ENR 1   Règles et Procédures Générales General Rules and Procedures

ENR 1.8   Procédures de décalage latéral stratégique (SLOP) Strategic lateral offset procedures (SLOP)

I-Espaces CONTINENTAUXI-CONTINENTAL SPACE
OBJETSUBJECT
Dans le cadre de l’amélioration de la sécurité des vols dans son espace aérien supérieur entre les niveaux de vol FL280 et FL460, l’ASECNA a mis en oeuvre à compter du 10 Février 2011 les procédures de décalage latérale stratégiques (SLOP) dans la partie continentale des FIRs Dakar terrestre, Niamey, Brazzaville, Ndjamena et Antananarivo.In the framework of the improvement of safety in its upper airspace between flight level FL280 and FL460, ASECNA implemented service from February 10th, 2011, the strategic lateral offset procedures (SLOP) within its entire continental Dakar, Niamey, Brazzaville, Djamena and Antananarivo FIRs.
PROCEDURESPROCEDURES
Les SLOP sont des procédures strictement pilote dont l’utilisation par un aéronef n’influe pas sur l’application des normes de séparation prescrites et n’engage pas la responsabilité du contrôleur. Le pilote reste responsable de l’application des déviations qui seront limitées dans le temps et dans l’espace.SLOP are strictly pilot elected procedures. The use of SLOP by an aircraft does not affect the application of prescribed separation standards and controller responsibility. The pilot remains accountable for the application of such a procedure limited in time period and in space.
Il doit signaler au Contrôleur avoir repris la navigation normale après une déviation latérale de 1 ou 2 NM à droite de l’axe nominale de sa route.The pilot must report to the controller when normal navigation is resumed after a lateral deviation of 1 or 2 NM right of the axis of the nominal route.
Les pilotes coordonneront leur déviation avec les autres aéronefs sur la fréquence :Pilots may contact other aircraft on the inter-pilot frequency to coordinate offset :
-Dakar Terrestre, Niamey et Antananarivo : 123,45 MHZ.-Dakar Terrestre, Niamey and Antananarivo : 123,45 MHZ
-Brazzaville et N'Djamena : 126,9MHZ-Brazzaville and djamena : 126,9MHZ
L’utilisation des SLOP dans les espaces ASECNA reste conforme aux dispositions du Doc 4444 de l’OACI.The use of SLOP in ASECNA aispaces is in compliance with provisions in ICAO Doc. 4444.
II-DAKAR OCEANIQUEII-DAKAR OCEANIC
Emploi des décalages latéraux stratégiques pour diminuer le risque de collision et la turbulence de sillage dans l'espace RVSM entre le FL280 et le FL410 :Strategic Lateral Offsets in Oceanic Airspace to Mitigate Collision Risk and Wake Turbulence, from FL280 to unlimited.
Les pilotes devront utiliser les procédures de décalages latéraux stratégiques (SLOP, Strategic lateral offset procedures) comme une pratique standard d'exploitation pour diminuer le risque de collision et la turbulence de sillage. Les SLOP seront en vigueur le 20 Janvier 2005 à 0901 TUC dans la FIR Océanique de Dakar. Les décalages latéraux stratégiques seront appliqués uniquement par les aéronefs équipés.Pilots should be use the Strategic Lateral Offset Procedure as Standard operating practice in the course of normal operations to mitigate collision risk and wake turbulence. The strategic lateral offset procedure will be in force on January 20, 2005 at 0901 UTC in the DAKAR OCEANIC FIR.Strategic lateral offset shall be applied only by aircraft with automatic offset tracking capability.
Il y a trois positions dans lesquelles un aéronef devrait voler :There are three positions that an aircraft may flight :
-l'axe de la route,-centerline
-décalage de 1 NM à droite de la route ;-1 NM right
-décalage de 2 NM à droite de la route.-2NM right.
Les décalages latéraux stratégiques n'excèderont pas 2 NM de l'axe. Aucune autorisation de contrôle n'est nécessaire pour ces procédures et il n'est pas nécessaire d'aviser le centre de contrôle. (Les aéronefs transitant par un espace aérien contrôlé au RADAR doivent maintenir leur position de compensation établie sauf en cas d'instruction contraire du centre de contrôle).Offset are not to exceed 2NM right of centerline. There is no ATC Clearance required for this procedure and it is not necessary that ATC be advised Aircraft transiting Radarcontrolled airspace shall remain on their established offset positions unless otherwise instructed by ATC.
SYSTEME DE ROUTE FLEXIBLE
UIR DAKAR OCEANIQUE (GOOO)
FLEXIBLE TRACK SYSTEM (FLEXTRACK)
DAKAR OCEANIC UIR (GOOO)
1- INTRODUCTION
1.1. In the global Air Navigation Plan – Doc 9750, the ICAO introduced the concept of dynamic and flexible ATM as Strategic Objective: Global Plan Initiative (GPI-7). GPI-7 states that routes need not be fixed to pre-determined waypoints except where required for control purposes. GPI-8 enhances the implementation process with Collaborative Decision-Management techniques. It is aimed at organizing airspace in a collaborative manner involving all stakeholders so that airspace is managed to accommodate user-defined flexible routings.
