normal operating temperatures range: _____ to _____.

A

-26 to 71 degrees C

36
Q

EXCEEDING OPERATIONAL LIMITS

Any time an operational limit is exceeded, an appropriate entry shall be made on DA form _____. Entry shall state what limit or limits were _____ , _____, _____, and any additional data that would aid maintenance personnel in the maintenance action that may be required. The helicopter shall be not be _____ until corrective action is taken.

A

2408-13-1
Exceeded, range, time beyond limits
Flown

37
Q

ENGINE INSTRUMENT CREW ALERTING SYSTEM (EICAS) AND PFD POWER POD COLOR CODES

Red and Yellow striped tapes and red readouts indicate the limit:

Yellow tapes and readouts indicate:

Green tapes and readouts indicate the:

A

Red: Above or below which continued operation is likely to cause damage or shorten component life

Yellow: the range when special attention should be given to the parameter the instrument represents.

Green: Normal operating range of the parameter the instrument represents.

38
Q

ROTOR BRAKE / GUST LOCK LIMITATIONS

Operating an engine against the gust lock is _____.

Rotor brake shall not be applied with engine(s) operating and rotor turning except during an emergency stop. Maximum rotor speed for emergency rotor brake applications is _____% NR.

Routine stops will be with engine(s) off, NR below _____% and with _____-_____ psi applied to stop the rotor in not less than _____ seconds.

Minimum rotor brake pressure for engine start is _____ psi. Maximum rotor brake pressure for engine start is _____ psi.

Use of the rotor brake with engine(s) operating is restricted to _____ and _____ engine starts and operations at ____ only.

Single and dual engine starts and operation at _____ with rotor brake on are not time limited.

A

Prohibited

76% NR

40%, 150-180 psi, 12 seconds

450 psi, 690 psi

Single and Dual, IDLE

IDLE

39
Q

GUST LOCK LIMITATIONS WITHOUT ROTOR BRAKE

Dual-engine operations with gust lock engaged is _____.

Single-engine operations with gust lock engaged will be performed by authorized pilot(s) at _____ only.

Gust lock shall not be _____ with engine running.

A

Prohibited

IDLE

Disengaged

UH 60M (2 decks)

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