Dash 8 Q300/200 > FMS > Flashcards

FMS Flashcards

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1
Q

How many satellites for a 3-D fix ?

A

Four

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2
Q

What does RAIM stand for?

A

Receiver autonomous integrity monitoring

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3
Q

What does RAIM do?

A

Generates fixes from each possible combination of satellites to detect unreliable or inconsistent data

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4
Q

What happens if one satellite seems to offer bad data?

A 
Fault detection (FD) only: loss of integrity: use alternate nav aid.
Fault detection and exclusion (FDE): software excludes the satellite no affect on navigation
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5
Q

What’s the difference between a loss of RAIM and a RAIM warning?

A

Loss of RAIM means a GNSS position error can’t be calculated and the level of integrity is not known

A RAIM warning mean the GNSS position error is outside tolerance and the level of integrity is known to be unacceptable.

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6
Q

What’s the response to any RAIM event on approach?

A

Missed approach, DR if required

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7
Q

Response to a RAIM event any time you’re not on approach?

A

Use another means of navigation, climb above MSA when in a CTA tell ATC after one minute of RAIM warning/DR mode. in CTA tell ATC after five minutes of loss of RAIM

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8
Q

What phraseology do you use during a RAIM failure?

A

“QLINK 456 RAIM failure”

“QLINK 456 RAIM Restored “

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9
Q

Can the availability of our GNSS receiver be considered for our alternate ?

A

No, only for our destination.

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10
Q

Regardless of the reason for requiring an alternate what do we require to track and fly an approach at our alternate ?

A

Conventional NAV AIDS

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11
Q

What if FD is not available ?

A

Carry RAIM holding fuel. Hold for an actual RAIM outage not for a predicted outage.

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12
Q

At our destination how many NAV aids do we need?

A

At least two

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13
Q

What type of NAV aids can we choose from for our destination ?

A

FMS, VOR1, VOR2, ADF1,ADF2

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14
Q

Who issues RAIM predictions ?

A

US Coastguard and its a 72 hour forecast

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15
Q

When reading RAIM predictions, FD outages greater than how long must be considered ?

A

5 minutes.

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16
Q

All en- route navigation is now RNP what?

A

2

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17
Q

To fly Route LSALT requires what ?

A

RNP 2 tolerances to be flown

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18
Q

Does grid LSALT require RNP 2 ?

A

No

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19
Q

Terminal operations are slowly becoming what ?

A

RNP 1

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20
Q

RNP APCH-LNAV = what ?

A

RNAV(GNSS) approach

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21
Q

Is the VNAV approved at Qlink?

A

No.

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22
Q

What’s the requirement when using the FMS to steer the aircraft below LSAlt ?

A

Any procedure must be contained in the database

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23
Q

If the SID or STAR is based on a VOR/NDB, monitor what ?

A

RMI or bearing pointers

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24
Q

Approaches: NAV source to VOR/LOC for everything except what ?

