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BH407 > Type Training Slideshow > Flashcards

Type Training Slideshow Flashcards

1
Q

The crew and passenger compartment is ___ cm wider than the 206 airframe

A

18 cm

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2
Q

What is the landing gear configuration on the 407 which helps prevent ground resonance?

A

3 point attachment configuration

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3
Q

What is the main rotor diameter of the 407?

A

35 feet

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4
Q

What is the overall length of the 407?

A

41.4 feet

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5
Q

The pitot tube supplies impact air pressure to the airspeed indicator and the ______

A

PRCU - Pedal Restrictor Control Unit

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6
Q

The two static ports are connected together to equalize the static pressure, which is supplied to….

A

Airspeed Indicator
Altimeter
VSI
PRCU (Pedal Restrictor Control Unit)

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7
Q

T or F - The static ports are heated

A

True

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8
Q

With crew doors removed, the indicated altitude may be up to ___ feet lower than the actual altitude

A

100 feet

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9
Q

The maximum operating altitude is ________ Hp or ___________Hd, whichever is lower.

A

20,000’ Hp or 20,000’ Hd
Whichever is lower

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10
Q

What is the maximum rate of climb?

A

2000 feet per minute

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11
Q

What are the slope limitations?

A

10 degrees nose up or side slopes,
5 degrees nose down

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12
Q

What is the autorotation VNE?

A

100 knots

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13
Q

When shall engine anti-ice be on?

A

ENG ANTI ICE shall be ON in visible moisture when OAT is below 5 degrees Celsius

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14
Q

What is the minimum ambient air temperature?

A

-40 degrees for all altitudes

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15
Q

What is the maximum ambient air temperature?

A

51.7 degrees Celsius at sea level and decreases with Hp at a standard rate of 2 degrees per 1000’

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16
Q

What engine is in the 407?

A

Rolls Royce 250-C47B

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17
Q

Do all Custom 407s have IBF and Particle Separators installed?

A

Yes

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18
Q

What does ECU stand for?

A

Electronic Control Unit

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19
Q

What does HMU stand for?

A

Hydro Mechanical Unit

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20
Q

What are 3 things the ECU monitors?

A

MGT (measured gas temperature)
Ng
Hp
Nr
TMOP (engine torque meter oil pressure)
P1 Ambient Pressure
PLA (Power Level Angle)
CIT (Compressor Inlet Temp)
Collective Pitch

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21
Q

When the primary governor fails, the control of the engine is relinquished to the revisionary governor to maintain ____ mode

A

Auto Mode

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22
Q

When the primary governor fails, does the revisionary governor support auto relight?

A

No

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23
Q

When the primary governor fails, does the revisionary governor support automatic start?

A

No

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24
Q

The ECU can detect engine flameout and will attempt auto relight until the engine decays below ___

A

50% Ng

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25
Q

In the alternate start sequence, when do you open the throttle to idle?

A

16% Ng

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26
Q

When do you release the starter in the alternate start sequence?

A

Release the starter once light off is detected

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27
Q

When can you start the helicopter with the FADEC in manual mode?

A

Manual mode start is used in an EMERGENCY only. Permission required from Transport Canada

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28
Q

What are the MGT start limitations?

A

826 (843) to 927 for 10 seconds
Above 927 for 1 second

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29
Q

In a FADEC aborted or pilot initiated start, FADEC will keep starter engaged until MGT is below ____

A

150 degrees C

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30
Q

When an exceedance has occurred, what indications will the pilot have?

A

“E” will appear on the gauge
CHECK INSTR light will illuminate

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31
Q

How can you check the value of an exceedance?

A

Depressing the CHECK INSTR light

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32
Q

What is the max continuous MGT?

A

100-727 (green arc)

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33
Q

What is the takeoff MGT limitations?

A

727-779 (yellow arc) for 5 minutes

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34
Q

What is the MGT Transient?

A

780-826 for 12 seconds
or
780-905 for 12 seconds
*depends on gauge

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35
Q

When does the trend arc begin flashing & exceedance recorded for takeoff MGT?

A

Trend arc flashes after 4.5 minutes in takeoff range, stops at 5 minutes
Exceedance recorded after 5 minutes

36
Q

What is the max continuous Ng?

A

63-105%

37
Q

What is the Ng transient?

A

105.1-106.5% for 10 seconds

38
Q

What is the maximum continuous torque?

A

93.5%

39
Q

What is the takeoff torque limitation?

A

93.5%-100% for 5 minutes

40
Q

What is the torque transient?

A

105% for 5 seconds

41
Q

What are the caution/warning lights related to the FADEC? (8)

A

FADEC FAIL
FADED DEGRADED
FADEC FAULT
RESTART FAULT
ENGINE OVERSPEED
ENGINE OUT
AUTO RELIGHT
FADEC MANUAL

42
Q

What are the indications of a failure to Reversionary Mode?

A

FADEC DEGRADE
FADEC FAULT
RESTART FAULT

43
Q

FADEC DEGRADE, FADEC FAULT, RESTART FAULT lights illuminate. What are the required pilot actions?

A

Leave in AUTO
Fly smoothly and non aggressively
Land as soon as practical

44
Q

_______ seconds after failure, FADEC transitions to manual mode

A

2-7 seconds (time dependent on power state at time of failure)

45
Q

What are the indications of a FADEC failure?

A

FADEC horn (ding dong)
FADEC FAIL caution warning light

46
Q

What are the actions required from the pilot in a FADEC failure?

