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53E > 1. BASIC LIMITS - Sheet1 (1) > Flashcards

1. BASIC LIMITS - Sheet1 (1) Flashcards

1
Q

Min Crew required to operate the helo under normal conditions are?

A

pilot, copilot, aircrewman

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2
Q

419 T5

A

769° CONTINUOUS
810° 30 MIN MILITARY
829° 10 MIN MAX

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3
Q

416/416A T5

A

713° CONTINUOUS
753° 30 MIN MILITARY
773°/792° 10 MIN MAX

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4
Q

T5 INDICATION OF A HOT START

A

650°

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5
Q

T5 Peak Momentary

A

900

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6
Q

T5 INDICATIONS OF A POST ENGINE SHUTDOWN FIRE

A

320°

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7
Q

2 Engnine Overheat Warning

A

302°C/ 575°F

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8
Q

Ng GROUND IDLE

A

60.5-70% (VARIES W/ OAT)

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9
Q

Ng STARTER DROPOUT

A

51-58%

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10
Q

Ng NORMAL OPERATION

A

60.5-101.1%

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11
Q

Ng MAX

A

101.10%

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12
Q

Ng TRANSIENT

A

102.9% for 30 seconds

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13
Q

Normal Starter Engagment to Gnd Idle

A

60 sec

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14
Q

ALL Ng Limits

A

60.5 – 70 Ground Idle – Varies w/ OAT (2.1.9)
51 – 58 Starter Dropout (2.1.11.1)
60.5 – 101.1 Normal Operation (Fig 4-1 Sheet 1 of 3)
101.1 Maximum Military Operation (Fig 4-1 Sheet 1 of 3)
102.9 30 Sec Max (Fig 4-1 Sheet 1 of 3)
20 Minimum for Engine Start – Introduce Fuel (7.4)
26-32 Max Ng Start

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15
Q

Nf NORMAL OPERATION

A

100-105%

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16
Q

Nf MAX

A

110%

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17
Q

Nf TRANSIENT

A

111- 125% (5SEC)

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18
Q

Nf OVERSPEED (Momentary)

A

129%

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19
Q

What does Nf over speed do?

A

Reduces Wf to 75 +/- 2% Ng

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20
Q

All Nf Limits

A

111 – 125 5 sec (4.2.1.3.2)
110 +/- 2 Overspeed Protection Activates – Reducing WF to 75 +/- 2%Ng (2.1.6)
110 Maximum (Fig 4-1 Sheet 1 of 3)
100 – 105 Normal Operation (Fig 4-1 Sheet 1 of 3)

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21
Q

Q NORMAL

A

100%

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22
Q

Q PRECAUTIONARY

A

100-137%

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23
Q

Climb Q for <60K? >60K?

A

110%; 121%

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24
Q

Q 30MIN MILITARY

A

121%

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25
Q

Q MAX

A

137% (<10MIN)

26
Q

Q TRANSIENT OVERTORQUE

A

160% <1MIN

27
Q

Contingency Power for <2 min 419 single or dual engine operations?

A

157% Q and may reach as high as 105% Ng and 925C

28
Q

All Q Limits

A

160 Max for 1min (Fig 4-1)

137 Maximum Operation for 10min/ Engine Overtorque (Fig 4-2)

121 Military Operation for 30min/Climbing Q for GW > 60K (Fig 4-2; 4.4.5)

110 Climbing Torque for Gross Weight < 60,000 lbs (4.4.5)

100 – 137 Precautionary Range (Fig 4-1 sheet 1 of 3)

100 Max Continuous (Fig 4-2)

29
Q

Nr NORMAL

A

100-105% <50k lbs

103-105% >50k lbs

30
Q

Nr PRECAUTIONARY

A

95-100% LOW END

105-118% HIGH END

31
Q

Nr MAX

A

118%

32
Q

Nr OVERSPEED

A

118%-129% (Visual Inspection)

>129% (Removal)

33
Q

Rotor brake limits assiociated with Nr: apply High pressure rotor brake? Low Pressure? Light on?

A

50 +/- 4 to 25 +/- 4 Rotor Brake – RTR BK Light On (2.4)
50 or Below High Pressure Rotor Brake can be engaged (2.4.3.2)
25 or Less Low Pressure Rotor Brake Engagement (2.4.3.1)

34
Q

All Nr limits

A

> 129: Removal of inspection parts
118-129: Visual Inspection of M/R hub, T/R hub, and T/R Drive shaft
118 Maximum Operations (Fig 4-1 Sheet 1 of 3)
104– 107 Flat Pitch (7.5)
105 – 118 Precautionary Range – High (Fig 4-1)
103 – 105 For Gross Wt 50,000 to 73,500 (Fig 4-1)
100 – 105 For Gross Wt < 50,000 lbs (Fig 4-1)
95 – 100 Precautionary Range – Low (Fig 4-1 Sheet 1 of 3)
50 +/- 4 to 25 +/- 4 Rotor Brake – RTR BK Light On (2.4)
50 or Below High Pressure Rotor Brake can be engaged (2.4.3.2)
25 or Less Low Pressure Rotor Brake Engagement (2.4.3.1)

35
Q

ENGINE OIL TEMPS

A

NORMAL: 40°-135°C
10MIN MILITARY: 136°-145°C
MAX: 145°C

36
Q

Max Allowable time for ENG OIL High press CL during Engine Starts?

