CAR/SAM ATN GNSS SEMINAR VARADERO, CUBA 8 MAY 2002

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CAR/SAM ATN GNSS SEMINARVARADERO, CUBA8 MAY
2002

• PROCEDURES FOR AIR NAVIGATION SERVICES-
• OPERATIONS (PANS OPS ICAO DOC. 8168)
• Barry Billmann Federal Aviation
  Administration

Presentation GNSS 6.1
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OVERVIEW

• RESULTS OF OBSTACLE CLEARANCE PANEL (OCP-12)
  MEETING JULY 1999 CONCERNING GNSS
• CURRENT OCP ACTIVITIES REGARDING GNSS AND
  AUGMENTED GNSS
• ILS EQUIVALENCE METHODOLOGY FOR CRITERIA
  DEVELOPMENT
• BAROMETRIC VNAV
• GOALS FOR OCP 13

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OCP 12 OUTCOMES-BASIC GNSS

• RESULTS INCLUDED IN PANS OPS AMENDMENT 12
• Effective November 2001

• PANS OPS VOL. I (PILOT INFORMATION)
• Chapter 7 Part II Basic GNSS Procedures
• Equipment Operational Characteristics
• Equipment Performance Characteristics
• Annex 10 Information Augmented with RTCA DO - 208

• VOL. I MATERIAL TO BE UPDATED WITH AMENDMENT 13
• OTHER PRODUCTS CHARTING AND PROCEDURE NAMING

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OCP 12 OUTCOMES-BASIC GNSS

• PANS OPS VOL. II CRITERIA BASED ON ANNEX 10
  PERFORMANCE BASIC GNSS AVIONICS REQUIREMENTS
• BASIC GNSS RNAV CRITERIA
• Non-Precision Approach (LNAV)
• Departure Criteria
• Terminal Arrival Criteria

• BAROMETRIC VNAV CRITERIA
• LNAV/VNAV
• Criteria Will Be Updated at OCP-13

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OCP 12 OUTCOMES-BASIC GNSS

• GNSS RNAV CRITERIA USES BOTH ACCURACY AND
  INTEGRITY PERFORMANCE REQUIREMENTS
• Criteria is Tighter than DME/DME RNAV or VOR/DME
  Criteria
• Uses Linear Nature of GNSS Navigation System Error

• US TERPS PANS OPS CRITERIA CONSISTENCY
• Differences in Barometric VNAV Surfaces

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CURRENT OCP ACTIVITIESBASIC GNSS

• FOCUS IS ON VERTICALLY GUIDED APPROACHES IN
  RESPONSE
• TO ICAO CFIT INITIATIVE
• DEVELOPMENT OF VISUAL PROTECTION SURFACE FOR
  VERTICALLY GUIDED APPROACHES
• Similar to US TERPS Glideslope Qualification
  Surface (GQS)

• PANS OPS VOL. I
• Update Pilot Information on Multi-Sensor RNAV
• Include Information on Barometric VNAV Procedures

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CURRENT OCP ACTIVITIESBASIC GNSS

• COLD TEMPERATURE COMPENSATION INFORMATION FOR
• BAROMETRIC VNAV PROCEDURES IN VOL. I II
• PANS OPS VOL. II AMENDMENTS
• Update Barometric VNAV Criteria
• Closer to US TERPS Criteria
• Visual Protection Surface For Vertically Guided
  Approaches
• Slightly Steeper than Annex 14 Surface

