MINIMUM NAVIGATION PERFORMANCE SPECIFICATION AIRSPACE (MNPS)
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Transcript of MINIMUM NAVIGATION PERFORMANCE SPECIFICATION AIRSPACE (MNPS)
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MINIMUM NAVIGATION PERFORMANCE
SPECIFICATION AIRSPACE
(MNPS)
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GENERAL
CONTINUING GROWTH OF AVIATION PLACES INCREASING DEMANDS ON AIR SPACE CAPACITY AND EMPHASIZES NEED FOR OPTIMUM UTILIZATION
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CONCEPT
• THE CONCEPT OF MNPS WAS PROPOSED ON A WORLDWIDE BASIS AT THE ICAO 9th AIR NAVIGATION CONFERENCE (1976)
• REQUIRED NAVIGATION PERFORMANCE (RNP) AS A CONCEPT APPLIES TO NAVIGATION PERFORMANCE WITHIN AN AIRSPACE AND THEREFORE AFFECT BOTH THE AIRSPACE AND AIRCRAFT
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OBJECTIVE
TO ENSURE SAFE SEPARATION OF AIRCRAFT AND ENABLE OPERATORS TO DERIVE MAXIMUM ECONOMIC BENEFIT FROM IMPROVEMENT IN NAVIGATION PERFORMANCE DEMONSTRATED IN RECENT YEARS
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WHY RNAV ?APPLICATION OF RNAV TECHNIQUES HASSHOWN TO PROVIDE A NUMBER OFADVANTAGES OVER CONVENTIONAL FORMSOF NAVIGATION:
• ESTABLISHMENT OF MORE DIRECT ROUTES PERMITTING A REDUCTION IN FLIGHT DISTANCES;
• ESTABLISHMENT OF DUAL OR PARALLEL ROUTES TO ACCOMMODATE A GREATER FLOW OF EN-ROUTE TRAFFIC;
Contd.
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• ESTABLISHMENT OF BYPASS ROUTES FOR AIRCRAFT OVERFLYING HIGH-DENSITY TERMINAL AREAS;
• ESTABLISHMENT OF ALTERNATIVES OR CONTINGENCY ROUTES ON EITHER A PLANNED OR AN AD HOC BASIS;
• ESTABLISHMENT OF OPTIMUM LOCATIONS FOR HOLDING PATTERNS; AND
• REDUCTION IN THE NUMBER OF GROUND NAVIGATION FACILITIES.
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DEFINING RNP AIRSPACE
RNP MAY BE SPECIFIED FOR A ROUTE, ANUMBER OF ROUTES, AN AREA, VOLUME OFAIRSPACE OR ANY AIRSPACE OF DEFINEDDIMENSIONS WHICH AN AIRSPACE PLANNEROR AUTHORITY CHOOSES. POTENTIALAPPLICATION OF RNP INCLUDE
• A DEFINED AIRSPACE, SUCH A NORTH ATLANTIC MINIMUM NAVIGATION PERFORMANCE SPECIFICATIONS (MNPS)AIRSPACE;
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• A FIXED ATS ROUTE, SUCH AS BETWEEN SYDNEY, AUSTRALIA AND AUCKLAND, NEW ZEALAND;
• RANDOM TRACK OPERATIONS, SUCH AS BETWEEN HAWAII AND JAPAN; AND
• A VOLUME OF AIRSPACE, SUCH AS A BLOCK ALTITUDE ON A SPECIFIED ROUTE.
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RNP TYPE
RNP TYPE IS INTENDED TO CHARACTERIZE AN AIRSPACE THROUGH A STATEMENT OF THE ACHIEVED NAVIGATION PERFORMANCE ACCURACY (RNP TYPE) TO BE ACHIEVED WITHIN THE AIRSPACE
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NAVIGATION PERFORMANCEACCURACY
BASED ON A NAVIGATION PERFORMANCE ACCURACY VALUE WHICH IS EXPECTED TO BE ACHIEVED ATLEAST 95 PERCENT OF THE TIME BY THE POPULATION OF AIRCRAFT OPERATING WITHIN THE AIRSPACE
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RNP TYPES(GENERAL APPLICATION)
RNP TYPEACCURACY
1 4 12.6 2095 PERCENTPOSITION
+ 1.85 KM + 7.4 KM + 23.3 KM + 37 KM
ACCURACY IN THEDESIGNATEDAIRSPACE
(+ 1.0 NM) (+ 4.0 NM) (+ 12.6 NM) (+ 20.0 NM)
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RELATION OF RNP TO SEPARATION MINIMA
• RNP IS A NAVIGATION REQUIREMENT
• RNP IS ONLY ONE OF THE FACTORS TO BE USED IN THE DETERMINATION OF REQUIRED SEPARATION MINIMA
• RNP ALONE CANNOT AND SHOULD NOT IMPLY OR EXPRESS ANY SEPARATION STANDARD OR MINIMA
• STATE TO CONSIDER THE AIRSPACE INFRASTRUCTURE WHICH INCLUDES SURVEILLANCE AND COMMUNICATION
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RNP SERVICE PROVISION
• STATE MUST ENSURE THAT SERVICES PROVIDE SAFE SEPARATION FOR A DEFINED SET OF SEPARATION STANDARDS
• AIRCRAFT OPERATOR MUST ENSURE THAT AIRCRAFT INTENDING TO OPERATE IN A SPECIFIED RNP AIRSPACE IS EQUIPPED TO ACHIEVE THE REQUIRED NAVIGATION PERFORMANCE
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NAT - MNPS AIRSPACE• BETWEEN LATITUDES 27o N AND 67o N• EASTERN BOUNDRIES OF SANTA MARIA
OCEANIC, AND REYKJAVIK FIR• WESTERN BOUNDRIES OF REYKJAVIK AND
GANDER OCEANIC FIR AND NEW YORK OCEANIC FIR EAST OF LONGITUDE 60o N
• BETWEEN FL 275 & FL 400• IN 1978 LATERAL SEPARATION OF AIRCRAFT
REDUCED FROM 120 NM TO 60 NM & 2000 FOOT VERTICAL SEPARATION RETAINED
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OPERATING REQUIREMENTS(NAT - MNPS)
AS ESTABLISHED BY ICAO:
• ALL OPERATORS DESIRING TO OPERATE MUST SHOW THAT NAVIGATION EQUIPMENT AND PROCEDURES ARE CAPABLE OF CONTINUOUSLY COMPLYING WITH SPECIFICATIONS
• MINIMUM NAVIGATION PERFORMANCE SPECIFICATIONS REQUIRED
– STANDARD DEVIATION (ONE SIGMA) OF LATERAL TRACK SHOULD BE LESS THAN 6.3 NM
Contd.
