Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

AW169 Type Rating (Leonardo) > Powerplant (71) > Flashcards

Powerplant (71) Flashcards

1
Q

What can be seen on the PFD & MFD with regards to Engines?

A

PFD - PI(Tq), NF, NR, ENG Oil T’s/P’s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What engines are fitted?

A

PW210-A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How is engine mounted?

A

2 x stainless steel mounts
1 x titanium torque tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the Central Support and Engine cowlings made from?

A

Titanium
(for fire protection)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the exhaust lateral and exhaust central cowlings made from?

A

Composite material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the sections of the Engine?

A
  1. Reduction Gearbox
  2. Compressor
  3. Combustion Chamber
  4. Turbine
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How is the speed from the PT reduced to a useable output?

A

Via single stage reduction gear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How is the engine accessory gearbox driven?

A

Via the Compressor Turbine (CT).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where is the Np/Tq sensor fitted?

A

Outside of the Accessory Gearbox

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How many stages in the compressor?

A

2
(1 Axial)
(1 Centrifugal)
TITANIUM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the purpose of the Variable Inlet Guide Vanes (VIGVs)?

A

To maintain the efficiency of the compressor.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How are the VIGVs controlled?

A

Via the FADEC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How is the Power Turbine (PT) temperature regulated?

A

Via P3 air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How are the Compressor Turbine (CT) blades attached?

A

Fir Tree serrations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How many Power Turbines are there?

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How is exhaust gas temperature monitored?

A

8 Thermocouples mounted in the turbine exhaust

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Where is the Engine Fuel Control Unit (FCU) mounted?

A

Mounted and driven by the Engine Reduction Gearbox

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where is fuel flow measured?

A

Via the FCU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Where is the Permanent Magnetic Alternator (PMA) for the engine installed?

A

Within the FCU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Is there bypass functionality within the fuel filter?

A

NO
Could result in an Engine Out condition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Where is the Fuel Oil Heat Exchanger Fitted?

A

On top of the RGB.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

WHat is the purpose of the Fuel Flow Divider

A

To divert fuel to the primary and secondary manifolds
enables rapid and cooler engine starts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What happens to fuel drained form the fuel flow divider during engine shutdown?

A

It is used during the next engine start

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

How many fuel nozzles are there?

A

13
10 duplex, 3 simplex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What component is the primary means for engine shutdown? What can be used in an emergency?
1. The metering valve (needle) 2. In an emergency the FIRE ARM or EDCU can be used
26
What is the purpose of the stepper motor within the FCU?
Controls the metering valve
27
What is the purpose of the start exciter and what is its output?
Converts low voltage aircraft electrical bus to high voltage 3,000Vdc
28
How many and in what position are the spark igniters?
- 2 - 4 & 8 O’clock position
29
How do the igniters behave on the ground and in flight (3)
ON GROUND One igniter (unless one fails then the other will initiate) IN AIR Two igniters
30
When does Ignition drop off during engine start?
50%Ng
31
What powers the VIGV Actuator?
The engine PMA
32
What redundancy is built into the EECUs?
Each EECU is dual channel
33
What powers the EECUs?
NORM: - PMA within the FCU START and BACKUP: - Channel A - EMER - Channel B - ESS
34
What is the purpose of the Rotary Variable Differential Transducer (RVDT)?
Provides position of the collective to the EECU
35
What is the purpose of IDLE APU on ENG1?
Drives components attached to the Accessory Gearbox
36
What happens if the ACC Actuator fails to engage within 10 seconds?
[APU MODE FAIL] Caution
37
To ENGAGE #1 to MAIN from APU (MAIN SELECTION)
1. #1 IDLE/APU, #2 FLT 2. #1 OFF, #2 IDLE/FLT
38
To DISENGAGE #1 from MAIN to use as APU mode… (ACC SELECTION)
1. #1 OFF, #2 OFF/IDLE/FLT 2. #1 IDLE/APU, #2 FLT
39
Is it possible to re-clutch engine #1 to the main rotor with both engines off?
NO
40
What happens when OEI TRG is selected?
OEI TNG indicates on the PI
41
What does a flashing 2.5m indicate on the PFD?
That the 2.5m OEI will expire within 10 secs
42
What does pressing the AEO LIM SEL do?
Selects between LOW and HIGH Torque Limits
43
What is the Take off Power (TOP) time limit?
30 mins
44
What 3 fault categories are associated with the EECU?
1. Minor (No CAS) 2. Degraded (Caution + ENG SYnoptic) 3. Major (Warning + behaviour)
45
What is a fail Idle condition in the EECU? [1(2) EECU FAIL]
Major fault where the engine reverts to IDLE to keep the associated generator online
46
What is a Fail Fixed condition on the EECU? [1(2) FAIL FIXED]
MAJOR fault where the fuel metering valve is maintained at a fixed position
47
Where are EECU Degraded faults displayed? [1(2) ENG DEGR]
MFD Engine Synoptic page
48
What provides Ng?
Permanent Magnetic Alternator (PMA)
49
What do the EECUs cross-talk for? (3)
- OEI Detection - Engine Matching - OEI Training
50
How many thermocouples are fitted for ITT and what is the signal called?
- 8 - T6
51
When will a yellow NR symbol be posted?
NR miscompare (>3% difference between EECU1 & 2)
52
What does [1(2) FUEL FILTER DEGR] signify?
Impending blockage
53
What are the starter duty cycles?
On of the following 3 times… - 45s on, 10m off - 30s on, 5m off - 15s on, 2m off Then 30 mins off.
54
Can the ENG oil filter be bypassed?
YES
55
Where is the Air Cooled Oil Cooler (ACOC) located?
Fwd section of the Engine RGB
56
What is the purpose of the thermal bypass in the Air Cooled Oil Cooler (ACOC)?
For oil to bypass the matrix when <54°C
57
What are the 2 methods to burn a chip?
1. EDCU 2. MFD Bezel Key
58
What does [1(2) ENG OIL FILTER] signify?
Impending oil filtration bypass
59
Where is the Engine Oil pump located?
Within the Engine RGB
60
What is the primary purpose of the engine oil?
To lubricate the engine bearings
61
Where is the engine chip detector located?
At the bottom of the RGB
62
What causes [1(2) ENG OIL TEMP]?
Oil temp >135°C
63
What drives the APU actuator to DISENGAGE ENG1 from the MAIN?
Electrical motor
64
What state must ENG2 be at when configuring for APU mode?
HIGHER STATE
65
What is the max starting temp?
- 750°C - 825°C transient
66
Is there HOT START protection whilst in the air?
NO
67
How is oil distributed throughout the engine?
- Single pressure pump - 3x scavenge pumps

AW169 Type Rating (Leonardo) (30 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions