Nat doc 001 Guidance and Information Material Concerning


Specific Values for Use in the NAT Region



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icao nat doc 001 air navigation north atlantic
6.3
Specific Values for Use in the NAT Region
6.3.1 The following are stated in the form of separation minima and have been taken from the
ICAO NAT “Regional Supplementary Procedures, (Doc.7030) and 4
th
Edition of the “Application of
Separation Minima North Atlantic Region Document, .
6.3.2 The horizontal separation minima relating to airspace reservations, to be used by ATC, are divided into lateral and longitudinal minimum values (the latter being only stated for moving airspace reservations, as follows.
Separation Minima Between Moving Temporary Reservations
6.3.3 Lateral separation shall be a)
60 NM between the closest tracks of any aircraft for which the airspace is reserved, provided all aircraft or formation flights meet the MNPS; orb NM between the closest tracks of any aircraft for which the airspace is reserved, except that in the New York OCA west of 60
o
W, 90 NM shall be applied.
Note: A formation flight with at least one of the aircraft in the formation meeting MNPS is deemed
to meet the requirement for the application of 60 NM in a) above.
6.3.4 Longitudinal separation shall be 60 minutes.

North Atlantic Guidance Material
6-3 7
th
Edition

2002
Separation Minima Between Stationary Temporary Airspace Reservations
6.3.5 Lateral separation shall be a) 60 NM between the boundaries of stationary temporary airspace reservations, provided the requesting agencies have guaranteed to confine their activities to the requested airspace, except that in the New York OCA west of 60
o
W, 45 NM shall be applied orb NM between the boundaries of the airspace reservations, if no guarantees have been given, except that, in the New York OCA west of 60
o
W, 90 NM shall be applied.
Separation Minima Between Moving Temporary Airspace Reservations and Other Aircraft
6.3.6 Lateral separation shall be a) 60 NM between the track of an aircraft operating under the control of the ATC unit concerned and the closest track of any of the aircraft for which the airspace is reserved, provided all aircraft meet the MNPS requirements and a portion of the route of the aircraft is within, above or below MNPS airspace orb NM between the track of an aircraft operating under the control of the ATC unit concerned and the track of a formation flight for which the airspace has been reserved, provided at least one aircraft in the formation and the aircraft operating under the control of the ATC unit meet the MNPS requirements, and a portion of the route of the aircraft is within, above or below MNPS airspace orc NM between the track of an aircraft operating under the control of the ATC unit concerned and the closest track of any of the aircraft for which the airspace is reserved, except that in the New York OCA west of 60
o
W, 90 NM shall be applied.
6.3.7 Longitudinal separation shall be 60 minutes.
Separation Minima Between Stationary Temporary Airspace Reservations and Other Aircraft
6.3.8 Lateral separation shall be a) 30 NM between the track of an aircraft operating under the control of the ATC unit concerned or as part of a moving airspace reservation and the nearest limit of the reserved airspace, provided the aircraft meets the MNPS requirements and a portion of the route of the aircraft is within, above or below MNPS airspace and the requesting agency has guaranteed to confine its activities to the requested airspace orb NM between the track of an aircraft operating under the control of the ATC unit concerned or as part of a moving airspace reservation and the nearest limit of the reserved airspace, provided the aircraft meets the MNPS requirements and a portion of the route of the aircraft is within, above or below MNPS airspace and the requesting agency has not guaranteed to confine its activities to the requested airspace orc NM between the track of an aircraft operating under the control of the ATC unit concerned or as part of a moving airspace reservation and the nearest limit of the reserved airspace, when the aircraft does not meet the MNPS requirements and the requesting agency


6-4 North Atlantic Guidance Material

7
th
Edition
has guaranteed to confine its activities to the requested airspace, except that, in the New York OCA west of 60
o
W, 45 NM shall be applied or d) 120 NM between the track of an aircraft operating under the control of the ATC unit concerned or as part of a moving airspace reservation and the nearest limit of the reserved airspace, when the aircraft does not meet the MNPS requirements and the requesting agency has not guaranteed to confine its activities to the requested airspace, except that in the New York OCA west of 60
o
W, 90 NM shall be applied.
6.3.9 Minimum longitudinal separation maybe applied between aircraft operating under the control of the ATC unit concerned and the first and last aircraft operating within a moving airspace reservation.
6.3.10 The vertical values used to separate aircraft under the control of an ATC unit from the lower or upper limit of airspace reservations shall be those specified in ICAO Rules of the Air and Air Traffic
Services” (Doc, Part III.




North Atlantic Guidance Material
7-1 7
th
Edition

2002

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