A

RNP app

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25
Hardware type FMS ?
Single UNS-1C+
26
When initialising the FMS What should you check ?
SCN 802.8 Database expiry Initial position ID with GPS
27
A leg based navigation system has both what ?
A path and a terminator
28
Sequencing to the next leg occurs at the terminator, what may stop this from Happening ?
Manual terminator or GAP, NO LINK
29
What message will you get if sequencing to the next leg is not available ?
Next leg undefined
30
What does RAIM monitor during flight and when will you get a RAIM warning ?
Monitors the spread of positions ( Horizontal integrity limit ) expressed in NM. you get a RAIM warning when HIL>Integrity alarm limit.
31
What does GPS INTEG mean ?
Horizontal integrity limit HIL is unknown or the HIL>alarm limit
32
What do you do about a GPS INTEG ?
GNSS receiver not to be used | Missed approach, or if RNP 1 or RNP 2 routes, use alternate route.
33
What’s BCP accuracy monitoring ?
Monitors actual spread of positions (all sensors) and is the Actual Navigation Performance ANP expressed in Nm
34
What does it mean if ANP>RNP ?
Spread of positions to large for phase of flight and your position is uncertain.
35
What’s the meaning of a position uncertain message ?
Definite GPS INTEG and possible DR mode. | Means that ANP>RNP
36
What’s the meaning of dead reckoning mode (DR) ?
HDG and TAS are the sole Nav sensors.
37
What actions do you take when you get a position uncertain or dead reckoning mode alert ?
Navigate by raw data, not the FMS
38
Sensor priority in terms of degrading quality and priority ?
GNSS, DME/DME/DME, VOR,AIR DATA and AHRS (TAS and HDG)
39
Enroute RNP, IAL and CDI full scale deflection ?
RNP: 2.8 IAL: 1.0 CDI full scale: 5.0
40
Terminal RNP, IAL and CDI full scale deflection ?
RNP: 1.0 IAL: 1.0 CDI full scale: 1.0
41
Approach RNP, IAL and CDI full scale deflection ?
RNP:0.5 IAL:0.3 CDI full scale: 0.3
42
For FMS when is APPR mode active ?
Approach label to end of Approach label
43
When is the FMS in terminal mode ?
Within 30nm of airports at the beginning and end of routes. | Anytime the approach is armed
44
If a SID extends greater than 30nm what must the pilot do ?
Manually enter TERM mode NAV-MENU-NAV DISPLAY (LSK1L) -TERM | Normal mode once the SID is complete
45
When must you manually update the FMS database ?
If today= database expiry day
46
How to manually update the FMS Data base ?
DATA Mode key Line select 1 L:NAV DATA Then NEXT key Line select 1R: activate
47
What to do if you have a power failure of the FMS ?
<7 seconds: auto resumes nothing for you to do From 7 s to 7 mins: power failure screen, must verify current leg and wind > 7 mins: must re initialise, re Aquire GPS position and re enter FPL, fuel, etc
48
What inputs the FMS and what does it output ?
Inputs to the FMS are GNSS,DME,VOR,HDG,TAS,ALT | outputs to the #1 and #2 FGC And then to the EADI and EHSIs
49
When do you get A waypoint alert?
Approaching terminator Steadily on, including the EHSI 15 sec (ENR,TERM) 5 sec (APPR)
50
When will you get a VERT W/P ALERT ?
Approaching the vertical wpt Not EHSI 15 secs
51
How to set FLT NBR ?
FPL-MENU p2- LSK 3 R
52
How to prevent auto-sequencing of waypoints ?
Insert a GAP in the FPL
53
What mode does the autopilot stay in when using command HDG ?
LNAV
54
When’s Pseudo-VOR used ?
When needed to track on a non-FPL radial or bearing.
55
How to define a PVOR course ?
NAV-LSK MNVR-LSK PVOR Reference the fix Define desired track Accept with ENTER
56
How to setup a selected Cross-Track ?
NAV-LSK “MNVR” -LSK “SXTK” Enter desired cross track distance L/R FMS commands 45° intercept of new parallel track path Maintains Crosstrack offset only until next waypoint. Then intercepts next leg
57
How is our VNAV setup ?
Pilot specifies ROD FMS calculates FPA FMS maintains FPA with changing GS,VS
58
When do you get a TOD alert ? And will the aircraft start to descend even if AAS is not set ?
2 mins to go and yes it will
59
Changes to current VNAV leg cause what ?
VNAV disconnect and the aircraft to go into PITCH mode.
60
Level off logic of VNAV ?
At AAS or VNAV target, whichever comes first
61
When would you get an VNAV disconnect ?
GAP/NO LINK / HOLD between you and the VNAV target altitude >12.5 NM off track Any climb segment At approach label > 175’ above pseudo- GS
62
Checking VNAV enroute decent ?
3nm / 1000’ 15,000ft to lose 15×3 = 45 nautical miles descent
63
Checking VNAV from IAF ?
Assume 3° 320 ft/nm From IAF to FAF 10nm, 3200ft From IF to FAF 5nm ,1600ft
64
How long before the fix does the FMS calculate the Entry, size of HOLD ?
15 s
65
When can you ARM the APPR ?
50nm
66
When does the APPR arm Automatically ?
30nm
67
When does ACT approach become available ?
30nm
68
When the APPR is armed what does the FMS do ?
Activates Terminal mode and does a RAIM prediction for the APPR
69
What counts as the APP phase ?
Between the APPR labels
70
Activated APP if what occurs ?
APPR Armed RAIM available Past the APP label Less than 80 degrees track error
71
Annunciator things to note when the APP is activated ?
RNAV App in green on glareshield
72
FMS things to note when APP is activated ?
Scale change alert has come and gone YMAY RNV 25 in blue Green A for app CNCL APP becomes available
73
Inside the APP label what is automatic and what is available ?
ACT APP is automatic | CNCL APP is available
74
Inside the FAF what is still active and what is available ?
The APP is still active and the MISSD APP is available
75
What are the two ways to sequence the MISSD APP ?
The LSK MISSD APP | or the GA button
76
Choosing the APP ?
FPL - MENU - ARRIVE
77
3 things when checking the FMS on first screen ?
802.8 Expiry date And GPS
78
What’s Astrix on the missed approach mean ?
Fly over waypoint
Dash 8 Q300/200
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