RNAV

Question 1

What does RNAV stand for?

Answer 1

Area Navigation

Question 2

What is RNAV?

Answer 2

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.

Question 3

What does PBN stand for

Answer 3

Performances Based Navigation

Question 4

How does RNAV work?

Answer 4

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.

Question 5

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

Answer 5

Utilises LNAV and VNAV

Question 6

What is Basic Area Navigation B-RNAV?

Answer 6

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

Question 7

Are all IFR a/C B-RNAV compliant?

Answer 7

They must be

Question 8

What track keeping accuracy does B-RNAV require?

Answer 8

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

Question 9

Is B-RNAV used in TMAs?

Answer 9

No not intended for TMA use.

Question 10

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

Answer 10

True.

Question 11

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

Answer 11

True.

Question 12

What are the benefits of R-NAV?

Answer 12

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

Question 13

What are RNPs?

Answer 13

Equipment must be sufficiently capable

And accurate as denoted by the regulatory body.

Question 14

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

Answer 14

True

Question 15

RNP enables implementation of new routes and flight paths

True or False?

Answer 15

True

Question 16

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

Answer 16

True

Question 17

What are the 5 types of RNP accuracy?

Answer 17

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

Question 18

Are the RNP accuracies sufficient for approaches?

Answer 18

No just en-route

Question 19

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

Answer 19

True

Question 20

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

Answer 20

Provide increased seperation

Coordinate with other ATC units as appropriate

Question 21

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?

Answer 21

True

Question 22

Where do Fixed RNP Routes begin and end?

What are established along the way of RNP Routes?

Answer 22

Notified reporting points

Waypoints

Question 23

What are contingency RNP Routes?

Answer 23

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

Question 24

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

Answer 24

True.

Question 25

What are RNP areas?

Answer 25

An area or volume of airspace or airspace of defined dimensions

Question 26

What does RNP stand for?

Answer 26

Required Navigation Performance

Question 27

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

Answer 27

True

Question 28

What does P-RNAV stand for?

Answer 28

Precision RNAV

Question 29

What is P-RNAV?

Answer 29

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

Question 30

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

Answer 30

+/- 1nm

Question 31

Is P-RNAV worldwide or just inEurope?

Answer 31

Europe only

Question 32

Does RNP-RNAV require airborne monitoring?

Answer 32

No, no requirement

Question 33

How is greater accuracy assured with RNP-RNAV?

Answer 33

It is ensured operationally.

Question 34

How accurate are approaches with RNP-RNV?

Answer 34

+/-0.3nm

Question 35

Can RNP-RNAV be used in terminal areas?

Answer 35

Yes

Question 36

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

Answer 36

+/-0.1nm

Question 37

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

Answer 37

+/-0.3nm

Question 38

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

Answer 38

True.

Question 39

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

Answer 39

True

Question 40

List the 3 components PBN is comprised of

Answer 40

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

Question 41

A navigation application is defined as

Answer 41

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

Question 42

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

Answer 42

2-5 seconds

Question 43

4D can only happen if

Answer 43

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