1.2. A Flex route (also called Random Route, User Preferred Route, Free Route of 4D Trajectory) is described as a non fixed route calculated on a daily basis to provide the most efficient flight profile or trajectory on a given city pair or through a specific volume of airspace. The Flex Route can be comprised of any combination of elements including but not limited to: 5 letters waypoint names; latitude/longitude, existing airways, ground based navaids or other significant points.
1.3. The GOOO aims to remove the constraints imposed by the fixed route structure and through the optimized use of all the airspace obtaining benefits of capacity, flexibility, flight efficiency and cost savings, while maintaining safety standards.
1.4. Aircraft Operators will have greater choice for optimum route selection and will benefit from the expected cost savings. While the increasing in demand is expected to continue, the international community is urging fuel savings and emission CO2 reductions/Green House Gases (GHG)
2- AREA OF APPLICABILITY
2.1. Lateral limits: Dakar Oceanic Airspace
2.2. Vertical Limits: Between FL 245 and FL 410
3- IMPLEMENTATION
From the 25 August 2011 Flex Routings are available to all operators.
4- GENERAL PROCEDURES
4.1. Within GOOO airspace users will be able to plan user-preferred trajectories through the used of 5 letters waypoints name code included below. Route portions between waypoints will be indicated by means of “DCT” instruction.
4.2. Waypoints created in Dakar FIR
i ) Within Sal Oceanic FIR / Dakar Terrestrial FIR below new FIR boundary waypoint was established :
• New FIR Entry/Exit Wpts
5NLC Latitude Longitude
SEPOM N 17 20 00 W 020 00 00
Note : From/to SEPOM it is acceptable to file DCT to/from YF VOR only
ii )Within Sal Oceanic FIR / Dakar Oceanic FIR below new FIR boundaries waypoint were established :
• New FIR Entry/Exit Wpts
5NLC Latitude Longitude
NATAS N 16 00 24 W 033 00 00
iii ) Within Cayenne Rochambeau FIR / Dakar Oceanic FIR below new FIR boundary waypoint was established :
• New FIR Entry/Exit Wpts
5NLC Latitude Longitude
ARAGO N 09 48 58 W 035 54 30
GOGSO N 11 40 00 W 036 42 00
iv ) Within Piarco FIR / Dakar FIR below new FIR boundaries waypoint were established :
• New FIR Entry/Exit Wpts
5NLC Latitude Longitude
GANAK N 16 00 00 W 037 30 00
OPADO N 15 00 00 W 037 30 00
v ) Within Dakar Oceanic FIR below new waypoints on Northwestern AORRA boundary were established :
• New AORRA Entry/Exit Wpts
5NLC Latitude Longitude
INATO N 11 15 54 W 022 24 24
UNIKI N 10 32 42 W 022 50 24
NUKEN N 09 49 36 W 023 16 24
PISKA N 09 06 24 W 023 42 12
ERKUS N 08 23 12 W 024 07 54
EPEMI N 07 39 54 W 024 33 36
RAKIM N 06 56 36 W 024 59 06
GANDO N 06 13 18 W 025 24 36
BUVUK N 05 30 00 W 025 50 00
SETOX N 04 47 24 W 026 16 36
KOGUS N 04 04 48 W 026 43 06
Newly created waypoints observe a 100 nautical mile buffer from Atlantico and Sal FIR boundaries
vi )Within Dakar Oceanic FIR below new waypoints crossing the EUR-SAM corridor were established :
• New waypoints crossing UN741
5NLC Latitude Longitude
ENUGO N 13 19 06 W 029 19 48
APOXA N 12 19 48 W 029 53 18
GARKO N 10 46 36 W 030 45 18
MOSAD N 07 48 54 W 032 22 36
• New waypoints crossing UN866
5NLC Latitude Longitude
RIXAD N 12 31 54 W 027 26 24
MOSOK N 11 24 54 W 028 05 36
LIMUK N 09 41 24 W 029 05 30
ENOTO N 06 45 36 W 030 45 42
• New waypoints crossing UN873
5NLC Latitude Longitude
VOMER N 11 48 54 W 025 45 12
GROBA N 10 33 42 W 026 26 54
SEMOG N 08 38 06 W 027 30 06
MESAB N 05 40 00 W 029 06 12
• New waypoints crossing UN857
5NLC Latitude Longitude
APIGU N 11 15 42 W 024 28 24
GONSA N 09 54 30 W 025 12 30
LIRAX N 07 50 30 W 026 18 54
MIKOL N 04 51 48 W 027 53 30
vii )Within Dakar Oceanic FIR, it is acceptable to file in ICAO FPL field 15 a direct (DCT) segment from/to waypoints as indicated in items iv) Piarco/Dakar Oceanic FIR boundary; v) Northwestern AORRA boundary and vi) crossing the EUROSAM
viii )Within Dakar Terrestrial FIR / Abidjan ACC FIR below new FIR boundary waypoint was established :
• New FIR Entry/Exit Wpts
5NLC Latitude Longitude
ARABA N 04 30 26.00 W 003 00 00.00
ix ) Within Abidjan ACC it is acceptable to file in ICAO FPL field 15 a direct (DCT) segment from/to following waypoints :
      a) KOROB DCT RASAD
      b ) AD (VOR) DCT ARABA