AW169 Type Rating (Leonardo) > Autoflight (22) > Flashcards

Autoflight (22) Flashcards

(58 cards)

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1
Q

What does SCAS Mean and what do they do?

A
  • Stability and Control Augmentation System
  • Provide AFCS input into the servo actuator
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2
Q

Where are the trim actuators mounted?

A

Under the floor of the cockpit (copilot position)

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3
Q

What controls both MR and TR SCAS?

A

The FCC

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4
Q

What components make up the AFCS?

A
  • FCC
  • 3x MRA SCASS
  • 1xTRA SCASS
  • 4x Trim actuators
  • APCP (Autopilot Control Panel)
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5
Q

What authority can the MRA (Main Rotor) SCAS provide?

A

+/- 10%

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6
Q

What authority does the TRA SCAS provide?

A

+/- 20%

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7
Q

Are the SCAS actuators self centring?

A

YES

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8
Q

The AFCS consists of the following controls:

A
  • Collective and Cyclic Grips
  • Pilot and copilot pedals
  • APCP
  • EDCU
  • DCP
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9
Q

Can FD SEL be given to the other side?

A

NO

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10
Q

What happens when you disengage the APs

A
  • Chime
  • ATT Appears on AFCS Bar
  • [1(2) AP OFF]
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11
Q

What happens when you press WLVL button on the cyclic?

A

6deg Pitch Up
Zero Roll

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12
Q

What does the fifth switch do on the cyclic beeper trim?

A

Engages HOVer hold

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13
Q

What does the collective beep trim fifth position (push down) do?

A

Disengages the collective AFCS Upper Modes

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14
Q

What component directs the trim actuators to move?

A

The FCC

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15
Q

How are the trim positions fed back to the FCC?

A

A resolver

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16
Q

What drives the Trim physically?

A

28 Vdc brushless motor

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17
Q

When is the Trim Actuator deactivated?

A
  • Hands on/feet on mode
  • WOW made
  • When de clutched through EDCU
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18
Q

How many channels are in the FCC?

A

2
Channel 1 - AP1
Channel 2 - AP2

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19
Q

What are the basic modes of the AFCS?
(3)

A

ATT
SAS
WLVL

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20
Q

What are the basic Functions of the AFCS?
(6)

A
  • Control Augmentation
  • Auto Trim
  • Turn coordination
  • Collective Decoupling
  • Collective Safety Function
  • Automatic Variable Speed Rotor
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21
Q

What are the BASIC upper modes of the AFCS?
(8)

A

HDG
ISA
ALT
ALTA
RHT
VS
HOV
GSPD

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22
Q

What are the Nav and Approach Modes of the AFCS?
(11)
(3NAV/ 8 APP)

A

NAV
VNAV
VOR
LOC
VAPP
NLOC
NAPP
DCL
NDCL
GA
NGA

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23
Q

How do you start a BIT on the AFCS AutoPilot Control Panel (ACP)

A

Pressing the two rotary knobs simultaneously
(only the panel is checked, not the AP)

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24
Q

What does the white mode status indicate on the Autopilot Control Panel

25
You press a rotary knob on the AP Control Panel - how does it indicate a successful engagement?
Green ring around the knob
26
How does an AFCS annunciation indicate a mode failure?
Amber dashes
27
How does an AFCS annunciation indicate a degraded mode?
Flashing amber box
28
What do amber chevrons either side of an AFCS Annunciation mean?
Excessive deviation
29
How do you view the status of the Force Trim?
Via EDCU
30
What happens to all other engaged modes when WLVL is pressed?
They are disengaged
31
How do you disengage the WLVL function?
Press ATT then selecting another mode
32
During WLVL activation, what happens when both new pitch and roll datum’s are achieved?
ALT mode is engaged
33
What is the purpose of Collective Decoupling (C-DCPL)?
To remove the automatic cross-coupling of controls
34
What speed can IAS be engaged?
>45kts
35
When can ALTA be engaged?
>40kts >200ft
36
What ROC does the G/A default to?
+1000fpm
37
What ROD does the ALTA default to?
-750fpm
38
When will ALTA not engage ALT upon level off?
When <200ft Will go to RHT
39
Which Upper modes drop out below 35Kts? (9)
IAS HDG NAV VS APP GA ALTA DCL NDCL
40
When does “ALTITUDE ALTITUDE” annunciate with RHT engaged?
Discrepancy exists between current height and datum reference of 1/8 height +7ft
41
At what heights can you engage RHT mode?
30 - 2500ft
42
What are the engagement limits for HOV mode?
- Airspeed up to 75kts - RHT 20 - 2500ft - Longitudinal ground speed les that 60kts
43
What are the GA engagement criteria?
>40kts
44
What is the automatic Mode engagement sequence of GA?
1. GA displayed on Coll & Picth 2. HDG mode engaged 3. Climb set to achieve 1000fpm ROC 4. Aircraft pitched to 75kts 5. At 75kts (Vy), 1000fpm and >200ft VS & IAS capture
45
What are the engagement criteria for the NAV mode?
>40kts
46
How can you change the NAV primary source?
NAV Bezel key on the PFD
47
When is ALVL engaged and what height does it take you down to?
<200ft down to 70ft then RHT and IAS engage
48
What does NLOC stand for and why is it different to LOC?
Autonomous Localizer Used FMS, not a ground station
49
What does the DCL mode do and what mode can it be used on?
ILS only 200ft @ 75kts
50
What are the default NDCL parameters?
Initial (3nm) @ 120kts Final (0.5nm) @ 90kts
51
When will NDCL disengage?
- Pressing DCL - Pressing GA/TU - Loss of FMS capture condition - Loss of FMS Valid - <40kts - NAPP mode not armed or engaged on collective axis
52
What happens to NDCL when the MAP is reached?
Disengaged
53
How is the AFCS Preflight test initiated and how long does it take?
On the AFCS Control Panel 2 minutes
54
What does [TEST ABORTED HYDRAULIC PRESSURE LOW] mean?
Insufficient hydraulic pressure from electric hyd pump to perform AFCS test
55
What happens if the CBIT fails in the AFCS?
[1(2) AP FAIL]
56
What generates [1(2) AP HOT]?
>90°C >10s
57
What does the PWR LIM AFCS non-CAS message mean?
Collective Safety Function engaged (generates an aural tone - single chime)
58
What is the Max ROD on an Approach?
900fpm
AW169 Type Rating (Leonardo)
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