Guidance concerning Air Navigation in and above the NAT MNPSA
OTHER ROUTES AND ROUTE STRUCTURES WITHIN OR ADJACENT TO NAT MNPS AIRSPACE
The Organised Track System is the most significant route structure within NAT MNPS
Airspace. Other route structures within and adjacent to MNPS Airspace are detailed below.
OTHER ROUTES WITHIN NAT MNPS AIRSPACE
Other routes within NAT MNPS Airspace (illustrated in Fig 3) are as follows:
‘Blue Spruce’ Routes, established as special routes for aircraft equipped with only one serviceable LRNS. (Chapter 1 refers.) State approval for MNPS operations is required in order to fly along these routes. (See Chapter 11 for full route definitions);
routes between Northern Europe and Spain/Canaries/Lisbon FIR. (T9* and T16);
* routings between the Azores and the Portuguese mainland and between the Azores and the Madeira Archipelago;
* routings between Iceland and Constable Pynt on the east coast of Greenland and between Kook Islands on the west coast of Greenland and Canada
special routes of short stage lengths where aircraft equipped with normal short-range
navigation equipment can meet the MNPS track-keeping criteria (G3 and G11). approval for MNPS operations is required in order to fly along these routes.
routes identified with an asterisk in sub paragraphs (1), (2), (3) and (4) above may be
flight planned and flown by equipment (VOR, DME, ADF)
approved aircraft equipped with normal short-range and at least one approved fully operational LRNS.
ROUTE STRUCTURES ADJACENT TO NAT MNPS AIRSPACE
North American Routes (NARs)
The North American Routes (NARs) consist of a numbered series of predetermined routes
which provide an interface between NAT oceanic and North American domestic airspace. The NAR System
is designed to accommodate major airports in North America.
Full details of all NAR routings (eastbound and westbound) together with associated
procedures are published in two saleable documents :
the United States Airport Facility Directory - Northeast
and the Canada Flight Supplement
NAT Doc 007