enhanced low vision operations · 2019. 8. 19. · cat i cat ii cat iii precision approach...

ENHANCED LOW VISION OPERATIONS

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THE GOAL

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MOVING TOWARD ‘VFR LIKE AIRSPACE’

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• 4D AIRSPACE

APPROACHES TODAY

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ALL HAVE A DECISION POINT PRIOR TO THE RUNWAY THRESHOLD.

LEGACY APPROACHES

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Flare Roll

Take-off

CAT I CAT II CAT III

Precision Approach Visibility Categories Non- Precision

Approaches

MDA 200 DH

2400 RVR 100 DH

1200 RVR

50 DH

600 RVR

Missed Approach Procedure

required if runway not in sight at DH

Instrument

Segment

Visual

Segment

PBN APPROACHES

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Flare Roll

Take-off

Decision Points

Procedure

Decision Alt (DA)

Missed Approach Procedure

required if runway not in sight at DA

PBN

Approaches

200 DA

2400 RVR

FUTURE APPROACH TOOLS

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Flare Roll

Take-off

ILS CAT I

Precision Approach Visibility Categories Non- Precision

Approaches

DA or

MDA

Missed Approach Procedure

required if runway not in sight at DP

PBN

Approaches

New Instrument & Visual Tools

200 DH

2400 RVR

COMMON ELEMENTS

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*Assuming other weather conditions do not supersede and the runway is available.

ENHANCING PBN

GBAS

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EFVS

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SVGS

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MMR

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SURFACE

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Courtesy of Honeywell

Courtesy of Eurocontrol

NAVIGATION & VISUAL ENHANCEMENT

Courtesy of Elbit Systems

Courtesy of FlyRealHUDs

GBAS

• SATELLITE BASED GLS EQUIVALENT OF ILS WITH SINGLE GROUND FACILITY AT

EACH AIRPORT

• GBAS, AN ICAO TERM, IS LOCAL AREA AUGMENTATION.

• AIR CARRIERS PARTIALLY EQUIPPED OR PROVISIONED

• 24 GAST-C LOCATIONS WW (US HAS EWR, HOU & 2 BOEING

FACILITIES)

• FUTURE GAST-D EQUIVALENT TO ILS CAT III

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GPS BASED AUGMENTATION SYSTEMS

EFVS

• USES ‘OPAQUE SCENE’ BUSTING TECHNOLOGY

• INFRARED, MULTI-SPECTRAL CAMERAS AND MILLIMETER WAVE

• MUST USE HEAD UP DISPLAY (HUD) FOR CREDIT

• FUTURE DUAL HUDS BUT MAY BE WEARABLE

• CAN BE COMBINED VISION INCLUDING USE OF SYNTHETIC VISION

• MUST INCLUDE CRITICAL FLIGHT FUNCTIONS ON HUD

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ENHANCED FLIGHT VISION SYSTEMS

CURRENT EFVS

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Flare Roll

Take-off

100 DH

1200 RVR

Missed Approach Procedure required if runway not in sight at DH

1/3 RVR

credit in EU

‘APPROACH TO LAND, TOUCHDOWN & ROLL-OUT’

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ENHANCED FLIGHT VISION SYSTEMS

NEW EFVS RULE INITIAL WITH APPROACH BAN CLEARANCE

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Flare Roll

Take-off

1000 RVR

Missed Approach Procedure required if runway not in sight at DH

NEW EFVS RULE GOAL

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Flare Roll

Take-off

ILS - GBAS – SVGS – MMR

Precision Approach Visibility Categories PBN

Approaches

Missed Approach Procedure required if runway not in sight at DP

SVGS

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• INCLUDES ASSOCIATED IRS AND GPS INPUTS

• USES HUD SYMBOLOGY AS PRECISION GUIDANCE

• CAN BE HEAD-DOWN OR HEAD-UP

• FLIGHT PATH VECTOR TO THE TOUCH DOWN ZONE

• INITIAL BENEFIT EXPECTED TO BE 1800 RVR (150 DH)

SYNTHETIC VISION GUIDANCE SYSTEMS

ANTICIPATED SVGS APPROACHES

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Flare Roll

Take-off

PBN Decision Points

Procedure

Decision Alt (DA)

Missed Approach Procedure

required if runway not in sight at DA

PBN

Approaches

150 DA

1800 RVR

MMR

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• ALL PRIMARY NAVAIDS IN ONE ASSEMBLY

• IMPROVED AND NEW DME (FUTURE)

• UPGRADED GPS (‘LAAS LIKE’)

• ONBOARD PRECISION APPROACH CAPABILITY – NO INFRASTRUCTURE

• RELYING ON UPGRADED AND ADDITIONAL SATELLITES

• POST 2020

MULTI-MODE RECEIVERS

SURFACE

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SURFACE MOVEMENT GUIDANCE CONTROL

ISSUES 1

• GPS VULNERABILITY

• UNINTENTIONAL AND DELIBERATE INTERFERENCE

• BACK UP REQUIRED SUCH AS DME

• INFRASTRUCTURE & AIRCRAFT EQUIPAGE

• FUNDING, OPERATOR COST, PRICES MUST COME DOWN

• ABILITY TO USE NEW TECHNOLOGIES & PROCEDURES

• IF EQUIPPED AND ALLOWED, CONTROLLERS TO ENABLE

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SAFETY IS ASSUMED AS THE NUMBER ONE CONCERN NOW AND GOING FORWARD

ISSUES 2

• EFVS PREDICTABILITY

• NEW TECHNOLOGY AND ‘BLENDING’ WILL RELIABLY SEE THE REQUIRED VISUAL CUES

• HARMONIZATION

• BEING ABLE TO USE ELVO WORLD WIDE UNDER THE SAME RULES & GUIDANCE

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SAFETY IS ASSUMED AS THE NUMBER ONE CONCERN NOW AND GOING FORWARD

THANK YOU

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