SBAS Offshore Approach Procedure

Philip Church, Helios

Aerodays 2011, Bratislava Room, 30 March 2011
SCOPE
SOAP procedure
Equipment
integration
Flight trial results
Future steps
SBAS Offshore Approach Procedure
(SOAP)
Developed as a safety enhanced procedure
relative to the current ARA and GPS appro...
SOAP Approach Profile
Horizontal Profile
Rig
Offset
distance,
0.25NM

MDR, 0.5NM min
FAF

30°
MAP

IAF

Initial Approach S...
SOAP EGNOS guidance
Rig
Angular sensitivity
FAF
Lateral sensitivity focus

MAP

2°
2°

Abeam point

+/- 0.3NM

Linear sens...
SOAP Equipment Integration
BackBack-End Pallet
Development and logging laptop

ARINC 429
serial
converter

GNSS receiver

AIS receiver
Flight Crew Installation

Instrument display
Blanking plate
OnOn-Board Installation

Rear pallet installed

Flight crew display
installed
Flight Crew Display
Flight Trials
Flight Schedule Approaches
Flight #

Approach #

Descent slope

Wind

LDG/GA

Approach #

1

4°

Into

GA

Data lost

2

6...
1
7
13
19
25
31
37
43
49
55
61
67
73
79
85
91
97
103
109
115
121
127
133
139
145
151
157
163
169
175
181
187
193
199
205
2...
1
7
13
19
25
31
37
43
49
55
61
67
73
79
85
91
97
103
109
115
121
127
133
139
145
151
157
163
169
175
181
187
193
199
205
2...
Flight Path Errors
Lateral Deviations
1444
Mean
Max
Standard
deviation

1459

1513

1024

1039

1058

1322

1334

1353

14...
In conclusion, SOAP was
successfully validated
Flight crew agreed that SOAP is more precise
than existing low visibility o...
Any Questions?

philip.church@askhelios.com

http://hedge.askhelios.com
The HEDGE project has received Community research funding under the 7th Framework Programme

This material reflects only t...
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SBAS offshore approach procedure (HEDGE WP3)

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Presentation at Aerodays 2011, in Madrid, April 2011
Presenter: Philip Church of Helios
philip.church@askhelios.com
_______________________________________________________________________
Follow Helios via Linkedin, www.twitter.com/askhelios and www.facebook.com/askhelios

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SBAS offshore approach procedure (HEDGE WP3)

  1. 1. SBAS Offshore Approach Procedure Philip Church, Helios Aerodays 2011, Bratislava Room, 30 March 2011
  2. 2. SCOPE SOAP procedure Equipment integration Flight trial results Future steps
  3. 3. SBAS Offshore Approach Procedure (SOAP) Developed as a safety enhanced procedure relative to the current ARA and GPS approach procedures Benefits include: • less reliance on weather radar • high navigation accuracy • provides independent cross-check against existing altimeters • allows a “straight in” procedure from final to missed approach • gives much lower crew workload
  4. 4. SOAP Approach Profile Horizontal Profile Rig Offset distance, 0.25NM MDR, 0.5NM min FAF 30° MAP IAF Initial Approach Segment Missed Approach Segment Final Approach Segment Arrival Segment Vertical Profile FAF MAP MDH, min 200ft, 300ft during darkness 0.75NM Level segment IAF 4°or 6° 50ft MSA, 1500ft Deck height 2 NM
  5. 5. SOAP EGNOS guidance Rig Angular sensitivity FAF Lateral sensitivity focus MAP 2° 2° Abeam point +/- 0.3NM Linear sensitivity 10,000ft FAF IAF Angular splay GPA/4 ≈ ILS sensitivity 1500ft Linear sensitivity MDH MAP 200ft below MDH Vertical sensitivity focus 4 NM min
  6. 6. SOAP Equipment Integration
  7. 7. BackBack-End Pallet Development and logging laptop ARINC 429 serial converter GNSS receiver AIS receiver
  8. 8. Flight Crew Installation Instrument display Blanking plate
  9. 9. OnOn-Board Installation Rear pallet installed Flight crew display installed
  10. 10. Flight Crew Display
  11. 11. Flight Trials
  12. 12. Flight Schedule Approaches Flight # Approach # Descent slope Wind LDG/GA Approach # 1 4° Into GA Data lost 2 6° Out of GA 1444 3 4° Out of LDG 1459 4 Pilot choice Pilot choice Pilot choice 1513 1 4° Into GA Data lost 2 6° Out of GA 1024 3 4° Out of LDG 1039 4 Pilot choice Pilot choice Pilot choice 1058 1 4° Into GA 1322 2 6° Out of GA 1334 3 4° Out of LDG 1353 4 Pilot choice Pilot choice Pilot choice 1407 1 2 3
  13. 13. 1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121 127 133 139 145 151 157 163 169 175 181 187 193 199 205 211 217 223 229 235 241 247 253 259 265 271 277 283 289 295 301 Error in metres Lateral Path Deviations 250 200 150 100 50 0 1024 1039 1058 1322 1334 1353 1407 1444 1459 1513
  14. 14. 1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121 127 133 139 145 151 157 163 169 175 181 187 193 199 205 211 217 223 229 235 241 247 253 259 265 271 277 283 289 295 301 Error in metres Vertical Path Deviations 70 60 50 40 30 20 10 0 1024 1039 1058 1322 1334 1353 1407 1444 1459 1513
  15. 15. Flight Path Errors Lateral Deviations 1444 Mean Max Standard deviation 1459 1513 1024 1039 1058 1322 1334 1353 1407 Overall 30.79 56.64 34.97 49.18 27.97 10.87 33.45 8.06 15.73 11.91 26.93 88.53 230.19 164.36 150.07 121.94 60.11 72.97 42.27 48.80 23.05 230.19 23.49 72.35 38.20 45.60 26.36 7.90 18.80 7.58 13.29 6.36 35.22 Vertical Deviations 1444 Mean Max Standard deviation 1459 1513 1024 1039 1058 1322 1334 1353 1407 Overall 17.03 11.77 11.03 9.03 9.54 12.88 9.10 9.97 10.12 18.26 11.80 65.97 25.48 28.75 23.60 20.95 24.30 19.07 27.25 36.71 33.28 65.97 20.39 7.51 7.63 6.58 7.03 6.89 5.14 8.55 11.90 9.37 10.01
  16. 16. In conclusion, SOAP was successfully validated Flight crew agreed that SOAP is more precise than existing low visibility options Horizontal and vertical track keeping is precise but could be improved with changes to HMI Crew comments proposed some improvements to the HMI Further work in the area will be undertaken • UK CAA sponsoring HMI enhancements and additional flight trials in June
  17. 17. Any Questions? philip.church@askhelios.com http://hedge.askhelios.com
  18. 18. The HEDGE project has received Community research funding under the 7th Framework Programme This material reflects only the author’s views and the Community and the GSA are not liable for any use that may be made of the information contained herein

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