A

3 min

37
Q

NGB OIL TEMPS

A

NORMAL: 40°-130°C
60MIN 131°-145°C
MAX: 145°C
EXCURSIONS ABOVE 130 REQUIRE A SERVICEABILITY CHECK.

38
Q

MGB OIL TEMPS

A

NORMAL: 40°-120°C
60MIN MILITARY: 121°-145°C
MAX: 145°C
EXCURSIONS ABOVE 120 REQUIRE A SERVICEABILITY CHECK.

39
Q

MGB OIL PRESSURES

A

MIN: 25psi
NORMAL: 50-65psi
MAX: 150psi
If MGB Oil pressure decreases to less that 45 or by more than 10 in flight Land as soon as practacle.

40
Q

HYDRAULIC PRESSURE

A

MIN: 2600PSI
NORMAL: 2600-3300PSI
MAX: 3300PSI

41
Q

AIRSPEED

A

30 Rearward
35 Sideward
Below 40 Airspeed indicators are unreliable
85 Autorotation Min Sink Rate
110 Autorotation Max Glide Rate
130 maneuvering Airspeed
140 Landing Gear Actuation
150 Forward
150 Landing Gear Extended 150 External Load
150 EAPS Door Closed 130 Maneuvering Flight
Hover Turns of 360 Deg. < 15sec are prohibited

42
Q

ANGLE OF BANK

A

GW< 56000lbs & DA>3000 & A/S>130KIAS: 60°
GW<56000lbs & DA>3000 OR GW<56000lbs & A/S>130KIAS: 45°
GW>56000lbs: 30°

43
Q

ACCELERATION LIMITS

A
  1. 5-2.0Gs: GW=56000lbs & DA=3000’

0. 5-1.5Gs: GW>56000lbs OR DA>3000’

44
Q

LANDING LIMITS

A

<46.5k main gear/tail skid: 672fpm

46.5k-69.75k main gear: 360fpm

45
Q

HOOK LIMITS

A

SINGLE POINT: 36000lbs

DUAL POINT: 21600lbs individually 36000lbs total

46
Q

Min Hook weight: 1pt? 2pt?

A

4k

1k per hook

47
Q

LATERAL CG LIMITS

A

8.5” right-13.5” left

48
Q

ICING LIMITS

A

ICE DETECT ON: Forecast or known trace-unlimited; light-30 minutes

ICE DETECT OFF: Forecast or known trace-unlimited day/night; light-30 minutes day only

Visible moisture <4°C: EAPS closed, engine, windshield, pitot heat, FLIR anti-ice on

49
Q

DUAL ENGINE TORQUE OPERATION

A 
MAX CONTINUOUS: 100%
MILITARY: 121% 30MINS
MAX: 148% 10MINS
CONTINGENCY (419): 157% 2MINS
TRANSIENT: 160% 1MIN
50
Q

SINGLE ENGINE TORQUE OPERATION

A 
MAX CONTINUOUS: 100%
MILITARY: 121% 30MINS
MAX: 148% 10MINS
CONTINGENCY (419): 157% 2MINS
TRANSIENT: 160% 1MIN
51
Q

Nf Overspeed Protection

A

110+/-2%

52
Q

Contingency Power

A

157%Q; 5000 shp for 2 minutes followed by 1 hour at maximum continuous.
Can expect 105 Ng and 925°C T5

53
Q

WIND LIMITS

A

> 100: A/C to Hangar deck(Boat)

> 60: A/C into wind, blades removed, gust lock on, pylon spread (Boat SOP)

> 45<60: tanks full, blades folded, struts deflated, pylon spread

Basic:
60 kts: Max for a/c to be tied down.

> 45Kts - No Rotor engagement/disengagement, Blade or Pylon fold

> 20 Kts - Pylon fold into wind

54
Q

Cabin Floor Static Limit

A

300 lbs/ft²

55
Q

APP LIMITS

A

EXH TEMP - 621°C

RPM - 110% (102±1% GENS OFF/Nr ≤95%)

     - 100% Normal Operation

10,000 Max Altitude – PA

6 +/- 1 Low Oil Pressure w/ Auto Shutdown

2800-3100 Accum Press Gauge >= 50deg

2000-2800 <50deg

56
Q

Water Operating Limits

A

Stay afloat 2 hrs in 1-3’ waves, winds 7-16kts, 10° Roll, water tazi 8 kts at 46,500lbs.

57
Q

How long can Compas Fail CL remain illuminated after the start?

A

5-8 sec

58
Q

How long can BIM CL remain illuminated after the start?

A

2min

59
Q

How long can IMDS CL remain illuminated after the start?

A

??????

60
Q

Nf OVERSPEED PROTECTION

A

110 +/- 2 %

61
Q

Shut down requirement?

A

1 min of:
Taxi
Ops at or above min gov with min collective pitch or
Gnd idle

53E (30 decks)

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