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Flight Study > AW139 Gen Info and Systems > Flashcards

AW139 Gen Info and Systems Flashcards

1
Q

Main Rotor Diameter

A

45.3ft (13.8m)

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2
Q

Length (tip to tip)

A

54.6ft (16.6m)

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3
Q

Increased MGW

A

14,994# (6800kg) Supplement 50

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4
Q

MGW for Takeoff

A

14,112# (6400kg)

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5
Q

MLG Width

A

10ft

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6
Q

Horizontal Stab Width

A

11.5ft

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7
Q

Cabin Volume

A

282ft cubed (8cubic meter)

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8
Q

Engines

A

Pratt-Whitney PT6C-67C, 4 stage axial and single stage centrifugal compressor; single stage compressor turbine; dual stage power turbine; reverse flow camber combustion chamber

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9
Q

Increased Baggage Weight

A

Sup 31

662# (300kg)

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10
Q

100% Nr

A

296 RPM

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11
Q

Number Chip Detectors

A

5: 3-MGB, IGB, TGB

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12
Q

Main Battery

Aux Battery

A

NiCd, 44 Amp-hours

NiCd, 27 Amp-hours

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13
Q

DC Generators rating?

A

x2, 300 Amps at 30VDC, de-rated to 200 Amps

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14
Q

Aux Tank Weight and Balance Sup?

A

Supplement 15

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15
Q

Bus Tie Switch Relay #?

A

K10

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16
Q

Gen 1 Switch Relay #?

A

K5

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17
Q

Gen 2 Switch Relay #?

A

K6

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18
Q

Battery Master Switch Relay #s?

A

K1 and K2

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19
Q

Battery Main Switch Relay #?

A

K3

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20
Q

Battery Aux Switch Relay #?

A

K4

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21
Q

Ext Power Switch Relay #?

A

K9

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22
Q

Inhibited Relays With External Power?

A

K3, K4, K5, K6

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23
Q

Hydraulic System #2 50%?

A

Util SOV 2 closed and HYD UTIL PRESS caution light on

24
Q

Hydraulic System #2 28%?

A

HYD UTIL PRESS CAS caution goes off (UTIL SOV 2 opens) and 2 SERVO CAS comes on (TR SOV closes)

25
Q

Hydraulic System #2 22%?

A

Util SOV 2 closes and TR SOV stays closed; 2 HYD MIN, 2 SERVO and HYD UTIL PRESS cautions illuminated.

26
Q

Hydraulic System #1 Reservoir at 22%?

A

Util SOV 1 closed; 1 HYD MIN and EMER LDG PRESS cautions illuminate.

27
Q

Electric Hydraulic description?

A

3 pump on HYD System 1, Ground use only = ~107 bar

28
Q

Under what FAR is the AW-139 certified?

A

FAR Part 29

29
Q

The hydraulic pumps are what type?

A

constant pressure, variable volume

30
Q

When flying AW139 the pilot must use polarized sun glasses.(T/F)

A

FALSE

31
Q

What CAS messages come on with a complete failure of the #1 Hydraulic system?

A

1 HYD OIL PRESS + 1 HYD PUMP + 1 SERVO + EMERG LDG PRESS

32
Q

If you are in flight and the BAG DOOR CAS message comes on, what are your emergency procedures?

A

Reduce A/S below 100 Kts and Land ASA Possible

33
Q

What CAS message will not stop announcing until you have satisfied its requirement?

A

Low Rotor

34
Q

What two important items will you lose with a MAU 2 CAS message?

A

AWG FAIL and GPS FAIL

35
Q

How do you tune your radios in flight with a 1(2)MAU OVHT CAS message?

A

Use tuning function on PFD using CCD

36
Q

When using external power for starting, you turn the external power switch on and nothing happens. What do you do?

A

Reset 1 AMP circuit breaker in the nose compartment if modified.

37
Q

What is the Critical Relative Wind Sector?

A

090-135 degrees

38
Q

For an aircraft to be certified for IFR, what performance standard must it be able to attain?

A

50 fpm OEI to 1000’ above the take-off area.

39
Q

To which BUS does external power connect?

A

MAIN 1

40
Q

What are the main functions of the GCU’s?

A

CONTROL
MONITOR
PROTECT

41
Q

During engine starting what does the AUX Battery do?

A

Feeds the ESS Buses during engine start up

42
Q

Are MAIN and AUX Batteries recharged by the External Power Unit?

A

NO - they are automatically disconnected when external power is applied

43
Q

What do the PDP’s do?

A
  • Connect GENs and BATTs to LH and RH Distribution Bus Bars via MAIN LOAD BUS 1 + MAIN LOAD BUS 2
  • Check and connect the external power source to the a/c Distribution Bus Bars
  • Control the BUS TIE Contactor
44
Q

BATTERY MASTER Switch OFF does?

A

Disconnects MAIN + AUX batteries from all BUS BARS

45
Q

BATTERY MASTER Switch ON does?

A
  • Connects MAIN + AUX Batteries to the ESS BUSES

* Enables the MAIN + AUX Battery Switches

46
Q

SINGLE GENERATOR FAILURE (1 DC GEN)…what happens?

A

BUS TIE contactor automatically closes

NON ESS BUS 1 and NON ESS BUS 2 are disconnected

47
Q

MOMENTARY OVERCURRENT SITUATION… what happens?

A

Drives the DC BUS FAIL message in the CAS.

Inhibits the BUS TIE contactor automatic operation (remains open).

48
Q

SHORT CIRCUIT (DC BUS FAIL + 1 DC GEN)… What happens?

A

Disconnects relevant generator (thus displaying 1(2) DC GEN message)

Disconnects relevant battery (causing MAIN BATT OFF or AUX BATT OFF to be displayed) BUS TIE contactor remains OPEN

PILOT MUST DO NOTHING

49
Q

What does MAIN BATT OFFLINE caution message mean?

A

One of the two batteries is not connected to the ESS BUS

50
Q

On power up what is the default selection on the Autopilot Control Panel?

A

ATT

51
Q

What difference is there when using the SAS release on the cyclic rather than AP control Panel?

A

Actuators are not automatically re-centered (as they are when using the APCP)

52
Q

What are the requirements for the AP Test?

A
  • On Ground
  • Both AP off
  • Full hydraulic power (207 bar / 3000 psi)
  • Flight Controls centred, collective full down (MPOG *Minimum Pitch On Ground)
53
Q

Which AP is the Trim Master?

A

The first AP engaged

54
Q

What 3 actions does the GA mode initiate?

A
  • Collective - climbs with v/s of 1000 ft/m
  • Power - maintains 80 Kts IAS
  • Roll - it levels the wings
55
Q

What does OS mode enable you to do?

A

It enables the pilot to select and follow a new heading directly overhead a station.

56
Q

What four parameters are required to engage HOV mode?

A

IAS less that 70 KIAS
GS less than 60 Kts
GS less than 40 Kts Lateral
RHT greater than 30 ft and less than 2000 ft

Flight Study (17 decks)

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