12 April, 2004 F E D E R A L A V I A T I O N A D M I N I S T R A T I O N • A I R T R A F F I C O R G A N I Z A T I O N 1

A I R T R A F F I C O R G A N I Z A T I O N

Navigation Reference SystemNavigation Reference System

N R SN R SNational Airspace Redesign

High Altitude Redesign Briefing

April 2005

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Navigation Reference SystemNavigation Reference System

• Initial Implementation:– June 10, 2004– ZAU, ZKC, ZMP, ZDV, ZLC, ZOA, ZSE

• National Implementation:– May 12, 2005– Remaining Centers (48 contiguous states)

• Non-Oceanic and Domestic Airspace Only• Anchorage Center TBD

12 April, 2004 F E D E R A L A V I A T I O N A D M I N I S T R A T I O N • A I R T R A F F I C O R G A N I Z A T I O N 3

Navigation Reference SystemNavigation Reference System

NRS Waypoints may be used:– As part of a filed flight plan

– For route changes requested by flight crews

– Tactically by controllers

NRS Waypoints are currently not intended to be included as part of TMU initiated routes.

12 April, 2004 F E D E R A L A V I A T I O N A D M I N I S T R A T I O N • A I R T R A F F I C O R G A N I Z A T I O N 4

Some aircraft have less that 128K of onboard memory !!!!

Navigation Reference SystemNavigation Reference System

Expect a more immediate use by GA and corporate aircraft, with a gradual increase of usage by Airlines.

Aircraft database memory limitations will restrict user ability to fly the NRS.

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Navigation Reference SystemNavigation Reference System

Customers seek to file flight plans based on their own operational priorities.

– To the maximum extent possible, these aircraft should be left on the filed route.

– Filing via NRS and/or NRR (the Non-Restrictive Routing portion of High Altitude Redesign) gives users freedom to develop a flight path that meets all goals.

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Navigation Reference SystemNavigation Reference System

Aircraft capable of using the NRS should include HARHAR or PTPPTP in remarks.

– HARHAR indicates ability to use all of the NRS.

– PTPPTP indicates Limited or No NRS capability.

Controllers should be aware this is not a mandatory filing standard.

System Users have been asked for voluntary compliance.

It is possible controllers may find conflicting information.

Issues? Notify your NAR FLT so the HAR office can address the problem.

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What Is the Designator to What Is the Designator to Identify Which Aircraft Are Identify Which Aircraft Are

Participating in HAR?Participating in HAR?

HARHAR in field 11 of the flight plan identifies in field 11 of the flight plan identifies aircraft that have the capability of participating aircraft that have the capability of participating

in these functionalities of HAR:in these functionalities of HAR:

– NRS Waypoint

– Waypoints around SUA’s and ATCAA’s

– Pitch / Catch points (Non-Restrictive Routing)

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What Is the Designator to What Is the Designator to Identify Which Aircraft Are Identify Which Aircraft Are

Participating in HAR?Participating in HAR?

PTPPTP in field 11 of the flight plan identifies in field 11 of the flight plan identifies aircraft that have the capability of participating aircraft that have the capability of participating

in in LIMITEDLIMITED functions of HAR: functions of HAR:

– Limited or No NRS Waypoints

– Possible Limitations on• Waypoints around SUA’s and ATCAA’s

• Pitch / Catch points (Non-Restrictive Routing)

12 April, 2004 F E D E R A L A V I A T I O N A D M I N I S T R A T I O N • A I R T R A F F I C O R G A N I Z A T I O N 9

• All Enroute NRS waypoints are FLY BY unless being used for:– holding aircraft– associated with a published SID or STAR

• All controllers should be aware of possible early turn or late turn characteristics associated with high altitude turns.

Fly By vs Fly Over WaypointsFly By vs Fly Over Waypoints

12 April, 2004 F E D E R A L A V I A T I O N A D M I N I S T R A T I O N • A I R T R A F F I C O R G A N I Z A T I O N 10

NRS Naming ConventionNRS Naming Convention

KK

DD

5454

UU

ICAO Designator (US)

Center Designator

Latitude Identifier

Longitude Identifier

K D 5 4 UK D 5 4 U

KILO DELTAFIVE FOURUNIFORM

KILO DELTAFIFTY-FOURUNIFORM

or

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ARTCC DesignatorARTCC Designator

ZSE - S ZMP - P ZBW - B

ZOA - O ZAU - G ZNY - N

ZLA - L ZOB - C ZDC - W

ZLC - U ZKC - K ZID – I

ZDV - D ZME - M ZTL - T

ZAB - A ZFW - F ZJX – J

ZHU – H ZMA - R

12 April, 2004 F E D E R A L A V I A T I O N A D M I N I S T R A T I O N • A I R T R A F F I C O R G A N I Z A T I O N 12

Navigation Reference SystemNavigation Reference System

K D 54 U

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NRS QuestionsNRS Questions

At What Altitude Can NRS Be Used?

NRS waypoints may be used throughout the airspace corresponding to the chart for which they are depicted.

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NRS QuestionsNRS Questions

Controllers must ask the flight crew.

How Do I Know If An Aircraft Who Files “PTP” Can Fly NRS?

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NRS QuestionsNRS Questions

How Can I Use The NRS?

The NRS has many uses. Some examples are:

– Weather Avoidance

– Create Impromptu Parallel Routes

– Routes Around Busy Sectors

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NRS QuestionsNRS Questions

How will an NRS point be displayed on the DSR?

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Discussion

12 April, 2004 F E D E R A L A V I A T I O N A D M I N I S T R A T I O N • A I R T R A F F I C O R G A N I Z A T I O N 18

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