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BK117 C2/C2e > Limitations > Flashcards

Limitations Flashcards

1
Q

Types of Operations

A
  • Land operations under day/night VFR, equipment must be installed and serviceable
  • Land IFR with special equipment installed and operational. FMS 9.2-8
  • Over water with emergency float system FMS 9.2-9
  • IFR and Night VFR PROHIBITED if auto-trim is inop in pitch and roll or a combined inop auto-trim in cyclic and yaw axis
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2
Q

Max Gross Weight

A

3585 kg

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3
Q

Min Gross Weight

A

1750 kg

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4
Q

Floor Loading Limits

A

600 kg/sq meter

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5
Q

Tie Down Ring Limits

A

70 kg

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6
Q

VNE OEI

A

110 kts or as shown on VNE tables, whichever is less

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7
Q

VNE Steady Autorotation

A

90 kts or as shown on VNE tables, whichever is less

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8
Q

Standard VNE (Below 3000 kg gross mass)

A

150 kts or as shown on VNE tables, whichever is less

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9
Q

Standard VNE (Above 3000 kg gross mass)

A

145 kts or as shown on VNE tables, whichever is less

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10
Q

Max Operating Altitude

A

18,000 ft PA

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11
Q

Max Operating Altitude for Hover IGE/Takeoff or Landing

A

18,000 ft DA or PA, whichever is less

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12
Q

Min Ambient Air Temps

A

Min Air Temp(with cold kit) - (-45 C)
Min Air Temp(with no cold kit) - (-30 C)
Min Air Temp(with Bleed Air heating defective) - (+10 C)

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13
Q

Max Ambient Air Temps

A

Max Air Temp - ISA +35 C (max +50 C)

  • Temps over +35 C oil cooler block plate LH/RH must be removed
  • Temps over +35 C lower cockpit temp through ventilation, max ground operating time is 30 min
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14
Q

Battery Temp Limitations

A

Below -20 C OAT, battery heater must be used to at least -20 C

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15
Q

RPM Limitations (Power On)

A

Min Transient - 85%
Min Continuous - 96% above and below 2000 kg GM
Max Continuous - 104%
Partial Power (Torque less than or equal to 30%) - 106% for 5 min
Max Transient - 106% for 12 seconds

N2 limitations are the same

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16
Q

RPM Limitations (Power Off)

A

Min Continuous Below 2000 kg GM - 80%
Min Continuous Above 2000 kg GM - 85%
Max Continuous - 104%
Max Transient - 110% for 12 seconds

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17
Q

Engine Type

A

Turbomeca ARRIEL 1E2

18
Q

OEI Limits of Use

A
  • Actual OEI flight

No transient usage

  • MX check flights
  • Training (Only if FMS 9.1-3 is not installed)
  • Demonstration Purposes
19
Q

TOT Limitations (Starting)

A 
Max Starting - 8.5 FLI/785 C
Max Starting (Transient 5 sec) - 11 FLI/865 C
20
Q

TOT Limitations (All Engines Operating)

A

Max Continuous - 8.5 or 9.0 FLI (CPDS V2006 or subsequent if installed) 845 C (TOT numbers are not related to the FLI setting as FLI in these conditions is based on TQ or N1)

Max Takeoff (5 min, Less that Vy) - 10 FLI

21
Q

TOT Limitations (OEI)

A

Max Continuous - 11 FLI/845 C (TOT numbers are not related to the FLI setting as FLI in these conditions is based on TQ or N1)

2.5 min Power - 12.0 FLI/885 C (Record length, max temp, max N1, in logbooks. Max of 15 min mx action is required. Only times greater than 10 sec for a single event are to be accumulated)

22
Q

Torque Limitations (All Engine Operating) Based on Transmission Limits

A

Max Continuous - 8.5 or 9 (CPDS V2006 or subsequent if installed)/ 2 x 71% TQ

Takeoff Power (5 min, Less than Vy) - 10 FLI/2 x 88% TQ

Transient - 10.5 FLI/2 x 97% TQ for V <= Vy (12 seconds)

23
Q

Torque Limitations (OEI) Based on Transmission Limits

A

Max Continuous - 11.0 FLI/91.5% TQ

2.5 min Power - 12.0 FLI/125% TQ

Transient - 14 FLI/140% TQ for V <= Vy (12 seconds)

24
Q

N1 limitations (All Engines Operating)

A

Max Continuous - 8.5 or 9.0 (CPDS V2006 or subsequent is installed) or 98.8-100.0% N1

Takeoff Power (5 min, Less than Vy) - 10 FLI/100.2-101.9% N1

Transient - 10.5 FLI/103.3% N1 (12 seconds)