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CONVAIR COLD TEMP TESTING
Dual Element Temp. Probe Air Data Sensor
Static Source (2)
Pitot Tube (2)
VNAV SENSOR ELEMENTS
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COMPARISON WITH PANS OPSALTITUDE ERROR FOR 10oC
HAA 200 300 400 500 600 700 800 900 1000 1500 2000
PANS 20 30 40 50 60 70 80 90 100 150 200
TEST MEAN 11 17 25 37 45 52 61 72 82 127 168
TEST MEAN 2 SD 41 42 49 59 69 76 88 98 110 161 225
Notes All Values In Feet HAA Height Above
Airport
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COMPARISON WITH PANS OPSALTITUDE ERROR FOR 20oC
HAA 200 300 400 500 600 700 800 900 1000 1500 2000
PANS 30 50 60 70 90 100 120 130 140 210 280
TEST MEAN 11 14 23 34 44 56 68 78 89 142 202
TEST MEAN 2 SD 68 64 75 83 90 95 119 136 146 206 252
Notes All Values In Feet HAA Height Above
Airport
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Steeper than Standard Lapse Rate
Lapse Rate Lessens Close to Surface Conserv
ative Error In GPA Close to DA Excellent
Compensated Performance
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BASIC GNSS HELICOPTERPOINT-IN-SPACE PROCEDURES
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CURRENT OCP ACTIVITIES-SBAS

• SATELLITE BASED AUGMENTATION SYSTEM (SBAS) VOL. I
  MATERIAL DRAFTED
• SBAS VOL. II MATERIAL
• SBAS Precision Approach Criteria
• SBAS Terminal Criteria

• SBAS VOL. II MATERIAL DIFFERENTIATING BAROMETRIC
  VNAV
• PERFORMANCE FROM SBAS VERTICAL PERFORMANCE
• NEW SBAS APPROACH PERFORMANCE SERVICE - LPV
• Lateral Performance Equivalent to Localizer (HAL
  40 m)
• Vertical Performance (20 m lt VAL lt 50 m)

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CURRENT ACTIVITIES-GBAS

• GROUND BASED AUGMENTATION SYSTEM (GBAS) VOL. I
  MATERIAL
• Differences Between SBAS and GBAS
• ILS Look Alike Performance on Final Approach
  Segment
• Lateral Vertical Deviations and Distance to
  Threshold

• GROUND BASED AUGMENTATION SYSTEM (GBAS) VOL. II
  MATERIAL
• Precision Approach Criteria
• Use of ILS Cat. I Collision Risk Model for GBAS
  Procedure
• Design

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CURRENT ACTIVITIESILS EQUIVALENCY

• DEMONSTRATE GBAS AND SBAS ACCURACY PERFORMANCE
• EQUIVALENT TO CAT. I ILS
• OCP-12 REPORT DESCRIBED METHODOLOGY
• Well Structured Flight Tests
• TSE Performance Per Collision Risk Model Manual
• TSE, FTE, NSE Performance Per RNP Manual For
  Approach,
• Landing Departure Operations (Draft)

• RESPONSE FROM 2 STATES AND 1 ORGANIZATION
• RESULT EQUIVALENCE DEMONSTRATED
• Criteria to be Based on Existing ILS Criteria

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KING AIR GPS INSTALLATION
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EUROCONTROL/UK NATS GBAS TRIALS
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OTHER CURRENT ACTIVITIES

• DEVELOP CRITERIA SPECIFICALLY FOR BAROMETRIC VNAV
• DEVELOP SBAS TERMINAL CRITERIA THAT IS MORE
• STRINGENT THAT BASIC GNSS TERMINAL CRITERIA
• FINALIZE SBAS APPROACH PERFORMANCE LEVELS
• GNSS PANEL
• OBSTACLE CLEARANCE PANEL
• OPERATIONS PANEL

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PLANS FOR OCP - 13

• MEETING IN MONTREAL IN OCTOBER 2002
• RESULTING AMENDMENTS TO BE EFFECTIVE NOVEMBER
  2004
• PANS OPS VOL. I AMENDMENTS FOR
• Basic GNSS with Barometric VNAV
• SBAS Performance Levels
• GBAS Described as ILS Look Alike Procedure

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PLANS FOR OCP - 13

• DESCRIPTION OF NEW SURFACE CALLED THE VISUAL
  PROTECTION SURFACE FOR VERTICALLY GUIDED
  APPROACHES
• ADMENDMENT OF BASIC GNSS BAROMETRIC VNAV CRITERIA

• SBAS AMENDMENTS
• Terminal and Precision Approach Criteria
• OTHER ACTIVITIES
• Precision and LOC Only Criteria
• Use of Cat. I ILS Collision Risk Model
• Helicopter Point-in-Space Criteria