What is the NAT HLA?
What is the NAT HLA?
High Level Airspace (HLA) A large portion of the airspace of the North Atlantic Region, between FLs 285 and 420 inclusive, is designated as the NAT High Level Airspace (NAT HLA). Until February 2016, most of this airspace was designated Minimum Navigation Performance Standards (MNPS) airspace.
What is LRNS in aviation?
An electronic navigation unit that is approved for use under instrument flight rules as a primary means of navigation, and has at least one source of navigational input, such as inertial navigation system or global positioning system. …
What is weather deviation?
When the pilot initiates communications with ATC, a rapid response may be obtained by stating “WEATHER DEVIATION REQUIRED” to indicate that priority is desired on the frequency and for ATC response.
Do operations in the NAT HLA require specific authorization?
A Letter of Authorization is currently required for NAT HLA / NAT operations, but it is issued primarily on the basis of an aircraft’s oceanic PBN capabilities (e.g., RNP-10/4/2) and long range communication equipment.
What information must a pilot give when calling for oceanic clearance?
There are three elements to an Oceanic Clearance: route, Mach Number and flight level. These elements serve to provide for the three basic elements of separation: lateral, longitudinal and vertical. The Oceanic Clearance issued to each aircraft is at a specific flight level and cruise Mach Number.
Where is shanwick Oceanic?
Shanwick is the air traffic control (ATC) name given to the area of international airspace which lies above the northeast part of the Atlantic Ocean. The Shanwick Oceanic Control Area (OCA) abuts Reykjavík OCA to the north, Gander OCA to the west and Santa Maria OCA to the south.
What happened to the ICAO contingency offsets?
The simple answer is this: contingency offsets that previously were 15 NM with actions at 10 NM are basically now all 5 NM offsets with a turn of at least 30 degrees (not 45 degrees). Rarely do we see ICAO oceanic contingency procedures undergo a formal revision.
What are the contingency procedures if prior clearance cannot be obtained?
If prior clearance cannot be obtained, the following contingency procedures should be employed until a revised clearance is received: Leave the cleared route or track by initially turning at least 30 degrees to the right or to the left, in order to intercept and maintain a parallel, direction track or route offset 9.3 km (5.0 NM).
What are the Big Nat changes for the oaccs?
This page has a timeline of big NAT changes, for the six Oceanic Area Control Centres (OACC’s): EGGX/Shanwick, CZQX/Gander, BIRD/Iceland, ENOB/Bodø, LPPO/Santa Maria, and KZWY/New York Oceanic. The “ MAX UPLINK DELAY VALUE TO 300 SECONDS” message will now be sent to all aircraft – and each time you logon to a new OACC.
What does the new Nat Doc 007 mean for You?
In both the NAT Ops Bulletin and the new NAT Doc 007 which will take effect from 28 Mar 2019, ICAO has left out any specific reference to how to divert across the flow of traffic or turn-back procedure, and instead simplified it to just “proceed as required by the operational situation”.
