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New environmental envelope

Presentation of extended environmental envelopes on Long Range aircraft

Presented by

Hlne DouxSingle Aisle Flight ManualGroup Mgr

OLM FBW 2006 Toulouse 26-28 September 2006

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New environmental envelope 2 OLM FBW 2006

Why?

Need for higher flexibility in operations:

for operations over metric areas

Flight Levels 11 400 m / 12 000 m / 12 600 m

for routes with very low temperatures

New environmental envelopes

What ?

Extensions at high altitude and low temperature:

41 100 ft (12 500 m) 41 450 ft (12 633 m)

41 100 ft = 12 500 m

74C

41 100 ft12 500 m

100 ftMargin

+41 350 ft12 600 m

41 450 ft12 633 m

-78C

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New environmental envelope 3 OLM FBW 2006

A340-500, A340-600 initial envelope

32 500

New environmental envelopes

41450 ft

-78C

-74C

36 050 ft

29 450 ft

A340 CFM

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New environmental envelope 4 OLM FBW 2006

New environmental envelopes

A340-500, A340-600 extended envelope

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New environmental envelope 6 OLM FBW 2006

AVAILABLE s ince end of 2005

AVAILABLE sin ce July 2006

Planning for certification

A340-500A340-600

A330A340-200

A340-300

CERTIFIED since 08 DEC 05CERTIFIED since 18 NOV 05

CERTIFIED since

26 JUL 06

CERTIFIED since

25 JUL 06

MOD 52 536 MOD 54 840

-78C41 450 ft

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A

IRBUS2006S.A.S.Allrightsreserved.Confidentialandp

roprietarydocument.

New environmental envelope 7 OLM FBW 2006

Conclusion

Improvement of cruise limitations in specific airspace flown byLong Range aircraft:

Minimum temperature: 78C for very low temperature routes

Maximum altitude: 41 450ft

FL 12 600 m becomes reachable

Available for LR fleet:

-78C is given to all A330/A340 by default

41 450ft is provided on request (SB 00-3049 and 00-4045 -Mod 52536)

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A

IRBUS2006S.A.S.Allrightsreserved.Confidentialandp

roprietarydocument.

New environmental envelope 8 OLM FBW 2006

Conclusion

Improvement of cruise limitations in specific airspace flown byLong Range aircraft:

Minimum temperature: 78C for very low temperature routes

Maximum altitude: 41 450ft

FL 12 600 m becomes reachable

Available for LR fleet:

-78C is given to all A330/A340 by default

41 450ft is provided on request (SB 00-3049 and 00-4045 -Mod 52536)