N1 limitations change based off of PA and OAT

25
Q

N1 Limitations (OEI)

A

Max Continuous - 11.0 FLI/100.2-101.9% N1

2.5 min Power - 12.0 FLI/101.8-103.3% N1 (Record length, max temp, max N1, in logbooks. Max of 15 min mx action is required. Only times greater than 10 sec for a single event are to be accumulated)

Transient - 107.5% N1 (12 seconds)

26
Q

Engine Oil Pressure

A

Min - 1.3 Bar
Caution - 1.3 to 1.5 Bar
Continuous - 1.5 to 5.0 Bar
Max Continuous - 5.0 Bar

Can be above 5.0 Bar for start and warm up at idle only

27
Q

Engine Oil Temp

A

Min Starting - Viscosity 3.0 to 3.9 cSt (-45 C)
Viscosity 5 cSt (-40 C)

Min Power Application - Viscosity 3.0 to 3.9 cSt (-10 C)
Viscosity 5 cSt (0 C)

Max Operating Temp - 115 C

28
Q

Starter/Generator Time Limits (Overheat Prevention)

A 
Battery
30 sec ON
60 sec OFF
30 sec ON
60 sec OFF
30 sec ON
30 min OFF
External
20 sec ON
60 sec OFF
20 sec ON
60 sec OFF
20 sec ON
30 min OFF
29
Q

Starter/Generator Time Limits (Engine Ventilation)

A 
Battery                           
20 sec ON                    
60 sec OFF                    
20 sec ON                     
23 min OFF                    
External
15 sec ON
60 sec OFF
15 sec ON
23 min OFF
30
Q

Starter/Generator Limits (Max Power and Min Battery Capacity)

A
  • 28 volt ground power limited to 800 amps (Occasional starts using up to 1000 amps can be tolerated)
  • Min battery capacity 27 Amp Hour
31
Q

Generator Limits (Volts/Amps)

A

Max Continuous - 200 Amps

Total Max Continuous (Both Generators) - 360 Amps

Normal Indications- 28.5 +/- .3 V and 0-200 Amps

Abnormal/Failure Indications - < 28.2 V or > 28.8 V or < 0 Amps or > 200 amps

32
Q

Main XMSN Oil Pressure

A

Min - 1.0 Bar
Caution - 1.0 to 1.5 Bar
Continuous - 1.5 to 5.0 Bar
Max - 5.0 Bar

XMSN OIL PRESS light is acceptable from 1.0 to 1.4 bar during the pressure build up phase

33
Q

Main XMSN Oil Temp

A

Continuous - (-10 C to 105 C)

Max - 105 C

34
Q

Fuel Quantities

A

Total (Usable - 229.2 Gal, 694.0 KG,
Unusable - 9.3 kg)

Main (Usable - 195.9 Gal, 593.2 KG,
Unusable - 3.3 KG)

Supply Left (Usable - 15.6 Gal, 47.2 KG, Unusable - 3.0 KG)

Supply Right (Usable - 17.7 Gal, 53.6 KG, Unusable - 3.0 KG)

35
Q

Main XMSN, Intermediate G/B, T/R G/B, and Main Rotor Hub OAT Limitations

A

All oils are usable down to -45 C

36
Q

Engine Oil OAT Limitations

A

MIL-PRF-23699 - (-40 C)

MIL-PRF-7808 - (-45 C To +15 C)

37
Q

Hydraulics Pressure Limitations

A

Min - 6,900 kPa
Low Caution - 6,900 kPa to 9,000 kPa
Continuous - 9,000 kPa to 12,000 kPa
High Caution (High Pressure Relief Starts to Open)- 12,000 kPa to 12,200 kPa
Max (Max Fluid Flow at High Pressure Relief Valve) - 15,000 kPa

Quantities
2.15.2
Hydraulic 1 - 1 liter
Hydraulic 2 - 1.2 Liter

38
Q

Prohibited Maneuvers

A
  • Aerobatic Maneuvers
  • Intentional Full-Down Autorotations
  • Flight into Icing Conditions. Unintentional flight into icing conditions should be left in the quickest way possible
39
Q

Rotor Starting/Stopping

A

50 kts max

40
Q

Hover Turns

A

Up to 3200 KG GM - 45 Degrees/Second

Above 3200 KG GM - 30 Degrees/Second

41
Q

Main Rotor Mast Moment Limits

A

Yellow Zone - 50%
Red Line - 64%

Above 77% the MM EXCEED will come on and will not disappear until power off

42
Q

Slope Limitations

A

Left - Max 11 Degrees
Right - Max 6 Degrees
Nose Up - Max 8 Degrees
Nose Down - Max 8 Degrees (If Terrain Allows)

BK117 C2/C2e (2 decks)

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