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CALCULATION OF MINIMUM LINE-UP DISTANCE CORRECTION Technical Report

ORIGIN EIJ PROJECT MPP REFERENCE X3232RP1300843 ISSUE 1.0 DATE 21 Mar 2012

© AIRBUS S.A.S. 2012. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.

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Calculation of Minimum Line-Up Distance Correction 1. Introduction

Airbus takes the opportunity of the new A350 family introduction to propose an update of the tables of Minimum Line-up Distance Corrections on Take-Off Distance Available (TODA) and Accelerate-Stop Distance Available (ASDA) contained in Airbus manuals. Methodology: Three classic manoeuvres are considered:

1. 90° turn on runway entry 2. 180° turn on runway turn pad 3. 180° turn on a given runway width

Updated assumptions: The updated calculations use more realistic and operational assumptions than in previous version. The major updated assumptions are as follow:

1. Standard runway width sets at 45m (instead of 60m) as defined in ICAO Annex 14. A runway width of 30m is also considered for A320 family.

Note: recommendations contained in Annex 14 regarding the minimum clearance between aircraft wheels and taxiway edges are taken into account and should be met.

2. Effective steering angles for A320 and A321 aircraft now take into account slippage effect (instead of “no slippage” as previously)

3. Assumptions on thrust and braking application are changed to a more operational scenario for tight turns i.e. use of asymmetric thrust and differential braking to initiate the turn only.

4. Standard turnpad geometry as defined in ICAO Annex 14

5. Standard FCOM procedure is applied to compute 180° turn on a given runway width

Results are available below and will be added in the updated Aircraft Characteristic for Airport Planning (AC) manuals for all the Airbus aircraft.




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2. 90° turn on runway entry

This manoeuvre consists in a 90° turn at minimum turn radius starting with the Main Landing Gear (MLG) edge at a distance M2 from taxiway edge, and finishing with the aircraft aligned on the centreline of the runway. During the turn, M1 and M2 clearances must meet minimum value as described in ICAO Annex 14.

feet meters feet meters feet meters feet meters feet meters feet metersA318 75,0 36 10,8 69 21,1A319 75,0 36 11,1 73 22,1A320 75,0 38 11,7 80 24,3A321 75,0 46 13,9 101 30,8 41 12,6 97 29,5A300 65,0 63 19,3 125 38,0A310 65,0 57 17,3 107 32,5

A330-200 (1) 65,0 74 22,5 147 44,7A330-200 (2) 72,0 65 19,7 137 41,9A330-300 (1) 65,0 80 24,2 163 49,6A330-300 (2) 72,0 69 21,2 153 46,5A340-200 (1) 65,0 70 21,5 147 44,7A340-200 (2) 72,0 61 18,6 137 41,8A340-300 (1) 65,0 73 22,2 156 47,6A340-300 (2) 72,0 67 20,5 151 45,9 62 19,0 146 44,4

A340-500 70,0 80 24,5 172 52,5 73 22,1 164 50,1A340-600 76,0 110 33,6 219 66,8 67 20,5 176 53,7A350-800 72,0 69 20,9 150 45,8A350-900 72,0 84 25,7 178 54,3 72 21,8 166 50,5A350-1000 75,0 106 32,2 212 64,7 72 21,9 179 54,4A380-800 70,0 94 28,6 192 58,5 75 22,8 173 52,7N/A

N/A

Same as 45m

Same as 30mSame as 30mSame as 45mSame as 45mSame as 45mSame as 45mSame as 45mSame as 45m

N/AN/AN/AN/A

Same as 30mSame as 30m

Same as 45m

Minimum line-up distance correction

On TODA On ASDA

N/AN/A

30m wide runway

Same as 45mSame as 45mSame as 45m


90° turn on runway entry

Aircraft modelMax steering

angle(degree)

45m wide runway (STANDARD WIDTH)


On TODA On ASDA


On TODA On ASDA

N/AN/A

N/AN/AN/AN/AN/AN/A

60m wide runway




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3. 180° turn on runway turn pad This manoeuvre consists in a 180° turn on a standard ICAO runway turn pad geometry. It starts with MLG edge at a distance M3 from taxiway edge, and it finishes with the aircraft aligned on the centreline of the runway. During the turn, M1, M2 and M3 clearances must meet the minimum value as described in ICAO Annex 14.