A

Match bezel to Ng using collective pitch at low power setting or by advancing throttle twist grip at high power setting if time permits

Control RPM with throttle and collective

When established in manual mode flight, depress FADEC mode switch to mute horn

Land as soon as practical

47
Q

FLY position on the throttle corresponds to _____

A

90% Ng

48
Q

In a FADEC failure with a high power setting, Ng above 90% , this could result in an _________
1) Possible Underspeed
2) Minor Change
3) Possible Overspeed

A

possible underspeed

49
Q

In a FADEC failure in cruise power with a mid power setting, this could result in a ________
1) Possible Underspeed
2) Minor Change
3) Possible Overspeed

A

minor change

50
Q

In a FADEC failure with a low power setting on approach or descent, this could result in a _______
1) Possible Underspeed
2) Minor Change
3) Possible Overspeed

A

possible overspeed

51
Q

True or False

After a FADEC failure, depressing the MODE switch will only mute the horn as the transition has already taken place

A

True

52
Q

What pilot actions are required if the FADEC DEGRADED light illuminates?

A

Fly smoothly and non aggressively, remain in AUTO mode

Land as soon as practical

53
Q

What pilot actions are required if the FADEC FAULT light illuminates?

A

Remain in AUTO mode

Maintenance action required before next flight

54
Q

What pilot actions are required if the RESTART FAULT light illuminates?

A

Not able to restart. Attempting to restart may result in a hot start

Remain in AUTO mode

Land where maintenance is available

55
Q

A RESTART FAULT may be cleared by performing the _________ procedure.

A

Piston parking procedure

56
Q

What is the avoid range for Np?

A

68.4-87.1%

57
Q

What is the maximum continuous Np?

A

100%

58
Q

What is the Np transient?

A

102.1-107.3% for 15 seconds

59
Q

When will the ENGINE OVSPD light illuminate?

A

Np is 102.1-107.3% for 2.5 seconds

60
Q

What modes does the FADEC ECU continuously monitor for Np overspeed conditions?

A

Auto, reversionary and manual modes

61
Q

When the engine reaches 118.5 +/- 1% Np, __________ will occur

A

Overspeed limiting

The overspeed solenoid valve will be activated which reduces fuel to the engine to a minimum flow condition

62
Q

Engine Anti-Ice activates a ______ valve, which directs ______ air into engine inlet vanes to prevent ice build up

A

solenoid valve, bleed air

63
Q

How many magnetic chip detectors are on the engine?

A

2

64
Q

How many engine oil filter assemblies are there?

A

Two
Engine Oil Filter
CEFA (scavenge filter)

65
Q

True or False

Normal engine oil pressure is required to indicate accurate torque value

A

True

66
Q

What is the yellow arc for on the engine oil pressure gauge?

A

50-90 psi, operation below 79% Ng

67
Q

What is the red triangle for on the engine oil pressure gauge?

A

Marks 200 psi, maximum for cold start

68
Q

What pilot actions are required if the engine oil pressure is below minimum?

A

Monitor engine oil pressure and temperature

Land as soon as possible

69
Q

What pilot actions are required if the engine oil pressure is above the maximum or fluctuating abnormally?

A

Monitor engine oil pressure and temperature

Land as soon as practical

70
Q

What is the max glide airspeed for an auto?

A

80 kts

71
Q

What is the VNE in an auto?

A

100 kts

72
Q

What is the min sink rate in an auto?

A

55 kts

73
Q

________ pumps move fuel from the forward cell to the aft cell

A

transfer pumps

74
Q

________ pumps move fuel from the aft cell through the fuel valve, through the AF fuel filter, CEFA then HMU

A

boost pumps

75
Q

______ and _______ are on an alternate circuit to continue operating if all DC Bus power is shut off

A

Left XFR and Left Boost Pump

76
Q

How many fuel quantity probes are there to provide fuel indication to the cockpit?

A

Three

77
Q

Both boost pumps and XFR pumps incorporate __________ in case of boost/XFR pump failure

A

check valves

78
Q

If both fuel xfr pumps cease to operate, how much fuel may be trapped in the forward tank?

A

Up to 151 lbs

79
Q

What does the FUEL FILTER light indicate?

A

Airframe fuel filter in impending bypass

80
Q

What does the FUEL LOW light indicate?

A

100 +/- 10 lbs of fuel remain in aft tank

81
Q

What is the recommended minimum battery voltage for start?

A

24 volts

82
Q

What are the starter limitations when on battery power?

A

60 seconds on/60 seconds off
60 seconds on/60 seconds off
60 seconds on/30 minutes off

83
Q

What are the starter limitations when on external power?

A

40 seconds on/30 seconds off
40 seconds on/30 seconds off
40 seconds on/30 minutes off

84
Q

What actions are required by the pilot when GEN FAIL light illuminates?

A

GEN FIELD and GEN RESET circuit breakers- check IN

GEN switch - RESET then ON

If power not restored, place GEN switch to OFF, land as soon as practical

*With GEN off a fully charged battery will provide approximately 21 minutes of power for basic helicopter and one VHF COMM radio

85
Q

What actions are required by the pilot when an excessive electrical load is observed?

A

GEN switch - OFF
BATT switch - OFF
Left FUEL BOOST/XFR circuit breaker switch - ON
Airspeed - 60 knots or less
Land as soon as practical

86
Q
A

BH407 (2 decks)

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