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RNAV Flashcards

1
Q

What does RNAV stand for?

A

Area Navigation

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2
Q

What is RNAV?

A

A method of navigation which permits a/c operation on any desired flight plan with the coverage of station-referenced navigation aids or within limits of capability of self contained navigation aids/combination of both.

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3
Q

What does PBN stand for

A

Performances Based Navigation

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4
Q

How does RNAV work?

A

Instead of overflying Ground nav aids the A/C FMS will fly to a series of preloaded waypoints and position itself on a computer track between and individual waypoints.

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5
Q

How does the FMS remain within the accuracy of the WGS84 system?

A

Utilises LNAV and VNAV

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6
Q

What is Basic Area Navigation B-RNAV?

A

A forerunner of the RNAV programme. Enables capacity gains through modification to en-route structure

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7
Q

Are all IFR a/C B-RNAV compliant?

A

They must be

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8
Q

What track keeping accuracy does B-RNAV require?

A

+/-5nm for at least 95% if flight time.

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9
Q

Is B-RNAV used in TMAs?

A

No not intended for TMA use.

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10
Q

R-NAV is becoming the standard in ECAC airspace. True or False?

A

True.

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11
Q

R-NAV permits A/C operation on any desired flight path within the coverage of Navigation aids (True or False)

A

True.

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12
Q

What are the benefits of R-NAV?

A 
Reduces RTF by 30% 
$30 million annual saving 
Decreased taxi time
Decreases departure delays 
Improved flight profiles
Reduces distances
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13
Q

What are RNPs?

A

Equipment must be sufficiently capable

And accurate as denoted by the regulatory body.

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14
Q

RNPs are part of a broader concept called PBN. True or False?

A

True

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15
Q

RNP enables implementation of new routes and flight paths

True or False?

A

True

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16
Q

RNP was previously based on INS (inertial navigation) now based on GNSS (GPS)
True or False?

A

True

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17
Q

What are the 5 types of RNP accuracy?

A

1/4/10/12.6/ 20
Represents accuracies of
+/- 1/4/10/12.6/20 nm

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18
Q

Are the RNP accuracies sufficient for approaches?

A

No just en-route

19
Q

ATC should be made aware when it is impossible for an aircraft to maintain its RNP accuracy appropriate to the RNP airspace being used.

A

True

20
Q

What will ATC do when they find out an A/C can now longer comply with RNP accuracies for the route?

A

Provide increased seperation

Coordinate with other ATC units as appropriate

21
Q

Fixed RNP Routes are published ATS Route which can be Flight planned for use by A/C approved for a specific RNP type.
True or False?

A

True

22
Q

Where do Fixed RNP Routes begin and end?

What are established along the way of RNP Routes?

A

Notified reporting points

Waypoints

23
Q

What are contingency RNP Routes?

A

Routes that can be made available to A/C approved for a specific RNP type during limited time periods (hours/days/seasons)

24
Q

RNP Routes can also be established to meet unusual/temporary requirements arising at short notice.
True or False

A

True.

25
Q

What are RNP areas?

A

An area or volume of airspace or airspace of defined dimensions

26
Q

What does RNP stand for?

A

Required Navigation Performance

27
Q

Unpublished tracks(Random Tracks) May be Flight planned with designated and published RNP areas.

A

True

28
Q

What does P-RNAV stand for?

A

Precision RNAV

29
Q

What is P-RNAV?

A

Allows en-route and or TMA operations (standardised EU wide) ensuring consistent levels of flight safety.

30
Q

A/C equipped with P-RNAV must be how accurate to track?

A

+/- 1nm

31
Q

Is P-RNAV worldwide or just inEurope?

A

Europe only

32
Q

Does RNP-RNAV require airborne monitoring?

A

No, no requirement

33
Q

How is greater accuracy assured with RNP-RNAV?

A

It is ensured operationally.

34
Q

How accurate are approaches with RNP-RNV?

A

+/-0.3nm

35
Q

Can RNP-RNAV be used in terminal areas?

A

Yes

36
Q

RNP-APCH requires what accuracy in the initial/intermediate and missed segments?

A

+/-0.1nm

37
Q

What accuracy does RNP-APCH require in the final segment?

A

+/-0.3nm

38
Q

The RNP instrument approach procedures with authorisation required (AR) or RNP AR built upon PBN. True or False?

A

True.

39
Q

RNP AR APCH is defined as an RNP approach procedure that requires a lateral TSE lower than the standard RNP values on sun segment of the approach procedure, down to 0.1nm and similar to ILS cat 2/3

A

True

40
Q

List the 3 components PBN is comprised of

A

1) Navigation Application
2) Navigation Specifications
3) Navigation Infrastructure

41
Q

A navigation application is defined as

A

The implementation of a navigation specification and its supporting navigation infrastructure, applied to routes, procedures and or defined airspace volume

42
Q

4D; a move gate to gate will require accurate timing possibly as strict as

A

2-5 seconds

43
Q

4D can only happen if

A

The aircraft is fitted with a 4D FMS and data link capabilities(and the ATCO) has the tools available.

Navigation (16 decks)

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