feet meters feet meters feet meters feet meters feet meters feet metersA318 75,0 46 14,1 80 24,4A319 75,0 49 15,0 85 26,0A320 75,0 55 16,7 96 29,3A321 75,0 70 21,4 126 38,3 69 21,0 124 37,9A300 65,0 85 25,8 146 44,5A310 65,0 72 21,8 122 37,1

A330-200 (1) 65,0 99 30,1 171 52,2A330-200 (2) 72,0 95 28,9 168 51,1A330-300 (1) 65,0 111 33,7 194 59,1A330-300 (2) 72,0 106 32,4 190 57,8A340-200 (1) 65,0 100 30,5 176 53,7A340-200 (2) 72,0 97 29,5 173 52,7A340-300 (1) 65,0 108 32,8 191 58,2A340-300 (2) 72,0 106 32,2 189 57,6 104 31,7 187 57,1

A340-500 70,0 119 36,2 210 64,2 116 35,2 207 63,2A340-600 76,0 149 45,3 258 78,5 130 39,7 239 72,9A350-800 72,0 104 31,8 186 56,7A350-900 72,0 122 37,2 216 65,9 117 35,7 211 64,4A350-1000 75,0 144 43,9 250 76,3 129 39,4 236 71,9A380-800 70,0 130 39,5 227 69,3 122 37,1 219 66,9

Same as 45mN/AN/AN/AN/AN/A

N/A Same as 45mN/A Same as 45mN/AN/A

N/A Same as 45mN/A Same as 45mN/A Same as 45m

N/A Same as 45mN/A Same as 45mN/A Same as 45m

Same as 30mSame as 30mSame as 30mSame as 45m

N/A Same as 45m



On TODA On ASDA On TODA On ASDA On TODA On ASDA

Same as 30mSame as 30mSame as 30m


angle(degree)

30m wide runway 45m wide runway (STANDARD WIDTH) 60m wide runway


180° turn on runway turn pad




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4. 180° turn on a given runway width For this manoeuvre, the pavement width is considered to be the runway width, which is a frozen parameter (30m, 45m or 60m). As per the “180 deg turn on runway” standard operating procedures described in the Flight Crew Operating Manuals (FCOM), the aircraft is initially angled with respect to runway centerline when starting the 180 deg turn. The value of this angle depends on the aircraft type, and is mentioned in the FCOM. During the turn, M1, M2 and M3 clearances must meet the minimum value as described in ICAO Annex 14.

Note to the table: “Manoeuvre not possible” means that it is not possible for the aircraft to turn on such runway width while maintaining the minimum ICAO recommended margin.




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feet meters feet meters feet meters feet meters feet meters feet metersA318 75.0 46 14.1 80 24.4A319 75.0 49 15.0 85 26.0A320 75.0 70 21.3 111 33.9 55 16.7 96 29.3A321 75.0 69 21.0 124 37.9A300 65.0 94 28.8 156 47.5A310 65.0 93 28.3 143 43.6 72 21.8 122 37.1

A330-200 (1) 65.0 146 44.5 219 66.6A330-200 (2) 72.0 95 28.9 168 51.1A330-300 (1) 65.0 178 54.1 261 79.5A330-300 (2) 72.0 144 43.9 227 69.2A340-200 (1) 65.0 138 42.0 214 65.2A340-200 (2) 72.0 97 29.5 173 52.7A340-300 (1) 65.0 156 47.6 239 73.0A340-300 (2) 72.0 104 31.7 187 57.1

A340-500 70.0 158 48.2 250 76.2A340-600 76.0A350-800 72.0 122 37.1 203 62.0A350-900 72.0 156 47.5 250 76.2A350-1000 75.0A380-800 70.0

Same as 30m Same as 30mSame as 30m Same as 30m


Not possibleNot possibleNot possible

Not possible

Not possibleNot possible

N/AN/AN/A

Not possibleNot possibleNot possibleNot possible

N/AN/AN/AN/AN/A

Not possibleNot possibleNot possibleNot possible

N/AN/AN/A


N/AN/AN/A

N/AN/A

On TODA On ASDA On TODA On ASDA


angle(degree)

30m wide runway 45m wide runway (STANDARD WIDTH)

60m wide runway




On TODA On ASDA


Not possible

180° turn on runway width

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