Engine Out Standard Instrument Departure
Deviation Point
When an EOSID is considered there is a point beyond which both trajectories divert:
© AIRBUS 2006 S.A.S. All rights reserved. Confidential and proprietary document.
V1
DEVIATION POINT
Title of the presentation |
29 |
OLM FBW 2006 |
Engine Out SID design strategy
© AIRBUS 2006 S.A.S. All rights reserved. Confidential and proprietary document.
5. Determination of a decision point
If engine failure occurs at V1, EOSID is flown
Which procedure should be flown if failure occurs after V1? Can the SID constraints be met?
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CONCLUSION: |
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The DECISION POINT is |
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always before or at the |
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DEVIATION POINT |
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DEVIATION POINT |
Decision Point |
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Engine failure before DP |
Engine failure after DP |
EOSID |
SID |
Title of the presentation |
30 |
OLM FBW 2006 |
EngineDeteOutrmiinaSIDtiiondesignof decstrategyii iion poiint
© AIRBUS 2006 S.A.S. All rights reserved. Confidential and proprietary document.
5. Determination of a decision point
If engine failure occurs at V1, EOSID will be flown What will happen if failure occurs after V1 ? Could the SID or the EOSID be flown ?
Decision Point
Engine failure before DP |
Engine failure after DP |
EOSID |
SID |
Title of the presentation |
31 |
OLM FBW 2006 |
EngineDeteOutrmiinaSIDtiiondesignof decstrategyii iion poiint
© AIRBUS 2006 S.A.S. All rights reserved. Confidential and proprietary document.
5. Determination of a decision point
Determine takeoff flight path all engines operative
–Noise definition manual
–OCTOPER
Draw the path on a chart
On the chart, place the altitude constraint
Title of the presentation |
32 |
OLM FBW 2006 |
EngineDeteOutrmiinaSIDtiiondesignof decstrategyii iion poiint
© AIRBUS 2006 S.A.S. All rights reserved. Confidential and proprietary document.
5. Determination of a decision point
Altitude
Constraint
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Note : Distance to be |
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Distance |
Title of the presentation |
33 |
OLM FBW 2006 |
EngineDeteOutrmiinaSIDtiiondesignof decstrategyii iion poiint
5. Determination of a decision point
Starting from constraint draw back the one engine inoperative
flight path
Altitude
Constraint
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© AIRBUS 2006 S.A.S. All rights reserved. Confidential and proprietary document.
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Distance
Title of the presentation |
34 |
OLM FBW 2006 |
EngineDeteOutrmiinaSIDtiiondesignof decstrategyii iion poiint
© AIRBUS 2006 S.A.S. All rights reserved. Confidential and proprietary document.
5. Determination of a decision point
Intersection between both flight paths gives the decision point
Altitude
Constraint
X
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Y |
Distance |
Title of the presentation |
35 |
OLM FBW 2006 |
EngineDeteOutrmiinaSIDtiiondesignof decstrategyii iion poiint
© AIRBUS 2006 S.A.S. All rights reserved. Confidential and proprietary document.
5. Determination of a decision point
A straightforward method is to take decision point equal to deviation point
–Easy to find
–Does not let time to the pilot to prepare for the diversion
The decision point shall be validated
–By checking the net flight path after DP
–By ensuring obstacle clearance after DP
Title of the presentation |
36 |
OLM FBW 2006 |