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Single Engine Operations
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Single engine operations
Engine Failure Standard Strategy Obstacle Strategy Single engine operations
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Single engine operations
Standard Strategy In case of engine failure and if no constraining obstacle is found on the route, the AIRBUS ‘Standard strategy’ will be adopted. It ensures MAX range at the expense of rate of descent and descent ceiling Single engine operations
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Single engine operations
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In case of engine failure the progress page of FMS presents
the LRC ceiling as the REC MAX altitude FL165 Single engine operations
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Single engine operations
FL 166 Single engine operations
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Single engine operations
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Ex: Descent from FL330 to FL160 MCT Thrust GW 68 t Result: Fuel =914 Kg Time 38-12=26 min Dist =181 Nm Single engine operations
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Single engine operations
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Single engine operations
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Single engine operations
Obstacle Strategy If constraining obstacles are met on the route after an engine failure, the ‘AIRBUS Obstacle strategy’ (Drift down) will be adopted in order to maintain the highest possible level. It ensures min rate of descent and max E/O descent ceiling at the expense of range. Single engine operations
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Single engine operations
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Single engine operations
22000 Single engine operations
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Single engine operations
22000 Single engine operations
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Example Determination of LRC ceiling Determination of Drift Down Ceiling Conclusion Single engine operations
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Single engine operations
Example DATA SAT: -36ºC GW kg FL 330 MORA : ft Single engine operations
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Single engine operations
DATA SAT: -36 GW kg FL 330 MORA ft DISA=+15 LRC Ceiling ft LRC Ceiling 16600 ft As LRC ceiling is below the MORA, the Standard strategy can not be adopted. Single engine operations
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Single engine operations
DATA SAT: -36 GW kg FL 330 MORA ft DISA=+15 LRC Ceiling ft As the Drift Down ceiling ( ft) is above the MORA, the Drift Down Procedure is adopted. 19800 Single engine operations
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Single engine operations
Procedure Set MCT on the remaining engine Decelerate to green dot speed: 234 kt Then Descend to level off Set, on FCU green dot speed and pull A/THR : OFF Set on FCU Drift Down Ceiling and pull. Single engine operations
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