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– PROPOTION OF TOTAL TIME SPENT BY AIRCRAFT 30 NM OR MORE OFF TRACK SHOULD BE LESS THAN 1 HOUR IN 1900 HRS.
– PROPOTION OF TOTAL FLIGHT TIME SPENT BY AIRCRAFT BETWEEN 50 NM AND 70 NM SHOULD BE LESS THAN 1 HOUR IN 8000 HOURS
– IF INFLIGHT EQUIPMENT UNSERVICEABILITY REDUCES NAVIGATION CAPABILITY, ATC SHOULD BE IMMEDIATELY ADVISED
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OPERATIONAL APPROVAL (NAT - MNPS)
• CERTIFIED OPERATOR SHOULD CONTACT OFFICE MINIMUM OF 30 DAYS PRIOR TO START
• NAVIGATION EQUIPMENT UTILIZED AND ASSOCIATED OPERATING PROCEDURES ARE THE CHOICE OF OPERATOR
• COMBINATION OF EQUIPMENT AND METHOD OF OPERATION MUST MEET THE NAVIGATION ACCURACY ESTABLISHED BY ICAO
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AIRBORNE NAVIGATION EQUIPMENT
ECOMPASSES:• SYSTEMS WHICH USE EXTERNAL
NAVIGATION AIDS SUCH AS VOR/DME, DME/DME, GNSS, OMEGA/VLF, LORAN - C; AND
• SYSTEMS WHICH ARE SELF CONTAINED eg. INS /IRS or GPS
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EQUIPMENT APPORVAL
• AIRWORTHINESS AND OPERATIONAL APPROVAL OF EQUIPMENT RESTS WITH NATIONAL AVIATION AUTHORITIES
• STATES MAY NEED TO AMEND LEGISLATION TO REFLECT USE OF APPROVED RNAV EQUIPMENT IN RNP AIRSPACE
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TRAINING REQUIREMENTS
RESPONSIBILITY OF STATE AUTHORITY TO ENSURE ADEQUATE TRAINING OF FLIGHT CREW AND AIR TRAFFIC CONTROLLERS
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FLIGHT CREW TRAININGTHE TRAINING SHOULD ENSURE THAT
FLIGHT CREWS:• HAVE A GENERAL KNOWLEDGE OF THE
APPLICATION OF RNP;• HAVE A THOROUGH UNDERSTANDING OF
THE EQUIPMENT;• ARE AWARE OF ITS LIMITATIONS;
Contd.
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• HAVE BEEN TRAINED IN THE OPERATING PROCEDURES AND SAFEGUARDS NECESSARY TO OBTAIN OPTIMUM EFFICIENCY AND MAINTENANCE OF REQUIRED NAVIGATIONAL ACCURACY;
• ARE IN CURRENT PRACTICE AND HAVE RECEIVED RECENT TRAINING ON THE EQUIPMENT;
• APPRECIATE THE NEED TO ADVISE ATC SHOULD THE ACCURACY OF THEIR NAVIGATION BE IN DOUBT; AND
• ARE CONVERSANT WITH CONTINGENCY PROCEDURES.
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ATC TRAININGATC TRAINING SHOULD PROVIDE FOR:• POTENTIALLY DIFFERENT RNP TYPE
ROUTES IN THE SAME SECTOR;• TRANSITION BETWEEN DIFFERENT RNP
TYPE AREAS;• RADIOTELEPHONY (RTF) PROCEDURES;• REVISED MILITARY/CIVIL COORDINATION
PROCEDURES;• CONFLICT PREDICTION AND RESOLUTION
ALONG UNPUBLISHED TRACKS; AND• REVISED CONTIGENCY PROCEDURES.